UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
[X] Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended March 31,September 30, 2018
or
[  ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the transition period from ______ to _______
Commission
File Number
 
Exact name of registrant as specified in its charter;
State or other jurisdiction of incorporation or organization
 
IRS Employer
Identification No.
001-14881 BERKSHIRE HATHAWAY ENERGY COMPANY 94-2213782
  (An Iowa Corporation)  
  666 Grand Avenue, Suite 500  
  Des Moines, Iowa 50309-2580  
  515-242-4300  
     
001-05152 PACIFICORP 93-0246090
  (An Oregon Corporation)  
  825 N.E. Multnomah Street  
  Portland, Oregon 97232  
  888-221-7070  
     
333-90553 MIDAMERICAN FUNDING, LLC 47-0819200
  (An Iowa Limited Liability Company)  
  666 Grand Avenue, Suite 500  
  Des Moines, Iowa 50309-2580  
  515-242-4300  
     
333-15387 MIDAMERICAN ENERGY COMPANY 42-1425214
  (An Iowa Corporation)  
  666 Grand Avenue, Suite 500  
  Des Moines, Iowa 50309-2580  
  515-242-4300  
     
000-52378 NEVADA POWER COMPANY 88-0420104
  (A Nevada Corporation)  
  6226 West Sahara Avenue  
  Las Vegas, Nevada 89146  
  702-402-5000  
     
000-00508 SIERRA PACIFIC POWER COMPANY 88-0044418
  (A Nevada Corporation)  
  6100 Neil Road  
  Reno, Nevada 89511  
  775-834-4011  
     
  N/A  
  (Former name or former address, if changed from last report)  


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
RegistrantYesNo
BERKSHIRE HATHAWAY ENERGY COMPANYX 
PACIFICORPX 
MIDAMERICAN FUNDING, LLC X
MIDAMERICAN ENERGY COMPANYX 
NEVADA POWER COMPANYX 
SIERRA PACIFIC POWER COMPANYX 
Indicate by check mark whether the registrants have submitted electronically and posted on their corporate Web sites, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrants were required to submit and post such files). Yes  x  No  o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
RegistrantLarge accelerated filerAccelerated filerNon-accelerated filerSmaller reporting companyEmerging growth company
BERKSHIRE HATHAWAY ENERGY COMPANY  X  
PACIFICORP  X  
MIDAMERICAN FUNDING, LLC  X  
MIDAMERICAN ENERGY COMPANY  X  
NEVADA POWER COMPANY  X  
SIERRA PACIFIC POWER COMPANY  X  
If an emerging growth company, indicate by check mark if the registrants have elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o
Indicate by check mark whether the registrants are a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes  o  No  x
All shares of outstanding common stock of Berkshire Hathaway Energy Company are privately held by a limited group of investors. As of April 30,October 31, 2018, 77,025,04476,996,944 shares of common stock, no par value, were outstanding.
All shares of outstanding common stock of PacifiCorp are indirectly owned by Berkshire Hathaway Energy Company. As of April 30,October 31, 2018, 357,060,915 shares of common stock, no par value, were outstanding.
All of the member's equity of MidAmerican Funding, LLC is held by its parent company, Berkshire Hathaway Energy Company, as of April 30,October 31, 2018.
All shares of outstanding common stock of MidAmerican Energy Company are owned by its parent company, MHC Inc., which is a direct, wholly owned subsidiary of MidAmerican Funding, LLC. As of April 30,October 31, 2018, 70,980,203 shares of common stock, no par value, were outstanding.
All shares of outstanding common stock of Nevada Power Company are owned by its parent company, NV Energy, Inc., which is an indirect, wholly owned subsidiary of Berkshire Hathaway Energy Company. As of April 30,October 31, 2018, 1,000 shares of common stock, $1.00 stated value, were outstanding.
All shares of outstanding common stock of Sierra Pacific Power Company are owned by its parent company, NV Energy, Inc. As of April 30,October 31, 2018, 1,000 shares of common stock, $3.75 par value, were outstanding.
This combined Form 10-Q is separately filed by Berkshire Hathaway Energy Company, PacifiCorp, MidAmerican Funding, LLC, MidAmerican Energy Company, Nevada Power Company and Sierra Pacific Power Company. Information contained herein relating to any individual company is filed by such company on its own behalf. Each company makes no representation as to information relating to the other companies.



TABLE OF CONTENTS
 
PART I
 
 
PART II
 
 


i



Definition of Abbreviations and Industry Terms

When used in Forward-Looking Statements, Part I - Items 2 through 3, and Part II - Items 1 through 6, the following terms have the definitions indicated.
Berkshire Hathaway Energy Company and Related Entities
BHE Berkshire Hathaway Energy Company
Berkshire Hathaway Energy or the Company Berkshire Hathaway Energy Company and its subsidiaries
PacifiCorp PacifiCorp and its subsidiaries
MidAmerican Funding MidAmerican Funding, LLC and its subsidiaries
MidAmerican Energy MidAmerican Energy Company
NV Energy NV Energy, Inc. and its subsidiaries
Nevada Power Nevada Power Company and its subsidiaries
Sierra Pacific Sierra Pacific Power Company and its subsidiaries
Nevada Utilities Nevada Power Company and Sierra Pacific Power Company
Registrants Berkshire Hathaway Energy Company, PacifiCorp, MidAmerican Funding, MidAmerican Energy, Nevada Power and Sierra Pacific
Subsidiary Registrants PacifiCorp, MidAmerican Funding, MidAmerican Energy, Nevada Power and Sierra Pacific
Northern Powergrid Northern Powergrid Holdings Company
Northern Natural Gas Northern Natural Gas Company
Kern River Kern River Gas Transmission Company
AltaLink BHE Canada Holdings Corporation
ALP AltaLink, L.P.
BHE U.S. Transmission BHE U.S. Transmission, LLC
HomeServices HomeServices of America, Inc. and its subsidiaries
BHE Pipeline Group or Pipeline Companies Consists of Northern Natural Gas and Kern River
BHE Transmission Consists of AltaLink and BHE U.S. Transmission
BHE Renewables Consists of BHE Renewables, LLC and CalEnergy Philippines
Utilities PacifiCorp, MidAmerican Energy Company, Nevada Power Company and Sierra Pacific Power Company
Berkshire Hathaway Berkshire Hathaway Inc.
   
Certain Industry Terms  
AESO Alberta Electric System Operator
AFUDC Allowance for Funds Used During Construction
AUC Alberta Utilities Commission
CPUC California Public Utilities Commission
Dth Decatherms
EBA Energy Balancing Account
ECAM Energy Cost Adjustment Mechanism
EPA United States Environmental Protection Agency
FERC Federal Energy Regulatory Commission
GHG Greenhouse Gases
GWh Gigawatt Hours
GTA General Tariff Application
IPUC Idaho Public Utilities Commission
IUB Iowa Utilities Board

ii



kV Kilovolt
MW Megawatts
MWh Megawatt Hours
OPUC Oregon Public Utility Commission
PCAMPower Cost Adjustment Mechanism
PUCN Public Utilities Commission of Nevada
REC Renewable Energy Credit
RPS Renewable Portfolio Standards
RRA
Renewable Energy Credit and Sulfur DioxideRevenue Adjustment Mechanism
SEC United States Securities and Exchange Commission
SIP State Implementation Plan
TAM Transition Adjustment Mechanism
UPSC Utah Public Service Commission
WPSC Wyoming Public Service Commission
WUTC Washington Utilities and Transportation Commission

Forward-Looking Statements

This report contains statements that do not directly or exclusively relate to historical facts. These statements are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements can typically be identified by the use of forward-looking words, such as "will," "may," "could," "project," "believe," "anticipate," "expect," "estimate," "continue," "intend," "potential," "plan," "forecast" and similar terms. These statements are based upon the relevant Registrant's current intentions, assumptions, expectations and beliefs and are subject to risks, uncertainties and other important factors. Many of these factors are outside the control of each Registrant and could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include, among others:
general economic, political and business conditions, as well as changes in, and compliance with, laws and regulations, including income tax reform, initiatives regarding deregulation and restructuring of the utility industry, and reliability and safety standards, affecting the respective Registrant's operations or related industries;
changes in, and compliance with, environmental laws, regulations, decisions and policies that could, among other items, increase operating and capital costs, reduce facility output, accelerate facility retirements or delay facility construction or acquisition;
the outcome of regulatory rate reviews and other proceedings conducted by regulatory agencies or other governmental and legal bodies and the respective Registrant's ability to recover costs through rates in a timely manner;
changes in economic, industry, competition or weather conditions, as well as demographic trends, new technologies and various conservation, energy efficiency and private generation measures and programs, that could affect customer growth and usage, electricity and natural gas supply or the respective Registrant's ability to obtain long-term contracts with customers and suppliers;
performance, availability and ongoing operation of the respective Registrant's facilities, including facilities not operated by the Registrants, due to the impacts of market conditions, outages and repairs, transmission constraints, weather, including wind, solar and hydroelectric conditions, and operating conditions;
the effects of catastrophic and other unforeseen events, which may be caused by factors beyond the control of each respective Registrant or by a breakdown or failure of the Registrants' operating assets, including severe storms, floods, fires, earthquakes, explosions, landslides, an electromagnetic pulse, mining incidents, litigation, wars, terrorism, embargoes, and cyber security attacks, data security breaches, disruptions, or other malicious acts;
a high degree of variance between actual and forecasted load or generation that could impact a Registrant's hedging strategy and the cost of balancing its generation resources with its retail load obligations;
changes in prices, availability and demand for wholesale electricity, coal, natural gas, other fuel sources and fuel transportation that could have a significant impact on generating capacity and energy costs;
the financial condition and creditworthiness of the respective Registrant's significant customers and suppliers;
changes in business strategy or development plans;

iii



changes in business strategy or development plans;
availability, terms and deployment of capital, including reductions in demand for investment-grade commercial paper, debt securities and other sources of debt financing and volatility in interest rates;
changes in the respective Registrant's credit ratings;
risks relating to nuclear generation, including unique operational, closure and decommissioning risks;
hydroelectric conditions and the cost, feasibility and eventual outcome of hydroelectric relicensing proceedings;
the impact of certain contracts used to mitigate or manage volume, price and interest rate risk, including increased collateral requirements, and changes in commodity prices, interest rates and other conditions that affect the fair value of certain contracts;
the impact of inflation on costs and the ability of the respective Registrants to recover such costs in regulated rates;
fluctuations in foreign currency exchange rates, primarily the British pound and the Canadian dollar;
increases in employee healthcare costs;
the impact of investment performance and changes in interest rates, legislation, healthcare cost trends, mortality and morbidity on pension and other postretirement benefits expense and funding requirements;
changes in the residential real estate brokerage, mortgage and franchising industries and regulations that could affect brokerage, mortgage and franchising transactions;
the ability to successfully integrate future acquired operations into a Registrant's business;
unanticipated construction delays, changes in costs, receipt of required permits and authorizations, ability to fund capital projects and other factors that could affect future facilities and infrastructure additions;
the availability and price of natural gas in applicable geographic regions and demand for natural gas supply;
the impact of new accounting guidance or changes in current accounting estimates and assumptions on the consolidated financial results of the respective Registrants; and
other business or investment considerations that may be disclosed from time to time in the Registrants' filings with the SEC or in other publicly disseminated written documents.
 
Further details of the potential risks and uncertainties affecting the Registrants are described in the Registrants' filings with the SEC, including Part II, Item 1A and other discussions contained in this Form 10-Q. Each Registrant undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. The foregoing factors should not be construed as exclusive.


iv



Item 1.Financial Statements
Berkshire Hathaway Energy Company and its subsidiaries  
 
 
 
 
 
 
 
PacifiCorp and its subsidiaries  
 
 
 
 
 
 
MidAmerican Energy Company  
 
 
 
 
 
 
MidAmerican Funding, LLC and its subsidiaries  
 
 
 
 
 
 
Nevada Power Company and its subsidiaries  
 
 
 
 
 
 
Sierra Pacific Power Company and its subsidiaries  
 
 
 
 
 
 




Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations
 
 
 
 
 




Berkshire Hathaway Energy Company and its subsidiaries
Consolidated Financial Section





PART I
Item 1.Financial Statements


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Shareholders of Berkshire Hathaway Energy Company

Results of Review of Interim Financial Information

We have reviewed the accompanying consolidated balance sheet of Berkshire Hathaway Energy Company and subsidiaries (the "Company") as of March 31,September 30, 2018, the related consolidated statements of operations and comprehensive income for the three-month and nine-month periods ended September 30, 2018 and 2017, and of changes in equity and cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial statementsinformation for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2017, and the related consolidated statements of operations, comprehensive income, changes in equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This interim financial information is the responsibility of the Company's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with the standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.


/s/ Deloitte & Touche LLP


Des Moines, Iowa
May 7,November 2, 2018


BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
ASSETS
Current assets:      
Cash and cash equivalents$1,644
 $935
$1,016
 $935
Restricted cash and cash equivalents212
 327
358
 327
Trade receivables, net1,772
 2,014
2,198
 2,014
Income taxes receivable458
 334
Income tax receivable
 334
Inventories864
 888
851
 888
Mortgage loans held for sale440
 465
501
 465
Other current assets963
 815
860
 815
Total current assets6,353
 5,778
5,784
 5,778
 
  
 
  
Property, plant and equipment, net66,054
 65,871
67,587
 65,871
Goodwill9,665
 9,678
9,683
 9,678
Regulatory assets2,812
 2,761
2,778
 2,761
Investments and restricted cash and cash equivalents and investments4,796
 4,872
4,754
 4,872
Other assets1,232
 1,248
1,276
 1,248
 
  
   
Total assets$90,912
 $90,208
$91,862
 $90,208

The accompanying notes are an integral part of these consolidated financial statements.



BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited) (continued)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
LIABILITIES AND EQUITY
Current liabilities:      
Accounts payable$1,089
 $1,519
$1,331
 $1,519
Accrued interest507
 488
518
 488
Accrued property, income and other taxes446
 354
543
 354
Accrued employee expenses319
 274
414
 274
Short-term debt2,608
 4,488
1,784
 4,488
Current portion of long-term debt4,314
 3,431
2,205
 3,431
Other current liabilities1,209
 1,049
1,026
 1,049
Total current liabilities10,492
 11,603
7,821
 11,603
 
  
 
  
BHE senior debt7,627
 5,452
8,620
 5,452
BHE junior subordinated debentures100
 100
100
 100
Subsidiary debt25,457
 26,210
26,633
 26,210
Regulatory liabilities7,368
 7,309
7,553
 7,309
Deferred income taxes8,086
 8,242
8,895
 8,242
Other long-term liabilities2,988
 2,984
2,552
 2,984
Total liabilities62,118
 61,900
62,174
 61,900
 
  
 
  
Commitments and contingencies (Note 10)

 

  

 
  
 
  
Equity: 
  
 
  
BHE shareholders' equity: 
  
 
  
Common stock - 115 shares authorized, no par value, 77 shares issued and outstanding
 

 
Additional paid-in capital6,363
 6,368
6,357
 6,368
Long-term income tax receivable(494) 
Retained earnings23,719
 22,206
25,361
 22,206
Accumulated other comprehensive loss, net(1,415) (398)(1,667) (398)
Total BHE shareholders' equity28,667
 28,176
29,557
 28,176
Noncontrolling interests127
 132
131
 132
Total equity28,794
 28,308
29,688
 28,308
 
  
   
Total liabilities and equity$90,912
 $90,208
$91,862
 $90,208

The accompanying notes are an integral part of these consolidated financial statements.



BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Energy$3,679
 $3,581
$4,419
 $4,322
 $11,818
 $11,501
Real estate761
 585
1,218
 961
 3,252
 2,502
Total operating revenue4,440
 4,166
5,637
 5,283
 15,070
 14,003
          
Operating costs and expenses:   
Operating expenses:       
Energy:          
Cost of sales1,168
 1,119
1,271
 1,212
 3,565
 3,380
Operating expense928
 887
Operations and maintenance901
 772
 2,534
 2,334
Depreciation and amortization704
 610
667
 635
 2,110
 1,905
Property and other taxes142
 142
 428
 421
Real estate769
 583
1,133
 882
 3,067
 2,311
Total operating costs and expenses3,569
 3,199
Total operating expenses4,114
 3,643
 11,704
 10,351
          
Operating income871
 967
1,523
 1,640
 3,366
 3,652
          
Other income (expense):          
Interest expense(466) (458)(453) (464) (1,380) (1,379)
Capitalized interest12
 10
17
 14
 44
 34
Allowance for equity funds21
 17
30
 24
 75
 59
Interest and dividend income26
 26
27
 32
 85
 85
Realized and unrealized (loss) gain on marketable securities, net(209) 3
Gains (losses) on marketable securities, net260
 3
 (336) 8
Other, net30
 26
19
 (17) 50
 8
Total other income (expense)(586) (376)(100) (408) (1,462) (1,185)
          
Income before income tax (benefit) expense and equity income285
 591
Income tax (benefit) expense(221) 52
Income before income tax expense (benefit) and equity income1,423
 1,232
 1,904
 2,467
Income tax expense (benefit)23
 184
 (366) 319
Equity income12
 24
9
 30
 35
 80
Net income518
 563
1,409
 1,078
 2,305
 2,228
Net income attributable to noncontrolling interests5
 7
8
 10
 19
 30
Net income attributable to BHE shareholders$513
 $556
$1,401
 $1,068
 $2,286
 $2,198

The accompanying notes are an integral part of these consolidated financial statements.
 


BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Net income$518
 $563
$1,409
 $1,078
 $2,305
 $2,228
          
Other comprehensive income, net of tax:          
Unrecognized amounts on retirement benefits, net of tax of $(4) and $(1)(3) 5
Unrecognized amounts on retirement benefits, net of tax of $-, $1, $12 and $(3)(1) 15
 50
 16
Foreign currency translation adjustment73
 87
(2) 227
 (236) 535
Unrealized gains on marketable securities, net of tax of $- and $18
 38
Unrealized losses on cash flow hedges, net of tax of $(1) and $(2)(2) (4)
Total other comprehensive income, net of tax68
 126
Unrealized gains on marketable securities, net of tax of $-, $284, $- and $355
 423
 
 542
Unrealized gains (losses) on cash flow hedges, net of tax of $(1), $1, $(1) and $(3)1
 1
 2
 (5)
Total other comprehensive (loss) income, net of tax(2) 666
 (184) 1,088
 
  
 
  
  
  
Comprehensive income586
 689
1,407
 1,744
 2,121
 3,316
Comprehensive income attributable to noncontrolling interests5
 7
8
 10
 19
 30
Comprehensive income attributable to BHE shareholders$581
 $682
$1,399
 $1,734
 $2,102
 $3,286

The accompanying notes are an integral part of these consolidated financial statements.



BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited)
(Amounts in millions)

BHE Shareholders' Equity    BHE Shareholders' Equity   
        Accumulated          Long-term   Accumulated    
    Additional   Other        Additional Income   Other    
Common Paid-in Retained Comprehensive Noncontrolling TotalCommon Paid-in Tax Retained Comprehensive Noncontrolling Total
Shares Stock Capital Earnings Loss, Net Interests EquityShares Stock Capital Receivable Earnings Loss, Net Interests Equity
                            
Balance, December 31, 201677
 $
 $6,390
 $19,448
 $(1,511) $136
 $24,463
77
 $
 $6,390
 $
 $19,448
 $(1,511) $136
 $24,463
Net income
 
 
 556
 
 4
 560

 
 
 
 2,198
 
 14
 2,212
Other comprehensive loss
 
 
 
 126
 
 126
Other comprehensive income
 
 
 
 
 1,088
 
 1,088
Common stock purchases
 
 (1) 
 (18) 
 
 (19)
Common stock exchange
 
 (6) 
 (94) 
 
 (100)
Distributions
 
 
 
 
 (7) (7)
 
 
 
 
 
 (16) (16)
Common stock purchases
 
 (1) (18) 
 
 (19)
Other equity transactions
 
 (8) 
 
 (3) (11)
 
 (21) 
 
 
 (3) (24)
Balance, March 31, 201777
 $
 $6,381
 $19,986
 $(1,385) $130
 $25,112
Balance, September 30, 201777
 $
 $6,362
 $
 $21,534
 $(423) $131
 $27,604
 
  
  
  
  
  
  
 
  
  
    
  
  
  
Balance, December 31, 201777
 $
 $6,368
 $22,206
 $(398) $132
 $28,308
77
 $
 $6,368
 $
 $22,206
 $(398) $132
 $28,308
Adoption of ASU 2016-01
 
 
 
 1,085
 (1,085) 
 
Net income
 
 
 513
 
 4
 517

 
 
 
 2,286
 
 16
 2,302
Other comprehensive income
 
 
 
 68
 
 68
Adoption of ASU 2016-01
 
 
 1,085
 (1,085) 
 
Other comprehensive loss
 
 
 
 
 (184) 
 (184)
Reclassification of long-term
income tax receivable

 
 
 (609) 
 
 
 (609)
Long-term income tax
receivable adjustments

 
 
 115
 (115) 
 
 
Common stock purchases
 
 (6) 
 (101) 
 
 (107)
Distributions
 
 
 
 
 (9) (9)
 
 
 
 
 
 (17) (17)
Common stock purchases
 
 (5) (85) 
 
 (90)
Balance, March 31, 201877
 $
 $6,363
 $23,719
 $(1,415) $127
 $28,794
Other equity transactions
 
 (5) 
 
 
 
 (5)
Balance, September 30, 201877
 $
 $6,357
 $(494) $25,361
 $(1,667) $131
 $29,688

The accompanying notes are an integral part of these consolidated financial statements.



BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$518
 $563
$2,305
 $2,228
Adjustments to reconcile net income to net cash flows from operating activities: 
  
 
  
Realized and unrealized loss (gain) on marketable securities, net209
 (3)
Losses (gains) on marketable securities, net336
 (8)
Depreciation and amortization716
 622
2,147
 1,943
Allowance for equity funds(21) (17)(75) (59)
Equity income, net of distributions(5) (13)17
 (14)
Changes in regulatory assets and liabilities94
 20
263
 17
Deferred income taxes and amortization of investment tax credits(166) 224
(116) 573
Other, net19
 (2)40
 21
Changes in other operating assets and liabilities, net of effects from acquisitions:      
Trade receivables and other assets250
 308
(192) (82)
Derivative collateral, net(14) (23)9
 (16)
Pension and other postretirement benefit plans(21) (17)(61) (29)
Accrued property, income and other taxes(60) (187)
Accrued property, income and other taxes, net190
 390
Accounts payable and other liabilities(40) (37)168
 170
Net cash flows from operating activities1,479
 1,438
5,031
 5,134
 
  
 
  
Cash flows from investing activities: 
  
 
  
Capital expenditures(1,075) (865)(4,203) (3,179)
Acquisitions, net of cash acquired
 (579)(105) (1,102)
Purchases of marketable securities(155) (81)(287) (167)
Proceeds from sales of marketable securities132
 83
266
 186
Equity method investments(156) (84)(236) (80)
Other, net31
 (12)48
 (12)
Net cash flows from investing activities(1,223) (1,538)(4,517) (4,354)
 
  
 
  
Cash flows from financing activities: 
  
 
  
Proceeds from BHE senior debt2,176
 
3,166
 
Repayments of BHE junior subordinated debentures
 (200)
Repayments of BHE senior debt and junior subordinated debentures(650) (1,344)
Common stock purchases(90) (19)(107) (19)
Proceeds from subsidiary debt687
 844
2,353
 1,562
Repayments of subsidiary debt(550) (425)(2,297) (834)
Net (repayments of) proceeds from short-term debt(1,873) 140
(2,694) 365
Purchase of redeemable noncontrolling interest(131) 
Other, net(14) (12)(32) (60)
Net cash flows from financing activities336
 328
(392) (330)
 
  
 
  
Effect of exchange rate changes1
 1
(3) 6
 
  
 
  
Net change in cash and cash equivalents and restricted cash and cash equivalents593
 229
119
 456
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period1,283
 1,003
1,283
 1,003
Cash and cash equivalents and restricted cash and cash equivalents at end of period$1,876
 $1,232
$1,402
 $1,459

The accompanying notes are an integral part of these consolidated financial statements.


BERKSHIRE HATHAWAY ENERGY COMPANY AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

(1)
General

Berkshire Hathaway Energy Company ("BHE") is a holding company that owns a highly diversified portfolio of locally managed businesses principally engaged in the energy industry (collectively with its subsidiaries, the "Company") and is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway").

The Company's operations are organized as eight business segments: PacifiCorp, MidAmerican Funding, LLC ("MidAmerican Funding") (which primarily consists of MidAmerican Energy Company ("MidAmerican Energy")), NV Energy, Inc. ("NV Energy") (which primarily consists of Nevada Power Company ("Nevada Power") and Sierra Pacific Power Company ("Sierra Pacific")), Northern Powergrid Holdings Company ("Northern Powergrid") (which primarily consists of Northern Powergrid (Northeast) Limited and Northern Powergrid (Yorkshire) plc), BHE Pipeline Group (which consists of Northern Natural Gas Company ("Northern Natural Gas") and Kern River Gas Transmission Company ("Kern River")), BHE Transmission (which consists of BHE Canada Holdings Corporation ("AltaLink") (which primarily consists of AltaLink, L.P. ("ALP")) and BHE U.S. Transmission, LLC), BHE Renewables (which primarily consists of BHE Renewables, LLC and CalEnergy Philippines) and HomeServices of America, Inc. (collectively with its subsidiaries, "HomeServices"). The Company, through these locally managed and operated businesses, owns four utility companies in the United States serving customers in 11 states, two electricity distribution companies in Great Britain, two interstate natural gas pipeline companies in the United States, an electric transmission business in Canada, interests in electric transmission businesses in the United States, a renewable energy business primarily investing in solar, wind, geothermal and hydroelectric projects, the second largest residential real estate brokerage firm in the United States and one of the largest residential real estate brokerage franchise networks in the United States.

The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of March 31,September 30, 2018 and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in the Company's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)
(2)    New Accounting Pronouncements

In FebruaryAugust 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2018-02,2018-14, which amends FASB Accounting Standards Codification ("ASC") Topic 715, "Compensation - Retirement Benefits." The amendments in this guidance modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendments in this guidance remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures and add disclosure requirements identified as relevant. The updated disclosure requirements make a number of changes to improve the effectiveness of disclosures in the notes to the financial statements. This guidance is effective for annual reporting periods beginning after December 15, 2020, with early adoption permitted, and is required to be adopted retrospectively. The adoption of ASU No. 2018-14 will not have a material impact on the Company's Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.



In February 2018, the FASB issued ASU No. 2018-02, which amends FASB ASC Topic 220, "Income Statement - Reporting Comprehensive Income." The amendments in this guidance require a reclassification from accumulated other comprehensive income to retained earnings for the stranded tax effects that were created from the Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform"). The reclassification is the difference between the historical income tax rates and the enacted rate for the items previously recorded in accumulated other comprehensive income. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted retrospectively to each period in which the effect of the change in the 2017 Tax Reform is recognized. Considering the significant components of the Company's accumulated other comprehensive income relate to (a) unrecognized amounts on retirement benefits of foreign pension plans and (b) unrealized gains on available-for-sale securities, which were reclassified as required by ASU No. 2016-01 that was adopted on January 1, 2018, the adoption of ASU No. 2018-02 willdid not have a material impact on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.



In August 2017, the FASB issued ASU No. 2017-12, which amends FASB ASC Topic 815, "Derivatives and Hedging." The amendments in this guidance update the hedge accounting model to enable entities to better portray the economics of their risk management activities in the financial statements, expands an entity's ability to hedge non-financial and financial risk components and reduces complexity in fair value hedges of interest rate risk. In addition, it eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in fair value of a hedging instrument to be presented in the same income statement line as the hedged item and also eases certain documentation and assessment requirements. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach by means of a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The Company is currently evaluating the impact of adopting this guidance on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.

In February 2016, the FASB issued ASU No. 2016-02, which creates FASB ASC Topic 842, "Leases" and supersedes Topic 840 "Leases." This guidance increases transparency and comparability among entities by recording lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. In JanuaryDuring 2018, the FASB issued several ASUs that clarified the implementation guidance and provided optional transition practical expedients for ASU No. 2016-02 including ASU No. 2018-01 that provides for an optional transition practical expedient allowingallows companies to not have to evaluateforgo evaluating existing land easements if they were not previously accounted for under ASC Topic 840, "Leases.""Leases" and ASU No. 2018-11 that allows companies to apply the new guidance at the adoption date with the cumulative-effect adjustment to the opening balance of retained earnings recognized in the period of adoption. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach. The Company plans to adopt this guidance effective January 1, 2019 and is currently in the process of evaluating the impact on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.

(3)
Business Acquisitions

InThe Company completed various acquisitions totaling $105 million, net of cash acquired, for the nine-month period ended September 30, 2018. The purchase price for each acquisition was allocated to the assets acquired and liabilities assumed, which primarily related to residential real estate brokerage businesses. There were no other material assets acquired or liabilities assumed. Additionally, in April 2018, HomeServices acquired the remaining 33.3% interest in a real estate brokerage franchise business from the noncontrolling interest member at a contractually determined option exercise formulaprice totaling $131 million.

The Company completed various acquisitions totaling $579 million,$1.1 billion, net of cash acquired, for the three-monthnine-month period ended March 31,September 30, 2017. The purchase price for each acquisition was allocated to the assets acquired and liabilities assumed, which primarily related primarily to residential real estate brokerage businesses, development and construction costs for the 110-megawatt Alamo 6 solar-powered generationsolar project and the 50-megawatt Pearl solar project, and the remaining 25% interest in the Silverhawk natural gas-fueled generation facility at Nevada PowerPower. As a result of the various acquisitions, the Company acquired assets of $1.1 billion, assumed liabilities of $476 million and a residential real estate brokerage business. There were no other material assets acquired or liabilities assumed.recognized goodwill of $522 million.




(4)
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
  As of  As of
Depreciable March 31, December 31,Depreciable September 30, December 31,
Life 2018 2017Life 2018 2017
Regulated assets:        
Utility generation, transmission and distribution systems5-80 years $75,068
 $74,660
5-80 years $75,751
 $74,660
Interstate natural gas pipeline assets3-80 years 7,230
 7,176
3-80 years 7,295
 7,176
 82,298
 81,836
 83,046
 81,836
Accumulated depreciation and amortization (24,957) (24,478) (25,566) (24,478)
Regulated assets, net 57,341
 57,358
 57,480
 57,358
  
  
  
  
Nonregulated assets:  
  
  
  
Independent power plants5-30 years 6,034
 6,010
5-30 years 6,551
 6,010
Other assets3-30 years 1,588
 1,489
3-30 years 1,605
 1,489
 7,622
 7,499
 8,156
 7,499
Accumulated depreciation and amortization (1,644) (1,542) (1,773) (1,542)
Nonregulated assets, net 5,978
 5,957
 6,383
 5,957
  
  
  
  
Net operating assets 63,319
 63,315
 63,863
 63,315
Construction work-in-progress 2,735
 2,556
 3,724
 2,556
Property, plant and equipment, net $66,054
 $65,871
 $67,587
 $65,871

Construction work-in-progress includes $2.4$3.2 billion as of March 31,September 30, 2018 and $2.2 billion as of December 31, 2017, related to the construction of regulated assets.



(5)
Investments and Restricted Cash and Cash Equivalents and Investments

Investments and restricted cash and cash equivalents and investments consists of the following (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Investments:      
BYD Company Limited common stock$1,754
 $1,961
$1,616
 $1,961
Rabbi trusts387
 441
398
 441
Other183
 124
186
 124
Total investments2,324
 2,526
2,200
 2,526
 
  
 
  
Equity method investments:      
BHE Renewables tax equity investments1,177
 1,025
1,221
 1,025
Electric Transmission Texas, LLC536
 524
530
 524
Bridger Coal Company129
 137
116
 137
Other143
 148
163
 148
Total equity method investments1,985
 1,834
2,030
 1,834
      
Restricted cash and cash equivalents and investments: 
  
 
  
Quad Cities Station nuclear decommissioning trust funds512
 515
543
 515
Restricted cash and cash equivalents232
 348
385
 348
Total restricted cash and cash equivalents and investments744
 863
928
 863
 
  
 
  
Total investments and restricted cash and cash equivalents and investments$5,053
 $5,223
$5,158
 $5,223
      
Reflected as:      
Current assets$257
 $351
$404
 $351
Noncurrent assets4,796
 4,872
4,754
 4,872
Total investments and restricted cash and cash equivalents and investments$5,053
 $5,223
$5,158
 $5,223

Investments

In January 2016, the FASB issued ASU 2016-01 which amended FASB ASC Subtopic 825-10, "Financial Instruments - Overall." The amendments in this guidance addressed certain aspects of recognition, measurement, presentation and disclosure of financial instruments including a requirement that all investments in equity securities that do not qualify for equity method accounting or result in consolidation of the investee be measured at fair value with changes in fair value recognized in net income. The Company adopted this guidance effective January 1, 2018 with a cumulative-effect increase to retained earnings of $1,085 million and a corresponding decrease to accumulated other comprehensive income (loss) ("AOCI").

The portion of unrealized losses for the three-month period ended March 31, 2018 related to investments still held as of March 31,September 30, 2018 is calculated as follows (in millions):
Realized and unrealized losses on marketable securities recognized during the period$(209)
Less: Net gains recognized during the period on investments sold during the period2
Unrealized losses recognized during the period on investments still held at the reporting date$(211)

 Three-Month Period Nine-Month Period
 Ended September 30, Ended September 30,
 2018 2018
Gains (losses) on marketable securities recognized during the period$260
 $(336)
Less: Net gains recognized during the period on marketable securities sold during the period
 1
Unrealized gains (losses) recognized during the period on marketable securities still held at the reporting date$260
 $(337)



Equity Method Investments

In August 2016, the FASB issued ASU No. 2016-15, which amends FASB ASC Topic 230, "Statement of Cash Flows." The amendments in this guidance address the classification of eight specific cash flow issues within the statement of cash flows with the objective of reducing the existing diversity in practice. The Company adopted this guidance retrospectively effective January 1, 2018 which resulted in the reclassification of certain cash distributions received from equity method investees of $19$26 million previously recognized within investing cash flows to operating cash flows for the three-monthnine-month period ended March 31,September 30, 2017.

Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The Company adopted this guidance January 1, 2018.

Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements and debt service obligations for certain of the Company's nonregulated renewable energy projects. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Cash and cash equivalents$1,644
 $935
$1,016
 $935
Restricted cash and cash equivalents212
 327
358
 327
Investments and restricted cash and cash equivalents and investments20
 21
28
 21
Total cash and cash equivalents and restricted cash and cash equivalents$1,876
 $1,283
$1,402
 $1,283

(6)
Recent Financing Transactions

Long-Term Debt

In July 2018, BHE issued $1.0 billion of its 4.45% Senior Notes due 2049. BHE used the net proceeds to refinance a portion of the Company's short-term indebtedness and for general corporate purposes.

In July 2018, Northern Natural Gas issued $450 million of its 4.30% Senior Bonds due 2049. Northern Natural Gas used the net proceeds to repay at maturity all of its $200 million 5.75% Senior Notes due July 2018 and for general corporate purposes.

In July 2018, PacifiCorp issued $600 million of its 4.125% First Mortgage Bonds due 2049. PacifiCorp used a portion of the net proceeds to repay all of its $500 million 5.65% First Mortgage Bonds due July 2018 and intends to use the remaining net proceeds to fund capital expenditures and for general corporate purposes.

In April 2018, Nevada Power issued $575 million of its 2.75% General and Refunding Mortgage Notes, Series BB, due April 2020. Nevada Power intends to useused a portion of the net proceeds together with available cash, to repay all of Nevada Power'sits $325 million 6.50% General and Refunding Mortgage Notes, Series O, maturing in May 2018. In August 2018, a portionNevada Power used the remaining net proceeds, together with available cash, to repay all of Nevada Power's $500 million 6.50% General and Refunding Mortgage Notes, Series S, maturing in August 2018 and for general corporate purposes.2018.



In February 2018, MidAmerican Energy issued $700 million of its 3.65% First Mortgage Bonds due August 2048. An amount equal to the net proceeds was used to finance capital expenditures, disbursed during the period from February 2, 2017 to October 31, 2017, with respect to investments in MidAmerican Energy's 2,000-megawatt (nameplate capacity) Wind XI project and the repowering of certain of MidAmerican Energy's existing wind facilities, which were previously financed with MidAmerican Energy's general funds.

In January 2018, BHE issued $450 million of its 2.375% Senior Notes due 2021, $400 million of its 2.800%2.80% Senior Notes due 2023, $600 million of its 3.250%3.25% Senior Notes due 2028 and $750 million of its 3.800%3.80% Senior Notes due 2048. The net proceeds were used to refinance a portion of the Company's short-term indebtedness and for general corporate purposes.



Credit Facilities

In April 2018, BHE terminated its $1.0 billion unsecured credit facility expiring May 2018 and amended and restated, with lender consent, its existing $2.0 billion unsecured credit facility expiring June 2020, increasing the lender commitment to $3.5 billion, extending the expiration date to June 2021 and increasing from one to two, the available one-year extension options, subject to lender consent.

In April 2018, PacifiCorp amended and restated its existing $400 million unsecured credit facility expiring June 2020, increasing the lender commitment to $600 million, extending the expiration date to June 2021 and increasing from one to two, the available one-year extension options, subject to lender consent.

In April 2018, PacifiCorp and MidAmerican Energy amended and restated their existing $600 million and $900 million unsecured credit facilities, respectively, each expiring June 2020, extending the expiration dates to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.

In April 2018, Nevada Power and Sierra Pacific amended and restated their existing $400 million and $250 million secured credit facilities, respectively, each expiring June 2020, extending the expiration dates to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.

In April 2018, ALP amended its existing C$750 million secured credit facility expiring December 2019, decreasing the lender commitment to C$500 million effective December 2018 and extending the expiration date to December 2022. ALP also amended its C$75 million secured credit facility expiring December 2019, extending the expiration date to December 2022.

(7)
Income Taxes

Tax Cuts and Jobs Act

2017 Tax Reform impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018, the one-time repatriation tax of foreign earnings and profits and limitations on bonus depreciation for utility property.

In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin ("SAB") 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. The Company has recorded the impacts of the 2017 Tax Reform and believes all the impacts to be complete with the exception of the repatriation tax on foreign earnings and interpretations of the bonus depreciation rules. The Company has determined the amounts recorded and the interpretations relating to these two items to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. The Company believes the estimates for the repatriation tax to be reasonable, however, additional time is required to validate the inputs to the foreign earnings and profits calculation, the basis on which the repatriation tax is determined, and additional guidance is required to determine state income tax implications. The Company also believes its interpretations for bonus depreciation to be reasonable, however, as the guidance is clarified, estimates may change. The accounting is estimated to be completed by December 2018. During the three-month period ended March 31,first half of 2018, the Company reduced the liability estimate by $25$45 million based on additional guidance for certain state income tax implications of the repatriation tax. During the third quarter of 2018, the Company recorded a current tax benefit and deferred tax expense of $37 million following clarified bonus depreciation guidance. As a result of 2017 Tax Reform and the nature of the Company's regulated businesses, the Company reduced the associated deferred income tax liabilities $14 million and increased regulatory liabilities by the same amount. The accounting is estimated towill be completed by December 2018.



Iowa Senate File 2417

In May 2018, Iowa Senate File 2417 was signed into law, which, among other items, reduces the state of Iowa corporate tax rate from 12% to 9.8% and eliminates corporate federal deductibility, both for tax years starting in 2021. GAAP requires the effect on deferred tax assets and liabilities of a change in tax rates be recognized in the period the tax rate change was enacted. As a result of Iowa Senate File 2417, the Company reduced deferred income tax liabilities $61 million and decreased deferred income tax expense by $2 million. As it is probable the change in deferred taxes for the Company's regulated businesses will be passed back to customers through regulatory mechanisms, the Company increased net regulatory liabilities by $59 million. In connection with Iowa Senate File 2417, the Company determined it was more appropriate to present the deferred income tax assets of $609 million associated with the state of Iowa net operating loss carryforward as a long-term income tax receivable from Berkshire Hathaway as a component of BHE's shareholders' equity. As the Company does not currently expect to receive any income tax amounts from Berkshire Hathaway related to the state of Iowa prior to the 2021 effective date, the Company has remeasured the long-term income tax receivable with Berkshire Hathaway at the enactment date and recorded a decrease to the long-term income tax receivable from Berkshire Hathaway of $115 million for the nine-month period ended September 30, 2018.

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows:
 Three-Month Periods
 Ended March 31,
 2018 2017
    
Federal statutory income tax rate21 % 35 %
Income tax credits(45) (16)
State income tax, net of federal income tax benefit(30) (5)
Income tax effect of foreign income(16) (5)
Effects of ratemaking(8) (1)
Equity income1
 1
Other(1)

Effective income tax rate(78)% 9 %

The effective tax rate decreased primarily due to the reduction in the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, lower consolidated state income tax expense, lower United States income taxes on foreign earnings, higher production tax credits recognized of $29 million and the favorable impacts of rate making.
 Three-Month Periods Nine-Month Periods
 Ended September 30, Ended September 30,
 2018 2017 2018 2017
        
Federal statutory income tax rate21 % 35 % 21 % 35 %
Income tax credits(19) (19) (29) (18)
State income tax, net of federal income tax benefit1
 
 (6) (1)
Income tax effect of foreign income
 (3) (3) (4)
Effects of ratemaking(2) 
 (3) 
Equity income
 1
 
 1
Other, net1
 1
 1


Effective income tax rate2 % 15 % (19)% 13 %

Income tax credits relate primarily to production tax credits from wind-powered generating facilities owned by MidAmerican Energy, PacifiCorp and BHE Renewables. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service.

The Company's provision for income tax has been computed on a stand-alone basis. Berkshire Hathaway includes the Company in its United States federal and Iowa state income tax return. The Company's provision for income taxes has been computed on a stand-alone basis,returns and substantially all of its currently payable or receivable federal income taxes aretax is remitted to or received from Berkshire Hathaway. For the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, the Company did not receive or make anyreceived net cash payments for federal income taxes from or to Berkshire Hathaway.Hathaway totaling $450 million and $659 million, respectively. As of September 30, 2018, the Company had a long-term income tax receivable from Berkshire Hathaway of $494 million for Iowa state income tax reflected as a component of BHE's shareholders' equity.



(8)
Employee Benefit Plans

In March 2017, the FASB issued ASU No. 2017-07, which amends FASB ASC Topic 715, "Compensation - Retirement Benefits." The amendments in this guidance require that an employer disaggregate the service cost component from the other components of net benefit cost and report the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the statement of operations separately from the service cost component and outside the subtotal of operating income. Additionally, the guidance only allows the service cost component to be eligible for capitalization when applicable. The Company adopted this guidance January 1, 2018 prospectively for the capitalization of the service cost component in the Consolidated Balance Sheets and retrospectively for the presentation of the service cost component and the other components of net benefit cost in the Consolidated Statements of Operations applying the practical expedient to use the amounts previously disclosed in the Notes to Consolidated Financial Statements as the estimation basis for applying the retrospective presentation requirement. As a result, amounts other than the service cost for pension and other postretirement benefit plans for the three-month periodthree- and nine-month periods ended March 31,September 30, 2017 of $4$16 million and $8 million, respectively, have been reclassified to Other, net in the Consolidated Statements of Operations.



Domestic Operations

Net periodic benefit (credit) cost (credit) for the domestic pension and other postretirement benefit plans included the following components (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Pension:          
Service cost$5
 $6
$5
 $6
 $15
 $18
Interest cost26
 29
26
 29
 78
 87
Expected return on plan assets(41) (40)(41) (40) (123) (120)
Net amortization8
 7
8
 7
 23
 22
Net periodic benefit cost$(2) $2
Net periodic benefit (credit) cost$(2) $2
 $(7) $7
          
Other postretirement:          
Service cost$2
 $2
$1
 $3
 $6
 $7
Interest cost6
 6
7
 7
 19
 21
Expected return on plan assets(10) (10)(9) (9) (31) (30)
Net amortization(3) (3)(3) (3) (9) (10)
Net periodic benefit credit$(5) $(5)$(4) $(2) $(15) $(12)

Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the domestic pension and other postretirement benefit plans are expected to be $39 million and $4$7 million, respectively, during 2018. As of March 31,September 30, 2018, $4$34 million and $6 million of contributions had been made to the domestic pension benefit plans and no contributions had been made to the other postretirement benefit plans.plans, respectively.



Foreign Operations

Net periodic benefit cost for the United Kingdom pension plan included the following components (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Service cost$5
 $6
$5
 $6
 $15
 $19
Interest cost14
 14
14
 15
 42
 44
Expected return on plan assets(27) (24)(25) (25) (78) (74)
Settlement12
 18
 36
 18
Net amortization15
 17
9
 17
 38
 50
Net periodic benefit cost$7
 $13
$15
 $31
 $53
 $57

Amounts other than the service cost for the United Kingdom pension plan are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the United Kingdom pension plan are expected to be £46 million during 2018. As of March 31,September 30, 2018, £1135 million, or $1647 million, of contributions had been made to the United Kingdom pension plan.

(9)



(9)    Fair Value Measurements

The carrying value of the Company's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. The Company has various financial assets and liabilities that are measured at fair value on the Consolidated Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows:

Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.
Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).
Level 3 — Unobservable inputs reflect the Company's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. The Company develops these inputs based on the best information available, including its own data.

The following table presents the Company's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions):
  Input Levels for Fair Value Measurements    
  Level 1 Level 2 Level 3 
Other(1)
 Total
As of March 31, 2018          
Assets:          
Commodity derivatives $1
 $36
 $98
 $(27) $108
Interest rate derivatives 
 17
 16
 
 33
Mortgage loans held for sale 
 440
 
 
 440
Money market mutual funds(2)
 413
 
 
 
 413
Debt securities:          
United States government obligations 183
 
 
 
 183
International government obligations 
 4
 
 
 4
Corporate obligations 
 37
 
 
 37
Municipal obligations 
 1
 
 
 1
Equity securities:          
United States companies 278
 
 
 
 278
International companies 1,760
 
 
 
 1,760
Investment funds 185
 
 
 
 185
  $2,820

$535

$114

$(27) $3,442
Liabilities:  
  
  
  
  
Commodity derivatives $

$(191)
$(17)
$111
 $(97)
Interest rate derivatives 
 (8) 
 
 (8)
  $
 $(199) $(17) $111
 $(105)



  Input Levels for Fair Value Measurements    
  Level 1 Level 2 Level 3 
Other(1)
 Total
As of September 30, 2018          
Assets:          
Commodity derivatives $
 $53
 $99
 $(35) $117
Interest rate derivatives 3
 22
 11
 
 36
Mortgage loans held for sale 
 501
 
 
 501
Money market mutual funds(2)
 716
 
 
 
 716
Debt securities:          
United States government obligations 183
 
 
 
 183
International government obligations 
 4
 
 
 4
Corporate obligations 
 47
 
 
 47
Municipal obligations 
 2
 
 
 2
Equity securities:          
United States companies 300
 
 
 
 300
International companies 1,622
 
 
 
 1,622
Investment funds 187
 
 
 
 187
  $3,011

$629

$110

$(35) $3,715
Liabilities:  
  
  
  
  
Commodity derivatives $(1)
$(168)
$(15)
$110
 $(74)
Interest rate derivatives 
 (5) (1) 
 (6)
  $(1) $(173) $(16) $110
 $(80)
  Input Levels for Fair Value Measurements    
  Level 1 Level 2 Level 3 
Other(1)
 Total
As of December 31, 2017          
Assets:          
Commodity derivatives $1
 $42
 $104
 $(29) $118
Interest rate derivatives 
 15
 9
 
 24
Mortgage loans held for sale 
 465
 
 
 465
Money market mutual funds(2)
 685
 
 
 
 685
Debt securities:          
United States government obligations 176
 
 
 
 176
International government obligations 
 5
 
 
 5
Corporate obligations 
 36
 
 
 36
Municipal obligations 
 2
 
 
 2
Equity securities:          
United States companies 288
 
 
 
 288
International companies 1,968
 
 
 
 1,968
Investment funds 178
 
 
 
 178
  $3,296
 $565
 $113
 $(29) $3,945
Liabilities:          
Commodity derivatives $(3) $(167) $(10) $105
 $(75)
Interest rate derivatives 
 (8) 
 
 (8)
  $(3) $(175) $(10) $105
 $(83)

(1)
Represents netting under master netting arrangements and a net cash collateral receivable of $8475 million and $76 million as of March 31,September 30, 2018 and December 31, 2017, respectively.
(2)
Amounts are included in cash and cash equivalents; other current assets; and noncurrent investments and restricted cash and investments on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.



Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which the Company transacts. When quoted prices for identical contracts are not available, the Company uses forward price curves. Forward price curves represent the Company's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. The Company bases its forward price curves upon market price quotations, when available, or internally developed and commercial models, with internal and external fundamental data inputs. Market price quotations are obtained from independent brokers, exchanges, direct communication with market participants and actual transactions executed by the Company. Market price quotations are generally readily obtainable for the applicable term of the Company's outstanding derivative contracts; therefore, the Company's forward price curves reflect observable market quotes. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to the length of the contract. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, the Company uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The estimated fair value of these derivative contracts is a function of underlying forward commodity prices, interest rates, currency rates, related volatility, counterparty creditworthiness and duration of contracts.

The Company's mortgage loans held for sale are valued based on independent quoted market prices, where available, or the prices of other mortgage whole loans with similar characteristics. As necessary, these prices are adjusted for typical securitization activities, including servicing value, portfolio composition, market conditions and liquidity.

The Company's investments in money market mutual funds and debt and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics.



The following table reconciles the beginning and ending balances of the Company's assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
  Interest  Interest   Interest
Commodity RateCommodity Rate Commodity Rate
Derivatives DerivativesDerivatives Derivatives Derivatives Derivatives
2018:          
Beginning balance$94
 $9
$83
 $17
 $94
 $9
Changes included in earnings
 30
(1) 54
 3
 140
Changes in fair value recognized in OCI(1) 
1
 
 1
 
Changes in fair value recognized in net regulatory assets(9) 
3
 
 (11) 
Purchases1
 
1
 
 2
 
Settlements(4) (23)(3) (61) (5) (139)
Ending balance$81
 $16
$84
 $10
 $84
 $10
2017:          
Beginning balance$60
 $6
$81
 $8
 $60
 $6
Changes included in earnings12
 27
7
 34
 19
 100
Changes in fair value recognized in OCI(2) 
(1) 
 (3) 
Changes in fair value recognized in net regulatory assets1
 
(3) 
 (5) 
Purchases
 (2)
 8
 1
 6
Settlements1
 (22)2
 (37) 14
 (99)
Ending balance$72
 $9
$86
 $13
 $86
 $13



The Company's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of the Company's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of the Company's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of the Company's long-term debt (in millions):
 As of March 31, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$37,498
 $41,579
 $35,193
 $40,522
 As of September 30, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$37,558
 $40,520
 $35,193
 $40,522


(10)
Commitments and Contingencies

Commitments

During the nine-month period ended September 30, 2018, PacifiCorp entered into non-cancelable agreements through 2045 totaling $1.0 billion related to power purchase agreements to meet customer requests for renewable energy, $566 million related to agreements for repowering certain existing wind facilities in Wyoming, Washington and Oregon and $273 million related to fuel supply contracts. The power purchase agreements are from facilities that have not yet achieved commercial operation. To the extent any of these facilities do not achieve commercial operation by contractually agreed upon dates, PacifiCorp has no obligation to the counterparty.

During the nine-month period ended September 30, 2018, MidAmerican Energy entered into firm commitments totaling $563 million for the remainder of 2018 through 2020 related to the construction of wind-powered generating facilities.

Easements

During the three-monthnine-month period ended March 31,September 30, 2018, MidAmerican Energy entered into non-cancelable easements with minimum payments totaling $283$422 million through 2058 for land in Iowa on which some of its wind-powered generating facilities will be located.

Maintenance and Service Contracts

During the nine-month period ended September 30, 2018, MidAmerican Energy entered into non-cancelable maintenance and service contracts related to wind-powered generating facilities with minimum payment commitments totaling $226 million through 2028.

Legal Matters

The Company is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. The Company does not believe that such normal and routine litigation will have a material impact on its consolidated financial results. The Company is also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines, penalties and other costs in substantial amounts and are described below.

Environmental Laws and Regulations

The Company is subject to federal, state, local and foreign laws and regulations regarding air and water quality, renewable portfolio standards, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact the Company's current and future operations. The Company believes it is in material compliance with all applicable laws and regulations.



Hydroelectric Relicensing

PacifiCorp's Klamath hydroelectric system is currently operating under annual licenses with the Federal Energy Regulatory Commission ("FERC"). In February 2010, PacifiCorp, the United States Department of the Interior, the United States Department of Commerce, the state of California, the state of Oregon and various other governmental and non-governmental settlement parties signed the Klamath Hydroelectric Settlement Agreement ("KHSA"). Among other things, the KHSA provided that thatthe United States Department of the Interior would conduct scientific and engineering studies to assess whether removal of the Klamath hydroelectric system's mainstem dams was in the public interest and would advance restoration of the Klamath Basin's salmonid fisheries. If it wasis determined that dam removal should proceed, dam removal would begin no earlier than 2020.

Congress failed to pass legislation needed to implement the original KHSA. OnIn April 6, 2016, the principal parties to the KHSA (PacifiCorp, the states of California and Oregon and the United States Departments of the Interior and Commerce) executed an amendment to the KHSA. Consistent with the terms of the amended KHSA, onin September 23, 2016, PacifiCorp and the Klamath River Renewal Corporation ("KRRC"), a private, independent nonprofit 501(c)(3) organization formed by certain signatories of the amended KSHA, jointly filed an application with the FERC to transfer the license for the four mainstem Klamath River hydroelectric generating facilities from PacifiCorp to the KRRC. Also onin September 23, 2016, the KRRC filed an application with the FERC to surrender the license and decommission the same four facilities. The KRRC's license surrender application included a request for the FERC to refrain from acting on the surrender application until after the transfer of the license to the KRRC is effective. OnIn March 15, 2018, the FERC issued an order splitting the existing license for the Klamath Project into two licenses: the Klamath Project (P‑2082) contains East Side, West Side, Keno and Fall Creek developments; the new Lower Klamath Project (P‑14803) contains J.C. Boyle, Copco No. 1, Copco No. 2 and Iron Gate developments. In the same order, the FERC deferred consideration of the transfer of the license for the Lower Klamath facilities from PacifiCorp to the KRRC until some point in the future. PacifiCorp is currently the licensee for both the Klamath Project and Lower Klamath Project facilities and will retain ownership of the Klamath Project facilities after the approval and transfer of the Lower Klamath Project facilities. OnIn April 16, 2018, PacifiCorp filed a motion to stay the effective date of the license amendment until transfer is approved. In June 2018, the FERC granted PacifiCorp's motion to stay the effective date of the Lower Klamath Project license and all related compliance obligations, pending a Commission order on the license transfer. Meanwhile, the FERC continues to assess the KRRC's capacity to become a project licensee for purposes of dam removal.

Under the amended KHSA, PacifiCorp and its customers are protected from uncapped dam removal costs and liabilities. The KRRC must indemnify PacifiCorp from liabilities associated with dam removal. The amended KHSA also limits PacifiCorp's contribution to facilities removal costs to no more than $200 million, of which up to $184 million would be collected from PacifiCorp's Oregon customers with the remainder to be collected from PacifiCorp's California customers. California voters approved a water bond measure in November 2014 from which the state of California's contribution toward facilities removal costs are being drawn. In accordance with this bond measure, additional funding of up to $250 million for facilities removal costs was included in the California state budget in 2016, with the funding effective for at least five years. If facilities removal costs exceed the combined funding that will be available from PacifiCorp's Oregon and California customers and the state of California, sufficient funds would need to be provided by the KRRC or an entity other than PacifiCorp for removal to proceed.

If certain conditions in the amended KHSA are not satisfied and the license does not transfer to the KRRC, PacifiCorp will resume relicensing with the FERC.

Guarantees

The Company has entered into guarantees as part of the normal course of business and the sale of certain assets. These guarantees are not expected to have a material impact on the Company's consolidated financial results.



(11)
Revenue from Contracts with Customers

Adoption

In May 2014, the FASB issued ASU No. 2014-09, which created FASB ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") and superseded ASC Topic 605, "Revenue Recognition." The guidance replaced industry-specific guidance and established a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue"). The core principle of the guidance is that an entity should recognize revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Following the issuance of ASU No. 2014-09, the FASB issued several ASUs that clarified the implementation guidance for ASU No. 2014-09 but did not change the core principle of the guidance. The Company adopted this guidance for all applicable contracts as of January 1, 2018 under a modified retrospective method and the adoption did not have a cumulative effect impact at the date of initial adoption.

Customer Revenue

The Company recognizes revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. The Company records sales, franchise and excise taxes collected directly from customers and remitted directly to the taxing authorities on a net basis on the Consolidated Statements of Operations.

Energy Products and Services

A majority of the Company's energy revenue is derived from tariff based sales arrangements approved by various regulatory bodies. These tariff based revenues are mainly comprised of energy, transmission, distribution and natural gas and have performance obligations to deliver energy products and services to customers which are satisfied over time as energy is delivered or services are provided. The Company's energy revenue that is nonregulated primarily relates to the Company's renewable energy business. Other revenue consists primarily of revenue recognized in accordance with ASC 815, "Derivatives and Hedging", ASC 840, "Leases" and amounts not considered Customer Revenue within ASC 606.

Revenue recognized is equal to what the Company has the right to invoice as it corresponds directly with the value to the customer of the Company's performance to date and includes billed and unbilled amounts. As of March 31,September 30, 2018 and December 31, 2017, trade receivables, net on the Consolidated Balance Sheets relate substantially to Customer Revenue, including unbilled revenue of $582$624 million and $665 million, respectively. Payments for amounts billed are generally due from the customer within 30 days of billing. Rates charged for energy products and services are established by regulators or contractual arrangements that establish the transaction price as well as the allocation of price amongst the separate performance obligations. When preliminary regulated rates are permitted to be billed prior to final approval by the applicable regulator, certain revenue collected may be subject to refund and a liability for estimated refunds is accrued.



The following table summarizes the Company's energy products and services revenue by regulated energy and nonregulated energy, with further disaggregation of regulated energy by customer class and line of business, including a reconciliation to the Company's reportable segment information included in Note 14 for the three-month period ended March 31, 2018 (in millions):
 For the Three-Month Period Ended September 30, 2018
 PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables 
BHE
and Other
 Total PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables 
BHE and
Other(1)
 Total
Customer Revenue:                                    
Regulated:                                    
Retail Electric $1,096
 $386
 $539
 $
 $
 $
 $
 $
 $2,021
 $1,323
 $647
 $1,002
 $
 $
 $
 $
 $(1) $2,971
Retail Gas 
 246
 40
 
 
 
 
 
 286
 
 83
 13
 
 
 
 
 
 96
Wholesale 22
 93
 11
 
 
 
 
 (1) 125
Wholesale(2)
 (10) 82
 9
 
 
 
 
 (1) 80
Transmission and
distribution
 22
 16
 20
 249
 
 180
 
 
 487
 30
 14
 28
 196
 
 171
 
 
 439
Interstate pipeline 
 
 
 
 374
 
 
 (41) 333
 
 
 
 
 283
 
 
 (25) 258
Other 
 
 
 
 
 
 
 
 
Total Regulated 1,140
 741
 610
 249
 374
 180
 
 (42) 3,252
 1,343
 826
 1,052
 196
 283
 171
 
 (27) 3,844
Nonregulated 
 
 
 11
 
 
 117
 144
 272
 
 2
 
 10
 
 3
 235
 176
 426
Total Customer Revenue 1,140
 741
 610
 260
 374
 180
 117
 102
 3,524
 1,343
 828
 1,052
 206
 283
 174
 235
 149
 4,270
Other revenue 44
 6
 7
 18
 2
 
 37
 41
 155
Other revenue(3)
 26
 4
 7
 27
 (24) 
 85
 24
 149
Total $1,184
 $747
 $617
 $278
 $376
 $180
 $154
 $143
 $3,679
 $1,369
 $832
 $1,059
 $233
 $259
 $174
 $320
 $173
 $4,419
  For the Nine-Month Period Ended September 30, 2018
  PacifiCorp MidAmerican Funding NV Energy Northern Powergrid BHE Pipeline Group BHE Transmission BHE Renewables 
BHE and
Other(1)
 Total
Customer Revenue:                  
Regulated:                  
Retail Electric $3,534
 $1,538
 $2,232
 $
 $
 $
 $
 $(1) $7,303
Retail Gas 
 428
 72
 
 
 
 
 
 500
Wholesale 21
 262
 26
 
 
 
 
 (3) 306
Transmission and
   distribution
 82
 44
 73
 661
 
 525
 
 
 1,385
Interstate pipeline 
 
 
 
 893
 
 
 (91) 802
Other 
 
 1
 
 
 
 
 
 1
Total Regulated 3,637
 2,272
 2,404
 661
 893
 525
 
 (95) 10,297
Nonregulated 
 7
 1
 31
 
 6
 538
 478
 1,061
Total Customer Revenue 3,637
 2,279
 2,405
 692
 893
 531
 538
 383
 11,358
Other revenue(3)
 109
 18
 21
 65
 (22) 
 182
 87
 460
Total $3,746
 $2,297
 $2,426
 $757
 $871
 $531
 $720
 $470
 $11,818


(1)The BHE and Other reportable segment represents amounts related principally to other entities, corporate functions and intersegment eliminations.
(2)Includes net payments to counterparties for the financial settlement of certain non-derivative forward contracts for energy sales at PacifiCorp.
(3)Includes net payments to counterparties for the financial settlement of certain derivative contracts at BHE Pipeline Group.

Real Estate Services

The Company's HomeServices reportable segment consists of separate brokerage, mortgage and franchise businesses. Rates charged for brokerage, mortgage and franchise real estate services are established through contractual arrangements that establish the transaction price and as well as the allocation of the price amongst the separate performance obligations. Other revenue consists primarily of revenue related to the mortgage businesses recognized in accordance with ASC 815, "Derivatives and Hedging", ASC 825, "Financial Instruments" and ASC 860, "Transfers and Servicing."



The full-service residential real estate brokerage business has performance obligations to deliver integrated real estate services including brokerage services, title and closing services, property and casualty insurance, home warranties, relocation services, and other home-related services to customers. All performance obligations related to the full-service residential real estate brokerage business are satisfied in less than one year at the point in time when a real estate transaction is closed or when services are provided. Commission revenue from real estate brokerage transactions and related amounts due to agents are recognized when a real estate transaction is closed. Title and escrow closing fee revenue from real estate transactions and related amounts due to the title insurer are recognized at closing. Payments for amounts billed are generally due from the customer at closing.

The franchise business operates a network that has performance obligations to provide the right to use certain brand names and other related service marks as well as to provide orientation programs, training and consultation services, advertising programs and other services to its franchisees. The performance obligations related to the franchise business are satisfied over time or when the services are provided. Franchise royalty fees are sales-based variable consideration and are based on a percentage of commissions earned by franchisees on real estate sales, which are recognized when the sale closes. Meetings and training revenue, referral fees, late fees, service fees and franchise termination fees are earned when services have been completed. Payments for amounts billed are generally due from the franchisee within 30 days of billing.

The following table summarizes the Company's real estate services revenue by line of business for the three-month period ended March 31, 2018 (in millions):

HomeServices
Three-Month Period Nine-Month Period
Ended September 30, Ended September 30,
HomeServices2018 2018
Customer Revenue:    
Brokerage$685
$1,122
 $2,975
Franchise15
18
 52
Total Customer Revenue700
1,140
 3,027
Other revenue61
78
 225
Total$761
$1,218
 $3,252

Contract Assets and Liabilities

In the event one of the parties to a contract has performed before the other, the Company would recognize a contract asset or contract liability depending on the relationship between the Company's performance and the customer's payment. As of March 31,September 30, 2018 and December 31, 2017, there were no material contract assets or contract liabilities recorded on the Consolidated Balance Sheets. During the three-month periodthree- and nine-month periods ended March 31,September 30, 2018, there was no material revenue recognized that was included in the contract liability balance at the beginning of the period or from performance obligations satisfied in previous periods.

Remaining Performance Obligations

The following table summarizes the Company's aggregate transaction price allocatedrevenue it expects to recognize in future periods related to significant unsatisfied remaining performance obligations that are unsatisfiedfor fixed contracts with expected durations in excess of one year as of March 31,September 30, 2018, relative to contracts with an original expected duration of more than one year and contain fixed consideration, that is expected to be recognized as revenue for the remaining nine months of 2018 and the years ended December 31, 2019 and thereafter by reportable segment (in millions):
Performance obligations expected to be satisfied:  
 2018 2019 and Thereafter TotalLess than 12 months More than 12 months Total
BHE Pipeline Group $471
 $4,352
 $4,823
$835
 $5,879
 $6,714
BHE Transmission 536
 
 536
176
 
 176
Total $1,007
 $4,352
 $5,359
$1,011
 $5,879
 $6,890



(12)
(12)    BHE Shareholders' Equity

Common Stock

In MarchFor the nine-month periods ended September 30, 2018 BHE repurchased from certain family interests of Mr. Walter Scott, Jr. 149,281 shares of its common stock for $90 million. In Februaryand 2017, BHE repurchased from certain family interests of Mr. Walter Scott, Jr. 177,381 shares of its common stock for $107 million and 35,000 shares of its common stock for $19 million.million, respectively.

(13)
Components of Other Comprehensive Income (Loss), Net

The following table shows the change in AOCI attributable to BHE shareholders by each component of OCI, net of applicable income taxestax (in millions):
 Unrecognized Foreign Unrealized Unrealized AOCI Unrecognized Foreign Unrealized Unrealized AOCI
 Amounts on Currency Gains on Gains (Losses) Attributable Amounts on Currency Gains on Gains (Losses) Attributable
 Retirement Translation Marketable on Cash To BHE Retirement Translation Marketable on Cash To BHE
 Benefits Adjustment Securities Flow Hedges Shareholders, Net Benefits Adjustment Securities Flow Hedges Shareholders, Net
                    
Balance, December 31, 2016 $(447) $(1,675) $585
 $26
 $(1,511) $(447) $(1,675) $585
 $26
 $(1,511)
Other comprehensive income (loss) 5
 87
 38
 (4) 126
 16
 535
 542
 (5) 1,088
Balance, March 31, 2017 $(442) $(1,588) $623
 $22
 $(1,385)
Balance, September 30, 2017 $(431) $(1,140) $1,127
 $21
 $(423)
                    
Balance, December 31, 2017 $(383) $(1,129) $1,085
 $29
 $(398) $(383) $(1,129) $1,085
 $29
 $(398)
Adoption of ASU 2016-01 
 
 (1,085) 
 (1,085) 
 
 (1,085) 
 (1,085)
Other comprehensive income (loss) (3) 73
 
 (2) 68
 50
 (236) 
 2
 (184)
Balance, March 31, 2018 $(386) $(1,056) $
 $27
 $(1,415)
Balance, September 30, 2018 $(333) $(1,365) $
 $31
 $(1,667)

For more information regarding the adoption of ASU 2016-01, refer to Note 5.

(14)
(14)    Segment Information

The Company's reportable segments with foreign operations include Northern Powergrid, whose business is principally in the United Kingdom, BHE Transmission, whose business includes operations in Canada, and BHE Renewables, whose business includes operations in the Philippines. Intersegment eliminations and adjustments, including the allocation of goodwill, have been made. Information related to the Company's reportable segments is shown below (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
PacifiCorp$1,184
 $1,281
$1,369
 $1,430
 $3,746
 $3,956
MidAmerican Funding747
 696
832
 815
 2,297
 2,170
NV Energy617
 584
1,059
 1,047
 2,426
 2,384
Northern Powergrid278
 245
233
 221
 757
 685
BHE Pipeline Group376
 315
259
 193
 871
 700
BHE Transmission180
 166
174
 182
 531
 506
BHE Renewables154
 144
320
 283
 720
 647
HomeServices761
 585
1,218
 961
 3,252
 2,502
BHE and Other(1)
143
 150
173
 151
 470
 453
Total operating revenue$4,440
 $4,166
$5,637
 $5,283
 $15,070
 $14,003


Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Depreciation and amortization:          
PacifiCorp$202
 $196
$203
 $200
 $602
 $598
MidAmerican Funding158
 117
133
 112
 499
 370
NV Energy113
 104
114
 105
 341
 315
Northern Powergrid63
 49
62
 55
 189
 156
BHE Pipeline Group42
 30
27
 42
 99
 115
BHE Transmission62
 54
61
 58
 184
 165
BHE Renewables64
 61
68
 63
 198
 187
HomeServices12
 12
14
 16
 37
 38
BHE and Other(1)

 (1)(1) 
 (2) (1)
Total depreciation and amortization$716
 $622
$681
 $651
 $2,147
 $1,943

Operating income:          
PacifiCorp$247
 $339
$386
 $461
 $917
 $1,133
MidAmerican Funding79
 102
278
 284
 444
 517
NV Energy89
 98
307
 393
 540
 683
Northern Powergrid147
 140
102
 106
 360
 346
BHE Pipeline Group226
 208
105
 66
 388
 328
BHE Transmission81
 77
82
 86
 244
 236
BHE Renewables28
 15
176
 157
 308
 256
HomeServices(8) 2
85
 79
 185
 191
BHE and Other(1)
(18) (14)2
 8
 (20) (38)
Total operating income871

967
1,523

1,640
 3,366

3,652
Interest expense(466) (458)(453) (464) (1,380) (1,379)
Capitalized interest12
 10
17
 14
 44
 34
Allowance for equity funds21
 17
30
 24
 75
 59
Interest and dividend income26
 26
27
 32
 85
 85
Realized and unrealized (loss) gain on marketable securities, net(209) 3
Gains (losses) on marketable securities, net260
 3
 (336) 8
Other, net30
 26
19
 (17) 50
 8
Total income before income tax expense and equity income$285

$591
$1,423

$1,232
 $1,904

$2,467
Interest expense:          
PacifiCorp$96
 $95
$96
 $95
 $288
 $285
MidAmerican Funding63
 59
61
 59
 185
 177
NV Energy58
 58
52
 57
 169
 173
Northern Powergrid37
 31
34
 34
 107
 98
BHE Pipeline Group10
 12
11
 11
 31
 33
BHE Transmission43
 41
42
 45
 127
 125
BHE Renewables52
 50
49
 51
 150
 153
HomeServices4
 1
6
 1
 16
 3
BHE and Other(1)
103
 111
102
 111
 307
 332
Total interest expense$466

$458
$453
 $464
 $1,380

$1,379


Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue by country:          
United States$3,978
 $3,747
$5,209
 $4,869
 $13,757
 $12,793
United Kingdom277
 245
232
 221
 754
 685
Canada180
 166
174
 182
 531
 506
Philippines and other5
 8
22
 11
 28
 19
Total operating revenue by country$4,440
 $4,166
$5,637
 $5,283
 $15,070
 $14,003
Income before income tax expense and equity income by country:          
United States$118
 $423
$1,290
 $1,113
 $1,501
 $2,065
United Kingdom112
 102
59
 49
 220
 213
Canada41
 42
43
 47
 125
 127
Philippines and other14
 24
31
 23
 58
 62
Total income before income tax expense and equity income by country$285
 $591
$1,423
 $1,232
 $1,904
 $2,467

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Assets:      
PacifiCorp$22,989
 $23,086
$23,501
 $23,086
MidAmerican Funding18,707
 18,444
19,499
 18,444
NV Energy13,911
 13,903
14,078
 13,903
Northern Powergrid7,897
 7,565
7,527
 7,565
BHE Pipeline Group5,252
 5,134
5,285
 5,134
BHE Transmission8,762
 9,009
8,863
 9,009
BHE Renewables7,790
 7,687
8,590
 7,687
HomeServices2,739
 2,722
2,860
 2,722
BHE and Other(1)
2,865
 2,658
1,659
 2,658
Total assets$90,912
 $90,208
$91,862
 $90,208

(1)The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other entities, corporate functions and intersegment eliminations.

The following table shows the change in the carrying amount of goodwill by reportable segment for the three-monthnine-month period ended March 31,September 30, 2018 (in millions):
        BHE Pipeline Group                BHE Pipeline Group        
  MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices    MidAmerican Funding NV Energy Northern Powergrid BHE Transmission BHE Renewables HomeServices  
PacifiCorp TotalBHE Pipeline GroupPacifiCorp TotalBHE Pipeline Group
                                
December 31, 2017$1,129
 $2,102
 $2,369
 $991
 $73
 $1,571
 $95
 $1,348
 $1,129
 $2,102
 $2,369
 $991
 $73
 $1,571
 $95
 $1,348
 
Acquisitions

 

 
 

 

 

 

 70
 70
Foreign currency translation
 
 
 26
 
 (39) 
 
 (13)

 

 
 (24) 

 (41) 

 

 (65)
March 31, 2018$1,129
 $2,102
 $2,369
 $1,017
 $73
 $1,532
 $95
 $1,348
 $9,665
September 30, 2018$1,129
 $2,102
 $2,369
 $967
 $73
 $1,530
 $95
 $1,418
 $9,683


Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations

The following is management's discussion and analysis of certain significant factors that have affected the consolidated financial condition and results of operations of the Company during the periods included herein. Explanations include management's best estimate of the impact of weather, customer growth and other factors. This discussion should be read in conjunction with the Company's historical unaudited Consolidated Financial Statements and Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q. The Company's actual results in the future could differ significantly from the historical results.

The Company's operations are organized as eight business segments: PacifiCorp, MidAmerican Funding (which primarily consists of MidAmerican Energy), NV Energy (which primarily consists of Nevada Power and Sierra Pacific), Northern Powergrid (which primarily consists of Northern Powergrid (Northeast) Limited and Northern Powergrid (Yorkshire) plc), BHE Pipeline Group (which consists of Northern Natural Gas and Kern River), BHE Transmission (which consists of AltaLink and BHE U.S. Transmission), BHE Renewables and HomeServices. BHE, through these locally managed and operated businesses, owns four utility companies in the United States serving customers in 11 states, two electricity distribution companies in Great Britain, two interstate natural gas pipeline companies in the United States, an electric transmission business in Canada, interests in electric transmission businesses in the United States, a renewable energy business primarily investing in solar, wind, geothermal and hydroelectric projects, the second largest residential real estate brokerage firm in the United States and one of the largest residential real estate brokerage franchise networks in the United States. The reportable segment financial information includes all necessary adjustments and eliminations needed to conform to the Company's significant accounting policies. The differences between the reportable segment amounts and the consolidated amounts, described as BHE and Other, relate principally to other entities, corporate functions and intersegment eliminations.

Results of Operations for the Third Quarter and First QuarterNine Months of 2018 and 2017

Overview

Net income for the Company's reportable segments is summarized as follows (in millions):
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
Net income attributable to BHE shareholders:                      
PacifiCorp$148
 $179
 $(31) (17)%$270
 $263
 $7
 3 % $603
 $618
 $(15) (2)%
MidAmerican Funding103
 102
 1
 1
479
 383
 96
 25
 685
 616
 69
 11
NV Energy33
 33
 
 
201
 223
 (22) (10) 311
 347
 (36) (10)
Northern Powergrid84
 82
 2
 2
44
 39
 5
 13
 169
 174
 (5) (3)
BHE Pipeline Group167
 121
 46
 38
79
 35
 44
 * 286
 183
 103
 56
BHE Transmission56
 60
 (4) (7)55
 58
 (3) (5) 164
 171
 (7) (4)
BHE Renewables54
 34
 20
 59
139
 89
 50
 56
 304
 194
 110
 57
HomeServices(10) 
 (10) (100)60
 45
 15
 33
 127
 107
 20
 19
BHE and Other(122) (55) (67) *74
 (67) 141
 * (363) (212) (151) (71)
Total net income attributable to BHE shareholders$513
 $556
 $(43) (8)$1,401
 $1,068
 $333
 31
 $2,286
 $2,198
 $88
 4

*    Not meaningful



Net income attributable to BHE shareholders decreased $43increased $333 million for the firstthird quarter of 2018 compared to 2017 due to an after-tax unrealized lossgain on the investment in BYD Company Limited in 2018 totaling $149$182 million and the following factors:
PacifiCorp's net income increased $7 million primarily due to a decrease in income tax expense of $78 million from a lower federal tax rate due to the impact of the Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform"), partially offset by lower utility margin of $61 million and higher operations and maintenance expense of $12 million. Utility margin decreased $31due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $53 million, higher natural gas costs, higher purchased electricity costs and lower wholesale revenue, partially offset by higher retail customer volumes and lower coal costs. Retail customer volumes increased 1.8% due to higher customer usage, primarily from industrial, commercial and residential customers in Utah, and an increase in the average number of customers across the service territory, offset by impacts of weather across the service territory.
MidAmerican Funding's net income increased $96 million primarily due to a higher income tax benefit of $95 million from a $53 million increase in recognized production tax credits and a lower federal tax rate due to the impact of 2017 Tax Reform, higher electric utility margin of $10 million and higher allowances for borrowed and equity funds of $7 million, partially offset by higher depreciation and amortization of $22 million from additional plant in-service and increases for Iowa revenue sharing. Electric utility margin increased due to higher retail customer volumes of 5.9%, primarily from industrial growth and the favorable impact of weather, higher electric wholesale revenue and higher recoveries through bill riders, partially offset by lower average retail rates of $33 million, predominantly from the impact of a lower federal tax rate due to 2017 Tax Reform, and higher generation and purchased power costs.
NV Energy's net income decreased $22 million primarily due to an increase in operations and maintenance expense of $60 million, primarily due to earnings sharing of $36 million established in 2018 as part of the Nevada Power 2017 regulatory rate review and higher political activity expenses, a decrease in electric utility margin of $17 million and an increase in depreciation and amortization of $9 million as a result of various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review, partially offset by a decrease in income tax expense of $55 million primarily from a lower federal tax rate due to the impact of 2017 Tax Reform. Electric utility margin decreased due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $30 million, partially offset by higher retail customer volumes of 2.9%, mainly from the favorable impact of weather.
Northern Powergrid's net income increased $5 million primarily due to lower overall pension expense of $4 million, which includes pension settlement losses recognized in 2017 and 2018, and higher smart meter net income of $2 million reflecting growth in that business.
BHE Pipeline Group's net income increased $44 million primarily due to higher transportation revenue of $58 million at Northern Natural Gas and Kern River from higher volumes and rates due to unique market opportunities, partially offset by $30 million of higher operations and maintenance expense, primarily due to increased pipeline integrity projects at Northern Natural Gas.
BHE Transmission's net income decreased $3 million primarily due to lower earnings at AltaLink from the release of contingent liabilities in 2017 and a stronger United States dollar, partially offset by higher non-regulated revenue.
BHE Renewables' net income increased $50 million primarily due to $35 million of increased revenue from overall higher generation and pricing at existing projects, $15 million of 2017 make-whole payments associated with early debt retirements and $8 million of net income from additional wind and solar capacity placed in-service, partially offset by an unfavorable derivative valuation movement of $8 million and unfavorable earnings of $3 million from tax equity investments, largely due to higher equity losses from certain tax equity investments due to unfavorable operating results, partially offset by earnings from additional tax equity investments.
HomeServices' net income increased $15 million primarily due to net income of $19 million contributed from acquired businesses and a decrease in income tax expense from a lower federal tax rate due to the impact of 2017 Tax Reform, partially offset by lower margin and higher operating expenses at existing businesses and higher interest expense from increased borrowings related to acquisitions.
BHE and Other had net income of $74 million for the third quarter of 2018 compared to a net loss of $67 million for the third quarter of 2017 primarily due to the aforementioned after-tax unrealized gain on the investment in BYD Company Limited totaling $182 million, partially offset by lower federal income tax credits recognized on a consolidated basis, higher other operating costs and a lower income tax benefit of $12 million from a lower federal tax rate due to the impact of 2017 Tax Reform.



Net income attributable to BHE shareholders increased $88 million for the first nine months of 2018 compared to 2017 due to the following factors, partially offset by an after-tax unrealized loss on the investment in BYD Company Limited in 2018 totaling $250 million:
PacifiCorp's net income decreased $15 million primarily due to lower utility marginsmargin of $89$205 million and higher depreciationoperations and amortizationmaintenance expenses of $7$6 million, partially offset by lowera decrease in income tax expense of $60$194 million from a lower federal tax ratesrate due to the impact of 2017 Tax Reform. Utility marginsmargin decreased due to lower average retail rates, including $53 millionthe impact of refund accruals relateda lower federal tax rate due to 2017 Tax Reform of $159 million, lower retail customer volumes, of 3.5%, mainly from the unfavorable impact of weather and lower industrial usage,higher purchased electricity costs and higher purchased electricitynatural gas costs, partially offset by lower coal costscosts. Retail customer volumes decreased 0.9% due to the unfavorable impact of weather across the service territory and lower customer usage, primarily from industrial customers in Oregon and Utah, partially offset by higher wholesale revenue.commercial and irrigation customer usage in Utah, and an increase in the average number of customers across the service territory.
MidAmerican Funding's net income increased $1$69 million primarily due to higher electric utility margins of $30 million, higher natural gas utility margins of $6 million and a higher income tax benefit of $23$124 million from a lower federal tax ratesrate due to the impact of 2017 Tax Reform and highera $44 million increase in recognized production tax credits, substantiallyhigher electric utility margin of $84 million, higher allowances for borrowed and equity funds of $19 million and higher natural gas utility margin of $12 million, partially offset by higher depreciation and amortization of $41$130 million from changes in accrualsincreases for Iowa regulatory arrangementsrevenue sharing and additional plant in-service, higher wind-powered generation maintenance of $6$17 million, higher fossil-fueled generation maintenance of $12 million and increases in other operatingoperations and maintenance expenses. Electric utility marginsmargin increased due to higher recoveries through bill riders, higher retail customer volumes of 6.9% from industrial growth and the favorable impact of weather and higher transmissionelectric wholesale revenue, partially offset by $22lower average retail rates of $86 million, predominantly from the impact of refund accruals relateda lower federal tax rate due to 2017 Tax Reform, and higher coal-fueled generation and purchased power costs. Natural gas utility margins increased due to higher retail sales volumes of 20.9% from colder temperatures, partially offset by $7 million of refund accruals related to 2017 Tax Reform.
NV Energy's net income was unchanged as lower income tax expense of $11decreased $36 million primarily due to 2017 Tax Reform, was offset by higher depreciationan increase in operations and amortizationmaintenance expense of $9$77 million, primarily due to earnings sharing of $42 million established in 2018 as a resultpart of the Nevada Power 2017 regulatory rate review.review and higher political activity expenses, a decrease in electric utility margin of $38 million and an increase in depreciation and amortization of $26 million as a result of various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review, partially offset by a decrease in income tax expense of $99 million primarily from a lower federal tax rate due to the impact of 2017 Tax Reform. Electric utility margin decreased due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $52 million, partially offset by higher retail customer volumes of 1.1%, mainly due to the favorable impact of weather.
Northern Powergrid's net income increased $2decreased $5 million mainlyprimarily due to $22 million of higher distribution-related operating and depreciation expenses and higher pension expense of $14 million, largely resulting from pension settlement losses recognized in 2018 due to higher lump sum payments, partially offset by the weaker United States dollar of $9$11 million, higher distribution revenue of $10 million and higher smart meter net income of $3 million reflecting growth in that business. Distribution revenue increased mainly due to higher tariff rates, partially offset by lower distribution revenue of $3 million and higher depreciation from the distribution business of $3 million. Distribution revenue decreased mainly due to lower tariff rates and unfavorable movements in regulatory provisions, partially offset by higher units distributed.provisions.
BHE Pipeline Group’sGroup's net income increased $46$103 million primarily due to lowerhigher transportation revenue of $102 million at Northern Natural Gas and Kern River from higher volumes and rates due to unique market opportunities and colder temperatures and a decrease in income tax expense of $30 million from a lower federal tax rate due to the impact of 2017 Tax Reform, and higher transportation revenues from colder temperatures and other market opportunities, partially offset by a reduction in expenses$49 million of higher operations and regulatory liabilities in 2017 relatedmaintenance expense, primarily due to the impact of an alternative rate structure approved by the FERCincreased pipeline integrity projects at Kern River and higher other operating expenses.Northern Natural Gas.
BHE Transmission's net income decreased $4$7 million primarily due to lower earnings at BHE U.S. Transmission from lower equity earnings at Electric Transmission Texas, LLC due to the impacts of a regulatory rate order in March 2017.
BHE Renewables' net income increased $110 million primarily due to $59 million of increased revenue from overall higher generation and pricing at existing projects, $20 million mainly due toof net income from additional wind and solar capacity placed in-service, favorable earnings of $16 million from tax equity investments, reaching commercial operation,largely due to earnings from additional tax equity investments, partially offset by higher solar generation,equity losses from certain tax equity investments due to unfavorable operating results, $15 million of make-whole premiums paid in 2017 due to early debt retirements and a settlement of $7 million received in 2018 related to transformer issues in 2016, and commitment fee income from new tax equity investments.partially offset by an unfavorable derivative valuation movement of $13 million.
HomeServices' net income decreased $10increased $20 million primarily due to net income of $44 million contributed from acquired businesses and a decrease in income tax expense from a lower brokerage segment earnings fromfederal tax rate due to the impact of 2017 Tax Reform, partially offset by lower margin and higher operating expenses partially offset by higher net revenues,at existing businesses and higher interest expense.expense from increased borrowings related to acquisitions.



BHE and Other net loss increased $67$151 million primarily due to the aforementioned after-tax unrealized loss on the investment in BYD Company Limited totaling $149$250 million and a lower income tax benefit of $16$41 million from a lower federal tax rate due to the impact of 2017 Tax Reform, and higher other operating costs, partially offset by lower consolidated state income tax expense, including a reduction to the state provision for the repatriation tax of $45 million, lower United States income taxestax on foreign earnings and higher federal income tax credits recognized on a consolidated basis.



Reportable Segment Results

Operating revenue and operating income for the Company's reportable segments are summarized as follows (in millions):
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
Operating revenue:                      
PacifiCorp$1,184
 $1,281
 $(97) (8)%$1,369
 $1,430
 $(61) (4)% $3,746
 $3,956
 $(210) (5)%
MidAmerican Funding747
 696
 51
 7
832
 815
 17
 2
 2,297
 2,170
 127
 6
NV Energy617
 584
 33
 6
1,059
 1,047
 12
 1
 2,426
 2,384
 42
 2
Northern Powergrid278
 245
 33
 13
233
 221
 12
 5
 757
 685
 72
 11
BHE Pipeline Group376
 315
 61
 19
259
 193
 66
 34
 871
 700
 171
 24
BHE Transmission180
 166
 14
 8
174
 182
 (8) (4) 531
 506
 25
 5
BHE Renewables154
 144
 10
 7
320
 283
 37
 13
 720
 647
 73
 11
HomeServices761
 585
 176
 30
1,218
 961
 257
 27
 3,252
 2,502
 750
 30
BHE and Other143
 150
 (7) (5)173
 151
 22
 15
 470
 453
 17
 4
Total operating revenue$4,440
 $4,166
 $274
 7
$5,637
 $5,283
 $354
 7
 $15,070
 $14,003
 $1,067
 8
 
Operating income:       
PacifiCorp$247
 $339
 $(92) (27)%
MidAmerican Funding79
 102
 (23) (23)
NV Energy89
 98
 (9) (9)
Northern Powergrid147
 140
 7
 5
BHE Pipeline Group226
 208
 18
 9
BHE Transmission81
 77
 4
 5
BHE Renewables28
 15
 13
 87
HomeServices(8) 2
 (10) *
BHE and Other(18) (14) (4) (29)
Total operating income$871
 $967
 $(96) (10)

*    Not meaningful
Operating income:               
PacifiCorp$386
 $461
 $(75) (16)% $917
 $1,133
 $(216) (19)%
MidAmerican Funding278
 284
 (6) (2) 444
 517
 (73) (14)
NV Energy307
 393
 (86) (22) 540
 683
 (143) (21)
Northern Powergrid102
 106
 (4) (4) 360
 346
 14
 4
BHE Pipeline Group105
 66
 39
 59
 388
 328
 60
 18
BHE Transmission82
 86
 (4) (5) 244
 236
 8
 3
BHE Renewables176
 157
 19
 12
 308
 256
 52
 20
HomeServices85
 79
 6
 8 185
 191
 (6) (3)
BHE and Other2
 8
 (6) (75) (20) (38) 18
 47
Total operating income$1,523
 $1,640
 $(117) (7) $3,366
 $3,652
 $(286) (8)

PacifiCorp

Operating revenue decreased $97$61 million for the firstthird quarter of 2018 compared to 2017 due to lower retail revenue of $111$40 million and lower wholesale and other revenue of $21 million. Retail revenue decreased $59 million due to lower average rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $53 million, partially offset by $19 million from higher volumes. Retail customer volumes increased 1.8% due to higher usage, primarily from industrial, commercial and residential customers in Utah, and an increase in the average number of customers across the service territory, offset by impacts of weather across the service territory. Wholesale and other revenue decreased primarily due to lower wholesale market prices, partially offset by higher wholesale sales volumes.

Operating income decreased $75 million for the third quarter of 2018 compared to 2017 primarily due to lower utility margin of $61 million and higher operations and maintenance expense of $12 million. Utility margin decreased due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $53 million, higher natural gas costs from higher generation volumes, higher purchased electricity costs from higher prices and volumes and lower wholesale revenue, partially offset by higher net deferrals of incurred net power costs in accordance with established adjustment mechanisms, higher retail customer volumes and lower coal costs largely from favorable prices.



Operating revenue decreased $210 million for the first nine months of 2018 compared to 2017 due to lower retail revenue of $218 million, partially offset by higher wholesale and other revenue of $14$8 million. Retail revenue decreased $185 million due to lower average rates, including the impact of $71 million, primarilya lower federal tax rate due to refund accruals of $53 million related to 2017 Tax Reform of $159 million, and $33 million from lower customer volumes of $40 million.volumes. Retail customer volumes decreased 3.5%0.9% due to the impactsunfavorable impact of weather on residentialacross the service territory and commerciallower usage, primarily from industrial customers primarily in Oregon Washington, and Utah, lower industrialpartially offset by higher commercial and irrigation usage primarily in Utah and Oregon and lower residential usage primarily in Washington, Oregon, and Wyoming, partially offset by an increase in the average number of commercial and residential customers in Utah and Oregon and higher commercial usage in Utah.across the service territory. Wholesale and other revenue increased due to higher wholesale sales volumes, partially offset by lower wholesale market prices.other revenue.

Operating income decreased $92$216 million for the first quarternine months of 2018 compared to 2017 mainlyprimarily due to lower utility marginsmargin of $89$205 million and higher depreciationoperations and amortizationmaintenance expenses of $7$6 million. Utility marginsmargin decreased due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $159 million, lower retail customer volumes, and higher purchased electricity costs from higher prices and volumes and higher natural gas costs from higher generation volumes offset by lower prices, partially offset by higher net deferrals of incurred net power costs and lower coal costs from lower generation volumes and prices and higher wholesale revenue.


prices.

MidAmerican Funding

Operating revenue increased $51$17 million for the firstthird quarter of 2018 compared to 2017 primarily due to higher electric operating revenue of $36 million and higher natural gas operating revenue of $13$20 million. Electric operating revenue increased due to higher retail revenue of $32 million and higher wholesale and other revenue of $4$18 million and higher retail revenue of $2 million. Electric wholesale and other revenue increased primarily due to higher transmission revenue.an increase in wholesale volumes of $17 million. Electric retail revenue increased $33$29 million from industrial growth and higher customer usage, $4 million from higher recoveries through bill riders (substantially offset in cost of fuel and energy, operations and maintenance expense and income tax expense) and $2 million from the impact of weather in 2018, partially offset by lower average rates of $33 million, predominantly from the impact of a lower federal tax rate due to 2017 Tax Reform. Electric retail customer volumes increased 5.9% primarily from industrial growth and the favorable impact of weather.

Operating income decreased $6 million for the third quarter of 2018 compared to 2017 primarily due to higher depreciation and amortization of $22 million and higher wind-powered generation maintenance of $6 million, partially offset by higher electric utility margin of $10 million, net of a decrease in electric demand-side management program revenue of $2 million (offset in operations and maintenance expense), higher natural gas utility margin of $4 million and decreases in other operations and maintenance expenses. The increase in depreciation and amortization reflects $18 million related to additional wind generation and other plant placed in-service and $4 million of Iowa revenue sharing. Electric utility margin was higher due to higher retail customer volumes, higher wholesale revenue and higher recoveries through bill riders, partially offset by lower average retail rates, higher generation and purchased power costs and lower transmission revenue. Natural gas utility margin increased due to higher retail sales volumes, partially offset by lower average rates from the impact of a lower federal tax rate due to 2017 Tax Reform.

Operating revenue increased $127 million for the first nine months of 2018 compared to 2017 primarily due to higher electric operating revenue of $108 million and higher natural gas operating revenue of $20 million. Electric operating revenue increased due to higher retail revenue of $96 million and higher wholesale and other revenue of $12 million. Electric retail revenue increased $91 million from higher recoveries through bill riders (substantially offset in cost of fuel and energy, operations and maintenance expense and income tax expense), $11$58 million from higher customer usage, including higher industrial sales volumes, and $10$33 million from the impact of colder temperaturesweather in 2018, partially offset by refund accrualslower average rates of $22$86 million relatedpredominantly from the impact of a lower federal tax rate due to 2017 Tax Reform. Electric retail customer volumes increased 6.9% from industrial growth and the favorable impact of weather. Electric wholesale revenue increased due to higher average per-unit prices of $7 million and a 0.2% growth in sales volumes. Natural gas operating revenue increased due to 20.9%22.3% higher retail sales volumes from colder temperaturesthe impact of weather in 2018 and industrial growth, partially offset by 11.3% lower wholesale sales volumes, a lower average per-unit price of $13$27 million (offset in cost of sales)gas purchased for resale and refund accrualsother) and other usage and rate factors, including the impact of $7 million relateda lower federal tax rate due to 2017 Tax Reform.



Operating income decreased $23$73 million for the first quarternine months of 2018 compared to 2017 primarily due to higher depreciation and amortization of $41$130 million, higher wind-powered generation maintenance of $6$17 million, higher fossil-fueled generation maintenance of $12 million and increases in other operatingoperations and maintenance expenses, partially offset by higher electric utility marginsmargin of $30$84 million, including the impact of an increase in electric DSMdemand-side management program revenue of $7$10 million (offset in operatingoperations and maintenance expense), and higher natural gas utility marginsmargin of $6$12 million. The increase in depreciation and amortization reflects higher accruals of $27 millionincreases for Iowa regulatory arrangementsrevenue sharing of $83 million and $14$47 million related to additional wind generation and other plant placed in-service. Electric utility margins were highermargin increased due to higher recoveries through bill riders, higher retail customer volumes and higher transmissionwholesale revenue, partially offset by refund accruals related to 2017 Tax Reformlower average retail rates and higher coalgeneration and purchased power costs. Natural gas utility margins were highermargin increased due to higher retail sales volumes from colder temperatures, partially offset by refund accrual relatedlower average rates partially from the impact of a lower federal tax rate due to 2017 Tax Reform.

NV Energy

Operating revenue increased $33$12 million for the third quarter of 2018 compared to 2017 due to higher electric operating revenue of $12 million. Electric operating revenue increased due to higher electric retail revenue of $6 million and higher wholesale and other revenue of $6 million. Electric retail revenue increased primarily due to higher energy rates (offset in cost of fuel and energy) of $26 million, higher customer volumes of $18 million, primarily due to the impacts of weather, and customer growth of $6 million, partially offset by a decrease from the impact of a lower federal tax rate due to 2017 Tax Reform of $30 million and lower rates from the Nevada Power 2017 regulatory rate review of $16 million. Electric retail customer volumes, including distribution only service customers, increased 4.7% compared to 2017.

Operating income decreased $86 million for the third quarter of 2018 compared to 2017 due to an increase in operations and maintenance expense of $60 million, primarily due to earnings sharing of $36 million established in 2018 as part of the Nevada Power 2017 regulatory rate review and higher political activity expenses, a decrease in electric utility margin of $17 million and higher depreciation and amortization of $9 million as a result of various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review. Electric utility margin decreased as higher energy costs of $29 million were offset by higher electric operating revenue of $12 million. Energy costs increased due to higher purchased power costs of $29 million.

Operating revenue increased $42 million for the first quarternine months of 2018 compared to 2017 primarily due to higher electric operating revenue of $25$34 million and higher natural gas operating revenue of $7$8 million. Electric operating revenue increased due to higher electric retail revenue of $28$38 million, partially offset by lower wholesale and transmissionother revenue of $3$4 million. Electric retail revenue increased primarily due to $35 million from higher rates from energy costsrates (offset in cost of sales)fuel and residentialenergy) of $82 million, higher customer growth totaling $3volumes of $20 million, partially offset by $8 million of lower residential volumes primarily due to the impacts of weather.weather, and customer growth of $7 million, partially offset by a decrease from the impact of a lower federal tax rate due to 2017 Tax Reform of $52 million and lower rates from the Nevada Power 2017 regulatory rate review of $23 million. Electric retail customer volumes, including distribution only service customers, increased 0.4%2.7% compared to 2017. Natural gas operating revenue increased $8 million due to a higher average per-unit price (offset in cost of sales),natural gas purchased for resale) of $10 million, partially offset by 2.7% lower retail sales volumes.

Operating income decreased $9$143 million for the first quarternine months of 2018 compared to 2017 due to an increase in operations and maintenance expense of $77 million, primarily due to earnings sharing of $42 million established in 2018 as part of the Nevada Power 2017 regulatory rate review and higher political activity expenses, a decrease in electric utility margin of $38 million and higher depreciation and amortization of $9$26 million as a result of various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review. Electric utility margins were relatively flatmargin decreased as higher energy costs of $72 million were offset by higher electric operating revenue.revenue of $34 million. Energy costs increased due to lowerhigher net deferred power costs of $53$103 million and higher purchased power costs of $21 million, partially offset by a lower average cost of fuel for generation of $31$53 million.

Northern Powergrid

Operating revenue increased $33$12 million for the firstthird quarter of 2018 compared to 2017 due to the weaker United States dollar of $30 million and higher smart meter revenue of $6$8 million partially offset by lowerfrom additional smart meter assets placed in-service and higher distribution revenue of $3 million. Distribution revenue decreased$6 million mainly due to lowerhigher tariff rates of $5 million and unfavorable movements in regulatory provisions of $3 million, partially offset by higher units distributed of $5 million.rates. Operating income increased $7decreased $4 million for the firstthird quarter of 2018 compared to 2017 primarily due to higher distribution-related operations and maintenance expense and higher depreciation expense related to additional smart meter and distribution assets placed in-service, partially offset by the increase in operating revenue.



Operating revenue increased $72 million for the first nine months of 2018 compared to 2017 primarily due to the weaker United States dollar of $16$45 million, higher smart meter revenue of $21 million from additional smart meter assets placed in-service and higher distribution revenue of $11 million. Distribution revenue increased mainly due to higher tariff rates of $17 million, partially offset by unfavorable movements in regulatory provisions of $5 million. Operating income increased $14 million for the first nine months of 2018 compared to 2017 primarily due to the increase in operating revenue and the weaker United States dollar of $24 million, partially offset by higher distribution-related operating expensesoperations and maintenance expense and higher depreciation expense related to additional smart meter and the lower distribution revenue.assets placed in-service.

BHE Pipeline Group

Operating revenue increased $61$66 million for the firstthird quarter of 2018 compared to 2017 due to higher transportation revenues of $36$58 million at Northern Natural Gas and Kern River from higher volumes and rates due to unique market opportunities and higher gas sales of $24$10 million related to system balancing activities (largely offset in cost of sales). at Northern Natural Gas. Operating income increased $18$39 million for the firstthird quarter of 2018 compared to 2017 primarily due to the higherincrease in transportation revenue and lower depreciation expense at Kern River, partially offset by anhigher operations and maintenance expense, primarily due to increased pipeline integrity projects at Northern Natural Gas.

Operating revenue increased $171 million for the first nine months of 2018 compared to 2017 due to higher transportation revenues of $102 million at Northern Natural Gas and Kern River from higher volumes and rates due to unique market opportunities and colder temperatures and higher gas sales of $70 million related to system balancing activities (largely offset in cost of sales) at Northern Natural Gas. Operating income increased $60 million for the first nine months of 2018 compared to 2017 primarily due to the increase in operating expenses, which included a reduction in expensestransportation revenue and regulatory liabilities in 2017 related to the impact of an alternative rate structure approved by the FERClower depreciation expense at Kern River, partially offset by higher operations and higher other operating expenses.


maintenance expense, primarily due to increased pipeline integrity projects at Northern Natural Gas.

BHE Transmission

Operating revenue increased $14decreased $8 million for the firstthird quarter of 2018 compared to 2017 largelyprimarily due to $9 millionlower operating revenue at AltaLink from a stronger United States dollar and the release of contingent liabilities in 2017, partially offset by additional assets placed in-service and recovery of higher costs and the weaker United States dollar of $8 million.non-regulated revenue. Operating income increaseddecreased $4 million for the firstthird quarter of 2018 compared to 2017 primarily due to the lower operating revenue, partially offset by lower non-regulated operating costs at AltaLink.

Operating revenue increased $25 million for the first nine months of 2018 compared to 2017 primarily due to higher operating revenue at AltaLink from a weaker United States dollar.dollar, additional assets placed in-service and higher non-regulated revenue, partially offset by the release of contingent liabilities in 2017. Operating income increased $8 million for the first nine months of 2018 compared to 2017 primarily due to the higher operating revenue from additional assets placed in-service.

BHE Renewables

Operating revenue increased $10$37 million for the firstthird quarter of 2018 compared to 2017 due to overall higher geothermal revenuesgeneration and favorable pricing of $8$35 million due to higher pricingat existing projects and timing of outages,$10 million from additional solar and wind capacity placed in-service, of $6 million and higher solar generation of $6 million due to a scheduled maintenance outage in 2017, partially offset by an unfavorable change in thederivative valuation movement of a power purchase agreement derivative of $7 million and lower variable energy fees at the Casecnan project of $4 million due to lower rainfall.$8 million. Operating income increased $13$19 million for the firstthird quarter of 2018 compared to 2017 primarily due to the increase in operating revenue, and lower operating expenses of $7 million, mainly due to the timing of overhaul costs at certain geothermal facilities, partially offset by higher operations and maintenance expense of $14 million and higher depreciation expense of $6 million, primarily related to additional solar and wind capacity placed in-service.

Operating revenue increased $73 million for the first nine months of 2018 compared to 2017 due to overall higher generation and pricing of $59 million at existing projects and $27 million from additional wind and solar capacity placed in-service, partially offset by an unfavorable derivative valuation movement of $13 million. Operating income increased $52 million for the first nine months of 2018 compared to 2017 due to the increase in operating revenue and a decrease in property and other taxes of $4 million due to a property tax refund received in 2018, partially offset by higher operations and maintenance expense of $14 million and higher depreciation expense of $11 million, primarily related to the additional solar and wind capacity placed in-service.

HomeServices

Operating revenue increased $176$257 million for the firstthird quarter of 2018 compared to 2017 due to an increase from acquired businesses totaling $179of $273 million. Operating income increased $6 million partiallyfor the third quarter of 2018 compared to 2017 primarily due to higher earnings from acquired businesses of $21 million, offset by lower mortgage revenuebrokerage segment earnings at existing businesses of $3$10 million, mainly due to lower margin and higher operating expenses.



Operating revenue increased $750 million for the first nine months of 2018 compared to 2017 due to an increase from acquired businesses of $769 million. Operating income decreased $10$6 million for the first quarternine months of 2018 compared to 2017 primarily due to lower brokerage segment earnings fromat existing businesses of $30 million, mainly due to lower margin and higher operating expenses, and a gain on the collection of receivables in 2017 in the franchise segment, partially offset by higher net revenues.earnings from acquired businesses of $47 million.

BHE and Other

Operating revenue decreased $7increased $22 million for the firstthird quarter of 2018 compared to 2017 due to lowerhigher electricity and natural gas ratesvolumes at MidAmerican Energy Services, LLC. Operating loss increased $4income decreased $6 million for the firstthird quarter of 2018 compared to 2017 due to higher other operating costs, partially offset by higher margin at MidAmerican Energy Services, LLC.

Operating revenue increased $17 million for the first nine months of 2018 compared to 2017 due to higher electricity and natural gas volumes at MidAmerican Energy Services, LLC. Operating loss improved $18 million for the first nine months of 2018 compared to 2017 due to higher margin at MidAmerican Energy Services, LLC and lower other operating costs.

Consolidated Other Income and Expense Items

Interest Expenseexpense

Interest expense is summarized as follows (in millions):
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
                      
Subsidiary debt$360
 $346
 $14
 4 %$347
 $354
 $(7) (2)% $1,062
 $1,045
 $17
 2 %
BHE senior debt and other105
 105
 
 
105
 106
 (1) (1) 314
 317
 (3) (1)
BHE junior subordinated debentures1
 7
 (6) (86)1
 4
 (3) (75) 4
 17
 (13) (76)
Total interest expense$466
 $458
 $8
 2
$453
 $464
 $(11) (2) $1,380
 $1,379
 $1
 

Interest expense increased $8decreased $11 million for the firstthird quarter of 2018 compared to 2017 primarily due to the impact of foreign currency exchange rate movements of $6 million and debt issuances at BHE, MidAmerican Funding, BHE Renewables and HomeServices, partially offset by repayments of BHE junior subordinated debentures of $944 million in 2017, scheduled maturities and principal payments and early redemptions of subsidiary debt.debt, partially offset by debt issuances at BHE, MidAmerican Funding, BHE Renewables and HomeServices.

Capitalized Interestinterest

Capitalized interest increased $2$3 million for the third quarter of 2018 compared to 2017 and $10 million for the first quarternine months of 2018 compared to 2017 primarily due higher construction work-in-progress balances at MidAmerican Energy and BHE Renewables.



Allowance for Equity Fundsequity funds

Allowance for equity funds increased $4$6 million for the third quarter of 2018 compared to 2017 and $16 million for the first quarternine months of 2018 compared to 2017 primarily due to higher construction work-in-progress balances at MidAmerican Energy.

RealizedInterest and Unrealized (Loss) Gain on Marketable Securities, netdividend income

RealizedInterest and unrealized (loss) gaindividend income decreased $5 million for the third quarter of 2018 compared to 2017 primarily due to lower financial asset income from the lower financial asset balance at BHE Renewables and the timing of dividends from the Company's investment in BYD Company Limited.



Gains (losses) on marketable securities, net

Gains (losses) on marketable securities, net increased $212$257 million for the third quarter of 2018 compared to 2017 primarily due to an unrealized lossgain on the Company's investment in BYD Company Limited totaling $207$252 million. The Company had losses on marketable securities for the first nine months of 2018 of $336 million compared to gains on marketable securities in 2017 of $8 million primarily due to an unrealized loss in 2018 on the Company's investment in BYD Company Limited totaling $346 million in the first nine months of 2018.

Other, net

Other, net was income of $19 million for the third quarter of 2018 compared to an expense of $17 million in 2017 primarily due to costs incurred in 2017 associated with the early redemption of subsidiary long-term debt and lower non-service pension expense which includes pension settlement losses recognized in 2017 and 2018 at Northern Powergrid.

Other, net increased $1$42 million for the first quarternine months of 2018 compared to 2017 primarily due to costs incurred in 2017 associated with the early redemption of subsidiary long-term debt, favorable changes in the valuations of interest rate swap derivatives of $8 million and a $7 million settlement received in 2018 related to transformer related outages at the Solar Star projects in 2016 and favorable changes in the valuations of interest rate swap derivatives of $4 million, largely offset by lower investment returns.2016.

Income Tax Expensetax expense (benefit)

Income tax expense decreased $273$161 million for the third quarter of 2018 compared to 2017 and the effective tax rate was 2% for 2018 and 15% for 2017. The effective tax rate decreased primarily due to the reduction in the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, the favorable impacts of ratemaking and higher production tax credits recognized of $35 million, partially offset by income tax expense of $70 million related to an unrealized gain on the Company's investment in BYD Company Limited.

For the first nine months of 2018, the Company had an income tax benefit of $366 million, including a $58$96 million benefit related to an unrealized loss on the Company's investment in BYD Company Limited, forLimited. For the first quarternine months of 2018 compared to 2017, and the Company had an income tax expense of $319 million. The effective tax rate was (78)(19)% for 2018 and 9%13% for 2017. The effective tax rate decreased primarily due to the reduction in the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, lower consolidated state income tax expense, lower United States income taxes on foreign earnings,including a reduction to the state provision for the repatriation tax of $45 million, higher production tax credits recognized of $29$97 million, lower United States income tax on foreign earnings and the favorable impacts of rate making.

Production tax credits are recognized in earnings for interim periods based on the application of an estimated annual effective tax rate to pretax earnings. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold based on a per-kilowatt rate pursuant to the applicable federal income tax law and are eligible for the credit for 10 years from the date the qualifying generating facilities are placed in-service. Production tax credits recognized in 2018 were $115$529 million, or $29$97 million higher than 2017, while production tax credits earned in 2018 were $160$413 million, or $19$67 million higher than 2017. The difference between production tax credits recognized and earned of $45$116 million as of March 31,September 30, 2018, primarily at MidAmerican Energy, will be reflected in earnings over the remainder of 2018.

Equity Incomeincome

Equity income decreased $12$21 million for the third quarter of 2018 compared to 2017 and $45 million for the first quarternine months of 2018 compared to 2017 primarily due to lower pre-tax equity earnings from tax equity investments at BHE Renewables and lower equity earnings at Electric Transmission Texas, LLC due to the impacts of new retail rates effective March 2017.

Net income attributable to noncontrolling interests

Net income attributable to noncontrolling interests decreased $2 million for the third quarter of 2018 compared to 2017 and $11 million for the first nine months of 2018 compared to 2017 primarily due to the April 2018 purchase of a redeemable noncontrolling interest at HomeServices.



Liquidity and Capital Resources

Each of BHE's direct and indirect subsidiaries is organized as a legal entity separate and apart from BHE and its other subsidiaries. It should not be assumed that the assets of any subsidiary will be available to satisfy BHE's obligations or the obligations of its other subsidiaries. However, unrestricted cash or other assets that are available for distribution may, subject to applicable law, regulatory commitments and the terms of financing and ring-fencing arrangements for such parties, be advanced, loaned, paid as dividends or otherwise distributed or contributed to BHE or affiliates thereof. The Company's long-term debt may include provisions that allow BHE or its subsidiaries to redeem such debt in whole or in part at any time. These provisions generally include make-whole premiums. Refer to Note 17 of Notes to Consolidated Financial Statements in Item 8 of the Company's Annual Report on Form 10-K for the year ended December 31, 2017 for further discussion regarding the limitation of distributions from BHE's subsidiaries.



As of March 31,September 30, 2018, the Company's total net liquidity was as follows (in millions):
    MidAmerican NV Northern          MidAmerican NV Northern      
BHE PacifiCorp Funding Energy Powergrid AltaLink Other TotalBHE PacifiCorp Funding Energy Powergrid AltaLink Other Total
                              
Cash and cash equivalents$735
 $17
 $380
 $134
 $23
 $51
 $304
 $1,644
$92
 $308
 $115
 $148
 $36
 $59
 $258
 $1,016
                              
Credit facilities(1)(2)
3,000
 1,000
 909
 650
 239
 1,027
 1,635
 8,460
3,500
 1,200
 909
 650
 202
 1,026
 1,635
 9,122
Less:                              
Short-term debt(1,487) (124) 
 
 (29) (226) (742) (2,608)(508) 
 
 
 (43) (380) (853) (1,784)
Tax-exempt bond support and letters of credit(7) (89) (370) (80) 
 (5) 
 (551)
 (89) (370) (80) 
 (5) 
 (544)
Net credit facilities1,506
 787
 539
 570
 210
 796
 893
 5,301
2,992
 1,111
 539
 570
 159
 641
 782
 6,794
                              
Total net liquidity$2,241
 $804
 $919
 $704
 $233
 $847
 $1,197
 $6,945
$3,084
 $1,419
 $654
 $718
 $195
 $700
 $1,040
 $7,810
Credit facilities:                              
Maturity dates(1)
2018, 2020
 2020
 2018, 2020
 2020
 2020
 2018, 2019, 2022
 2018, 2022
  2021
 2021
 2019, 2021
 2021
 2020
 2018, 2022
 2018,
2019, 2022

  

(1) 
Refer to Note 6 of the Notes to Consolidated Financial Statements in Item 1 of this Form 10-Q for further discussion regarding the Company's recent financing transactions.

(2) 
Includes the drawn uncommitted credit facilities totaling $29m$7 million at Northern Powergrid.

Operating Activities

Net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $1.5$5.0 billion and $1.4$5.1 billion, respectively. The changedecrease was primarily due to a reduction in income tax receipts, partially offset by changes in working capital.

The timing of the Company's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions used for each payment date.

The Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform")Reform reduced the federal corporate tax rate from 35% to 21% effective January 1, 2018, created a one-time repatriation tax of foreign earnings and profits, expected to be paid over the next eight years, eliminated bonus depreciation on qualifying regulated utility assets acquired after September 27,December 31, 2017 and extended and modified the additional first-year bonus depreciation for non-regulated property. BHE's regulated subsidiaries anticipate passing the benefits of lower tax expense to customers through regulatory mechanisms including lower current rates and reductions to rate base. The 2017 Tax Reform and the related regulatory outcomes will result in lower revenue, income taxestax and cash flow in 2018 and future years.years compared to 2017. BHE does not expect the 2017 Tax Reform and related regulatory treatment to have a material adverse impact on its cash flows, subject to actual regulatory outcomes, which will be determined based on rulings by regulatory commissions expected in 2018.2018 and 2019.



In December 2015, the Protecting Americans from Tax Hikes Act of 2015 ("PATH") was signed into law, extending bonus depreciation for qualifying property acquired and placed in-service before January 1, 2020 (bonus depreciation rates were set at 50% in 2015-2017, 40% in 2018, and 30% in 2019), with an additional year for certain longer lived assets. Production tax credits were extended and phased-out for wind power and other forms of non-solar renewable energy projects that begin construction before the end of 2019. Production tax credits are maintained at full value through 2016, at 80% of the published rate in 2017, at 60% of the published rate in 2018, and 40% of the published rate in 2019. Investment tax credits were extended and phased-down for solar projects that are under construction before the end of 2021 (investment tax credit rates are 30% through 2019, 26% in 2020 and 22% in 2021; they revert to the statutory rate of 10% thereafter). The Company's cash flows from operations are expected to benefit from PATH due to bonus depreciation on qualifying assets through 2019 and from the 2017 Tax Reform for non-regulated property through 2026, production tax credits through 2029 and investment tax credits earned on qualifying wind and solar projects through 2021, respectively. As a result of 2017 Tax Reform, bonus depreciation on qualifying assets acquired after September 27,December 31, 2017 is eliminated for regulated utility property and is extended and modified for non-regulated property. The Company believes property acquired on or before September 27, 2017 will remain subject to PATH.



Investing Activities

Net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $(1.2)$(4.5) billion and $(1.5)$(4.4) billion, respectively. The change was primarily due to higher capital expenditures of $1.0 billion, partially offset by lower cash paid for acquisitions, net of $579 million, partially offset by higher capital expenditurescash acquired, of $210$997 million. Refer to "Future Uses of Cash" for further discussion of capital expenditures.

Acquisitions

The Company completed various acquisitions totaling $579$105 million, net of cash acquired, for the three-monthnine-month period ended March 31,September 30, 2018. The purchase price for each acquisition was allocated to the assets acquired and liabilities assumed, which primarily related to residential real estate brokerage businesses. There were no other material assets acquired or liabilities assumed.

The Company completed various acquisitions totaling $1.1 billion, net of cash acquired, for the nine-month period ended September 30, 2017. The purchase price for each acquisition was allocated to the assets acquired and liabilities assumed, which primarily related primarily to residential real estate brokerage businesses, development and construction costs for the 110-megawatt Alamo 6 solar-powered generationsolar project and the 50-megawatt Pearl solar project, and the remaining 25% interest in the Silverhawk natural gas-fueled generation facility at Nevada PowerPower. As a result of the various acquisitions, the Company acquired assets of $1.1 billion, assumed liabilities of $476 million and a residential real estate brokerage business. There were no other material assets acquired or liabilities assumed.recognized goodwill of $522 million.

Financing Activities

Net cash flows from financing activities for the three-monthnine-month period ended March 31,September 30, 2018 was $336$(392) million. Uses of cash totaled $5.9 billion and consisted mainly of net repayments of short-term debt totaling $2.7 billion, repayments of subsidiary debt totaling $2.3 billion, repayments of BHE senior debt of $650 million and the purchase of redeemable noncontrolling interest of $131 million. Sources of cash totaled $2.8$5.5 billion and consisted of proceeds from BHE senior debt issuances totaling $2.2$3.2 billion and proceeds from subsidiary debt issuances totaling $687 million. Uses of cash totaled $2.5 billion and consisted mainly of net repayments of short-term debt totaling $1.9 billion and repayments of subsidiary debt totaling $550 million.$2.4 billion.

For a discussion of recent financing transactions, refer to Note 6 of Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.

Net cash flows from financing activities for the three-monthnine-month period ended March 31,September 30, 2017 was $328$(330) million. Uses of cash totaled $2.3 billion and consisted mainly of repayments of BHE senior debt and junior subordinated debentures totaling $1.3 billion and repayments of subsidiary debt totaling $834 million. Sources of cash totaled $984 million$1.9 billion and consisted of $844 million$1.6 billion of proceeds from subsidiary debt issuances and $140$365 million of net proceeds from short-term debt. Uses of cash totaled $656 million and consisted mainly of repayments of subsidiary debt totaling $425 million and repayments of BHE junior subordinated debentures of $200 million.

The Company may from time to time seek to acquire its outstanding debt securities through cash purchases in the open market, privately negotiated transactions or otherwise. Any debt securities repurchased by the Company may be reissued or resold by the Company from time to time and will depend on prevailing market conditions, the Company's liquidity requirements, contractual restrictions and other factors. The amounts involved may be material.



Future Uses of Cash

The Company has available a variety of sources of liquidity and capital resources, both internal and external, including net cash flows from operating activities, public and private debt offerings, the issuance of commercial paper, the use of unsecured revolving credit facilities, the issuance of equity and other sources. These sources are expected to provide funds required for current operations, capital expenditures, acquisitions, investments, debt retirements and other capital requirements. The availability and terms under which BHE and each subsidiary has access to external financing depends on a variety of factors, including its credit ratings, investors' judgment of risk and conditions in the overall capital markets, including the condition of the utility industry and project finance markets, among other items.

Capital Expenditures

The Company has significant future capital requirements. Capital expenditure needs are reviewed regularly by management and may change significantly as a result of these reviews, which may consider, among other factors, impacts to customers' rates; changes in environmental and other rules and regulations; outcomes of regulatory proceedings; changes in income tax laws; general business conditions; load projections; system reliability standards; the cost and efficiency of construction labor, equipment and materials; commodity prices; and the cost and availability of capital. Expenditures for certain assets may ultimately include acquisitions of existing assets.



The Company's historical and forecast capital expenditures, each of which exclude amounts for non-cash equity AFUDC and other non-cash items, are as follows (in millions):
Three-Month Periods AnnualNine-Month Periods Annual
Ended March 31, ForecastEnded September 30, Forecast
2017 2018 20182017 2018 2018
Capital expenditures by business:          
PacifiCorp$178
 $236
 $1,248
$553
 $713
 $1,198
MidAmerican Funding238
 365
 2,476
1,165
 1,466
 2,365
NV Energy99
 109
 547
333
 342
 545
Northern Powergrid151
 170
 704
434
 446
 535
BHE Pipeline Group38
 53
 420
174
 251
 480
BHE Transmission85
 71
 228
255
 203
 269
BHE Renewables71
 59
 866
239
 741
 868
HomeServices5
 11
 49
18
 34
 49
BHE and Other
 1
 15
8
 7
 11
Total$865
 $1,075
 $6,553
$3,179
 $4,203
 $6,320

Capital expenditures by type:          
Wind generation$49
 $107
 $2,812
$804
 $1,696
 $2,658
Solar generation51
 14
 33
Electric transmission92
 21
 168
267
 118
 194
Environmental
 18
 101
Other growth136
 135
 754
495
 504
 706
Operating537
 780
 2,685
1,613
 1,885
 2,762
Total$865
 $1,075
 $6,553
$3,179
 $4,203
 $6,320



The Company's historical and forecast capital expenditures consisted mainly of the following:
Wind generation includes the following:
Construction of wind-powered generating facilities at MidAmerican Energy totaling $16$704 million and $29$455 million for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, respectively. MidAmerican Energy anticipates costs for wind-powered generating facilities will total an additional $1,239$550 million for 2018. In August 2016, the IUB issued an order approving ratemaking principles related to MidAmerican Energy's construction of up to 2,000 MW (nominal ratings) of wind-powered generating facilities expected to be placed in-service in 2017 through 2019, including 334 MW (nominal ratings) placed in-service in 2017. The ratemaking principles establish a cost cap of $3.6 billion, including AFUDC, and a fixed rate of return on equity of 11.0% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding. The cost cap ensures that as long as total costs are below the cap, the investment will be deemed prudent in any future Iowa rate proceeding. Additionally, the ratemaking principles modify the revenue sharing mechanism in effect prior to 2018. The revised sharing mechanism, which was effective January 1, 2018, will be triggered each year by actual equity returns exceeding a weighted average return on equity for MidAmerican Energy calculated annually. Pursuant to the change in revenue sharing, MidAmerican Energy will share 100% of the revenue in excess of this trigger with customers. Such revenue sharing will reduce coal and nuclear generation rate base, which is intended to mitigate future base rate increases. MidAmerican Energy expects all of these wind-powered generating facilities to qualify for 100% of production tax credits available.
Construction of wind-powered generating facilities at PacifiCorp totaling $1$5 million and $4 million for the three-month periodnine-month periods ended March 31, 2018.September 30, 2018 and 2017, respectively. PacifiCorp anticipateanticipates costs for these activities will total an additional $202$62 million for 2018.The2018. The new wind-powered generating facilities are expected to be placed in-service in 2020. The energy production from the new wind-powered generating facilities is expected to qualify for 100% of the federal production tax credits available for ten years once the equipment is placed in-service.


Repowering certain existing wind-powered generating facilities at PacifiCorp and MidAmerican Energy totaling $71$303 million and $2$276 million for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, respectively. PacifiCorp and MidAmerican Energy anticipate costs for these activities will total an additional $549$297 million for 2018. The energy production from such repowered facilities is expected to qualify for 100% of the federal renewable electricity production tax credits available for ten years following each facility's return to service.
Construction of wind-powered generating facilities at BHE Renewables totaling $18$684 million and $69 million for the three-month periodnine-month periods ended March 31, 2018.September 30, 2018 and 2017, respectively. In April 2018, BHE Renewables completed the asset acquisition of 300 MW of wind-powered generating facilities in Texas totaling $495 million. BHE Renewables anticipates costs will total an additional $717$51 million in 2018 for development and construction of up to 512212 MW of wind-powered generating facilities.
Solar generation includes the construction of the community solar gardens project in Minnesota totaling $14 million and $36 million for the three-month periods ended March 31, 2018 and 2017, respectively. BHE Renewables expects to spend an additional $9 million in 2018 to complete the project, which will be comprised of 28 locations with a nominal facilities capacity of 98 MW.
Electric transmission includes PacifiCorp's costs associated with main grid reinforcement and the Energy Gateway Transmission Expansion Program, MidAmerican Energy's Multi-Value Projects approved by the Midcontinent Independent System Operator, Inc. for the construction of approximately 250 miles of 345 kV transmission line located in Iowa and Illinois and AltaLink's directly assigned projects from the AESO.
EnvironmentalOther growth includes the installation of new or the replacement of existing emissions control equipment at certain generating facilities at the Utilities, including installation or upgrade of selective catalytic reduction control systems and low nitrogen oxide burners to reduce nitrogen oxides, particulate matter control systems, sulfur dioxide emissions control systems and mercury emissions control systems, as well as expendituresinvestments in solar generation for the managementconstruction of coal combustion residuals.
Other growth includesthe community solar gardens project in Minnesota comprised of 28 locations with a nominal facilities capacity of 98 MW, projects to deliver power and services to new markets, new customer connections and enhancements to existing customer connections.
Operating includes ongoing distribution systems infrastructure needed at the Utilities and Northern Powergrid, and investments in routine expenditures for generation, transmission, distribution and other infrastructure needed to serve existing and expected demand.demand and environmental spending relating to emissions control equipment and the management of coal combustion residuals.

Acquisitions

In AprilMay 2018, HomeServices acquiredMidAmerican Energy filed with the remaining 33.3% interestIUB an application for ratemaking principles related to the construction of up to 591 MW (nominal ratings) of additional wind-powered generating facilities ("Wind XII") expected to be placed in-service by the end of 2020. The filing, which is subject to IUB approval, establishes a cost cap of $922 million, including AFUDC, a fixed rate of return on equity of 11.25% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding, and maintains the revenue sharing mechanism currently in effect. The cost cap ensures that as long as total costs are below the cap, the investment will be deemed prudent in any future Iowa rate proceeding. In September 2018, MidAmerican Energy filed with the IUB a real estate brokerage franchise businesssettlement agreement signed by a majority of the parties to the ratemaking principles proceeding for Wind XII. The settlement agreement, which is subject to IUB approval, establishes a fixed rate of return on equity of 11.0% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding and provides that all Iowa retail energy benefits from Wind XII will be excluded from the noncontrollingIowa energy adjustment clause and, instead, will reduce rate base. Additionally, the settlement agreement modifies the current revenue sharing mechanism, effective January 1, 2019, such that revenue sharing will be triggered each year by actual equity returns above a threshold calculated annually or 11%, whichever is less, and MidAmerican Energy will share 90% of the revenue in excess of the trigger, instead of the current 100% sharing. The calculated threshold will be the year-end weighted average of equity returns for rate base as authorized via ratemaking principles and, for remaining rate base, interest member atrates on 30-year single A-rated utility bond yields plus 400 basis points, with a contractually determined option exercise formula totaling $131 million.minimum return of 9.5%. MidAmerican Energy expects all of these wind-powered generating facilities to qualify for 100% of production tax credits available.

Other Renewable Investments

The Company has invested in projects sponsored by third parties, commonly referred to as tax equity investments. Under the terms of these tax equity investments, the Company has entered into equity capital contribution agreements with the project sponsors that require contributions. The Company has made contributions of $403 million, $584 million and $170 million in 2017, 2016 and 2015, respectively. Additionally, the Company has made contributions of $164$252 million through March 31,September 30, 2018, and has commitments as of March 31,September 30, 2018, subject to satisfaction of certain specified conditions, to provide equity contributions of $537$540 million for the remainder of 2018 and $348 million in 2019 pursuant to these equity capital contribution agreements as the various projects achieve commercial operation. Once a project achieves commercial operation, the Company enters into a partnership agreement with the project sponsor that directs and allocates the operating profits and tax benefits from the project.

Contractual Obligations

As of March 31,September 30, 2018, there have been no material changes outside the normal course of business in contractual obligations from the information provided in Item 7 of the Company's Annual Report on Form 10-K for the year ended December 31, 2017 other than the recent financing transactions and the renewable tax equity investments previously discussed.



Quad Cities Generating Station Operating Status

Exelon Generation Company, LLC ("Exelon Generation"), the operator of Quad Cities Generating Station Units 1 and 2 ("Quad Cities Station") of which MidAmerican Energy has a 25% ownership interest, announced on June 2, 2016, its intention to shut down Quad Cities Station on June 1, 2018, as a result of Illinois not passing adequate legislation and Quad Cities Station not clearing the 2019-2020 PJM Interconnection, L.L.C. capacity auction. MidAmerican Energy expressed to Exelon Generation its desire for the continued operation of the facility through the end of its operating license in 2032 and worked with Exelon Generation on solutions to that end. In December 2016, Illinois passed legislation creating a zero emission standard, which went into effect June 1, 2017. The zero emission standard requires the Illinois Power Agency to purchase zero emission credits ("ZECs") and recover the costs from certain ratepayers in Illinois, subject to certain limitations. The proceeds from the zero emission credits will provide Exelon Generation additional revenue through 2027 as an incentive for continued operation of Quad Cities Station. For the nuclear assets already in rate base, MidAmerican Energy's customers will not be charged for the subsidy, and MidAmerican Energy will not receive additional revenue from the subsidy.

On February 14, 2017, two lawsuits were filed with the United States District Court for the Northern District of Illinois ("Northern District of Illinois") against the Illinois Power Agency alleging that the state's zero emission credit program violates certain provisions of the U.S. Constitution. Both complaints argue that the Illinois zero emission credit program will distort the FERC's energy and capacity market auction system of setting wholesale prices. As majority owner and operator of Quad Cities Station, Exelon Generation intervened and filed motions to dismiss in both matters. On July 14, 2017, the Northern District of Illinois granted the motions to dismiss. On July 17, 2017, the plaintiffs filed appeals with the United States Court of Appeals for the Seventh Circuit. Parties haveCircuit ("Seventh Circuit"). On May 29, 2018, the U.S. Department of Justice and the FERC filed briefsan amicus brief concluding federal rules do not preempt Illinois' ZEC program. On September 13, 2018, the Seventh Circuit upheld the Northern District of Illinois' ruling concluding that Illinois' ZEC program does not violate the Federal Power Act and presented oral argument. MidAmerican Energy cannot predict the outcome of these lawsuits.is thus constitutional.



On January 9, 2017, the Electric Power Supply Association filed two requests with the FERC seeking to expand Minimum Offer Price Rule ("MOPR") provisions to apply to existing resources receiving zero emission credit compensation. If successful, an expanded MOPR could result in an increased risk of Quad Cities Station not clearing in future capacity auctions and Exelon Generation no longer receiving capacity revenues for the facility. As majority owner and operator of Quad Cities Station, Exelon Generation has filed protests at the FERC in response to each filing. The timing of the FERC's decision with respect to both proceedings is currently unknown and the outcome of these matters is currently uncertain.

Regulatory Matters

BHE's regulated subsidiaries and certain affiliates are subject to comprehensive regulation. The discussion below contains material developments to those matters disclosed in Item 1 of each Registrant's Annual Report on Form 10-K for the year ended December 31, 2017, and new regulatory matters occurring in 2018.

PacifiCorp

In June 2017, PacifiCorp filed two applications each with the UPSC, IPUC and the WPSC for the Energy Vision 2020 project. The first application sought approvals to construct or procure four new Wyoming wind resources with a total capacity of 860 MWs identified as benchmark resources and certain transmission facilities. A request for proposals was issued in September 2017 seeking up to 1,270 MWs to compete against PacifiCorp's benchmark resources in the final resource selection process for the project. PacifiCorp has identified four winning wind resource bids from this solicitation totaling 1,311 MWs, consisting of 1,111 MWs owned and 200 MW as a power-purchase agreement. The combined new wind and transmission projects will cost approximately $2 billion. TheIn October 2018, the WPSC approved a settlement agreement and certificates of public convenience and necessity for the transmission facilities and three of the winning wind resources in a bench decision on April 12, 2018.resources. The settlement supports 950 MWs of owned wind resources and the 200 MW purchase power agreement. Hearings are setwere held by the UPSC and IPUC to occur in May 2018. The UPSC approved the application in an order issued in June 2018. The order grants approval of the 1,150 MWs of new wind and transmission facilities up to the projected costs. PacifiCorp can seek recovery of any actual costs in excess of the estimates in a general rate case. The IPUC approved a partial settlement agreement in an order issued in July 2018. The settlement provides cost recovery through a tracking mechanism. The IPUC order caps cost recovery at the overall estimated costs for the new wind and transmission facilities. The second application sought approval of PacifiCorp's resource decision to upgrade or "repower" existing wind resources, as prudent and in the public interest. PacifiCorp estimates the wind repowering project will cost approximately $1 billion. Applications filed in Utah, Idaho and Wyoming seek approval for the proposed rate-making treatment associated with the projects. The hearings on repowering in Utah and Wyoming have been extended to provide time for supplemental analyses for updated costs andprojects, including recovery of the Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform") and are scheduled to occur in May and June 2018.replaced equipment. In December 2017, the IPUC approved an all-party stipulation for approval of the application to repower existing wind facilities and allow recovery of costs in rates through an adjustment to the annual ECAM filing. In May 2018, the UPSC approved the application for repowering, up to the estimated costs, with the exception of the Leaning Juniper project, for which the commission expressed concern with the economics. If PacifiCorp chooses to proceed with this project, the project will be subject to a standard prudence review in future general rate cases. The WPSC approved an all-party settlement agreement to repower wind facilities in a bench decision in June 2018. In the decision, the WPSC specifically removed the Leaning Juniper project, located in Oregon, from the agreement and the approval, consistent with the treatment in Utah.



The 2017 Tax Reform enacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. PacifiCorp has agreed to defer the impact of the tax law change with each of its state regulatory bodies. PacifiCorp will be proposing to reduceproposed reducing customer rates for a portion of the lower annual income tax expense resulting from the decrease in federal tax rates and deferring the remainder to offset other costs as approved by the regulatory bodies. In March 2018, PacifiCorp proposed 1% rate reductions in Utah, Wyoming and Idaho. PacifiCorp proposed the rate reductions to be effective May 1, 2018 in Utah, July 1, 2018 in Wyoming and June 1, 2018 in Idaho. In April 2018, the UPSC ordered a rate reduction of $61 million, or 3.1%, effective May 1, 2018 through December 31, 2018, based on a preliminary estimate of the revenue requirement impact of 2017 Tax Reform. This credit will likely be adjusted effective January 1, 2019 whenIn October 2018, PacifiCorp filed an all-party settlement with the final rates are approvedUPSC that continues the current rate reduction of $61 million, with other benefits provided to customers through a combination of a reduction to thermal steam plant and deferral to offset costs in the next phase of the proceeding later in 2018. A procedural schedule is expected to be set by the IPUC.general rate case. PacifiCorp filed a partial settlement with the WPSC onin April 11, 2018 that provides a rate reduction of approximately 3% beginning$23 million, or 3.3%, effective July 1, 2018 through June 30, 2019, with the remaining tax savings to be deferred with offsets to other costs. In June 2018, the WPSC approved the rate reduction on an interim basis. In May 2018, the IPUC approved an all-party settlement to implement a rate reduction of $6 million, or 2.2%, effective June 1, 2018 through May 31, 2019, to pass back a portion of the tax benefit. The credit may be adjusted following the next phase of the proceeding. In June 2018, PacifiCorp filed reports with the WPSC and IPUC with the calculation of the full impact of the tax law change on revenue requirements. These reports initiated the next phase of the proceedings in these states. The WPSC scheduled a hearing for January 2019. A hearing has not yet been scheduled in Idaho.



In September 2018, PacifiCorp filed applications for depreciation rate changes with the UPSC, the OPUC, the WPSC, the WUTC and the IPUC based on PacifiCorp's most recent depreciation study. The proposed depreciation rate changes would result in an increase in annual depreciation expense of approximately $300 million. The depreciation study will be evaluated by the state commissions during 2018 and 2019 and is subject to their review and approval. PacifiCorp requested that the new depreciation rates become effective January 1, 2021. The impacts of the new depreciation study will be included in rates as part of a future regulatory proceeding.

Utah

In March 2018, PacifiCorp filed its annual EBA with the UPSC seeking approval to recover from customers $3 million in deferred net power costs for the period January 1, 2017 through December 31, 2017, reflecting the difference between base and actual net power costs in the 2017 deferral period. The rate change was approved by the UPSC effective May 1, 2018 on an interim basis. A hearing on final approval is scheduled for February 2019.

In March 2018, PacifiCorp filed its annual REC balancing account application with the UPSC seeking to recover $1 million from customers for the period January 1, 2017 through December 31, 2017 for the difference in base and actual RECs. The rate change will becomebecame effective on an interim basis June 1, 2018, with final approval received in August 2018.

Oregon

In March 2018, PacifiCorp submitted its filing for the annual TAM filing in Oregon requesting an annual increase of $17 million, or an average price increase of 1.3%, based on forecasted net power costs and loads for calendar year 2019. The filing includes an update of the impact of expiring production tax credits, which accounts for $6$11 million of the total rate adjustment, consistent with Oregon Senate Bill 1547 and reflecting the decrease in the revenue requirement benefit of production tax credits due to the change in the federal income tax rate. The filing was updated in July to reflect an all-parties partial stipulation resolving all but one issue in the proceeding and to update changes in contracts and market conditions. The updated filing is requesting an annual increase of $1 million. The OPUC approved the all-parties partial stipulation and resolved all issues in the proceeding in an order issued in October 2018. The filing will be updated for changes in contracts and market conditions again in July and November 2018, before final rates become effective in January 2019.

Wyoming

In April 2018, PacifiCorp filed its annual ECAM and REC applicationsRRA application with the WPSC. The ECAM filing requests approval to refund to customers $3 million in deferred net power costs for the period January 1, 2017 through December 31, 2017. The rate change was approved by the WPSC on an interim basis, effective July 1, 2018. PacifiCorp is seekingexpects the interim rates to be effective July 1,become final in the fourth quarter of 2018.
 
Washington

OnIn December 1, 2017, PacifiCorp submitted a tariff filing to implement the first price change for the decoupling mechanism approved in PacifiCorp's 2015 regulatory rate review. WUTC staff disputed PacifiCorp's interpretation of the WUTC's order for the decoupling mechanism and PacifiCorp's subsequent calculations requesting additional funds be booked for return to customers. In February 2018, the WUTC granted the staff's motions and rejected PacifiCorp's tariff revision and required that PacifiCorp re-file price changes for its decoupling mechanism. In March 2018, the WUTC issued a letter accepting PacifiCorp's revised compliance filing in the Washington Decoupling Revenue Adjustment docket. The filing resultsresulted in a net credit to customers of $2 million, effective April 1, 2018.

In May 2018, PacifiCorp filed a settlement stipulation and joint narrative in support of the settlement stipulation resolving all issues in the 2016 PCAM with the WUTC. The settlement agreement resulted in a net credit to the PCAM balancing account of $5 million. The WUTC issued an order in July 2018 approving the settlement in full.



In June 2018, PacifiCorp submitted its 2017 PCAM filing with WUTC seeking approval to credit $13 million to the PCAM balancing account. No rate changes were requested. In August 2018, the WUTC issued an order approving PacifiCorp's filing and directed PacifiCorp to amortize the PCAM balance of $18 million over 12 months and allowed PacifiCorp to petition the WUTC to alter the amortization period. In October 2018, PacifiCorp submitted a compliance filing and petition requesting to amortize the balance over 24 months effective January 1, 2019. The WUTC denied PacifiCorp's petition and ordered PacifiCorp to submit a compliance filing with tariffs supporting a 12-month amortization period effective November 1, 2018.

In June 2018, PacifiCorp filed with WUTC a proposal to decrease the System Benefits Charge ("SBC") collection rate by $2 million. In July 2018, the WUTC approved the proposed rates to go into effect August 1, 2018.

Idaho

In March 2018, PacifiCorp filed its annual ECAM application with the IPUC requesting recovery of $8 million for deferred costs in 2017. This filing includes recovery of the difference in actual net power costs to the base level in rates, an adder for recovery of the Lake Side 2 resource, recovery of Deer Creek longwall mine investment and changes in production tax credits and renewable energy credits. The filing requests no changeIPUC approved recovery of the deferred costs, which resulted in rates as the requested recovery amount remained constant.


a rate reduction of $2 million, or 0.8% effective June 1, 2018.

California

In April 2017, PacifiCorp filed an application with the CPUC for an overall rate increase of $3 million, or 1.3%, to recover $3 million of costs recorded in the catastrophic events memorandum account over a two-year period effective April 1, 2018. The catastrophic events memorandum account includes costs for implementing drought-related fire hazard mitigation measures and storm damage and recovery efforts associated with the December 2016 and January 2017 winter storms. The CPUC issued an order in February 2018 approving this request.

OnIn April 12, 2018, PacifiCorp filed a general rate case with the CPUC for an overall rate increase of $1 million, or 0.9%, effective January 1, 2019.

In December 2014, PacifiCorp filed an advice letter with the CPUC to request approval to sell certain Utah mining assets and to establish memorandum accounts to track the costs associated with the Utah Mine Disposition for future recovery. In July 2015, the CPUC Energy Division issued a letter requiring PacifiCorp to file a formal application for approval of the sale of certain Utah mining assets. Accordingly, in September 2015, PacifiCorp filed an application with the CPUC. In February 2017, a joint motion was filed with the CPUC seeking approval of a settlement agreement reached by PacifiCorp and all other parties. The agreement states, among other things, that the decision to sell certain Utah mining assets is in the public interest. Parties also reserve their rights to additional testimony, briefs and hearings to the extent the CPUC determines that additional California Environmental Quality Act proceedings are necessary. In September 2018, the CPUC issued a decision that (1) approves, with modification, the stipulation entered into between PacifiCorp and all other parties; (2) finds that the sale of the mining assets and early closure of the Deer Creek mine was in the public interest; and (3) finds that the California Environmental Quality Act ("CEQA") does not apply to the sale of the mining assets.
MidAmerican Energy

The 2017 Tax Reform enacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. Accumulated deferred income tax balances were re-measured at the 21% rate and regulatory liabilities increased reflective of the probability of such balances being passed backpursuant to customers.mechanisms approved in Iowa. MidAmerican Energy has made filings or has been in discussions with each of its state rate regulatory bodies proposing either a reduction in retail rates or rate base for all or a portion of the net benefits of the 2017 Tax Reform for 2018 and beyond. MidAmerican Energy proposed in Iowa, its largest jurisdiction, to reduce customer revenue via a rider mechanism for the impact of the lower statutory rate on current operations, subject to change depending on actual results, and defer as a regulatory liability the amortization of excess deferred income taxes. The Iowa Utilities Board approved MidAmerican Energy's Iowa tax reform rate reduction tariff on April 27, 2018, although it has opened a docket to consider concerns by certain stakeholders. The Illinois Commerce Commission approved MidAmerican Energy's Illinois tax reform rate reduction tariff on March 21, 2018, and the Iowa Utilities Board approved MidAmerican Energy's Iowa tax reform rate reduction tariff on April 27, 2018. MidAmerican Energy currently estimates that its 2018 revenue will be reduced by approximately $53$86 million due to rate reductions for tax reform.



NV Energy (Nevada Power and Sierra Pacific)

Regulatory Rate Reviews

In June 2017, Nevada Power filed an electric regulatory rate review with the PUCN. The filing supported an annual revenue increase of $29 million, or 2%, but requested no incremental annual revenue relief. In December 2017, the PUCN issued an order which reduced Nevada Power's revenue requirement by $26 million and requires Nevada Power to share 50% of revenues related to equity returnsregulatory earnings above 9.7%. As a result of the order, Nevada Power recorded expense of $28 million in December 2017 primarily due to the reduction of a regulatory asset to return to customers revenue collected for costs not incurred. The new rates were effective on February 15, 2018. In January 2018, Nevada Power filed a petition for clarification of certain findings and directives in the order and intervening parties filed motions for reconsideration. The PUCN has not yet ruled on the filed motions. Nevada Power cannot predict the timing or ultimate outcome of the PUCN rulings.

The 2017 Tax Reform enacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. In February 2018, the Nevada Utilities made filings with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from the 2017 Tax Reform for 2018 and beyond. The filingfilings supported an annual rate reduction of $59 million and $25 million for Nevada Power and Sierra Pacific, respectively. In March 2018, the PUCN issued an order approving the rate reduction proposed by the Nevada Utilities. The new rates were effective April 1, 2018. The order has extended the procedural schedule to allow parties additional discovery relevant to 2017 Tax Reform and a hearing was held in July 2018. In September 2018, the PUCN issued an order directing the Nevada Utilities to record the amortization of any excess protected accumulated deferred income tax arising from the 2017 Tax Reform withas a hearing scheduledregulatory liability effective January 1, 2018.

In March 2018, the FERC issued a Show Cause Order related to 2017 Tax Reform. In May 2018, in June 2018. Theresponse to the Show Cause Order, the Nevada Utilities cannot predictproposed a reduction to transmission and certain ancillary service rates under the timing or ultimate outcomeNV Energy Open Access Transmission Tariff for the lower annual income tax expense anticipated from 2017 Tax Reform. The new rates are expected to become effective March 21, 2018. Upon the FERC's acceptance of further regulatory proceedings.the rates and the effective date, the Nevada Utilities will begin billing transmission customers under the new rates subject to refund from the effective date. As of September 30, 2018, the Nevada Utilities accrued $2 million for amounts subject to rate refund.

Chapter 704B Applications

Chapter 704B of the Nevada Revised Statutes allows retail electric customers with an average annual load of one MW or more to file with the PUCN an application to purchase energy from alternative providers of a new electric resource and become distribution only service customers. On a case-by-case basis, the PUCN will assess the application and may deny or grant the application subject to conditions, including paying an impact fee, paying on-going charges and receiving approval for specific alternative energy providers and terms. The impact fee and on-going charges are assessed to alleviate the burden on other Nevada customers for the applicant's share of previously committed investments and long-term renewable contracts and are set at a level designed such that the remaining customers are not subjected to increased costs.



In October 2016, Wynn Las Vegas, LLC ("Wynn"), became a distribution only service customer and started procuring energy from another energy supplier. In April 2017, Wynn filed a motion with the PUCN seeking relief from the January 2016 order that established the impact fee that was paid in September 2016 and requested the PUCN adopt an alternative impact fee and revise on-going charges associated with retirement of assets and high cost renewable contracts. This request is still pending.In September 2018, the PUCN granted relief requiring Nevada Power to credit $3 million as an offset against Wynn's remaining impact fee obligation. In October 2018, Wynn elected to pay the net present value lump sum of its Renewable Base Tariff Energy Rate obligation of $2 million, net of the credit of $3 million. The PUCN ordered Nevada Power to establish a regulatory liability and amortize the lump sum payment amount in equal monthly installments through December 2022.



In November 2016, Caesars Enterprise Service ("Caesars"), a customer of the Nevada Utilities, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Nevada Power and Sierra Pacific. In March 2017, the PUCN approved the application allowing Caesars to purchase energy from alternative providers subject to conditions, including paying an impact fee. In March 2017, Caesars provided notice that it intends to pay the impact fee monthly for three and six years at Sierra Pacific and Nevada Power, respectively, and proceed with purchasing energy from alternative providers. In July 2017, Caesars made the required compliance filings and, in September 2017, the PUCN issued an order allowing Caesars to acquire electric energy and ancillary services from another energy supplier and become a distribution only service customer of the Nevada Utilities. In December 2017, Caesars provided notice that it intends to transition eligible meters in the Nevada Power service territory to unbundled electric service in February 2018 at the earliest. In January 2018, Caesars became a distribution only service customer and started procuring energy from another energy supplier for its eligible meters in the Sierra Pacific service territory. In February 2018, Caesars became a distribution only service customer and started procuring energy from another energy supplier for its eligible meters in the Nevada Power service territory. Following the PUCN’sPUCN's order from March 2017, Caesars’Caesars' will pay Nevada Power and Sierra Pacific impact fees of $44 million in 72 equal monthly payments and $4 million in 36 monthly payments, respectively.

In May 2017, Peppermill Resort Spa Casino ("Peppermill"), a customer of Sierra Pacific, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Sierra Pacific. In August 2017, the PUCN approved a stipulation allowing Peppermill to purchase energy from alternative providers subject to conditions, including paying an impact fee. In September 2017, Peppermill provided notice that it intends to pay the impact fee and proceed with purchasing energy from alternative providers. In April 2018, Peppermill paid a one-time impact fee of $3 million and became a distribution only service customer and started procuring energy from another energy supplier.

In June 2018, Station Casinos LLC ("Station"), a customer of Nevada Power, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Nevada Power. In October 2018, the PUCN approved a stipulation allowing Station to purchase energy from alternative providers subject to conditions, including paying an impact fee of $15 million.

As of October 2018, the Nevada Utilities have received communications from seven additional current and pending customers, of which four provided a letter of intent to file with the PUCN an application and three have filed an application to purchase energy from alternative providers of a new electric resource and become distribution only service customers.

Net Metering

Nevada enacted Assembly Bill 405 ("AB 405") on June 15, 2017. The legislation, among other things, established net metering crediting rates for private generation customers with installed net metering systems less than 25 kilowatts. Under AB 405, private generation customers will be compensated at 95% of the rate the customer would have paid for a kilowatt-hour of electricity supplied by the Nevada Utilities for the first 80 MWs of cumulative installed capacity of all net metering systems in Nevada, 88% of the rate the customer would have paid for a kilowatt-hour of electricity supplied by the Nevada Utilities for the next 80 MWs of cumulative installed capacity in Nevada, 81% of the rate the customer would have paid for a kilowatt-hour of electricity supplied by the Nevada Utilities for the next 80 MWs of cumulative installed capacity in Nevada and 75% of the rate the customer would have paid for a kilowatt-hour of electricity supplied by the Nevada Utilities for any additional private generation capacity. As of September 30, 2018, the cumulative installed and applied-for capacity of all net metering systems in Nevada was 97 MWs. In July 2017, the Nevada Utilities filed with the PUCN proposed amendments to their tariffs necessary to comply with the provisions of AB 405. The filing in July 2017 also included a proposed optional time of use rate tariff for both Nevada Power and Sierra Pacific, which has not yet been set for procedural review. In September 2017, the PUCN issued an order directing the Nevada Utilities to place all new private generation customers who have submitted applications after June 15, 2017, into a new rate class with rates equal to the rate class they would be in if they were not private generation customers. Private generation customers with installed net metering systems less than 25 kilowatts prior to June 15, 2017, may elect to migrate to the new rate class created under AB 405 or stay in their otherwise-applicable rate class. The new AB 405 rates became effective December 1, 2017. In February 2018, the Nevada Utilities filed with the PUCN a settlement agreement resolving the outstanding issues related to its proposal for optional time-differentiated rate schedules. In March 2018, the PUCN approved the settlement agreement.



Energy Choice Initiative - Deregulation

In November 2016, a majority of Nevada voters supported a ballot measure to amend Article 1 of the Nevada Constitution. If approved again in November 2018, the proposed constitutional amendment would require the Nevada Legislature to create, on or before July 2023, an open and competitive retail electric market that includes provisions to reduce costs to customers, protect against service disconnections and unfair practices and prohibit the granting of monopolies and exclusive franchises for the generation of electricity. The outcome of any customer choice initiative could have broad implications to the Nevada Utilities. The Governor issued an executive order establishing the Governor's Committee on Energy Choice in which the Nevada Utilities have representation. The Nevada Utilities have been engaged in the legislative process before the Governor's committee and related proceedings before the PUCN and the legislature. In April 2018, the PUCN released a study on the potential effects of electricity deregulation on Nevada. In July 2018, the Governor's Committee on Energy Choice released a report of findings and recommendations to the Governor. The Nevada Utilities cannot assess or predict the outcome of the potential constitutional amendment or the financial impact, if any, at this time. The uncertainty created by the ballot initiative complicates both the short-term allocation of resources and long-term resource planning for the Nevada Utilities, including the ability to forecast load growth and the timing of resource additions. This uncertainty in planning is evidenced by a decision the PUCN issued denying Nevada Power's proposed purchase of the South Point Energy Center, citing the unknown outcomes of the Energy Choice Initiative as one of the factors considered in their decision.

Northern Powergrid Distribution Companies

OfgemThe Gas and Electricity Markets Authority through its office of gas and electric markets (known as "Ofgem") published its RIIO-2 framework consultation on March 7, 2018, marking the first milestone in the development of the price control arrangements that will apply to Northern Powergrid from April 2023. The consultation confirms that outputs and incentives will remain as central components of the regulatory model.Ofgem published its RIIO-2 framework decision on July 30, 2018. A significant part of the proposals relateframework relates to setting the allowed return on capital, where Ofgem has set out an early view of the allowed cost of equity which is no higher than 5% (plus inflation measuredcalculated using the Consumer Prices Index including owner occupiers' housing costs as the measure of UK inflation rather than the currently used retail price index).

BHE Pipeline Group

In July 2018, the FERC issued a final rule adopting procedures for determining which natural gas pipelines may be collecting unjust and unreasonable rates in light of the reduction in the federal corporate tax rate from 2017 Tax Reform. Pursuant to the final rule, in October 2018, Northern Natural Gas filed an informational filing on FERC Form No. 501-G and a Statement Demonstrating Why No Rate Adjustment is Necessary. Likewise, in October 2018, Kern River filed an informational filing on FERC Form No. 501-G and a Statement Explaining Why No Rate Adjustment is Necessary, along with a Tax Reform Credit Rate Settlement in a companion docket. Kern River's Tax Reform Credit Rate Settlement offered an 11% rate credit against the Maximum Base Tariff Rates for firm service and any one-part rate that includes fixed costs. The Tax Reform Credit Rate Settlement is subject to approval by FERC. Responses to Northern Natural Gas' and Kern River's FERC Form Nos. 501-G filings and Kern River's Tax Reform Credit Rate Settlement were due October 23, 2018 and both Northern Natural Gas and Kern River have responded to all issues raised. The FERC's evaluation of Northern Natural Gas' and Kern River's filings will occur thereafter and the impact of the FERC's action, if any, would be prospective.

ALP

2019-2021 General Tariff Application

In August 2018, ALP filed its 2019-2021 general tariff application ("GTA") with the AUC, delivering on the first three years of its commitment to keep rates lower or flat for customers for the next five years. The three-year application achieves flat tariffs by keeping operating and maintenance expenses flat, with the exception of salaries and wages and software licensing fees, transitioning to a new salvage recovery approach and continuing the use of the flow-through income tax method. In addition, similar to the refund approved by the AUC for the 2017-2018 GTA of C$31 million, ALP proposes to provide a further tariff reduction over the three years by refunding previously collected accumulated depreciation surplus of an additional C$31 million. The application requests the approval of revenue requirements of C$885 million, C$887 million and C$889 million for 2019, 2020 and 2021 respectively, which are lower than the approved 2018 revenue requirement of C$904 million. The forecast revenue requirement is based on an 8.5% return on equity and 37% deemed equity approved by the AUC for 2019 and 2020 and assumes the same for 2021 as placeholders.



2018 Generic Cost of Capital Proceeding

In July 2017, the AUC denied the utilities' request that the interim determinations of 8.5% return on equity and deemed capital structures for 2018 be made final, by stating that it is not prepared to finalize 2018 values in the absence of an evidentiary process and its intention to issue the generic cost of capital decision for 2018, 2019 and 2020 by the end of 2018 to reduce regulatory lag. The AUC also confirmed the process timelines with an oral hearing scheduled for March 2018.

In October 2017, ALP's expert witness evidence and company evidence was submitted recommending a range of 9% to 10.75% return on equity, on a recommended equity ratio of 40%. ALP also filed company evidence that outlined increased uncertainties in the Alberta utility regulatory environment. In January 2018, the Consumers' Coalition of Alberta, the Utilities Consumer Advocate and the City of Calgary filed intervenor evidence. The return on equity recommended by the intervenors ranges from 6.3% to 7.75%. The equity ratio recommended by the intervenors for ALP ranges from 35% to 37%.

In March 2018, an oral hearing was held and a decision regardingin August 2018, the AUC issued Decision 22570-D01-2018 on the 2018 generic costGeneric Cost of capitalCapital proceeding is expected later in 2018.approving ALP's return on equity at 8.5% with a 37% equity ratio for 2018, 2019 and 2020.

Deferral Account Reconciliation Application

In April 2017, ALP filed its application with the AUC with respect to ALP's 2014 projects and deferral accounts and specific 2015 projects. The application includesincluded approximately C$2.0 billion in net capital additions. In June 2017, the AUC ruled that the scope of the deferral account proceeding would not be extended to consider the utilization of assets for which final cost approval is sought. However, the AUC will initiate a separate proceeding to address the issue of transmission asset utilization and how the corporate and property law principles applied in the Utility Asset Disposition ("UAD") decision may relate.

In December 2017, ALP amended its application to include the remaining capital projects completed in 2015. The amended 2014 and 2015 deferral account reconciliation application includes 110 completed projects with total gross capital additions, excluding AFUDC, of C$3.8 billion. An oral hearing was held in September 2018 after the completion of an extensive information request process earlier in the year. Following written arguments in October 2018, a decision is expected in late 2018 or early 2019.



Environmental Laws and Regulations

Each Registrant is subject to federal, state, local and foreign laws and regulations regarding air and water quality, RPS, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact each Registrant's current and future operations. In addition to imposing continuing compliance obligations, these laws and regulations provide regulators with the authority to levy substantial penalties for noncompliance, including fines, injunctive relief and other sanctions. These laws and regulations are administered by various federal state, local and international agencies. Each Registrant believes it is in material compliance with all applicable laws and regulations, although many laws and regulations are subject to interpretation that may ultimately be resolved by the courts. Refer to "Liquidity and Capital Resources" of each respective Registrant in Part I, Item 2 of this Form 10-Q for discussion of each Registrant's forecast environmental-related capital expenditures. The discussion below contains material developments to those matters disclosed in Item 1 of each Registrant's Annual Report on Form 10-K for the year ended December 31, 2017,, and new environmental matters occurring in 2018.

Clean Air Act Regulations

The Clean Air Act is a federal law administered by the EPA that provides a framework for protecting and improving the nation's air quality and controlling sources of air emissions. The implementation of new standards is generally outlined in SIPs, which are a collection of regulations, programs and policies to be followed. SIPs vary by state and are subject to public hearings and EPA approval. Some states may adopt additional or more stringent requirements than those implemented by the EPA. The major Clean Air Act programs most directly affecting the Registrants' operations are described below.

Regional Haze

The EPA's Regional Haze Rule, finalized in 1999, requires states to develop and implement plans to improve visibility in designated federally protected areas ("Class I areas"). Some of PacifiCorp's coal-fueled generating facilities in Utah, Wyoming, Arizona and Colorado and certain of Nevada Power's and Sierra Pacific's fossil-fueled generating facilities are subject to the Clean Air Visibility Rules. In accordance with the federal requirements, states are required to submit SIPs that address emissions from sources subject to best available retrofit technology ("BART") requirements and demonstrate progress towards achieving natural visibility requirements in Class I areas by 2064.



The state of Colorado regional haze SIP requires selective catalytic reduction ("SCR") controls at Craig Unit 2 and Hayden Units 1 and 2, in which PacifiCorp has ownership interests. Each of those regional haze compliance projects are either already in service or currently being constructed. In addition, in February 2015, the state of Colorado finalized an amendment to its regional haze SIP relating to Craig Unit 1, in which PacifiCorp has an ownership interest, to require the installation of SCR controls by 2021. In September 2016, the owners of Craig Units 1 and 2 reached an agreement with state and federal agencies and certain environmental groups that were parties to the previous settlement requiring SCR controls to retire Unit 1 by December 31, 2025, in lieu of SCR controls installation, or alternatively to remove the unit from coal-fueled service by August 31, 2021 with an option to convert the unit to natural gas by August 31, 2023, in lieu of SCR controls installation. The terms of the agreement were approved by the Colorado Air Quality Board in December 2016. The terms of the agreement were incorporated into an amended Colorado regional haze SIP in 2017 and were submitted to the EPA for its review and approval. The EPA's approval of the amended Colorado regional haze SIP was published in the Federal Register July 5, 2018, with an effective date of August 6, 2018. Until the EPA takes final action in each state and decisions have been made in the pending appeals, PacifiCorp, cannot fully determine the impacts of the Regional Haze Rule on its respective generating facilities.

Climate Change

In December 2015, an international agreement was negotiated by 195 nations to create a universal framework for coordinated action on climate change in what is referred to as the Paris Agreement. The Paris Agreement reaffirms the goal of limiting global temperature increase well below 2 degrees Celsius, while urging efforts to limit the increase to 1.5 degrees Celsius; establishes commitments by all parties to make nationally determined contributions and pursue domestic measures aimed at achieving the commitments; commits all countries to submit emissions inventories and report regularly on their emissions and progress made in implementing and achieving their nationally determined commitments; and commits all countries to submit new commitments every five years, with the expectation that the commitments will get more aggressive. In the context of the Paris Agreement, the United States agreed to reduce greenhouse gas emissions 26% to 28% by 2025 from 2005 levels. After more than 55 countries representing more than 55% of global greenhouse gas emissions submitted their ratification documents, the Paris Agreement became effective November 4, 2016. Under the terms of the Paris Agreement, ratifying countries are bound for a three-year period and must provide one-year's notice of their intent to withdraw. On June 1, 2017, President Trump announced the United States would withdraw from the Paris Agreement. Under the terms of the agreement, the withdrawal would be effective in November 2020. The cornerstone of the United States' commitment was the Clean Power Plan which was finalized by the EPA in 2015 but has since been proposed for repeal by the EPA.

GHG Performance Standards

Under the Clean Air Act, the EPA may establish emissions standards that reflect the degree of emissions reductions achievable through the best technology that has been demonstrated, taking into consideration the cost of achieving those reductions and any non-air quality health and environmental impact and energy requirements. On August 3, 2015, the EPA issued final new source performance standards, establishing a standard of 1,000 pounds of carbon dioxide per MWh for large natural gas-fueled generating facilities and 1,400 pounds of carbon dioxide per MWh for new coal-fueled generating facilities with the "Best System of Emission Reduction" reflecting highly efficient supercritical pulverized coal facilities with partial carbon capture and sequestration or integrated gasification combined-cycle units that are co-fired with natural gas or pre-combustion slipstream capture of carbon dioxide. The new source performance standards were appealed to the D.C. Circuit and oral argument was scheduled for April 17, 2017. However, oral argument was deferred and the court held the case in abeyance for an indefinite period of time. Until such time as the EPA undertakes further action to reconsider the new source performance standards or the court takes action, any new fossil-fueled generating facilities constructed by the relevant Registrants will be required to meet the GHG new source performance standards.    



Clean Power Plan

In June 2014, the EPA released proposed regulations to address GHG emissions from existing fossil-fueled generating facilities, referred to as the Clean Power Plan, under Section 111(d) of the Clean Air Act. The EPA's proposal calculated state-specific emission rate targets to be achieved based on the "Best System of Emission Reduction." In August 2015, the final Clean Power Plan was released, which established the Best System of Emission Reduction as including: (a) heat rate improvements; (b) increased utilization of existing combined-cycle natural gas-fueled generating facilities; and (c) increased deployment of new and incremental non-carbon generation placed in-service after 2012. The compliance period would have begun in 2022, with three interim periods of compliance and with the final goal to be achieved by 2030 and was expected to reduce carbon dioxide emissions in the power sector to 32% below 2005 levels by 2030. On February 9, 2016, the United States Supreme Court ordered that the EPA's emission guidelines for existing sources be stayed pending the disposition of the challenges to the rule in the D.C. Circuit and any action on a writ of certiorari before the U.S. Supreme Court. Oral argument was heard before the D.C. Circuit on September 27, 2016. The court has not yet issued its decision. On October 10, 2017, the EPA issued a proposal to repeal the Clean Power Plan and the EPA will taketook comments on the proposed repeal until April 26, 2018. In addition, the EPA published in the Federal Register an Advance Notice of Proposed Rulemaking on December 28, 2017, seeking public input on, without committing to, a potential replacement rule. The public comment period for the Advance Notice of Proposed Rulemaking concluded February 26, 2018. The full impacts ofOn August 21, 2018, the EPA's recent efforts to repealEPA proposed the Affordable Clean Energy rule, which would replace the Clean Power Plan arePlan. The Affordable Clean Energy rule would determine that the best system of emissions reduction for existing coal-fueled power plants is heat rate improvements and proposes a set of candidate technologies and measures that could improve heat rates. The EPA did not expectedpropose to set a specific numerical standard of performance for all affected units. Instead, states would be required to evaluate the candidate technologies and measures to establish standards of performance on a unit-specific basis, setting a standard of performance for each affected unit, measured in terms of pounds of carbon dioxide per megawatt hour. Measures taken to meet the standards of performance must be achieved at the source itself. Under the proposed rule, states would have three years from rule finalization to submit a material impactplan to the EPA, which would have one year to determine the approvability of the plan. If a state does not submit a plan or a submitted plan is not satisfactory, the EPA would have two years to develop a federal plan. Comments on the Registrants.proposal were due October 31, 2018. Until the proposed rule is finalized and state plans are developed, the full impacts on the Registrants cannot be determined. However, PacifiCorp, MidAmerican Energy, Nevada Power and Sierra Pacific have historically pursued cost-effective projects, including plant efficiency improvements, increased diversification of their generating fleets to include deployment of renewable and lower carbon generating resources, and advanced customer energy efficiency programs.

GHG Litigation

Each Registrant closely monitors ongoing environmental litigation applicable to its respective operations. Numerous lawsuits have been unsuccessfully pursued against the industry that attempt to link GHG emissions to public or private harm. The lower courts initially refrained from adjudicating the cases under the "political question" doctrine, because of their inherently political nature. These cases have typically been appealed to federal appellate courts and, in certain circumstances, to the United States Supreme Court. In the U.S. Supreme Court's 2011 decision in the case of American Electric Power Co., Inc., et al. v. Connecticut et al., the court addressed the question of whether federal common law nuisance claims could be maintained against certain electric power companies' for their GHG emissions and require the setting of an emissions cap for the emitters. The court held that the Clean Air Act and the EPA actions it authorizes displace any federal common law right to seek abatement of carbon dioxide emissions from fossil-fuel-fired power plants. Recent efforts by the EPA to repeal the Clean Power Plan could increase the filing of common law nuisance lawsuits against emitters of GHG. Adverse rulings in GHG-related cases could result in increased or changed regulations and could increase costs for GHG emitters, including the Registrants' generating facilities. While the Registrants are not a party to pending climate-related lawsuits, there are several suits pending in federal and state courts related to product liability, public nuisance, consumer protection and trespass cases against certain fossil fuel companies, as well as a case brought under the public trust doctrine against several federal government entities and officials. The GHG rules, changes to those rules, and the Registrants' compliance requirements are subject to potential outcomes from proceedings and litigation challenging the rules.

Coal Combustion Byproduct Disposal

In May 2010, the EPA released a proposed rule to regulate the management and disposal of coal combustion byproducts under the RCRA. The final rule was released by the EPA on December 19, 2014, was published in the Federal Register on April 17, 2015 and was effective on October 19, 2015. The final rule regulates coal combustion byproducts as non-hazardous waste under RCRA Subtitle D and establishes minimum nationwide standards for the disposal of coal combustion residuals. Under the final rule, surface impoundments and landfills utilized for coal combustion byproducts may need to be closed unless they can meet the more stringent regulatory requirements. The final rule requires regulated entities to post annual groundwater monitoring and corrective action reports. The first of these reports were posted to the respective Registrant's coal combustion rule compliance data and information websites prior to March 2, 2018. Based on the results in those reports, additional monitoring and action may be required under the rule.



On March 15, 2018, the EPA issued a proposal to address provisions of the final coal combustion rule that were remanded back to the agency on June 14, 2016, by the D.C. Circuit. In addition, theThe proposal includes provisionincluded provisions that establish alternative performance standards for owners and operators of coal combustion residuals units located in states that have approved permit programs or are otherwise subject to oversight through a permit program administered by the EPA. The EPA published the first phase of the coal combustion rule amendments on July 30, 2018, with an effective date of August 28, 2018. Additional substantive revisions to the rule are expected to be finalized by the EPA by December 2019 but have not yet been released for public comment period closes April 30, 2018.comment. If adopted, certain elements of the proposal have the potential to reduce costs of compliance. However, untilThe U.S. Court of Appeals for the D.C. Circuit issued a decision August 21, 2018, vacating several elements of the rule, including closure provisions for unlined surface impoundments, and finding that the Resource Conservation and Recovery Act provides the EPA authority to regulate inactive surface impoundments at inactive facilities. The court's order was effective October 15, 2018, and as a result, the EPA will need to undertake additional rulemaking to implement the Court's order. Until such time as the proposaladditional rulemaking is final, the impacts on the Registrants cannot be determined.

At the time the rule was published in April 2015, PacifiCorp operated 18 surface impoundments and seven landfills that contained coal combustion byproducts. Prior to the effective date of the rule in October 2015, nine surface impoundments and three landfills were either closed or repurposed to no longer receive coal combustion byproducts and hence are not subject to the final rule. As PacifiCorp proceeded to implement the final coal combustion rule, it was determined that two surface impoundments located at the Dave Johnston Generating Station were hydraulically connected and effectively constitute a single impoundment. In November 2017,A total of eight existing surface impoundments, plus a new surface impoundment was placed into service in November 2017 at the Naughton Generating Station.Station, and four active landfills remain subject to the final rule. Three of the surface impoundments are inactive and undergoing closure. At the time the rule was published in April 2015, MidAmerican Energy owned or operated nine surface impoundments and four landfills that containcontained coal combustion byproducts. Prior to the effective date of the rule in October 2015, MidAmerican Energy closed or repurposed six surface impoundments to no longer receive coal combustion byproducts. Five of thesetwo surface impoundments were closed on or beforeand are not subject to the rule. Three surface impoundments were closed in December 21, 2017, and the sixth isremaining four are undergoing closure. Two landfills are lined and remain active and subject to the final rule. Two landfills are unlined and will commence closure by December 2018 and April 2019, respectively. At the time the rule was published in April 2015, the Nevada Utilities operated ten evaporative surface impoundments and two landfills that contained coal combustion byproducts. Prior to the effective date of the rule in October 2015, the Nevada Utilities closed four of theremoved eight surface impoundments four impoundments discontinued receipt of coal combustion byproducts making them inactivefrom service and twocommenced closure. Two surface impoundments remain active and subject to the final rule. The two landfills remain active and subject to the final rule. Refer to Note 13 of the Notes to Consolidated Financial Statements of Berkshire Hathaway Energy in Item 8 of this Form 10-K and Note 10 of the Notes to Consolidated Financial Statements of PacifiCorp in Item 8 of thisthe Form 10-K for the year ended December 31, 2017 for discussion of the impacts on asset retirement obligations as a result of the final rule.



Multiple parties filed challenges over various aspects of the final rule in the D.C. Circuit in 2015, resulting in settlement of some of the issues and subsequent regulatory action by the EPA, including subjecting inactive surface impoundments to regulation. On September 13, 2017, EPA Administrator Pruitt issued a letter to parties petitioning for administrative reconsideration of certain aspects of the coal combustion byproducts rule concluding it was appropriate and in the public interest to reconsider the provisions of the final rule addressed in the petitions. On September 27, 2017, the D.C. Circuit issued an order to the EPA requiring the agency to identify provisions of the rule that the agency intended to reconsider. The EPA submitted its list of potential issues to be reconsidered on November 15, 2017 and oral argument was held by the D.C. Circuit November 20, 2017 over certain portions of the final rule. The court has not yet issued a decision on the issues presented in the oral arguments. Separately, on August 10, 2017, the EPA issued proposed permitting guidance on how states' coal combustion residuals permit programs should comply with the requirements of the final rule as authorized under the December 2016 Water Infrastructure Improvements for the Nation Act. Utilizing that guidance, the state of Oklahoma submitted an application to the EPA for approval of its state program and, on January 16,June 28, 2018, the EPA's approval of the application was published in the Federal Register. Environmental groups, including Waterkeeper Alliance and the Sierra Club, filed suit in the U.S. District Court for the District of Columbia on September 26, 2018, alleging that the EPA proposedunlawfully approved Oklahoma's permit program. This suit also incorporates claims first identified in a July 26, 2018 notice of intent to approvesue that alleged the application.EPA failed to perform nondiscretionary duties related to the development and publication of minimum guidelines for public participation in the approval of state permit programs for coal combustion residuals. To date, none of the states in which the Registrants operate has submitted an application for approval of state permitting authority. The state of Utah adopted the federal final rule in September 2016, which required two landfills to submit permit applications by March 2017. It is anticipated that the state of Utah will submit an application for approval of its coal combustion residuals permit program prior to the end of 2018.2019.



Notwithstanding the status of the final coal combustion residuals rule, citizens' suits have been filed against regulated entities seeking judicial relief for contamination alleged to have been caused by releases of coal combustion byproducts. Some of these cases have been successful in imposing liability upon companies if coal combustion byproducts contaminate groundwater that is ultimately released or connected to surface water. In addition, actions have been filed against regulated entities seeking to require that surface impoundments containing coal combustion residuals be subject to closure by removal rather than being allowed to effectuate closure in place as provided under the final rule. The Registrants are not a party to these lawsuits and until they are resolved, the Registrants cannot predict the impact on overall compliance obligations.

New Accounting Pronouncements

For a discussion of new accounting pronouncements affecting the Company, refer to Note 2 of Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.

Critical Accounting Estimates

Certain accounting measurements require management to make estimates and judgments concerning transactions that will be settled several years in the future. Amounts recognized on the Consolidated Financial Statements based on such estimates involve numerous assumptions subject to varying and potentially significant degrees of judgment and uncertainty and will likely change in the future as additional information becomes available. Estimates are used for, but not limited to, the accounting for the effects of certain types of regulation, derivatives, impairment of goodwill and long-lived assets, pension and other postretirement benefits, income taxes and revenue recognition - unbilled revenue. For additional discussion of the Company's critical accounting estimates, see Item 7 of the Company's Annual Report on Form 10-K for the year ended December 31, 2017. There have been no significant changes in the Company's assumptions regarding critical accounting estimates since December 31, 2017.



PacifiCorp and its subsidiaries
Consolidated Financial Section



PART I
Item 1.Financial Statements


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Shareholders of PacifiCorp

Results of Review of Interim Financial Information
We have reviewed the accompanying consolidated balance sheet of PacifiCorp and subsidiaries ("PacifiCorp") as of March 31,September 30, 2018, the related consolidated statements of operations for the three-month and nine-month periods ended September 30, 2018 and 2017, of changes in shareholders’shareholders' equity and of cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.
 
We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of PacifiCorp as of December 31, 2017, and the related consolidated statements of operations, comprehensive income, changes in shareholders’shareholders' equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results
This interim financial information is the responsibility of the Company'sPacifiCorp's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the CompanyPacifiCorp in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ Deloitte & Touche LLP

 
Portland, Oregon
May 7,November 2, 2018



PACIFICORP AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Amounts in millions)

 As of As of
 March 31, December 31, September 30, December 31,
 2018 2017 2018 2017
ASSETS
Current assets:        
Cash and cash equivalents $17
 $14
 $308
 $14
Accounts receivable, net 630
 684
 761
 684
Income taxes receivable 17
 59
Inventories 445
 433
 429
 433
Regulatory assets 34
 31
Prepaid expenses 66
 73
 59
 73
Other current assets 28
 21
 55
 111
Total current assets 1,237
 1,315
 1,612
 1,315
        
Property, plant and equipment, net 19,190
 19,203
 19,338
 19,203
Regulatory assets 1,068
 1,030
 1,028
 1,030
Other assets 330
 372
 358
 372
        
Total assets $21,825
 $21,920
 $22,336
 $21,920

The accompanying notes are an integral part of these consolidated financial statements.


PACIFICORP AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited) (continued)
(Amounts in millions)

 As of As of
 March 31, December 31, September 30, December 31,
 2018 2017 2018 2017
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:        
Accounts payable $376
 $453
 $438
 $453
Income taxes payable 10
 
Accrued interest 106
 115
Accrued property, income and other taxes 219
 66
Accrued employee expenses 112
 70
 126
 70
Accrued interest 106
 115
Accrued property and other taxes 96
 66
Short-term debt 124
 80
 
 80
Current portion of long-term debt and capital lease obligations 851
 588
 352
 588
Regulatory liabilities 80
 75
Other current liabilities 178
 170
 245
 245
Total current liabilities 1,933
 1,617
 1,486
 1,617
        
Long-term debt and capital lease obligations 6,682
 6,437
Regulatory liabilities 3,055
 2,996
 3,151
 2,996
Long-term debt and capital lease obligations 6,087
 6,437
Deferred income taxes 2,565
 2,582
 2,560
 2,582
Other long-term liabilities 732
 733
 700
 733
Total liabilities 14,372
 14,365
 14,579
 14,365
        
Commitments and contingencies (Note 11)        
        
Shareholders' equity:        
Preferred stock 2
 2
 2
 2
Common stock - 750 shares authorized, no par value, 357 shares issued and outstanding 
 
 
 
Additional paid-in capital 4,479
 4,479
 4,479
 4,479
Retained earnings 2,987
 3,089
 3,291
 3,089
Accumulated other comprehensive loss, net (15) (15) (15) (15)
Total shareholders' equity 7,453
 7,555
 7,757
 7,555
        
Total liabilities and shareholders' equity $21,825
 $21,920
 $22,336
 $21,920

The accompanying notes are an integral part of these consolidated financial statements.



PACIFICORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 2017 2018 2017 2018 2017
           
Operating revenue$1,184
 $1,281
 $1,369
 $1,430
 $3,746
 $3,956
   
  
      
Operating costs and expenses:   
Energy costs433
 441
Operating expenses:        
Cost of fuel and energy 465
 465
 1,300
 1,305
Operations and maintenance250
 254
 266
 254
 777
 771
Depreciation and amortization202
 196
 203
 200
 602
 598
Taxes, other than income taxes52
 51
Total operating costs and expenses937
 942
Property and other taxes 49
 50
 150
 149
Total operating expenses 983
 969
 2,829
 2,823
   
  
      
Operating income247
 339
 386
 461
 917
 1,133
   
  
      
Other income (expense):   
  
      
Interest expense(96) (95) (96) (95) (288) (285)
Allowance for borrowed funds4
 4
 5
 4
 13
 12
Allowance for equity funds7
 7
 9
 7
 24
 21
Other, net11
 9
 14
 12
 36
 30
Total other income (expense)(74) (75) (68) (72) (215) (222)
   
  
      
Income before income tax expense173
 264
 318
 389
 702
 911
Income tax expense25
 85
 48
 126
 100
 294
Net income$148
 $179
 $270
 $263
 $602
 $617

The accompanying notes are an integral part of these consolidated financial statements.



PACIFICORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)
(Amounts in millions)

         Accumulated           Accumulated  
     Additional   Other Total     Additional   Other Total
 Preferred Common Paid-in Retained Comprehensive Shareholders' Preferred Common Paid-in Retained Comprehensive Shareholders'
 Stock Stock Capital Earnings Loss, Net Equity Stock Stock Capital Earnings Loss, Net Equity
                        
Balance, December 31, 2016 $2
 $
 $4,479
 $2,921
 $(12) $7,390
 $2
 $
 $4,479
 $2,921
 $(12) $7,390
Net income 
 
 
 179
 
 179
 
 
 
 617
 
 617
Common stock dividends declared 
 
 
 (100) 
 (100) 
 
 
 (500) 
 (500)
Balance, March 31, 2017 $2
 $
 $4,479
 $3,000
 $(12) $7,469
Balance, September 30, 2017 $2
 $
 $4,479
 $3,038
 $(12) $7,507
  
  
  
  
  
  
  
  
  
  
  
  
Balance, December 31, 2017 $2
 $
 $4,479
 $3,089
 $(15) $7,555
 $2
 $
 $4,479
 $3,089
 $(15) $7,555
Net income 
 
 
 148
 
 148
 
 
 
 602
 
 602
Common stock dividends declared 
 
 
 (250) 
 (250) 
 
 
 (400) 
 (400)
Balance, March 31, 2018 $2
 $
 $4,479
 $2,987
 $(15) $7,453
Balance, September 30, 2018 $2
 $
 $4,479
 $3,291
 $(15) $7,757

The accompanying notes are an integral part of these consolidated financial statements.



PACIFICORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$148
 $179
$602
 $617
Adjustments to reconcile net income to net cash flows from operating activities:      
Depreciation and amortization202
 196
602
 598
Allowance for equity funds(7) (7)(24) (21)
Changes in regulatory assets and liabilities127
 21
Deferred income taxes and amortization of investment tax credits(28) (5)(53) 14
Changes in regulatory assets and liabilities60
 19
Other, net1
 
(1) 1
Changes in other operating assets and liabilities:   
   
Accounts receivable and other assets90
 115
(31) 42
Inventories4
 (1)
Derivative collateral, net(3) (7)4
 (4)
Inventories(12) 2
Prepaid expenses7
 6
10
 9
Income taxes52
 97
Accrued property, income and other taxes, net204
 145
Accounts payable and other liabilities23
 (7)36
 40
Net cash flows from operating activities533
 588
1,480
 1,461
   
   
Cash flows from investing activities:   
   
Capital expenditures(236) (178)(713) (553)
Other, net(1) 
2
 5
Net cash flows from investing activities(237) (178)(711) (548)
   
   
Cash flows from financing activities:   
   
Proceeds from long-term debt, net593
 
Repayments of long-term debt and capital lease obligations(87) (51)(588) (54)
Net proceeds from (repayments of) short-term debt44
 (262)
Common stock dividends(250) (100)
Net repayments of short-term debt(80) (270)
Dividends paid(400) (500)
Other, net
 (3)
Net cash flows from financing activities(293) (413)(475) (827)
   
   
Net change in cash and cash equivalents and restricted cash and cash equivalents3
 (3)294
 86
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period29
 33
29
 33
Cash and cash equivalents and restricted cash and cash equivalents at end of period$32
 $30
$323
 $119
 
The accompanying notes are an integral part of these consolidated financial statements.



PACIFICORP AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

(1)
(1)    General

PacifiCorp, which includes PacifiCorp and its subsidiaries, is a United States regulated electric utility company serving retail customers, including residential, commercial, industrial, irrigation and other customers in portions of Utah, Oregon, Wyoming, Washington, Idaho and California. PacifiCorp owns, or has interests in, a number of thermal, hydroelectric, wind-powered and geothermal generating facilities, as well as electric transmission and distribution assets. PacifiCorp also buys and sells electricity on the wholesale market with other utilities, energy marketing companies, financial institutions and other market participants. PacifiCorp is subject to comprehensive state and federal regulation. PacifiCorp's subsidiaries support its electric utility operations by providing coal mining services. PacifiCorp is an indirect subsidiary of Berkshire Hathaway Energy Company ("BHE"), a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHEand is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway").

The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of March 31,September 30, 2018 and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017 are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in PacifiCorp's Annual Report on Form 10-K for the year ended December 31, 2017 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in PacifiCorp's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)    New Accounting Pronouncements
(2)New Accounting Pronouncements

In February 2016,August 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-02,2018-14, which createsamends FASB Accounting Standards Codification ("ASC") Topic 715, "Compensation - Retirement Benefits." The amendments in this guidance modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The amendments in this guidance remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures and add disclosure requirements identified as relevant. The updated disclosure requirements make a number of changes to improve the effectiveness of disclosures in the notes to the financial statements. This guidance is effective for annual reporting periods beginning after December 15, 2020, with early adoption permitted, and is required to be adopted retrospectively. The adoption of ASU No. 2018-14 will not have a material impact on PacifiCorp's Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.



In February 2016, the FASB issued ASU No. 2016-02, which creates FASB ASC Topic 842, "Leases" and supersedes Topic 840 "Leases." This guidance increases transparency and comparability among entities by recording lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. In JanuaryDuring 2018, the FASB issued several ASUs that clarified the implementation guidance and provided optional transition practical expedients for ASU No. 2016-02 including ASU No. 2018-01 that provides for an optional transition practical expedient allowingallows companies to not have to evaluateforgo evaluating existing land easements if they were not previously accounted for under ASC Topic 840, "Leases.""Leases" and ASU No. 2018-11 that allows companies to apply the new guidance at the adoption date with the cumulative-effect adjustment to the opening balance of retained earnings recognized in the period of adoption. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach. PacifiCorp plans to adopt this guidance effective January 1, 2019 and is currently in the process of evaluating the impact on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.

(3)Cash and Cash Equivalents and Restricted Cash and Cash Equivalents
(3)    
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. PacifiCorp adopted this guidance January 1, 2018.



Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Cash and cash equivalents$17
 $14
$308
 $14
Restricted cash included in other current assets13
 13
13
 13
Restricted cash included in other assets2
 2
2
 2
Total cash and cash equivalents and restricted cash and cash equivalents$32
 $29
$323
 $29

Equity Method Investments

In August 2016, the FASB issued ASU No. 2016-15, which amends FASB ASC Topic 230, "Statement of Cash Flows." The amendments in this guidance address the classification of eight specific cash flow issues within the statement of cash flows with the objective of reducing the existing diversity in practice. PacifiCorp adopted this guidance retrospectively effective January 1, 2018 which resulted in the reclassification of certain cash distributions received from equity method investees of $26 million previously recognized within investing cash flows to operating cash flows for the nine-month period ended September 30, 2017.


(4)    Property, Plant and Equipment, Net
(4)Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
  As of  As of
  March 31, December 31,  September 30, December 31,
Depreciable Life 2018 2017Depreciable Life 2018 2017
Utility Plant:        
Utility plant in-service5-75 years $27,947
 $27,880
5-75 years $28,201
 $27,880
Accumulated depreciation and amortization (9,503) (9,366) (9,750) (9,366)
Utility plant in-service, net 18,444
 18,514
 18,451
 18,514
Other non-regulated, net of accumulated depreciation and amortization45 years 11
 11
45 years 10
 11
Plant, net 18,455
 18,525
 18,461
 18,525
Construction work-in-progress 735
 678
 877
 678
Property, plant and equipment, net $19,190
 $19,203
 $19,338
 $19,203

(5)    Regulatory Matters
Regulatory Matters

Retail Regulated Rates

In December 2017, theThe Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform") was signed into law, reducingenacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. Accumulated deferredPacifiCorp has agreed to defer the impact of the tax law change with each of its state regulatory bodies. PacifiCorp proposed reducing customer rates for a portion of the lower annual income tax balances were re-measured atexpense resulting from the 21% rate,decrease in federal tax rates and deferring the remainder to offset other costs as approved by the regulatory liabilities increased reflective of the probability of such balances being passed back to customers.bodies. In March 2018, PacifiCorp proposed 1% rate reductions in Utah, Wyoming and Idaho. PacifiCorp proposed the rate reductions to be effective May 1, 2018 in Utah, July 1, 2018 in Wyoming and June 1, 2018 in Idaho. In April 2018, the Utah Public Service Commission ("UPSC") ordered a rate reduction of $61 million, or 3.1%, effective May 1, 2018 through December 31, 2018, based on a preliminary estimate of the revenue requirement impact of 2017 Tax Reform. This credit will likely be adjusted effective January 1, 2019, whenIn October 2018, PacifiCorp filed an all-party settlement with the final rates are approvedUPSC that continues the current rate reduction of $61 million, with other benefits provided to customers through a combination of a reduction to thermal steam plant and deferral to offset costs in the next phase of the proceeding later in 2018. A procedural schedule is expected to be set by the Idaho Public Utilities Commission.general rate case. PacifiCorp filed a partial settlement with the Wyoming Public Service Commission on("WPSC") in April 11, 2018 that provides a rate reduction of approximately 3% beginning$23 million, or 3.3%, effective July 1, 2018 through June 30, 2019, with the remaining tax savings to be deferred with offsets to other costs. In June 2018, the WPSC approved the rate reduction on an interim basis. In May 2018, the Idaho Public Utilities Commission ("IPUC") approved an all-party settlement to implement a rate reduction of $6 million, or 2.2%, effective June 1, 2018 through May 31, 2019, to pass back a portion of the tax benefit. The credit may be adjusted following the next phase of the proceeding. In June 2018, PacifiCorp filed reports with the WPSC and IPUC with the calculation of the full impact of the tax law change on revenue requirements. These reports initiated the next phase of the proceedings in these states. The WPSC scheduled a hearing for January 2019. A hearing has not yet been scheduled in Idaho. As of March 31,September 30, 2018, $53 million was accrued for the estimated potential refund liability attributable to lower customer rates enabled by the benefits of tax reform effective January 1, 2018.was $112 million.

(6)    
(6)Recent Financing Transactions

Long-Term Debt

In July 2018, PacifiCorp issued $600 million of its 4.125% First Mortgage Bonds due 2049. PacifiCorp used a portion of the net proceeds to repay all of PacifiCorp's $500 million 5.65% First Mortgage Bonds due July 2018 and intends to use the remaining net proceeds to fund capital expenditures and for general corporate purposes.



Credit Facilities

In April 2018, PacifiCorp amended and restated, its existing $400 million unsecured credit facility expiring June 2020, increasing the lender commitment to $600 million, extending the expiration date to June 2021 and increasing from one to two, the available one-year extension options, subject to lender consent.

In April 2018, PacifiCorp amended and restated, its existing $600 million unsecured credit facility expiring June 2020, extending the expiration date to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.


(7)    Income Taxes
(7)Income Taxes

Tax Cuts and Jobs Act

2017 Tax Reform impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018 and limitations on bonus depreciation for utility property.

In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin ("SAB") 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. PacifiCorp has recorded the impacts of the 2017 Tax Reform and believes all the impacts to be complete with the exception of the interpretations of the bonus depreciation rules. PacifiCorp has determined the amounts recorded and the interpretations relating to this item to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. PacifiCorp believes its interpretations for bonus depreciation to be reasonable, however, as the guidance is clarified estimates may change. PacifiCorp recorded a current tax benefit and deferred tax expense of $21 million during the three-month period ended September 30, 2018 following clarified bonus depreciation guidance. As a result of 2017 Tax Reform and PacifiCorp's regulatory nature, PacifiCorp reduced the associated deferred income tax liabilities $8 million and increased regulatory liabilities by the same amount. The accounting is estimated towill be completed by December 2018. During the three-month period ended March 31, 2018, PacifiCorp did not make any revisions to its previous calculations.

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows:
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Federal statutory income tax rate21 % 35 %21 % 35 % 21 % 35 %
State income tax, net of federal income tax benefit4
 3
4
 3
 4
 3
Federal income tax credits(5) (5)(5) (5) (5) (5)
Effects of ratemaking(4) 1
(4) 1
 (4) 1
Other(2) (2)(1) (2) (2) (2)
Effective income tax rate14 % 32 %15 % 32 % 14 % 32 %

Income tax credits relate primarily to production tax credits earned by PacifiCorp’sPacifiCorp's wind-powered generating facilities. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service.

Berkshire Hathaway includes PacifiCorp in its United States federal income tax return. PacifiCorp's provision for income taxes has been computed on a stand-alone basis, and substantially all of its currently payable or receivable federal income taxes are remitted to or received from Berkshire Hathaway Energy Company. For the three-month periods ended March 31, 2018 and 2017, PacifiCorp did not receive or make any cash payments for federal income taxes from or to Berkshire Hathaway Energy Company.



(8)    Employee Benefit Plans
(8)Employee Benefit Plans

In March 2017, the FASB issued ASU No. 2017-07, which amends FASB ASC Topic 715, "Compensation - Retirement Benefits." The amendments in this guidance require that an employer disaggregate the service cost component from the other components of net benefit cost and report the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the statement of operations separately from the service cost component and outside the subtotal of operating income. Additionally, the guidance only allows the service cost component to be eligible for capitalization when applicable. PacifiCorp adopted this guidance January 1, 2018 prospectively for the capitalization of the service cost component in the Consolidated Balance Sheets and retrospectively for the presentation of the service cost component and the other components of net benefit cost in the Consolidated Statements of Operations utilizing the practical expedient to use the amounts previously disclosed in the Notes to Consolidated Financial Statements as the estimation basis for applying the retrospective presentation requirement. As a result, amounts other than the service cost for pension and other postretirement benefit plans for the three-month periodthree- and nine-month periods ended March 31,September 30, 2017 of $6 million and $17 million, respectively, have been reclassified to Other, net in the Consolidated Statements of Operations.

Net periodic benefit (credit) costcredit for the pension and other postretirement benefit plans included the following components (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Pension:          
Service cost$
 $

 
 
 
Interest cost11
 12
11
 12
 32
 37
Expected return on plan assets(18) (18)(18) (18) (54) (54)
Net amortization3
 4
3
 3
 10
 10
Net periodic benefit credit$(4) $(2)(4) (3) (12) (7)
          
Other postretirement:          
Service cost$
 $1

 1
 1
 2
Interest cost3
 3
3
 3
 9
 10
Expected return on plan assets(5) (6)(5) (5) (16) (16)
Net amortization(1) (1)(1) (1) (4) (4)
Net periodic benefit credit$(3) $(3)(3) (2) (10) (8)

Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Consolidated Statements of Operations. Employer contributions to the pension and other postretirement benefit plans are expected to be $4 million and $- million, respectively, during 2018. As of March 31,September 30, 2018, $1$3 million and $- million of contributions had been made to the pension and other postretirement benefit plans, respectively.

(9)    Risk Management and Hedging Activities
(9)Risk Management and Hedging Activities

PacifiCorp is exposed to the impact of market fluctuations in commodity prices and interest rates. PacifiCorp is principally exposed to electricity, natural gas, coal and fuel oil commodity price risk as it has an obligation to serve retail customer load in its regulated service territories. PacifiCorp's load and generating facilities represent substantial underlying commodity positions. Exposures to commodity prices consist mainly of variations in the price of fuel required to generate electricity and wholesale electricity that is purchased and sold. Commodity prices are subject to wide price swings as supply and demand are impacted by, among many other unpredictable items, weather, market liquidity, generating facility availability, customer usage, storage, and transmission and transportation constraints. Interest rate risk exists on variable-rate debt and future debt issuances. PacifiCorp does not engage in a material amount of proprietary trading activities.



PacifiCorp has established a risk management process that is designed to identify, assess, manage, mitigate, monitor and report each of the various types of risk involved in its business. To mitigate a portion of its commodity price risk, PacifiCorp uses commodity derivative contracts, which may include forwards, options, swaps and other agreements, to effectively secure future supply or sell future production generally at fixed prices. PacifiCorp manages its interest rate risk by limiting its exposure to variable interest rates primarily through the issuance of fixed-rate long-term debt and by monitoring market changes in interest rates. Additionally, PacifiCorp may from time to time enter into interest rate derivative contracts, such as interest rate swaps or locks, to mitigate PacifiCorp's exposure to interest rate risk. No interest rate derivatives were in place during the periods presented. PacifiCorp does not hedge all of its commodity price and interest rate risks, thereby exposing the unhedged portion to changes in market prices.

There have been no significant changes in PacifiCorp's accounting policies related to derivatives. Refer to Note 10 for additional information on derivative contracts.

The following table, which reflects master netting arrangements and excludes contracts that have been designated as normal under the normal purchases or normal sales exception afforded by GAAP, summarizes the fair value of PacifiCorp's derivative contracts, on a gross basis, and reconciles those amounts to the amounts presented on a net basis on the Consolidated Balance Sheets (in millions):
Other   Other Other  Other   Other Other  
Current Other Current Long-term  Current Other Current Long-term  
Assets Assets Liabilities Liabilities TotalAssets Assets Liabilities Liabilities Total
                  
As of March 31, 2018         
As of September 30, 2018         
Not designated as hedging contracts(1):
                  
Commodity assets$7
 $2
 $2
 $1
 $12
$10
 $4
 $6
 $
 $20
Commodity liabilities(3) 
 (45) (89) (137)(6) 2
 (47) (74) (125)
Total4
 2
 (43) (88) (125)4
 6
 (41) (74) (105)
 
  
  
  
  
 
  
  
  
  
Total derivatives4
 2
 (43) (88) (125)4
 6
 (41) (74) (105)
Cash collateral receivable
 
 19
 58
 77

 
 18
 52
 70
Total derivatives - net basis$4
 $2
 $(24) $(30) $(48)$4
 $6
 $(23) $(22) $(35)
                  
As of December 31, 2017                  
Not designated as hedging contracts(1):
                  
Commodity assets$11
 $1
 $1
 $
 $13
$11
 $1
 $1
 $
 $13
Commodity liabilities(3) 
 (32) (82) (117)(3) 
 (32) (82) (117)
Total8
 1
 (31) (82) (104)8
 1
 (31) (82) (104)
                  
Total derivatives8
 1
 (31) (82) (104)8
 1
 (31) (82) (104)
Cash collateral receivable
 
 17
 57
 74

 
 17
 57
 74
Total derivatives - net basis$8
 $1
 $(14) $(25) $(30)$8
 $1
 $(14) $(25) $(30)

(1)PacifiCorp's commodity derivatives are generally included in rates and as of March 31,September 30, 2018 and December 31, 2017, a regulatory asset of $122$102 million and $101 million, respectively, was recorded related to the net derivative liability of $125$105 million and $104 million, respectively.



The following table reconciles the beginning and ending balances of PacifiCorp's net regulatory assets and summarizes the pre-tax gains and losses on commodity derivative contracts recognized in net regulatory assets, as well as amounts reclassified to earnings (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Beginning balance$101
 $73
$116
 $95
 $101
 $73
Changes in fair value recognized in net regulatory assets28
 24
14
 6
 48
 36
Net gains reclassified to operating revenue7
 12
Net losses reclassified to energy costs(14) (6)
Net (losses) gains reclassified to operating revenue(36) (5) (30) 8
Net gains (losses) reclassified to cost of fuel and energy8
 1
 (17) (20)
Ending balance$122
 $103
$102
 $97
 $102
 $97

Derivative Contract Volumes

The following table summarizes the net notional amounts of outstanding commodity derivative contracts with fixed price terms that comprise the mark-to-market values as of (in millions):
Unit of March 31, December 31,Unit of September 30, December 31,
Measure 2018 2017Measure 2018 2017
        
Electricity (sales)Megawatt hours (6) (9)
Electricity salesMegawatt hours (7) (9)
Natural gas purchasesDecatherms 115
 113
Decatherms 115
 113
Fuel oil purchasesGallons 7
 
Gallons 2
 

Credit Risk

PacifiCorp is exposed to counterparty credit risk associated with wholesale energy supply and marketing activities with other utilities, energy marketing companies, financial institutions and other market participants. Credit risk may be concentrated to the extent PacifiCorp's counterparties have similar economic, industry or other characteristics and due to direct or indirect relationships among the counterparties. Before entering into a transaction, PacifiCorp analyzes the financial condition of each significant wholesale counterparty, establishes limits on the amount of unsecured credit to be extended to each counterparty and evaluates the appropriateness of unsecured credit limits on an ongoing basis. To further mitigate wholesale counterparty credit risk, PacifiCorp enters into netting and collateral arrangements that may include margining and cross-product netting agreements and obtains third-party guarantees, letters of credit and cash deposits. If required, PacifiCorp exercises rights under these arrangements, including calling on the counterparty's credit support arrangement.

Collateral and Contingent Features

In accordance with industry practice, certain wholesale derivative contracts contain credit support provisions that in part base certain collateral requirements on credit ratings for senior unsecured debt as reported by one or more of the three recognized credit rating agencies. These derivative contracts may either specifically provide bilateral rights to demand cash or other security if credit exposures on a net basis exceed specified rating-dependent threshold levels ("credit-risk-related contingent features") or provide the right for counterparties to demand "adequate assurance," or in some cases terminate the contract, in the event of a material adverse change in PacifiCorp's creditworthiness. These rights can vary by contract and by counterparty. As of March 31,September 30, 2018, PacifiCorp's credit ratings from the three recognized credit rating agencies were investment grade.

The aggregate fair value of PacifiCorp's derivative contracts in liability positions with specific credit-risk-related contingent features totaled $129$108 million and $110 million as of March 31,September 30, 2018 and December 31, 2017, respectively, for which PacifiCorp had posted collateral of $77$70 million and $74 million, respectively, in the form of cash deposits. If all credit-risk-related contingent features for derivative contracts in liability positions had been triggered as of March 31,September 30, 2018 and December 31, 2017, PacifiCorp would have been required to post $48$26 million and $34 million, respectively, of additional collateral. PacifiCorp's collateral requirements could fluctuate considerably due to market price volatility, changes in credit ratings, changes in legislation or regulation, or other factors.



(10)    Fair Value Measurements
(10)Fair Value Measurements

The carrying value of PacifiCorp's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. PacifiCorp has various financial assets and liabilities that are measured at fair value on the Consolidated Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows:

Level 1 Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that PacifiCorp has the ability to access at the measurement date.

Level 2 Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

Level 3 Unobservable inputs reflect PacifiCorp's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. PacifiCorp develops these inputs based on the best information available, including its own data.
 
The following table presents PacifiCorp's financial assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions):
 Input Levels for Fair Value Measurements     Input Levels for Fair Value Measurements    
 Level 1 Level 2 Level 3 
Other(1) 
 Total Level 1 Level 2 Level 3 
Other(1) 
 Total
As of March 31, 2018          
As of September 30, 2018          
Assets:                    
Commodity derivatives $
 $12
 $
 $(6) $6
 $
 $20
 $
 $(10) $10
Money market mutual funds(2)
 12
 
 
 
 12
 310
 
 
 
 310
Investment funds 24
 
 
 
 24
 26
 
 
 
 26
 $36
 $12
 $
 $(6) $42
 $336
 $20
 $
 $(10) $346
                    
Liabilities - Commodity derivatives $
 $(137) $
 $83
 $(54) $
 $(125) $
 $80
 $(45)
                    
As of December 31, 2017                    
Assets:                    
Commodity derivatives $
 $13
 $
 $(4) $9
 $
 $13
 $
 $(4) $9
Money market mutual funds(2)
 21
 
 
 
 21
 21
 
 
 
 21
Investment funds 21
 
 
 
 21
 21
 
 
 
 21
 $42
 $13
 $
 $(4) $51
 $42
 $13
 $
 $(4) $51
                    
Liabilities - Commodity derivatives $
 $(117) $
 $78
 $(39) $
 $(117) $
 $78
 $(39)

(1)Represents netting under master netting arrangements and a net cash collateral receivable of $77$70 million and $74 million as of March 31,September 30, 2018 and December 31, 2017, respectively.

(2)Amounts are included in cash and cash equivalents, other current assets and other assets on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.



Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which PacifiCorp transacts. When quoted prices for identical contracts are not available, PacifiCorp uses forward price curves. Forward price curves represent PacifiCorp's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. PacifiCorp bases its forward price curves upon market price quotations, when available, or internally developed and commercial models, with internal and external fundamental data inputs. Market price quotations are obtained from independent energy brokers, exchanges, direct communication with market participants and actual transactions executed by PacifiCorp. Market price quotations for certain major electricity and natural gas trading hubs are generally readily obtainable for the first sixthree years; therefore, PacifiCorp's forward price curves for those locations and periods reflect observable market quotes. Market price quotations for other electricity and natural gas trading hubs are not as readily obtainable for the first sixthree years. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, PacifiCorp uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The estimated fair value of these derivative contracts is a function of underlying forward commodity prices, interest rates, currency rates, related volatility, counterparty creditworthiness and duration of contracts. Refer to Note 9 for further discussion regarding PacifiCorp's risk management and hedging activities.

PacifiCorp's investments in money market mutual funds and investment funds are stated at fair value. When available, PacifiCorp uses a readily observable quoted market price or net asset value of an identical security in an active market to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics.

PacifiCorp's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of PacifiCorp's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of PacifiCorp's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of PacifiCorp's long-term debt (in millions):
  As of March 31, 2018 As of December 31, 2017
  Carrying Fair Carrying Fair
  Value Value Value Value
         
Long-term debt $6,919
 $8,007
 $7,005
 $8,370
  As of September 30, 2018 As of December 31, 2017
  Carrying Fair Carrying Fair
  Value Value Value Value
         
Long-term debt $7,014
 $7,862
 $7,005
 $8,370

(11)    
(11)Commitments and Contingencies

Commitments

During the nine-month period endedSeptember 30,2018, PacifiCorp entered into non-cancelable agreements through 2045 totaling $1.0 billion related to power purchase agreements to meet customer requests for renewable energy, $566 million related to agreements for repowering certain existing wind facilities in Wyoming, Washington and Oregon, and $273 million related to fuel supply contracts. The power purchase agreements are from facilities that have not yet achieved commercial operation. To the extent any of these facilities do not achieve commercial operation by contractually agreed upon dates, PacifiCorp has no obligation to the counterparty.

Legal Matters

PacifiCorp is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. PacifiCorp does not believe that such normal and routine litigation will have a material impact on its consolidated financial results.

Environmental Laws and Regulations

PacifiCorp is subject to federal, state and local laws and regulations regarding air and water quality, renewable portfolio standards, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact PacifiCorp's current and future operations. PacifiCorp believes it is in material compliance with all applicable laws and regulations.



Hydroelectric Relicensing

PacifiCorp's Klamath hydroelectric system is currently operating under annual licenses with the Federal Energy Regulatory Commission ("FERC"). In February 2010, PacifiCorp, the United States Department of the Interior, the United States Department of Commerce, the state of California, the state of Oregon and various other governmental and non-governmental settlement parties signed the Klamath Hydroelectric Settlement Agreement ("KHSA"). Among other things, the KHSA provided that thatthe United States Department of the Interior would conduct scientific and engineering studies to assess whether removal of the Klamath hydroelectric system's mainstem dams was in the public interest and would advance restoration of the Klamath Basin's salmonid fisheries. If it wasis determined that dam removal should proceed, dam removal would begin no earlier than 2020.



Congress failed to pass legislation needed to implement the original KHSA. OnIn April 6 2016, the principal parties to the KHSA (PacifiCorp, the states of California and Oregon and the United States Departments of the Interior and Commerce) executed an amendment to the KHSA. Consistent with the terms of the amended KHSA, onin September 23, 2016, PacifiCorp and the Klamath River Renewal Corporation ("KRRC"), a private, independent nonprofit 501(c)(3) organization formed by certain signatories of the amended KSHA, jointly filed an application with the FERC to transfer the license for the four mainstem Klamath River hydroelectric generating facilities from PacifiCorp to the KRRC. Also onin September 23, 2016, the KRRC filed an application with the FERC to surrender the license and decommission the same four facilities. The KRRC's license surrender application included a request for the FERC to refrain from acting on the surrender application until after the transfer of the license to the KRRC is effective. OnIn March 15, 2018, the FERC issued an order splitting the existing license for the Klamath Project into two licenses: the Klamath Project (P‑2082) contains East Side, West Side, Keno and Fall Creek developments; the new Lower Klamath Project (P‑14803) contains J.C. Boyle, Copco No. 1, Copco No. 2 and Iron Gate developments. In the same order, the FERC deferred consideration of the transfer of the license for the Lower Klamath facilities from PacifiCorp to the KRRC until some point in the future. PacifiCorp is currently the licensee for both the Klamath Project and Lower Klamath Project facilities and will retain ownership of the Klamath Project facilities after the approval and transfer of the Lower Klamath Project facilities. OnIn April 16, 2018, PacifiCorp filed a motion to stay the effective date of the license amendment until transfer is approved. In June 2018, the FERC granted PacifiCorp's motion to stay the effective date of the Lower Klamath Project license and all related compliance obligations, pending a Commission order on the license transfer. Meanwhile, the FERC continues to assess the KRRC's capacity to become a project licensee for purposes of dam removal.

Under the amended KHSA, PacifiCorp and its customers are protected from uncapped dam removal costs and liabilities. The KRRC must indemnify PacifiCorp from liabilities associated with dam removal. The amended KHSA also limits PacifiCorp's contribution to facilities removal costs to no more than $200 million, of which up to $184 million would be collected from PacifiCorp's Oregon customers with the remainder to be collected from PacifiCorp's California customers. California voters approved a water bond measure in November 2014 from which the state of California's contribution toward facilities removal costs are being drawn. In accordance with this bond measure, additional funding of up to $250 million for facilities removal costs was included in the California state budget in 2016, with the funding effective for at least five years. If facilities removal costs exceed the combined funding that will be available from PacifiCorp's Oregon and California customers and the state of California, sufficient funds would need to be provided by the KRRC or an entity other than PacifiCorp for removal to proceed.

If certain conditions in the amended KHSA are not satisfied and the license does not transfer to the KRRC, PacifiCorp will resume relicensing with the FERC.

Guarantees

PacifiCorp has entered into guarantees as part of the normal course of business and the sale of certain assets. These guarantees are not expected to have a material impact on PacifiCorp's consolidated financial results.


(12)    Revenue from Contracts with Customers
(12)Revenue from Contracts with Customers

Adoption

In May 2014, the FASB issued ASU No. 2014-09, which created FASB ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") and superseded ASC Topic 605, "Revenue Recognition." The guidance replaced industry-specific guidance and established a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue"). The core principle of the guidance is that an entity should recognize revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Following the issuance of ASU No. 2014-09, the FASB issued several ASUs that clarified the implementation guidance for ASU No. 2014-09 but did not change the core principle of the guidance. PacifiCorp adopted this guidance for all applicable contracts as of January 1, 2018 under a modified retrospective method. The adoption did not have a cumulative effect impact at the date of initial adoption.

Customer Revenue

PacifiCorp recognizes revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the CompanyPacifiCorp expects to be entitled in exchange for those goods or services. PacifiCorp records sales, franchise and excise taxes collected directly from customers and remitted directly to the taxing authorities on a net basis on the Consolidated Statements of Operations.



Substantially all of PacifiCorp's Customer Revenue is derived from tariff based sales arrangements approved by various regulatory bodies. These tariff based revenues are mainly comprised of energy, transmission and distribution and have performance obligations to deliver energy products and services to customers which are satisfied over time as energy is delivered or services are provided. Other revenue consists primarily of revenue recognized in accordance with ASC 815, "Derivatives and Hedging".Hedging."

Revenue recognized is equal to what PacifiCorp has the right to invoice as it corresponds directly with the value to the customer of PacifiCorp's performance to date and includes billed and unbilled amounts. As of March 31,September 30, 2018 and December 31, 2017, accounts receivable from contracts with customers, net of allowance for doubtful accounts was $552$673 million and $635 million, respectively, including unbilled revenue of $215$229 million and $255 million, respectively, and was included in accounts receivables, net on the Consolidated Balance Sheets. Payments for amounts billed are generally due from the customer within 30 days of billing. Rates charged for energy products and services are established by regulators or contractual arrangements that establish the transaction price as well as the allocation of price amongst the separate performance obligations. When preliminary regulated rates are permitted to be billed prior to final approval by the applicable regulator, certain revenue collected may be subject to refund and a liability for estimated refunds is accrued.

The following table summarizes PacifiCorp's revenue by regulated energy, with further disaggregation of regulated energy by customer class, for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 (in millions):
Three-Month Period Nine-Month Period
Ended September 30, Ended September 30,
2018 2018
Customer Revenue:    
Retail:    
Residential$441
$478
 $1,284
Commercial342
418
 1,129
Industrial269
305
 862
Other retail25
106
 204
Total retail1,077
1,307
 3,479
Wholesale22
Wholesale (1)
(10) 21
Transmission22
30
 82
Other Customer Revenue19
16
 55
Total Customer Revenue1,140
1,343
 3,637
Other revenue44
26
 109
Total operating revenue$1,184
$1,369
 $3,746
(1)
During the three-month period endedSeptember 30, 2018, PacifiCorp financially settled certain non-derivative forward contracts for energy sales by making net payments to counterparties.



Contract Assets and Liabilities

In the event one of the parties to a contract has performed before the other, PacifiCorp would recognize a contract asset or contract liability depending on the relationship between the PacifiCorp's performance and the customer's payment. As of March 31,September 30, 2018 and December 31, 2017, there were no material contract assets or contract liabilities recorded on the Consolidated Balance Sheets. During the three-month periodthree- and nine-month periods ended March 31,September 30, 2018, there was no material revenue recognized that was included in the contract liability balance at the beginning of the period or from performance obligations satisfied in previous periods.

(13)Related Party Transactions

Berkshire Hathaway includes BHE and its subsidiaries in its United States federal income tax return. Consistent with established regulatory practice, PacifiCorp's provision for federal and state income tax has been computed on a stand-alone basis, and substantially all of its currently payable or receivable income tax is remitted to or received from BHE. For the nine-month periods ended September 30, 2018 and 2017, PacifiCorp made net cash payments for federal and state income tax to BHE totaling $21 million and $205 million, respectively.



Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations

The following is management's discussion and analysis of certain significant factors that have affected the consolidated financial condition and results of operations of PacifiCorp during the periods included herein. Explanations include management's best estimate of the impact of weather, customer growth and other factors. This discussion should be read in conjunction with PacifiCorp's historical unaudited Consolidated Financial Statements and Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10‑Q. PacifiCorp's actual results in the future could differ significantly from the historical results.


Results of Operations for the Third Quarter and First QuarterNine Months of 2018 and 2017

Overview

Net income for the firstthird quarter of 2018 was $148$270 million, an increase of $7 million, or 3%, compared to 2017. Net income increased primarily due to a decrease in income tax expense of $78 million from a lower federal tax rate due to the impact of the Tax Cuts and Jobs Act enacted on December 22, 2017 ("2017 Tax Reform"), partially offset by lower utility margin of $61 million and higher operations and maintenance expense of $12 million. Utility margin decreased due to lower average retail and wholesale rates, including $53 million of refund accruals related to 2017 Tax Reform, higher natural gas costs from higher volumes and higher purchased electricity from higher prices, partially offset by higher retail volumes and lower coal prices. Retail customer volumes increased 2% due to higher customer usage, primarily from industrial, commercial and residential customers in Utah, and an increase in the average number of customers across the service territory, offset by impacts of weather across the service territory. Energy generated increased 7% for the third quarter of 2018 compared to 2017 primarily due to higher natural gas and wind-powered generation, offset by lower coal-fueled and hydroelectric generation. Wholesale electricity sales volumes increased 33% and purchased electricity volumes decreased 17%.

Net income for the first nine months of 2018 was $602 million, a decrease of $31$15 million, or 17%2%, compared to 2017. Net income decreased primarily due to lower utility marginsmargin of $89$205 million, and higher depreciationoperations and amortizationmaintenance expenses of $6 million, partially offset by lower income tax expense of $60$194 million from a lower federal tax ratesrate due to the impact of 2017 Tax Reform and lower operations and maintenance expenses of $4 million.Reform. Utility marginsmargin decreased due to lower retail revenue from lower average retail rates, including $53$159 million from the impact of refund accruals related to 2017 Tax Reform, and lower retail customer volumes, higher purchased electricity costs from higher prices and volumes, lower average wholesale prices, and lower wholesale market prices,higher natural gas generation volumes, partially offset by higher wholesale volumes, lower coal-fueled generationcoal costs from lower coal volumes and prices, and lower average natural gas-fueled generation from lowergas prices. Retail customer volumes decreased 3.5%1% due to impactsthe unfavorable impact of weather on residentialacross the service territory, and commerciallower customer usage, primarily from industrial customers primarily in Oregon Washington, and Utah, lower industrialpartially offset by higher commercial and irrigation customer usage primarily in Utah and Oregon, lower residential usage primarily in Washington, Oregon, and Wyoming, and lower commercial usage in Oregon, partially offset by an increase in the average number of commercial and residential customers in Utah and Oregon, higher commercial and residential usage, primarily in Utah.across the service territory. Energy generated decreased 1%increased 2% for the first quarternine months of 2018 compared to 2017 primarily due to higher natural gas and wind-powered generation, offset by lower hydroelectric and coal-fueled generation, offset by higher wind-powered and natural gas-fueled generation. Wholesale electricity sales volumes increased 48%37% and purchased electricity volumes increased 13%4%.

Non-GAAP Financial Measure

Management utilizes various key financial measures that are prepared in accordance with GAAP, as well as non-GAAP financial measures such as, Utility Margin, to help evaluate results of operations. Utility Margin is calculated as operating revenue less cost of fuel and energy, costs, which are captions presented on the Consolidated Statements of Operations.

PacifiCorp’sPacifiCorp's cost of fuel and energy costs areis directly recovered from its customers through regulatory recovery mechanisms and as a result, changes in PacifiCorp’sPacifiCorp's revenue are comparable to changes in such expenses. As such, management believes Utility Margin more appropriately and concisely explainexplains profitability rather than a discussion of revenue and cost of salesfuel and energy separately. Management believes the presentation of Utility Margin provides meaningful and valuable insight into the information management considers important to running the business and a measure of comparability to others in the industry.


Utility Margin is not a measure calculated in accordance with GAAP and should be viewed as a supplement to and not a substitute for operating income which is the most comparable financial measure prepared in accordance with GAAP. The following table provides a reconciliation of utility margin to operating income (in millions):
 First QuarterThird Quarter First Nine Months
 2018 2017 Change2018 2017 Change 2018 2017 Change
Utility margin:                    
Operating revenue $1,184
 $1,281
 $(97)(8)%$1,369
 $1,430
 $(61)(4)% $3,746
 3,956
 $(210)(5)%
Energy costs 433
 441
 (8)(2)
Cost of fuel and energy465
 465
 

 1,300
 1,305
 (5)
Utility margin 751
 840
 (89)(11)904
 965
 (61)(6) 2,446
 2,651
 (205)(8)
Operations and maintenance 250
 254
 (4)(2)266
 254
 12
5
 777
 771
 6
1
Depreciation and amortization 202
 196
 6
3
203
 200
 3
2
 602
 598
 4
1
Taxes, other than income taxes 52
 51
 1
2
Property and other taxes49
 50
 (1)(2) 150
 149
 1
1
Operating income $247
 $339
 $(92)(27)$386
 $461
 $(75)(16) $917
 $1,133
 $(216)(19)



A comparison of PacifiCorp's key operating results is as follows:
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
Utility margin (in millions):                      
Operating revenue$1,184
 $1,281
 $(97) (8)%$1,369
 $1,430
 $(61) (4)% $3,746
 $3,956
 $(210) (5)%
Energy costs433
 441
 (8) (2)
Cost of fuel and energy465
 465
 
 
 1,300
 1,305
 (5) 
Utility margin$751
 $840
 $(89) (11)$904
 $965
 $(61) (6) $2,446
 $2,651
 $(205) (8)
                      
Sales (GWh):                      
Residential4,191
 4,461
 (270) (6)%4,347
 4,372
 (25) (1)% 11,996
 12,410
 (414) (3)%
Commercial(1)
4,298
 4,256
 42
 1
4,941
 4,783
 158
 3
 13,530
 13,303
 227
 2
Industrial, irrigation and other(1)
4,706
 4,953
 (247) (5)5,823
 5,683
 140
 2
 15,889
 16,061
 (172) (1)
Total retail13,195
 13,670
 (475) (3)15,111
 14,838
 273
 2
 41,415
 41,774
 (359) (1)
Wholesale2,448
 1,650
 798
 48
1,802
 1,350
 452
 33
 5,963
 4,362
 1,601
 37
Total sales15,643
 15,320
 323
 2
16,913
 16,188
 725
 4
 47,378
 46,136
 1,242
 3
                      
Average number of retail customers                      
(in thousands)1,890
 1,859
 31
 2 %1,902
 1,868
 34
 2 % 1,896
 1,863
 33
 2 %
                      
Average revenue per MWh:                      
Retail$81.54
 $86.80
 $(5.26) (6)%$86.29
 $90.58
 $(4.29) (5)% $83.92
 $88.41
 $(4.49) (5)%
Wholesale$26.92
 $34.81
 $(7.89) (23)%$9.12
 $28.74
 $(19.62) (68)% $21.62
 $29.55
 $(7.93) (27)%
                      
Heating degree days4,336
 4,758
 (422) (9)%208
 304
 (96) (32)% 5,655
 6,472
 (817) (13)%
Cooling degree days1,532
 1,804
 (272) (15)% 1,980
 2,342
 (362) (15)%
                      
Sources of energy (GWh)(2):
       
Sources of energy (GWh)(1):
               
Coal8,642
 8,840
 (198) (2)%10,510
 10,764
 (254) (2)% 26,231
 27,120
 (889) (3)%
Natural gas1,948
 1,838
 110
 6
3,841
 2,486
 1,355
 55
 7,770
 5,647
 2,123
 38
Hydroelectric(3)
1,136
 1,379
 (243) (18)
Wind and other(3)
1,069
 880
 189
 21
Hydroelectric(2)
467
 641
 (174) (27) 2,640
 3,598
 (958) (27)
Wind and other(2)
569
 460
 109
 24
 2,353
 2,030
 323
 16
Total energy generated12,795
 12,937
 (142) (1)15,387
 14,351
 1,036
 7
 38,994
 38,395
 599
 2
Energy purchased4,055
 3,585
 470
 13
2,506
 3,023
 (517) (17) 11,279
 10,845
 434
 4
Total16,850
 16,522
 328
 2
17,893
 17,374
 519
 3
 50,273
 49,240
 1,033
 2
                      
Average cost of energy per MWh:                      
Energy generated(4)
$18.48
 $19.30
 $(0.82) (4)%
Energy generated(3)
$19.45
 $19.89
 $(0.44) (2)% $18.96
 $19.21
 $(0.25) (1)%
Energy purchased$40.20
 $41.82
 $(1.62) (4)%$70.75
 $53.34
 $17.41
 33 % $44.43
 $42.20
 $2.23
 5 %

(1)Effective in April 2017, one customer was reclassified from "Industrial, irrigation and other" into "Commercial" resulting in an increase of 61 GWh to "Commercial" in 2018.

(2)GWh amounts are net of energy used by the related generating facilities.

(3)(2)All or some of the renewable energy attributes associated with generation from these generating facilities may be: (a) used in future years to comply with RPS or other regulatory requirements or (b) sold to third parties in the form of RECs or other environmental commodities.

(4)(3)The average cost per MWh of energy generated includes only the cost of fuel associated with the generating facilities.



Utility margin decreased $89$61 million, or 11%6%, for the firstthird quarter of 2018 compared to 2017 primarily due to:
$7059 million of lower retail revenue primarily due to lower average retail rates, including the impact of a lower federal tax rates as a result of therate due to 2017 Tax Reform of $53 million;
$4030 million of lower retailwholesale revenues from lower average prices;
$23 million of higher natural gas costs due to decreased volumes of 3.5% due to impacts of weather on residentialhigher volumes; and commercial customers primarily in Oregon, Washington, and Utah, lower industrial usage primarily in Utah and Oregon, lower residential usage primarily in Washington, Oregon, and Wyoming, and lower commercial usage in Oregon, partially offset by an increase in the average number of commercial and residential customers in Utah and Oregon, higher commercial and residential usage, primarily in Utah;
$1316 million of higher purchased electricity costs due to higher prices and volumes; and
$10 million of lower wholesale revenue due to lower wholesale market prices.

volumes.
The decreases above were partially offset by:
$1931 million of higher wholesale revenue from higher volumes;
$10 million of lower coal costs from lower volumes and prices;
$9 million of lower amortizationnet deferrals of incurred net power costs in accordance with established adjustment mechanism; andmechanisms;
$419 million of higher retail revenue from higher volumes. Retail volumes increased 2% due to due to higher customer usage, primarily from industrial, commercial and residential customers in Utah, and an increase in the average number of customers across the service territory, offset by impacts of weather across the service territory;
$8 million of lower natural gascoal costs primarily due tofrom lower prices.prices; and

$8 million of higher wholesale revenues from higher volumes.
Operations and maintenance decreased $4increased $12 million, or 2%5%, for the firstthird quarter of 2018 compared to 2017 primarily due to a decrease in reserves accrued for assets under construction2018 wildfires and lowerhigher labor costs.

Depreciation and amortization increased $6$3 million, or 3%2%, for the firstthird quarter of 2018 compared to 2017 primarily due to higher plant-in-service.

Income tax expense decreased $60$78 million, or 71%62%, for the third quarter of 2018 compared to 2017. The effective tax rate was 15% for 2018 and 32% for 2017. The effective tax rate decreased primarily as a result of the reduction in the U.S. federal corporate income tax rate from 35% to 21%, effective January 1, 2018, and the amortization of the excess deferred income taxes resulting from the reduction in the U.S. federal corporate income tax rate. 

Utility margin decreased $205 million, or 8%, for the first quarternine months of 2018 compared to 2017 primarily due to:

$184 million of lower retail revenue primarily due to lower average retail rates, including the impact of a lower federal tax rate due to 2017 Tax Reform of $159 million;
$44 million of higher purchased electricity costs due to higher prices and volumes;
$36 million of lower wholesale revenue from lower average prices;
$34 million of higher natural gas costs due to higher volumes; and
$33 million of lower retail revenue from lower retail customer volumes. Retail volumes decreased 1% due to the unfavorable impacts of weather across the service territory, and lower customer usage, primarily from industrial customers in Oregon and Utah, partially offset by higher commercial and irrigation customer usage in Utah and an increase in the average number of customers across the service territory.
The decreases above were partially offset by:
$55 million of higher net deferrals of incurred net power costs in accordance with established adjustment mechanisms;
$36 million of higher wholesale revenue due to higher volumes;
$20 million of lower coal costs due to lower volumes and prices; and
$12 million of lower natural gas costs from lower average prices.
Operations and maintenance increased $6 million, or 1%, for the first nine months of 2018 compared to 2017 primarily due to reserves accrued for 2018 wildfires, partially offset by lower labor costs.

Depreciation and amortization increased $4 million, or 1%, for the first nine months of 2018 compared to 2017 primarily due to higher plant-in-service, partially offset by an adjustment to the Oregon accelerated depreciation reserve based on the Oregon allocation factor in 2018.



Income tax expense decreased $194 million, or 66%, for the first nine months of 2018 compared to 2017. The effective tax rate was 14% for 2018 and 32% for 2017. The effective tax rate decreased primarily as a result of the reduction in the U.S. federal corporate income tax rate from 35% to 21%, effective January 1, 2018, and the amortization of the excess deferred income taxes resulting from the reduction in the U.S. federal corporate income tax rate. 

Liquidity and Capital Resources
 
As of March 31,September 30, 2018, PacifiCorp's total net liquidity was as follows (in millions):
Cash and cash equivalents $17
 $308
    
Credit facilities 1,000
 1,200
Less:    
Short-term debt (124) -
Tax-exempt bond support (89) (89)
Net credit facilities 787
 1,111
    
Total net liquidity $804
 $1,419
    
Credit facilities:    
Maturity dates 2020
 2021
Operating Activities

Net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $533$1,480 million and $588$1,461 million, respectively. The change was primarily due to lower current year collections from retail customersincome tax paid and higher current year purchased power costs, partially offset by higher current year collections from wholesale customers, and a decrease in payments for payrollprimarily due to timing.timing, partially offset by higher current year purchased power costs and lower current year collections from retail customers, primarily due to the 2017 Tax Reform.



The Tax Cuts and Jobs Act ("2017 Tax Reform")Reform reduced the federal corporate tax rate from 35% to 21% effective January 1, 2018, and eliminated bonus depreciation on qualifying regulated utility assets acquired after September 27,December 31, 2017. PacifiCorp anticipates passing the benefits of lower tax expense to customers through regulatory mechanisms. PacifiCorp expects lower revenue and income taxestax as well as lower bonus depreciation benefits compared to 2017 as a result of the 2017 Tax Reform and related regulatory treatment. PacifiCorp does not expect the 2017 Tax Reform and related regulatory treatment to have a material adverse impact on its cash flows, subject to actual regulatory outcomes, which will be determined based on rulings by regulatory commissions expected in 2018.2018 and 2019. The timing of PacifiCorp's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date.

Internal Revenue Service ("IRS") rules provide for re-establishment of the production tax credit for an existing wind-powered generating facility upon the replacement of a significant portion of its components. Such component replacement is commonly referred to as repowering. If the degree of component replacement in such projects meets IRS guidelines, production tax credits are re-established for ten years at rates that depend upon the date in which construction begins. PacifiCorp's current repowering projects are expected to earn production tax credits at 100% of the value of such credits.

Investing Activities

Net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $(237)$(711) million and $(178)$(548) million, respectively. The change mainly reflectsis primarily the result of a current year increase in capital expenditures of $58$160 million. Refer to "Future Uses of Cash" for discussion of capital expenditures.



Financing Activities

Net cash flows from financing activities for the three-monthnine-month period ended March 31,September 30, 2018 was $(293)$(475) million. Uses of cash consisted substantially of $250$586 million for the repayment of long term debt, $400 million for common stock dividends paid to PPW Holdings LLC and $86$80 million for the repayment of long-termshort-term debt, offset by $44$593 million net proceeds from short-termthe issuance of long-term debt.

Net cash flows from financing activities for the three-monthnine-month period ended March 31,September 30, 2017 was $(413)$(827) million. Uses of cash consisted substantially of $100$270 million for the repayment of short-term debt, $500 million for common stock dividends paid to PPW Holdings LLC and $50 million for the repayment of long-term debt and $262 million for the repayment of short-term debt.
    
Short-term Debt

Regulatory authorities limit PacifiCorp to $1.5 billion of short-term debt. As of March 31,September 30, 2018, PacifiCorp had $124 million ofno short-term debt outstanding at a weighted average interest rate of 2.21%.outstanding. As of December 31, 2017, PacifiCorp had $80 million of short-term debt outstanding at a weighted average interest rate of 1.83%.

Long-term Debt
 
In July 2018, PacifiCorp issued $600 million of its 4.125% First Mortgage Bonds due January 2049. PacifiCorp used a portion of the net proceeds to repay all of PacifiCorp's $500 million 5.65% First Mortgage Bonds due July 2018 and intends to use the remaining net proceeds to fund capital expenditures and for general corporate purposes.

PacifiCorp currently has regulatory authority from the OPUC and the IPUC to issue an additional $1.3 billion$725 million of long-term debt. PacifiCorp must make a notice filing with the WUTC prior to any future issuance.

As of March 31,September 30, 2018, PacifiCorp had $170 million of letters of credit providing credit enhancement and liquidity support for variable-rate tax-exempt bond obligations totaling $168 million plus interest. These letters of credit were fully available as of March 31,September 30, 2018 and expire periodically through March 2019.

Future Uses of Cash

PacifiCorp has available a variety of sources of liquidity and capital resources, both internal and external, including net cash flows from operating activities, public and private debt offerings, the issuance of commercial paper, the use of unsecured revolving credit facilities, capital contributions and other sources. These sources are expected to provide funds required for current operations, capital expenditures, debt retirements and other capital requirements. The availability and terms under which PacifiCorp has access to external financing depends on a variety of factors, including PacifiCorp's credit ratings, investors' judgment of risk and conditions in the overall capital markets, including the condition of the utility industry.

Capital Expenditures
 
PacifiCorp has significant future capital requirements. Capital expenditure needs are reviewed regularly by management and may change significantly as a result of these reviews, which may consider, among other factors, impacts to customers' rates; changes in environmental and other rules and regulations; outcomes of regulatory proceedings; changes in income tax laws; general business conditions; load projections; system reliability standards; the cost and efficiency of construction labor, equipment and materials; commodity prices; and the cost and availability of capital.



Historical and forecast capital expenditures, each of which exclude amounts for non-cash equity AFUDC and other non-cash items, are as follows (in millions):
Three-Month Periods AnnualNine-Month Periods Annual
Ended March 31, ForecastEnded September 30, Forecast
2017 2018 20182017 2018 2018
          
Transmission system investment$5
 $9
 $65
$75
 $34
 $66
Environmental5
 3
 12
Wind investment2
 2
 550
8
 76
 384
Advanced meter infrastructure12
 14
 73
20
 44
 74
Operating and other154
 208
 548
450
 559
 674
Total$178
 $236
 $1,248
$553
 $713
 $1,198

PacifiCorp's historical and forecast capital expenditures include the following:

Transmission system investment primarily reflects initial costs for the 140-mile 500 kV Aeolus-Bridger/Anticline transmission line, a major segment of PacifiCorp's Energy Gateway Transmission expansion program expected to be placed in-service in 2020. Planned spending for the Aeolus-Bridger/Anticline line totals $40$45 million in 2018.

Environmental includes the installationConstruction of or replacement of emissions control equipment at certainwind-powered generating facilities as well as expendituresat PacifiCorp totaling $5 million and $4 million for the management of coal combustion residuals,nine-month periods ended September 30, 2018 and expenditures to ensure facilities meet effluent limitation guidelines and requirements under the Clean Water Act.

Wind investment includes2017. PacifiCorp anticipates costs for these activities will total an additional $62 million for 2018. The new wind plant construction projects and repowering of certain existing wind plants.wind-powered generating facilities are expected to be placed in-service in 2020. The repowering projects entails the replacement of significant component of older turbines. Planned spending for the repowering totals $347 million in 2018 and forenergy production from the new wind-powered generating facilities totals $203is expected to qualify for 100% of the federal production tax credits available for ten years once the equipment is placed in-service.

Repowering certain existing wind-powered generating facilities at PacifiCorp totaling $70 million inand $4 million for the nine-month periods ended September 30, 2018 and 2017, respectively. PacifiCorp anticipates costs for these activities will total an additional $246 million for 2018. The repowering projects are expected to be placed in-service at various dates in 2019 and 2020. The new wind-powered generating facilities are also expected to be placed in-service in 2020. The energy production from thesuch repowered and new wind-powered generating facilities is expected to qualify for 100% of the federal renewable electricity production tax creditcredits available for 10ten years once the equipment is placed in-service.following each facility's return to service.

Advanced meter infrastructure ("AMI") includes costs for customer meter replacements and installation of infrastructure and systems to implement smart meter features that improve customers’customers' energy management capabilities and reduce company meter-related costs. AMI projects are in progress or planned in Oregon, California, Utah and Idaho in 2018.

Remaining investments relate to operating projects that consist of routine expenditures for generation, transmission, distribution and other infrastructure needed to serve existing and expected demand, including upgrades to customer meters in Oregon, California, Utah, and Idaho.demand.

Integrated Resource Plan

In April 2017, PacifiCorp filed its 2017 Integrated Resource Plan ("IRP") with its state commissions. The IRP, which includes the Energy Vision 2020 project in the preferred portfolio, includes investments in renewable energy resources, upgrades to the existing wind fleet, and energy efficiency measures to meet future customer needs. The OPUC acknowledged PacifiCorp's 2017 IRP onin December 11, 2017, and the UPSC acknowledged PacifiCorp’sthe 2017 IRP onin March 2,2018, the IPUC acknowledged the 2017 IRP in April 2018, and the WUTC acknowledged the 2017 IRP in May 2018. PacifiCorp filed its 2017 IRP Update with its state commissions, onexcept for California, in May 1, 2018. In August 2018, PacifiCorp filed its 2017 IRP and its 2017 IRP Update with the California Public Utilities Commission to comply with new IRP requirements in California.

Request for Proposals

PacifiCorp issues individual Request for Proposals ("RFP"), each of which typically focuses on a specific category of generation resources consistent with the IRP or other customer-driven demands. The IRP and the RFPs provide for the identification and staged procurement of resources to meet load or renewable portfolio standard requirements. Depending upon the specific RFP, applicable laws and regulations may require PacifiCorp to file draft RFPs with the UPSC, the OPUC and the WUTC. Approval by the UPSC, the OPUC or the WUTC may be required depending on the nature of the RFPs.



As required by applicable laws and regulations, PacifiCorp filed its draft 2017R RFP with the UPSC in June 2017 and with the OPUC in August 2017. The UPSC and the OPUC approved PacifiCorp's 2017R RFP in September 2017. The 2017R RFP was subsequently released to the market on September 27, 2017. The 2017R RFP sought up to approximately 1,270 MW of new wind resources that can interconnect to PacifiCorp's transmission system in Wyoming once a proposed high-voltage transmission line is constructed. The 2017R RFP also sought proposals for wind resources located outside of Wyoming capable of delivering all-in economic benefits for PacifiCorp's customers. The proposed high-voltage transmission line and new wind resources must be placed in service by December 31, 2020, to maximize potential federal production tax credit benefits for PacifiCorp's customers. Bids were received in October 2017 and best-and-final pricing, reflecting changes in federal tax law, was received in December 2017. PacifiCorp finalized its bid-selection process and established a final shortlist in February 2018. PacifiCorp has identified four winning wind-resource bidsis finalizing agreements to acquire energy and capacity from this solicitationthree wind facilities totaling 1,3111,150 MWs, consisting of 1,111950 MWs owned and 200 MWMWs as a power-purchase agreement.

PacifiCorp released the 2017S RFP to the market on November 15, 2017. The 2017S RFP is seeking bids for new solar resources that can deliver energy and capacity to PacifiCorp's transmission system that provide net benefits for customers. The 2017S RFP was open to bidders offering power-purchase agreements for new solar facilities sized between 10 and 300 MW. Bids were due in December 2017, and best-and-final pricing was received in February 2018. PacifiCorp finalized its bid-selection process in March 2018 and did not select any bids to the final shortlist. PacifiCorp will continue to analyze the potential economic benefits from solar-resource opportunities in its 2019 IRP.

Contractual Obligations

As of March 31,September 30, 2018, there have been no material changes outside the normal course of business in contractual obligations from the information provided in Item 7 of PacifiCorp's Annual Report on Form 10-K for the year ended December 31, 2017.

Regulatory Matters

PacifiCorp is subject to comprehensive regulation. Refer to "Regulatory Matters" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for discussion regarding PacifiCorp's current regulatory matters.

Environmental Laws and Regulations

PacifiCorp is subject to federal, state, local and foreign laws and regulations regarding air and water quality, RPS, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact PacifiCorp's current and future operations. In addition to imposing continuing compliance obligations, these laws and regulations provide regulators with the authority to levy substantial penalties for noncompliance including fines, injunctive relief and other sanctions. These laws and regulations are administered by the EPA and various state, local and international agencies. PacifiCorp believes it is in material compliance with all applicable laws and regulations, although many are subject to interpretation that may ultimately be resolved by the courts. Environmental laws and regulations continue to evolve, and PacifiCorp is unable to predict the impact of the changing laws and regulations on its operations and financial results. Refer to "Liquidity and Capital Resources" for discussion of PacifiCorp's forecast environmental-related capital expenditures.

Refer to "Environmental Laws and Regulations" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for additional information regarding environmental laws.

New Accounting Pronouncements

For a discussion of new accounting pronouncements affecting PacifiCorp, refer to Note 2 of Notes to Consolidated Financial Statements in Part I, Item 1 of the Form 10-Q.



Critical Accounting Estimates

Certain accounting measurements require management to make estimates and judgments concerning transactions that will be settled several years in the future. Amounts recognized on the Consolidated Financial Statements based on such estimates involve numerous assumptions subject to varying and potentially significant degrees of judgment and uncertainty and will likely change in the future as additional information becomes available. Estimates are used for, but not limited to, the accounting for the effects of certain types of regulation, derivatives, pension and other postretirement benefits, income taxes and revenue recognition-unbilled revenue. For additional discussion of PacifiCorp's critical accounting estimates, see Item 7 of PacifiCorp's Annual Report on Form 10-K for the year ended December 31, 2017. There have been no significant changes in PacifiCorp's assumptions regarding critical accounting estimates since December 31, 2017.



MidAmerican Funding, LLC and its subsidiaries and MidAmerican Energy Company
Consolidated Financial Section



PART I
Item 1.Financial Statements


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Shareholder of MidAmerican Energy Company

Results of Review of Interim Financial Information

We have reviewed the accompanying balance sheet of MidAmerican Energy Company ("MidAmerican Energy") as of March 31,September 30, 2018, the related statements of operations for the three-month and nine-month periods ended September 30, 2018 and 2017, and of changes in shareholder's equity and cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the balance sheet of MidAmerican Energy as of December 31, 2017, and the related statements of operations, comprehensive income, changes in shareholder's equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those financial statements. In our opinion, the information set forth in the accompanying balance sheet as of December 31, 2017, is fairly stated, in all material respects, in relation to the balance sheet from which it has been derived.

Basis for Review Results

This interim financial information is the responsibility of MidAmerican Energy's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to MidAmerican Energy in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.


/s/ Deloitte & Touche LLP


Des Moines, Iowa
May 7,November 2, 2018



MIDAMERICAN ENERGY COMPANY
BALANCE SHEETS (Unaudited)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
ASSETS
Current assets:      
Cash and cash equivalents$380
 $172
$115
 $172
Receivables, net319
 344
Income taxes receivable119
 51
Accounts receivable, net384
 344
Income tax receivable150
 51
Inventories208
 245
205
 245
Other current assets138
 134
104
 134
Total current assets1,164
 946
958
 946
      
Property, plant and equipment, net14,268
 14,207
15,233
 14,207
Regulatory assets209
 204
230
 204
Investments and restricted investments723
 728
756
 728
Other assets216
 233
211
 233
      
Total assets$16,580
 $16,318
$17,388
 $16,318

The accompanying notes are an integral part of these financial statements.


MIDAMERICAN ENERGY COMPANY
BALANCE SHEETS (Unaudited) (continued)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities:      
Accounts payable$240
 $452
$348
 $452
Accrued interest55
 48
55
 48
Accrued property, income and other taxes119
 132
155
 132
Current portion of long-term debt500
 350
500
 350
Other current liabilities152
 128
153
 128
Total current liabilities1,066
 1,110
1,211
 1,110
      
Long-term debt4,879
 4,692
4,880
 4,692
Regulatory liabilities1,645
 1,661
Deferred income taxes2,224
 2,237
2,322
 2,237
Regulatory liabilities1,688
 1,661
Asset retirement obligations535
 528
546
 528
Other long-term liabilities318
 326
325
 326
Total liabilities10,710
 10,554
10,929
 10,554
      
Commitments and contingencies (Note 10)
 

 
      
Shareholder's equity:      
Common stock - 350 shares authorized, no par value, 71 shares issued and outstanding
 

 
Additional paid-in capital561
 561
561
 561
Retained earnings5,309
 5,203
5,898
 5,203
Total shareholder's equity5,870
 5,764
6,459
 5,764
      
Total liabilities and shareholder's equity$16,580
 $16,318
$17,388
 $16,318

The accompanying notes are an integral part of these financial statements.



MIDAMERICAN ENERGY COMPANY
STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Regulated electric$469
 $433
$727
 $707
 $1,785
 $1,677
Regulated gas and other277
 262
Regulated natural gas and other105
 106
 510
 489
Total operating revenue746
 695
832
 813
 2,295
 2,166
          
Operating costs and expenses:   
Cost of fuel, energy and capacity108
 102
Cost of gas sold and other179
 172
Operating expenses:       
Cost of fuel and energy140
 130
 366
 342
Cost of natural gas purchased for resale and other50
 54
 296
 288
Operations and maintenance190
 171
201
 204
 598
 561
Depreciation and amortization158
 117
133
 111
 499
 369
Property and other taxes32
 31
30
 30
 92
 90
Total operating costs and expenses667
 593
Total operating expenses554
 529
 1,851
 1,650
          
Operating income79
 102
278
 284
 444
 516
          
Other income (expense):          
Interest expense(58) (53)(56) (54) (170) (160)
Allowance for borrowed funds4
 2
6
 4
 14
 9
Allowance for equity funds10
 6
16
 11
 39
 25
Other, net9
 11
13
 9
 34
 27
Total other income (expense)(35) (34)(21) (30) (83) (99)
          
Income before income tax benefit44
 68
257
 254
 361
 417
Income tax benefit(62) (37)(226) (131) (334) (207)
          
Net income$106
 $105
$483
 $385
 $695
 $624

The accompanying notes are an integral part of these financial statements.



MIDAMERICAN ENERGY COMPANY
STATEMENTS OF CHANGES IN SHAREHOLDER'S EQUITY (Unaudited)
(Amounts in millions)

Common
Stock
 
Retained
Earnings
 
Total
Equity
Common Stock Additional Paid-in Capital 
Retained
Earnings
 
Total Shareholder's
Equity
            
Balance, December 31, 2016$561
 $4,599
 $5,160
$
 $561
 $4,599
 $5,160
Net income
 105
 105

 
 624
 624
Balance, March 31, 2017$561
 $4,704
 $5,265
Balance, September 30, 2017$
 $561
 $5,223
 $5,784
            
Balance, December 31, 2017$561
 $5,203
 $5,764
$
 $561
 $5,203
 $5,764
Net income
 106
 106

 
 695
 695
Balance, March 31, 2018$561
 $5,309
 $5,870
Balance, September 30, 2018$
 $561
 $5,898
 $6,459

The accompanying notes are an integral part of these financial statements.



MIDAMERICAN ENERGY COMPANY
STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$106
 $105
$695
 $624
Adjustments to reconcile net income to net cash flows from operating activities:      
Depreciation and amortization158
 117
499
 369
Amortization of utility plant to other operating expenses26
 25
Allowance for equity funds(39) (25)
Deferred income taxes and amortization of investment tax credits19
 13
(35) 64
Changes in other assets and liabilities10
 11
Other, net(10) (6)13
 5
Changes in other operating assets and liabilities:      
Receivables, net23
 39
Accounts receivable and other assets(46) (29)
Inventories37
 22
40
 29
Derivative collateral, net(2) 

 3
Contributions to pension and other postretirement benefit plans, net(3) (3)(10) (8)
Accounts payable(58) 1
Accrued property, income and other taxes, net(82) (71)(77) 98
Other current assets and liabilities32
 (6)
Accounts payable and other liabilities(38) 18
Net cash flows from operating activities230
 222
1,028
 1,173
      
Cash flows from investing activities:      
Capital expenditures(365) (238)(1,466) (1,162)
Purchases of marketable securities(95) (40)(224) (126)
Proceeds from sales of marketable securities74
 35
198
 127
Other, net15
 (3)29
 (10)
Net cash flows from investing activities(371) (246)(1,463) (1,171)
      
Cash flows from financing activities:      
Proceeds from long-term debt687
 843
687
 842
Repayments of long-term debt(350) (255)(350) (255)
Net repayments of short-term debt
 (99)
 (99)
Other, net(1) 
Net cash flows from financing activities337
 489
336
 488
      
Net change in cash and cash equivalents and restricted cash and cash equivalents196
 465
(99) 490
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period282
 26
282
 26
Cash and cash equivalents and restricted cash and cash equivalents at end of period$478
 $491
$183
 $516

The accompanying notes are an integral part of these financial statements.



MIDAMERICAN ENERGY COMPANY
NOTES TO FINANCIAL STATEMENTS
(Unaudited)

(1)General

MidAmerican Energy Company ("MidAmerican Energy") is a public utility with electric and natural gas operations and is the principal subsidiary of MHC Inc. ("MHC"). MHC is a holding company that conducts no business other than the ownership of its subsidiaries and related corporate services. MHC's nonregulated subsidiaries include Midwest Capital Group, Inc. and MEC Construction Services Co. MHC is the direct, wholly owned subsidiary of MidAmerican Funding, LLC ("MidAmerican Funding"), which is an Iowa limited liability company with Berkshire Hathaway Energy Company ("BHE") as its sole member. BHE is a holding company based in Des Moines, Iowa and is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway").

The unaudited Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Financial Statements as of March 31,September 30, 2018, and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-monththree- and nine-month periods ended March 31,September 30, 2018, are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Financial Statements. Note 2 of Notes to Financial Statements included in MidAmerican Energy's Annual Report on Form 10-K for the year ended December 31, 2017, describes the most significant accounting policies used in the preparation of the unaudited Financial Statements. There have been no significant changes in MidAmerican Energy's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)New Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-02, which creates FASB Accounting Standards Codification ("ASC") Topic 842, "Leases" and supersedes Topic 840 "Leases." This guidance increases transparency and comparability among entities by recording lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. In JanuaryDuring 2018, the FASB issued several ASUs that clarified the implementation guidance and provided optional transition practical expedients for ASU No. 2016-02 including ASU No. 2018-01 that provides for an optional transition practical expedient allowingallows companies to not have to evaluateforgo evaluating existing land easements if they were not previously accounted for under ASC Topic 840, "Leases.""Leases" and ASU No. 2018-11 that allows companies to apply the new guidance at the adoption date with the cumulative-effect adjustment to the opening balance of retained earnings recognized in the period of adoption. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach. MidAmerican Energy plans to adopt this guidance effective January 1, 2019 and is currently in the process of evaluating the impact on its Financial Statements and disclosures included within Notes to Financial Statements.

(3)    Cash and Cash Equivalents and Restricted Cash and Cash Equivalents
(3)Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. MidAmerican Energy adopted this guidance January 1, 2018.



Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Balance Sheets (in millions):
As of
As ofSeptember 30, December 31
March 31, 2018 December 31, 20172018 2017
      
Cash and cash equivalents$380
 $172
$115
 $172
Restricted cash and cash equivalents in other current assets98
 110
68
 110
Total cash and cash equivalents and restricted cash and cash equivalents$478
 $282
$183
 $282

(4)    Property, Plant and Equipment, Net
(4)Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 As of As of
 March 31, December 31, September 30, December 31,
Depreciable Life 2018 2017Depreciable Life 2018 2017
Utility plant in service, net:        
Generation20-70 years $12,108
 $12,107
20-70 years $12,500
 $12,107
Transmission52-75 years 1,844
 1,838
52-75 years 1,870
 1,838
Electric distribution20-75 years 3,418
 3,380
20-75 years 3,519
 3,380
Gas distribution29-75 years 1,652
 1,640
Natural gas distribution29-75 years 1,694
 1,640
Utility plant in service 19,022
 18,965
 19,583
 18,965
Accumulated depreciation and amortization (5,670) (5,561) (5,850) (5,561)
Utility plant in service, net 13,352
 13,404
 13,733
 13,404
Nonregulated property, net:        
Nonregulated property gross20-50 years 7
 7
20-50 years 7
 7
Accumulated depreciation and amortization (1) (1) (1) (1)
Nonregulated property, net 6
 6
 6
 6
 13,358
 13,410
 13,739
 13,410
Construction work-in-progress 910
 797
 1,494
 797
Property, plant and equipment, net $14,268
 $14,207
 $15,233
 $14,207

(5)    Recent Financing Transactions
(5)Recent Financing Transactions

Long-Term Debt

In February 2018, MidAmerican Energy issued $700 million of its 3.65% First Mortgage Bonds due August 2048. An amount equal to the net proceeds was used to finance capital expenditures, disbursed during the period from February 2, 2017 to October 31, 2017, with respect to investments in MidAmerican Energy's 2,000-megawatt (nameplate capacity) Wind XI project and the repowering of certain of MidAmerican Energy's existing wind facilities, which were previously financed with MidAmerican Energy's general funds.

In March 2018, MidAmerican Energy repaid $350 million of its 5.30% Senior Notes due March 2018.



Credit Facilities

In April 2018, MidAmerican Energy amended and restated its existing $900 million unsecured credit facility, expiring June 2020, extending the expiration date to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.

(6)    Income Taxes
(6)Income Taxes

Tax Cuts and Jobs Act

The Tax Cuts and Jobs Act ("2017 Tax Reform") impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018, and limitations on bonus depreciation for utility property.

In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin ("SAB") 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. MidAmerican Energy has recorded the impacts of 2017 Tax Reform and believes all the impacts to be complete with the exception of interpretations of the bonus depreciation rules. MidAmerican Energy has determined the amounts recorded and the interpretations relating to this item to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. MidAmerican Energy believes its interpretations for bonus depreciation to be reasonable; however, as the guidance is clarified estimates may change. The accounting is estimated towill be completed by December 2018.

Iowa Senate File 2417

In May 2018, Iowa Senate File 2417 was signed into law, which, among other items, reduces the state of Iowa corporate tax rate from 12% to 9.8% and eliminates corporate federal deductibility, both for tax years starting in 2021. GAAP requires the effect on deferred tax assets and liabilities of a change in tax rates be recognized in the period the tax rate change was enacted. As a result of Iowa Senate File 2417, MidAmerican Energy reduced net deferred income tax liabilities $54 million and decreased deferred income tax benefit by $2 million. As it is probable the change in deferred taxes for MidAmerican Energy will be passed back to customers through regulatory mechanisms, MidAmerican Energy increased net regulatory liabilities by $56 million.

A reconciliation of the federal statutory income tax rate to MidAmerican Energy's effective income tax rate applicable to income before income tax benefit is as follows:
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Federal statutory income tax rate21 % 35 %21 % 35 % 21 % 35 %
Income tax credits(137) (80)(95) (74) (97) (74)
State income tax, net of federal income tax benefit(9) 2
(10) (10) (9) (7)
Effects of ratemaking(18) (12)(4) (2) (7) (4)
Other, net2
 1

 (1) (1) 
Effective income tax rate(141)% (54)%(88)% (52)% (93)% (50)%

Income tax credits relate primarily to production tax credits from MidAmerican Energy's wind-powered generating facilities. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service.

Berkshire Hathaway includes BHE and subsidiaries in its United States federal and Iowa state income tax return.returns. Consistent with established regulatory practice, MidAmerican Energy's provision for income taxestax has been computed on a stand-alone basis, and substantially all of its currently payable or receivable income taxes aretax is remitted to or received from BHE. MidAmerican Energy received net cash payments for income taxestax from BHE totaling $14$232 million and $-$381 million for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, respectively.




(7)Employee Benefit Plans

In March 2017, the FASB issued ASU No. 2017-07, which amends FASB ASC Topic 715, "Compensation - Retirement Benefits." The amendments in this guidance require that an employer disaggregate the service cost component from the other components of net benefit cost and report the service cost component in the same line item as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the statement of operations separately from the service cost component and outside the subtotal of operating income. Additionally, the guidance only allows the service cost component to be eligible for capitalization when applicable. MidAmerican Energy adopted this guidance January 1, 2018 prospectively for the capitalization of the service cost component in the Balance Sheets and retrospectively for the presentation of the service cost component and the other components of net benefit cost in the Statements of Operations, applying the practical expedient to use the amounts previously disclosed in the Notes to Financial Statements as the estimation basis for applying the retrospective presentation requirement. As a result, for the three- and nine-month periods ended September 30, 2017, amounts other than the service cost for pension and other postretirement benefit plans for the three-month period ended March 31, 2017 of $5totaling $4 million and $15 million have been reclassified to Other,other, net in the Statements of Operations.Operations of the participating subsidiaries, of which $4 million and $14 million, respectively, relates to MidAmerican Energy.

MidAmerican Energy sponsors a noncontributory defined benefit pension plan covering a majority of all employees of BHE and its domestic energy subsidiaries other than PacifiCorp and NV Energy, Inc. MidAmerican Energy also sponsors certain postretirement healthcare and life insurance benefits covering substantially all retired employees of BHE and its domestic energy subsidiaries other than PacifiCorp and NV Energy, Inc.

Net periodic benefit (credit) cost for the plans of MidAmerican Energy and the aforementioned affiliates included the following components (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Pension:          
Service cost$2
 $2
$2
 $2
 $6
 $7
Interest cost7
 8
7
 8
 21
 23
Expected return on plan assets(11) (11)(11) (11) (33) (33)
Net amortization1
 
1
 
 2
 1
Net periodic benefit credit$(1) $(1)$(1) $(1) $(4) $(2)
          
Other postretirement:          
Service cost$1
 $1
$1
 $2
 $4
 $4
Interest cost2
 2
2
 3
 6
 7
Expected return on plan assets(3) (3)(3) (3) (10) (10)
Net amortization(1) (1)(1) (1) (3) (3)
Net periodic benefit credit$(1) $(1)$(1) $1
 $(3) $(2)

Amounts other than the service cost for pension and other postretirement benefit plans are recorded in Other, net in the Statements of Operations. Employer contributions to the pension and other postretirement benefit plans are expected to be $8 million and $1 million, respectively, during 2018. As of March 31,September 30, 2018, $2$5 million and $- million of contributions had been made to the pension and other postretirement benefit plans, respectively.

(8)    Asset Retirement Obligations

In January 2018, MidAmerican Energy completed groundwater testing at its coal combustion residuals ("CCR") surface impoundments. Based on this information, MidAmerican Energy concluded in March 2018 that it will discontinuediscontinued sending CCR to surface impoundments effective April 2018 and will remove all CCR material located below the water table in such facilities, the latter of which is a more extensive closure activity than previously assumed. The incremental cost and timing of such actions is not currently reasonably determinable, but an evaluation of such estimates is expected to be completed in the thirdfirst quarter of 2018,2019, with any necessary adjustments to the related asset retirement obligations recognized at that time.




(9)Fair Value Measurements

The carrying value of MidAmerican Energy's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. MidAmerican Energy has various financial assets and liabilities that are measured at fair value on the Financial Statements using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows:

Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that MidAmerican Energy has the ability to access at the measurement date.

Level 2 — Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

Level 3 — Unobservable inputs reflect MidAmerican Energy's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. MidAmerican Energy develops these inputs based on the best information available, including its own data.

The following table presents MidAmerican Energy's financial assets and liabilities recognized on the Balance Sheets and measured at fair value on a recurring basis (in millions):
 Input Levels for Fair Value Measurements     Input Levels for Fair Value Measurements    
 Level 1 Level 2 Level 3 
Other(1)
 Total Level 1 Level 2 Level 3 
Other(1)
 Total
As of March 31, 2018:          
As of September 30, 2018:          
Assets:                    
Commodity derivatives $
 $1
 $1
 $(1) $1
 $
 $4
 $1
 $(2) $3
Money market mutual funds(2)
 106
 
 
 
 106
 88
 
 
 
 88
Debt securities:                    
United States government obligations 183
 
 
 
 183
 183
 
 
 
 183
International government obligations 
 4
 
 
 4
 
 4
 
 
 4
Corporate obligations 
 37
 
 
 37
 
 47
 
 
 47
Municipal obligations 
 1
 
 
 1
 
 2
 
 
 2
Equity securities:                    
United States companies 278
 
 
 
 278
 300
 
 
 
 300
International companies 6
 
 
 
 6
 6
 
 
 
 6
Investment funds 20
 
 
 
 20
 21
 
 
 
 21
 $593
 $43
 $1
 $(1) $636
 $598
 $57
 $1
 $(2) $654
                    
Liabilities - commodity derivatives $
 $(7) $(1) $1
 $(7) $
 $(7) $(2) $3
 $(6)


  Input Levels for Fair Value Measurements    
  Level 1 Level 2 Level 3 
Other(1)
 Total
As of December 31, 2017:          
Assets:          
Commodity derivatives $
 $3
 $4
 $(2) $5
Money market mutual funds(2)
 133
 
 
 
 133
Debt securities:          
United States government obligations 176
 
 
 
 176
International government obligations 
 5
 
 
 5
Corporate obligations 
 36
 
 
 36
Municipal obligations 
 2
 
 
 2
Equity securities:          
United States companies 288
 
 
 
 288
International companies 7
 
 
 
 7
Investment funds 15
 
 
 
 15
  $619
 $46
 $4
 $(2) $667
           
Liabilities - commodity derivatives $
 $(9) $(1) $2
 $(8)

(1)Represents netting under master netting arrangements and a net cash collateral receivable of $1 million and $- million as of March 31,September 30, 2018 and December 31, 2017, respectively.
(2)Amounts are included in cash and cash equivalents and investments and restricted cash and investments on the Balance Sheets. The fair value of these money market mutual funds approximates cost.
Derivative contracts are recorded on the Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which MidAmerican Energy transacts. When quoted prices for identical contracts are not available, MidAmerican Energy uses forward price curves. Forward price curves represent MidAmerican Energy's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. MidAmerican Energy bases its forward price curves upon market price quotations, when available, or internally developed and commercial models, with internal and external fundamental data inputs. Market price quotations are obtained from independent brokers, exchanges, direct communication with market participants and actual transactions executed by MidAmerican Energy. Market price quotations are generally readily obtainable for the applicable term of MidAmerican Energy's outstanding derivative contracts; therefore, MidAmerican Energy's forward price curves reflect observable market quotes. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to the length of the contract. Given that limited market data exists for these contracts, as well as for those contracts that are not actively traded, MidAmerican Energy uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The estimated fair value of these derivative contracts is a function of underlying forward commodity prices, interest rates, related volatility, counterparty creditworthiness and duration of contracts.

MidAmerican Energy's investments in money market mutual funds and debt and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value. In the absence of a quoted market price or net asset value of an identical security, the fair value is determined using pricing models or net asset values based on observable market inputs and quoted market prices of securities with similar characteristics.



The following table reconciles the beginning and ending balances of MidAmerican Energy's commodity derivative assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Beginning balance$3
 $(2)$(1) $(1) $3
 $(2)
Changes in fair value recognized in net regulatory assets(2) 2
(1) (2) (4) (2)
Settlements(1) 1
1
 1
 
 2
Ending balance$
 $1
$(1) $(2) $(1) $(2)

MidAmerican Energy's long-term debt is carried at cost on the Balance Sheets. The fair value of MidAmerican Energy's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Energy's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Energy's long-term debt (in millions):
 As of March 31, 2018 As of December 31, 2017
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
        
Long-term debt$5,379
 $5,793
 $5,042
 $5,686
 As of September 30, 2018 As of December 31, 2017
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
        
Long-term debt$5,380
 $5,612
 $5,042
 $5,686

(10)    
(10)Commitments and Contingencies

Construction Commitments

During the nine-month period ended September 30, 2018, MidAmerican Energy entered into firm commitments totaling $563 million for the remainder of 2018 through 2020 related to the construction of wind-powered generating facilities.

Easements

During the three-monthnine-month period ended March 31,September 30, 2018, MidAmerican Energy entered into non-cancelable easements with minimum payments totaling $283$422 million through 2058 for land in Iowa on which some of its wind-powered generating facilities will be located.

Maintenance and Service Contracts

During the nine-month period ended September 30, 2018, MidAmerican Energy entered into non-cancelable maintenance and service contracts related to wind-powered generating facilities with minimum payment commitments totaling $226 million through 2028.

Legal Matters

MidAmerican Energy is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. MidAmerican Energy does not believe that such normal and routine litigation will have a material impact on its financial results.

Environmental Laws and Regulations

MidAmerican Energy is subject to federal, state and local laws and regulations regarding air and water quality, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact its current and future operations. MidAmerican Energy believes it is in material compliance with all applicable laws and regulations.



Transmission Rates

MidAmerican Energy's wholesale transmission rates are set annually using FERC-approved formula rates subject to true-up for actual cost of service. Prior to September 2016, the rates in effect were based on a 12.38% return on equity ("ROE"). In November 2013 and February 2015, a coalition of intervenors filed successive complaints with the FERC requesting that the 12.38% ROE no longer be found just and reasonable and sought to reduce the base ROE to 9.15% and 8.67%, respectively. MidAmerican Energy is authorized by the FERC to include a 0.50% adder beyond the base ROE effective January 2015. In September 2016, the FERC issued an order for the first complaint, which reduces the base ROE to 10.32% and requiresrequired refunds, plus interest, for the period from November 2013 through February 2015. Customer refunds relative to the first complaint occurred in February 2017. It is uncertain when the FERC will rule on the second complaint, covering the period from February 2015 through May 2016. MidAmerican Energy believes it is probable that the FERC will order a base ROE lower than 12.38% in the second complaint and, as of March 31,September 30, 2018, has accrued a $10 million liability for refunds under the second complaint of amounts collected under the higher ROE from March 2015 through May 2016.

Retail Regulated Rates

In December 2017, the 2017 Tax Reform was signed into law, reducing the federal tax rate from 35% to 21%. Accumulated deferred income tax balances were re-measured at the 21% rate and regulatory liabilities increased reflective of the probability of such balances being passed back to customers. MidAmerican Energy has made filings or has been in discussions with each of its state rate regulatory bodies proposing either a reduction in retail rates or rate base for all or a portion of the net benefits of the 2017 Tax Reform for 2018 and beyond. MidAmerican Energy proposed in Iowa, its largest jurisdiction, to reduce customer revenue via a rider mechanism for the impact of the lower statutory rate on current operations, subject to change depending on actual results, and defer as a regulatory liability the amortization of excess deferred income taxes. The Illinois Commerce Commission approved MidAmerican Energy's Illinois tax reform rate reduction tariff on March 21, 2018, and the Iowa Utilities Board approved MidAmerican Energy's Iowa tax reform rate reduction tariff on April 27, 2018. As of March 31, 2018, $29 million was accrued for the estimated potential refund liability attributablealthough it has opened a docket to lower customer rates enabledconsider concerns by the benefits ofcertain stakeholders. The approved tax reform effective January 1, 2018.rider mechanisms for each jurisdiction function consistent with MidAmerican Energy's other bill riders in that over or under collection from customers at any given time is included in accounts receivable, net, on the Balance Sheets.

(11)    Revenue from Contracts with Customers
(11)Revenue from Contracts with Customers

Adoption

In May 2014, the FASB issued ASU No. 2014-09, which created FASB ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") and superseded ASC Topic 605, "Revenue Recognition." The guidance replaced industry-specific guidance and established a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue"). The core principle of the guidance is that an entity should recognize revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Following the issuance of ASU No. 2014-09, the FASB issued several ASUs that clarified the implementation guidance for ASU No. 2014-09 but did not change the core principle of the guidance. MidAmerican Energy adopted this guidance for all applicable contracts as of January 1, 2018 under a modified retrospective method, and the adoption did not have a cumulative effect impact at the date of initial adoption.

Customer Revenue

MidAmerican Energy recognizes revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. MidAmerican Energy records sales, franchise and excise taxes collected directly from customers and remitted directly to the taxing authorities on a net basis on the Statements of Operations and, accordingly, they do not impact revenue.

Substantially all of MidAmerican Energy's Customer Revenue is derived from tariff-based sales arrangements approved by various regulatory bodies. MidAmerican Energy’sEnergy's electric wholesale and transmission transactions, including the multi valuemulti-value projects, are substantially with the Midcontinent Independent System Operator, Inc. under its tariffs approved by the Federal Energy Regulatory Commission. These tariff-based revenues have performance obligations to deliver energy products and services to customers, which are satisfied over time as energy is delivered or services are provided. Other revenue consists primarily of revenue recognized in accordance with ASC 815, "Derivatives and Hedging."



Revenue recognized is equal to what MidAmerican Energy has the right to invoice as it corresponds directly with the value to the customer of MidAmerican Energy's performance to date and includes billed and unbilled amounts. As of March 31,September 30, 2018 and December 31, 2017, receivables, net on the Balance Sheets relate substantially to Customer Revenue, including unbilled revenue of $77$98 million and $89 million, respectively. Payments for amounts billed are generally due from the customer within 30 days of billing. Rates charged for energy products and services are established by regulators or contractual arrangements that establish the transaction price as well as the allocation of price amongst the separate performance obligations. When preliminary regulated rates are permitted to be billed prior to final approval by the applicable regulator, certain revenue collected may be subject to refund and a liability for estimated refunds is accrued.

The following table summarizes MidAmerican Energy's revenue by line of business and customer class, including a reconciliation to MidAmerican Energy's reportable segment information included in Note 12, for the three-month period ended March 31, 2018 (in millions):
 For the Three-Month Period Ended September 30, 2018
 Electric Natural Gas Other Total
Customer Revenue:       
Retail:       
Residential$233
 $54
 $
 $287
Commercial100
 17
 
 117
Industrial268
 3
 
 271
Natural gas transportation services
 8
 
 8
Other retail46
 1
 
 47
Total retail647
 83
 
 730
Wholesale62
 20
 
 82
Multi-value transmission projects14
 
 
 14
Other Customer Revenue
 
 2
 2
Total Customer Revenue723
 103
 2
 828
Other revenue4
 
 
 4
Total operating revenue$727
 $103
 $2
 $832
For the Nine-Month Period Ended September 30, 2018
Electric Gas Other TotalElectric Natural Gas Other Total
Customer Revenue:              
Retail:              
Residential$161
 $168
 $
 $329
$567
 $287
 $
 $854
Commercial71
 62
 
 133
251
 100
 
 351
Industrial145
 5
 
 150
608
 13
 
 621
Gas transportation services
 13
 
 13
Other retail(1)
10
 (6) 
 4
Natural gas transportation services
 27
 
 27
Other retail113
 1
 
 114
Total retail387
 242
 
 629
1,539
 428
 
 1,967
Wholesale62
 32
 
 94
187
 75
 
 262
Multi value transmission projects15
 
 
 15
Multi-value transmission projects43
 
 
 43
Other Customer Revenue
 
 2
 2

 
 5
 5
Total Customer Revenue464
 274
 2
 740
1,769
 503
 5
 2,277
Other revenue5
 1
 
 6
16
 2
 
 18
Total operating revenue$469
 $275
 $2
 $746
$1,785
 $505
 $5
 $2,295

(1)Other retail includes provisions for potential retail rate refunds, for which any actual refunds will be reflected in the applicable customer classes upon resolution of the related regulatory proceeding. Refer to Note 10 for a discussion of regulatory proceedings related to 2017 Tax Reform.



Contract Assets and Liabilities

In the event one of the parties to a contract has performed before the other, MidAmerican Energy would recognize a contract asset or contract liability depending on the relationship between MidAmerican Energy's performance and the customer's payment. As of March 31, 2017September 30, 2018 and December 31, 2017, there were no contract assets or contract liabilities recorded on the Balance Sheets.

(12)Segment Information

MidAmerican Energy has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost.



The following tables provide information on a reportable segment basis (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Regulated electric$469
 $433
$727
 $707
 $1,785
 $1,677
Regulated gas275
 262
Regulated natural gas103
 103
 505
 485
Other2
 
2
 3
 5
 4
Total operating revenue$746
 $695
$832
 $813
 $2,295
 $2,166
          
Operating income:          
Regulated electric$36
 $63
$278
 $287
 $392
 $475
Regulated gas43
 39
Regulated natural gas1
 (3) 52
 41
Other(1) 
 
 
Total operating income$79
 $102
278
 284
 444
 516
Interest expense(58) (53)(56) (54) (170) (160)
Allowance for borrowed funds4
 2
6
 4
 14
 9
Allowance for equity funds10
 6
16
 11
 39
 25
Other, net9
 11
13
 9
 34
 27
Income before income tax benefit$44
 $68
$257
 $254
 $361
 $417

As ofAs of
March 31,
2018
 December 31,
2017
September 30,
2018
 December 31,
2017
Assets:      
Regulated electric$15,254
 $14,914
$16,066
 $14,914
Regulated gas1,323
 1,403
Regulated natural gas1,322
 1,403
Other3
 1

 1
Total assets$16,580
 $16,318
$17,388
 $16,318






REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Managers and Member of MidAmerican Funding, LLC

Results of Review of Interim Financial Information

We have reviewed the accompanying consolidated balance sheet of MidAmerican Funding, LLC and subsidiaries ("MidAmerican Funding") as of March 31,September 30, 2018, the related consolidated statements of operations for the three-month and nine-month periods ended September 30, 2018 and 2017, and of changes in member's equity and cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB) and in accordance with auditing standards generally accepted in the United States of America, the consolidated balance sheet of MidAmerican Funding as of December 31, 2017, and the related consolidated statements of operations, comprehensive income, changes in member's equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This interim financial information is the responsibility of MidAmerican Funding's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to MidAmerican Funding in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with standards of the PCAOB and with auditing standards generally accepted in the United States of America applicable to reviews of interim financial information. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB and with auditing standards generally accepted in the United States of America, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.


/s/ Deloitte & Touche LLP


Des Moines, Iowa
May 7,November 2, 2018



MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
ASSETS
Current assets:      
Cash and cash equivalents$380
 $172
$115
 $172
Receivables, net320
 348
Income taxes receivable132
 64
Accounts receivable, net385
 348
Income tax receivable150
 64
Inventories208
 245
205
 245
Other current assets138
 134
104
 134
Total current assets1,178
 963
959
 963
      
Property, plant and equipment, net14,282
 14,221
15,246
 14,221
Goodwill1,270
 1,270
1,270
 1,270
Regulatory assets209
 204
230
 204
Investments and restricted investments725
 730
758
 730
Other assets215
 233
208
 233
      
Total assets$17,879
 $17,621
$18,671
 $17,621

The accompanying notes are an integral part of these consolidated financial statements.


MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited) (continued)
(Amounts in millions)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
LIABILITIES AND MEMBER'S EQUITY
Current liabilities:      
Accounts payable$240
 $451
$348
 $451
Accrued interest57
 53
57
 53
Accrued property, income and other taxes119
 133
155
 133
Note payable to affiliate167
 164
158
 164
Current portion of long-term debt500
 350
500
 350
Other current liabilities152
 128
153
 128
Total current liabilities1,235
 1,279
1,371
 1,279
      
Long-term debt5,119
 4,932
5,120
 4,932
Regulatory liabilities1,645
 1,661
Deferred income taxes2,222
 2,235
2,319
 2,235
Regulatory liabilities1,688
 1,661
Asset retirement obligations535
 528
546
 528
Other long-term liabilities317
 326
325
 326
Total liabilities11,116
 10,961
11,326
 10,961
      
Commitments and contingencies (Note 10)
 

 
      
Member's equity:      
Paid-in capital1,679
 1,679
1,679
 1,679
Retained earnings5,084
 4,981
5,666
 4,981
Total member's equity6,763
 6,660
7,345
 6,660
      
Total liabilities and member's equity$17,879
 $17,621
$18,671
 $17,621

The accompanying notes are an integral part of these consolidated financial statements.



MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Regulated electric$469
 $433
$727
 $707
 $1,785
 $1,677
Regulated gas and other278
 263
Regulated natural gas and other105
 108
 512
 493
Total operating revenue747
 696
832
 815
 2,297
 2,170
          
Operating costs and expenses:   
Cost of fuel, energy and capacity108
 102
Cost of gas sold and other180
 172
Operating expenses:       
Cost of fuel and energy140
 130
 366
 342
Cost of natural gas purchased for resale and other50
 54
 297
 289
Operations and maintenance190
 172
201
 206
 599
 563
Depreciation and amortization158
 117
133
 111
 499
 369
Property and other taxes32
 31
30
 30
 92
 90
Total operating costs and expenses668
 594
Total operating expenses554
 531
 1,853
 1,653
          
Operating income79
 102
278
 284
 444
 517
          
Other income (expense):          
Interest expense(63) (59)(61) (59) (185) (177)
Allowance for borrowed funds4
 2
6
 4
 14
 9
Allowance for equity funds10
 6
16
 11
 39
 25
Other, net10
 11
12
 10
 35
 28
Total other income (expense)(39) (40)(27) (34) (97) (115)
          
Income before income tax benefit40
 62
251
 250
 347
 402
Income tax benefit(63) (40)(228) (133) (338) (214)
          
Net income$103
 $102
$479
 $383
 $685
 $616

The accompanying notes are an integral part of these consolidated financial statements.



MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN MEMBER'S EQUITY (Unaudited)
(Amounts in millions)

Paid-in
Capital
 
Retained
Earnings
 
Total
Equity
Paid-in
Capital
 
Retained
Earnings
 
Total Member's
Equity
          
Balance, December 31, 2016$1,679
 $4,407
 $6,086
$1,679
 $4,407
 $6,086
Net income
 102
 102

 616
 616
Balance, March 31, 2017$1,679
 $4,509
 $6,188
Balance, September 30, 2017$1,679
 $5,023
 $6,702
          
Balance, December 31, 2017$1,679
 $4,981
 $6,660
$1,679
 $4,981
 $6,660
Net income
 103
 103

 685
 685
Balance, March 31, 2018$1,679
 $5,084
 $6,763
Balance, September 30, 2018$1,679
 $5,666
 $7,345

The accompanying notes are an integral part of these consolidated financial statements.



MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$103
 $102
$685
 $616
Adjustments to reconcile net income to net cash flows from operating activities:      
Depreciation and amortization158
 117
499
 369
Amortization of utility plant to other operating expenses26
 25
Allowance for equity funds(39) (25)
Deferred income taxes and amortization of investment tax credits19
 13
(35) 64
Changes in other assets and liabilities10
 10
Other, net(9) (6)17
 4
Changes in other operating assets and liabilities:      
Receivables, net27
 41
Accounts receivable and other assets(42) (32)
Inventories37
 22
40
 29
Derivative collateral, net(2) 

 3
Contributions to pension and other postretirement benefit plans, net(3) (3)(10) (8)
Accounts payable(57) 2
Accrued property, income and other taxes, net(83) (73)(65) 96
Other current assets and liabilities28
 (11)
Accounts payable and other liabilities(41) 13
Net cash flows from operating activities228
 214
1,035
 1,154
      
Cash flows from investing activities:      
Capital expenditures(365) (238)(1,466) (1,162)
Purchases of marketable securities(95) (40)(224) (126)
Proceeds from sales of marketable securities74
 35
198
 127
Other, net15
 (3)29
 (13)
Net cash flows from investing activities(371) (246)(1,463) (1,174)
      
Cash flows from financing activities:      
Proceeds from long-term debt687
 843
687
 842
Repayments of long-term debt(350) (255)(350) (255)
Net change in note payable to affiliate2
 8
(6) 21
Net repayments of short-term debt
 (99)
 (99)
Other, net(2) 
Net cash flows from financing activities339
 497
329
 509
      
Net change in cash and cash equivalents and restricted cash and cash equivalents196
 465
(99) 489
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period282
 27
282
 27
Cash and cash equivalents and restricted cash and cash equivalents at end of period$478
 $492
$183
 $516

The accompanying notes are an integral part of these consolidated financial statements.



MIDAMERICAN FUNDING, LLC AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

(1)General

MidAmerican Funding, LLC ("MidAmerican Funding") is an Iowa limited liability company with Berkshire Hathaway Energy Company ("BHE") as its sole member. BHE is a holding company based in Des Moines, Iowa and is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway"). MidAmerican Funding's direct, wholly owned subsidiary is MHC Inc. ("MHC"), which constitutes substantially all of MidAmerican Funding's assets, liabilities and business activities except those related to MidAmerican Funding's long-term debt securities. MHC conducts no business other than the ownership of its subsidiaries and related corporate services. MHC's principal subsidiary is MidAmerican Energy Company ("MidAmerican Energy"), a public utility with electric and natural gas operations. Direct, wholly owned nonregulated subsidiaries of MHC are Midwest Capital Group, Inc. and MEC Construction Services Co.

The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of March 31,September 30, 2018, and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-monththree- and nine-month periods ended March 31,September 30, 2018, are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in MidAmerican Funding's Annual Report on Form 10-K for the year ended December 31, 2017, describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in MidAmerican Funding's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)New Accounting Pronouncements

Refer to Note 2 of MidAmerican Energy's Notes to Financial Statements.

(3)    Cash and Cash Equivalents and Restricted Cash and Cash Equivalents
(3)Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. MidAmerican Funding adopted this guidance January 1, 2018.



Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, consist substantially of funds restricted for the purpose of constructing solid waste facilities under tax-exempt bond obligation agreements. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions):
As of
As ofSeptember 30 December 31
March 31, 2018 December 31, 20172018 2017
      
Cash and cash equivalents$380
 $172
$115
 $172
Restricted cash and cash equivalents in other current assets98
 110
68
 110
Total cash and cash equivalents and restricted cash and cash equivalents$478
 $282
$183
 $282

(4)Property, Plant and Equipment, Net

Refer to Note 4 of MidAmerican Energy's Notes to Financial Statements. In addition to MidAmerican Energy's property, plant and equipment, net, MidAmerican Funding had as of March 31,September 30, 2018 and December 31, 2017, nonregulated property gross of $24 million and related accumulated depreciation and amortization of $11 million and $10 million, respectively, which consisted primarily of a corporate aircraft owned by MHC.

(5)    Recent Financing Transactions
(5)Recent Financing Transactions

Refer to Note 5 of MidAmerican Energy's Notes to Financial Statements.

(6)Income Taxes

Tax Cuts and Jobs Act

The Tax Cuts and Jobs Act ("2017 Tax Reform") impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018, and limitations on bonus depreciation for utility property.

In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin ("SAB") 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. MidAmerican Funding has recorded the impacts of 2017 Tax Reform and believes all the impacts to be complete with the exception of interpretations of the bonus depreciation rules. MidAmerican Funding has determined the amounts recorded and the interpretations relating to this item to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. MidAmerican Funding believes its interpretations for bonus depreciation to be reasonable; however, as the guidance is clarified estimates may change. The accounting is estimated towill be completed by December 2018.

Iowa Senate File 2417

In May 2018, Iowa Senate File 2417 was signed into law, which, among other items, reduces the state of Iowa corporate tax rate from 12% to 9.8% and eliminates corporate federal deductibility, both for tax years starting in 2021. GAAP requires the effect on deferred tax assets and liabilities of a change in tax rates be recognized in the period the tax rate change was enacted. As a result of Iowa Senate File 2417, MidAmerican Funding reduced net deferred income tax liabilities $54 million and decreased deferred income tax benefit by $2 million. As it is probable the change in deferred taxes for MidAmerican Energy will be passed back to customers through regulatory mechanisms, MidAmerican Funding increased net regulatory liabilities by $56 million.



A reconciliation of the federal statutory income tax rate to MidAmerican Funding's effective income tax rate applicable to income before income tax benefit is as follows:
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Federal statutory income tax rate21 % 35 %21 % 35 % 21 % 35 %
Income tax credits(151) (87)(97) (76) (101) (76)
State income tax, net of federal income tax benefit(10) 2
(10) (10) (10) (8)
Effects of ratemaking(20) (13)(5) (2) (7) (4)
Other, net2
 (2)
Effective income tax rate(158)% (65)%(91)% (53)% (97)% (53)%

Income tax credits relate primarily to production tax credits from MidAmerican Energy's wind-powered generating facilities. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities are placed in-service.

Berkshire Hathaway includes BHE and subsidiaries in its United States federal and Iowa state income tax return.returns. Consistent with established regulatory practice, MidAmerican Funding's and MidAmerican Energy's provisions for income taxestax have been computed on a stand-alone basis, and substantially all of their currently payable or receivable income taxes aretax is remitted to or received from BHE. MidAmerican Funding received net cash payments for income taxestax from BHE totaling $14$248 million and $-$386 million for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, respectively.

(7)Employee Benefit Plans

Refer to Note 7 of MidAmerican Energy's Notes to Financial Statements.

(8)    Asset Retirement Obligations
(8)Asset Retirement Obligations

Refer to Note 8 of MidAmerican Energy's Notes to Financial Statements.

(9)Fair Value Measurements

Refer to Note 9 of MidAmerican Energy's Notes to Financial Statements. MidAmerican Funding's long-term debt is carried at cost on the Consolidated Financial Statements. The fair value of MidAmerican Funding's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of MidAmerican Funding's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of MidAmerican Funding's long-term debt (in millions):
 As of March 31, 2018 As of December 31, 2017
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
        
Long-term debt$5,619
 $6,100
 $5,282
 $6,006
 As of September 30, 2018 As of December 31, 2017
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
        
Long-term debt$5,620
 $5,908
 $5,282
 $6,006

(10)    Commitments and Contingencies
(10)Commitments and Contingencies

MidAmerican Funding is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. MidAmerican Funding does not believe that such normal and routine litigation will have a material impact on its consolidated financial results.

Refer to Note 10 of MidAmerican Energy's Notes to Financial Statements.



(11)    Revenue from Contracts with Customers
(11)Revenue from Contracts with Customers

Refer to Note 11 of MidAmerican Energy's Notes to Financial Statements. Additionally, MidAmerican Funding had $1$- million and $2 million of other Accounting Standards Codification Topic 606 revenue for the three-month periodand nine-month periods ended March 31, 2018.September 30, 2018, respectively.




(12)    Segment Information
(12)Segment Information

MidAmerican Funding has identified two reportable segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by regulatory agencies; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance. Common operating costs, interest income, interest expense and income tax expense are allocated to each segment based on certain factors, which primarily relate to the nature of the cost. "Other" in the tables below consists of the financial results and assets of nonregulated operations, MHC and MidAmerican Funding.

The following tables provide information on a reportable segment basis (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Regulated electric$469
 $433
$727
 $707
 $1,785
 $1,677
Regulated gas275
 262
Regulated natural gas103
 103
 505
 485
Other3
 1
2
 5
 7
 8
Total operating revenue$747
 $696
$832
 $815
 $2,297
 $2,170
          
Operating income:          
Regulated electric$36
 $63
$278
 $287
 $392
 $475
Regulated gas43
 39
Regulated natural gas1
 (3) 52
 41
Other(1) 
 
 1
Total operating income79
 102
278
 284
 444
 517
Interest expense(63) (59)(61) (59) (185) (177)
Allowance for borrowed funds4
 2
6
 4
 14
 9
Allowance for equity funds10
 6
16
 11
 39
 25
Other, net10
 11
12
 10
 35
 28
Income before income tax benefit$40
 $62
$251
 $250
 $347
 $402

As ofAs of
March 31,
2018
 December 31,
2017
September 30,
2018
 December 31,
2017
Assets(1):
      
Regulated electric$16,445
 $16,105
$17,257
 $16,105
Regulated gas1,402
 1,482
Regulated natural gas1,401
 1,482
Other32
 34
13
 34
Total assets$17,879
 $17,621
$18,671
 $17,621
(1)Assets by reportable segment reflect the assignment of goodwill to applicable reporting units.



Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations

MidAmerican Funding is an Iowa limited liability company whose sole member is BHE. MidAmerican Funding owns all of the outstanding common stock of MHC Inc., which owns all of the common stock of MidAmerican Energy, Midwest Capital Group, Inc. and MEC Construction Services Co. MidAmerican Energy is a public utility company headquartered in Des Moines, Iowa. MHC Inc., MidAmerican Funding and BHE are also headquartered in Des Moines, Iowa.

The following is management's discussion and analysis of certain significant factors that have affected the consolidated financial condition and results of operations of MidAmerican Funding and its subsidiaries and MidAmerican Energy as presented in this joint filing. Information in Management's Discussion and Analysis related to MidAmerican Energy, whether or not segregated, also relates to MidAmerican Funding. Information related to other subsidiaries of MidAmerican Funding pertains only to the discussion of the financial condition and results of operations of MidAmerican Funding. Where necessary, discussions have been segregated under the heading "MidAmerican Funding" to allow the reader to identify information applicable only to MidAmerican Funding. Explanations include management's best estimate of the impact of weather, customer growth and other factors. This discussion should be read in conjunction with the historical unaudited Financial Statements and Notes to Financial Statements in Part I, Item 1 of this Form 10-Q. MidAmerican Energy's and MidAmerican Funding's actual results in the future could differ significantly from the historical results.

Results of Operations for the Third Quarter and First QuarterNine Months of 2018 and 2017

Overview

MidAmerican Energy -

MidAmerican Energy's net income for the firstthird quarter of 2018 was $106$483 million, an increase of $1$98 million, or 1%25%, compared to 2017 primarily due to higher electric utility margins of $30 million and higher gas utility margins of $6 million, a higher income tax benefit of $95 million from a $53 million increase in recognized production tax credits and a lower federal tax rate due to the impact of 2017 Tax Reform, higher production tax creditselectric utility margin of $6$10 million, higher allowances for borrowed and lower pre-tax income, substantiallyequity funds of $7 million due to higher construction balances for wind-powered generation, and higher natural gas utility margin of $4 million, partially offset by higher depreciation and amortization of $41$22 million from changesadditional plant in-service and Iowa revenue sharing. Electric utility margin increased due to higher retail customer volumes of 6% primarily from industrial growth and the favorable impact of weather, higher wholesale volumes of 37% and higher recoveries through bill riders, partially offset by lower average retail rates of $33 million predominantly from the impact of a lower federal tax rate due to 2017 Tax Reform and higher generation and purchased power costs.

MidAmerican Energy's net income for the first nine months of 2018 was $695 million, an increase of $71 million, or 11%, compared to 2017 primarily due to a higher income tax benefit of $127 million from a lower federal tax rate due to the impact of 2017 Tax Reform and a $44 million increase in accrualsrecognized production tax credits, higher electric utility margin of $84 million, higher allowances for borrowed and equity funds of $19 million due to higher construction balances for wind-powered generation and higher natural gas utility margin of $12 million, partially offset by higher depreciation and amortization of $130 million from Iowa regulatory arrangementsrevenue sharing and additional plant in-service, higher wind-powered generation maintenance of $6$17 million, higher fossil-fueled generation maintenance of $12 million and increases in other operating expenses. Electric utility marginsmargin increased due to higher recoveries through bill riders, higher retail customer volumes of 6.9%7% from industrial growth and the favorable impact of weather and industrial growth and higher transmission revenue,electric wholesale revenues from higher average prices, partially offset by provisions for potential refunds relatedlower average retail rates of $86 million predominantly from the impact of a lower federal tax rate due to regulatory outcomes in response to the 2017 tax reformTax Reform and higher coal-fueled generation and purchased power costs. Gas utility margins increased due to higher retail customer volumes of 20.9% from colder temperatures.

MidAmerican Funding -

MidAmerican Funding's net income for the firstthird quarter of 2018 was $103$479 million, an increase of $1$96 million, or 1%25%, compared to 2017. MidAmerican Funding's net income for the first nine months of 2018 was $685 million, an increase of $69 million, or 11%, compared to 2017. The increases were primarily due to the changes in MidAmerican Energy's earnings discussed above.



Non-GAAP Financial Measure

Management utilizes various key financial measures that are prepared in accordance with GAAP, as well as non-GAAP financial measures such as, Electric Utility Margin and Natural Gas Utility Margin, to help evaluate results of operations. Electric Utility Margin is calculated as regulated electric operating revenue less cost of fuel energy and capacity,energy, which are captions presented on the Statements of Operations. Natural Gas Utility Margin is calculated as regulated natural gas operating revenue less regulated cost of natural gas sold,purchased for resale, which are included in regulated natural gas and other and cost of natural gas soldpurchased for resale and other, respectively, on the Statements of Operations.

MidAmerican Energy’sEnergy's cost of fuel energy and capacityenergy and regulated cost of natural gas soldpurchased for resale are directly recovered from its retail customers through regulatory recovery mechanisms, and as a result, changes in MidAmerican Energy’sEnergy's revenue from the related recovery mechanisms are comparable to changes in such expenses. As such, management believes Electric Utility Margin and Natural Gas Utility Margin more appropriately and concisely explainexplains profitability rather than a discussion of revenue and cost of sales separately. Management believes the presentation of Electric Utility Margin and Natural Gas Utility Margin provides meaningful and valuable insight into the information management considers important to running the business and a measure of comparability to others in the industry.



Electric Utility Margin and Natural Gas Utility Margin is not a measure calculated in accordance with GAAP and should be viewed as a supplement to and not a substitute for operating income, which is the most comparable financial measure prepared in accordance with GAAP. The following table provides a reconciliation of utility margin to MidAmerican Energy's operating income (in millions):
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Electric utility margin:                     
Regulated electric operating revenue $469
 $433
 $36
8 % $727
 $707
 $20
3 % $1,785
 $1,677
 $108
6 %
Cost of fuel, energy and capacity 108
 102
 6
6
Cost of fuel and energy 140
 130
 10
8
 366
 342
 24
7
Electric utility margin 361
 331
 30
9
 587
 577
 10
2
 1,419
 1,335
 84
6
                    ��
Gas utility margin:       
Regulated gas operating revenue 275
 262
 13
5 %
Cost of gas sold 179
 172
 7
4
Gas utility margin 96
 90
 6
7
Natural gas utility margin:              
Regulated natural gas operating revenue 103
 103
 
 % 505
 485
 20
4
Cost of natural gas purchased for resale 50
 54
 (4)(7) 296
 288
 8
3
Natural gas utility margin 53
 49
 4
8
 209
 197
 12
6
                     
Utility margin 457
 421
 36
9 % 640
 626
 14
2 % 1,628
 1,532
 96
6
                     
Other operating revenue 2
 
 2
* 2
 3
 (1)(33) 5
 4
 1
25
Operations and maintenance 190
 171
 19
11 % 201
 204
 (3)(1)% 598
 561
 37
7
Depreciation and amortization 158
 117
 41
35
 133
 111
 22
20
 499
 369
 130
35
Property and other taxes 32
 31
 1
3
 30
 30
 

 92
 90
 2
2
                     
Operating income $79
 $102
 $(23)(23)% $278
 $284
 $(6)(2)% $444
 $516
 $(72)(14)

*    Not meaningful.



Regulated Electric Utility Margin

A comparison of key operating results related to regulated electric utility margin is as follows:
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
Electric utility margin (in millions):                      
Operating revenue$469
 $433
 $36
 8 %$727
 $707
 $20
 3 % $1,785
 $1,677
 $108
 6%
Cost of fuel, energy and capacity108
 102
 6
 6
Cost of fuel and energy140
 130
 10
 8
 366
 342
 24
 7
Electric utility margin$361
 $331
 $30
 9
$587
 $577
 $10
 2
 $1,419
 $1,335
 $84
 6
                      
Electricity Sales (GWh):                      
Residential1,786
 1,569
 217
 14 %1,952
 1,790
 162
 9 % 5,307
 4,753
 554
 12%
Commercial985
 927
 58
 6
1,025
 987
 38
 4
 2,944
 2,796
 148
 5
Industrial3,125
 3,005
 120
 4
3,550
 3,366
 184
 5
 10,158
 9,621
 537
 6
Other403
 392
 11
 3
415
 411
 4
 1
 1,218
 1,185
 33
 3
Total retail6,299
 5,893
 406
 7
6,942
 6,554
 388
 6
 19,627
 18,355
 1,272
 7
Wholesale2,565
 2,713
 (148) (5)2,160
 1,571
 589
 37
 7,179
 7,162
 17
 
Total sales8,864
 8,606
 258
 3
9,102
 8,125
 977
 12
 26,806
 25,517
 1,289
 5
                      
Average number of retail customers (in thousands)777
 766
 11
 1 %780
 771
 9
 1 % 778
 769
 9
 1%
                      
Average revenue per MWh:                      
Retail$61.66
 $60.36
 $1.30
 2 %$93.39
 $98.15
 $(4.76) (5)% $78.63
 $78.62
 $0.01
 %
Wholesale$22.66
 $22.43
 $0.23
 1 %$27.19
 $25.57
 $1.62
 6 % $25.09
 $23.90
 $1.19
 5%
                      
Heating degree days3,335
 2,663
 672
 25 %91
 44
 47
 * 4,126
 3,203
 923
 29%
Cooling degree days784
 752
 32
 4 % 1,295
 1,098
 197
 18%
                      
Sources of energy (GWh)(1):
                      
Coal3,329
 2,962
 367
 12 %4,559
 4,354
 205
 5 % 11,293
 11,019
 274
 2%
Nuclear891
 932
 (41) (4)990
 961
 29
 3
 2,838
 2,820
 18
 1
Natural gas45
 7
 38
 *275
 257
 18
 7
 549
 274
 275
 100
Wind and other(2)
3,985
 3,784
 201
 5
2,428
 1,929
 499
 26
 9,693
 9,129
 564
 6
Total energy generated8,250
 7,685
 565
 7
8,252
 7,501
 751
 10
 24,373
 23,242
 1,131
 5
Energy purchased788
 1,076
 (288) (27)1,054
 812
 242
 30
 3,010
 2,756
 254
 9
Total9,038
 8,761
 277
 3
9,306
 8,313
 993
 12
 27,383
 25,998
 1,385
 5

*Not meaningful.

(1)GWh amounts are net of energy used by the related generating facilities.

(2)All or some of the renewable energy attributes associated with generation from these generating facilities may be: (a) used in future years to comply with renewable portfolio standards or other regulatory requirements or (b) sold to third parties in the form of renewable energy credits or other environmental commodities.


Regulated electric utility margin increased $30$10 million for the third quarter of 2018 compared to 2017 primarily due to:
(1)Higher wholesale utility margin of $14 million due to higher margins per unit, reflecting higher market prices and lower costs, and higher sales volumes;
(2)Higher retail utility margin of $1 million due to -
an increase of $25 million from non-weather-related usage factors, including higher industrial sales volumes;
an increase of $4 million from higher recoveries through bill riders, including lower electric demand-side management ("DSM") program revenue of $2 million (offset in operations and maintenance expense);
an increase of $4 million from various other revenue;
an increase of $2 million from the impact of weather; partially offset by
a decrease of $33 million in average rates predominantly from the impact of a lower federal tax rate due to 2017 Tax Reform; and
a decrease of $1 million from higher retail energy costs; partially offset by
(3)Lower Multi-Value Projects ("MVP") transmission revenue of $5 million due to refund accruals.
Regulated electric utility margin increased $84 million for the first quarternine months of 2018 compared to 2017 primarily due to:
(1)Higher retail utility margin of $22$69 million due to -
an increase of $33$91 million from higher recoveries through bill riders, including $7$10 million of electric DSM program revenue (offset in operatingoperations and maintenance expense);
an increase of $9 million from the impact of colder temperatures;
an increase of $9$52 million from non-weather-related usage factors, including higher industrial sales volumes;
an increase of $30 million from the impact of weather;
an increase of $4 million from various other revenue; partially offset by
a decrease of $22$86 million in averages rates, predominantly from the impact of a provision for potential refunds relatedlower federal tax rate due to regulatory outcomes in response to the 2017 tax reform;Tax Reform; and
a decrease of $7$22 million from higher retail energy costs primarily due to higher coal-fueled generation and purchased power costs;
(2)Higher Multi-Value Projects ("MVPs") transmission revenue of $6 million due to continued capital additions; and
(3)Higher wholesale gross margin of $2$16 million due to higher margins per unit from higher market prices.prices and lower fuel costs; partially offset by
(3)Lower MVP transmission revenue of $1 million due to refund accruals.



Regulated Natural Gas Utility Margin

A comparison of key operating results related to regulated natural gas utility margin is as follows:
First QuarterThird Quarter First Nine Months
2018 2017 Change2018 2017 Change 2018 2017 Change
Gas utility margin (in millions):       
Natural gas utility margin (in millions):               
Operating revenue$275
 $262
 $13
 5 %$103
 $103
 $
  % $505
 $485
 $20
 4 %
Cost of gas sold179
 172
 7
 4
Gas utility margin$96
 $90
 $6
 7
Cost of natural gas purchased for resale50
 54
 (4) (7) 296
 288
 8
 3
Natural gas utility margin$53
 $49
 $4
 8
 $209
 $197
 $12
 6
                      
Natural gas throughput (000's Dth):                      
Residential26,079
 21,118
 4,961
 23 %2,773
 2,773
 
  % 36,493
 29,442
 7,051
 24 %
Commercial12,253
 10,269
 1,984
 19
1,651
 1,788
 (137) (8) 17,661
 14,797
 2,864
 19
Industrial1,416
 1,483
 (67) (5)985
 717
 268
 37
 3,690
 3,070
 620
 20
Other22
 21
 1
 5
3
 2
 1
 50
 33
 29
 4
 14
Total retail sales39,770
 32,891
 6,879
 21
5,412
 5,280
 132
 3
 57,877
 47,338
 10,539
 22
Wholesale sales11,176
 12,599
 (1,423) (11)7,569
 8,815
 (1,246) (14) 27,940
 29,111
 (1,171) (4)
Total sales50,946
 45,490
 5,456
 12
12,981
 14,095
 (1,114) (8) 85,817
 76,449
 9,368
 12
Gas transportation service29,460
 25,359
 4,101
 16
Total gas throughput80,406
 70,849
 9,557
 13
Natural gas transportation service21,876
 19,784
 2,092
 11
 73,968
 65,431
 8,537
 13
Total natural gas throughput34,857
 33,879
 978
 3
 159,785
 141,880
 17,905
 13
                      
Average number of retail customers (in thousands)757
 748
 9
 1 %754
 746
 8
 1 % 755
 747
 8
 1 %
Average revenue per retail Dth sold$5.81
 $6.54
 $(0.73) (11) %$13.90
 $13.33
 $0.57
 4 % $6.95
 $7.93
 $(0.98) (12) %
Average cost of natural gas per retail Dth sold$3.70
 $4.11
 $(0.41) (10) %$5.48
 $5.56
 $(0.08) (1) % $3.81
 $4.33
 $(0.52) (12) %
                      
Combined retail and wholesale average cost of natural gas per Dth sold$3.51
 $3.77
 $(0.26) (7) %$3.86
 $3.82
 $0.04
 1 % $3.44
 $3.76
 $(0.32) (9) %
                      
Heating degree days3,443
 2,809
 634
 23 %92
 45
 47
 * 4,269
 3,406
 863
 25 %

Regulated gas revenue includes purchased gas adjustment clauses through which MidAmerican Energy is allowed to recover the cost of gas sold from its retail gas utility customers. Consequently, fluctuations in the cost of gas sold do not directly affect utility margin or net income because regulated gas revenue reflects comparable fluctuations through the purchased gas adjustment clauses. For the first three months of 2018, MidAmerican Energy's combined retail and wholesale average per-unit cost of gas sold decreased 7%, resulting in a decrease of $13 million in gas revenue and cost of gas sold compared to 2017, partially offset by higher gas sales volumes.


*Not meaningful.

Regulated natural gas utility margin increased $6$4 million for the firstthird quarter of 2018 compared to 2017 primarily due to:
(1)An increase of $9$5 million from rate and non-weather-related usage factors, including the impact of a lower federal tax rate due to 2017 Tax Reform; partially offset by
(2)A decrease of $1 million from lower natural gas DSM program revenue (offset in operations and maintenance expense).
Regulated natural gas utility margin increased $12 million for the first nine months of 2018 compared to 2017 due to:
(1)An increase of $13 million from higher retail sales volumes due to the impact of colder temperatures;
(2)An increase of $2$1 million from higher natural gas transportation services; partially offset by
(3)A decrease of $7$2 million from rate and non-weather-related usage factors, including the impact of a provision for potential refunds relatedlower federal tax rate due to regulatory outcomes in response to the 2017 tax reform.Tax Reform.



Operating Costs and Expenses

MidAmerican Energy -

Operations and maintenance increased $20decreased $3 million for the firstthird quarter of 2018 compared to 2017 primarily due to higher demand side managementlower DSM program expense of $8$3 million, which is recoverable in bill riders and offset in operating revenue, lower fossil-fueled generation maintenance of $3 million due to the timing of planned outages, and lower administrative and other costs, partially offset by higher wind-powered generation maintenance from additional wind turbines of $5 million.

Operations and maintenance increased $37 million for the first nine months of 2018 compared to 2017 primarily due to higher wind-powered generation maintenance from additional wind turbines of $17 million, higher fossil-fueled generation maintenance of $12 million from planned outages, higher DSM program expense of $9 million and higher transmission operations costs from MISO of $3 million, both of which are recoverable in bill riders and offset in operating revenue, partially offset by lower nuclear operations and higher wind-powered generation maintenance from additional wind turbinesexpense of $6$4 million.

Depreciation and amortization increased $41$22 million for the third quarter of 2018 compared to 2017 due to $18 million related to wind-powered generating facilities and other plant placed in-service and $4 million from higher accruals for Iowa revenue sharing.

Depreciation and amortization increased $130 million for the first quarternine months of 2018 compared to 2017 due to higher accruals for Iowa regulatory arrangementsrevenue sharing of $27$83 million and $14$47 million related to wind generationwind-powered generating facilities and other plant placed in-service.

Other Income (Expense)

MidAmerican Energy -

Interest expense increased $5$2 million and $10 million for the third quarter and first quarternine months of 2018, respectively, compared to 2017 primarily due to higher interest expense from the issuance of $700 million of 3.65% first mortgage bonds in February 2018, partially offset by the redemption of $350 million of 5.30% senior notes in March 2018.2018, and additionally for the first nine months comparison, the issuance of $850 million of first mortgage bonds in February 2017.

Allowance for borrowed and equity funds increased $6$7 million and $19 million for the third quarter and first quarternine months of 2018, respectively, compared to 2017 primarily due to higher construction work-in-progress balances related to wind-powered generation.

Other, net increased $4 million and $7 million for the third quarter and first nine months of 2018, respectively, compared to 2017 primarily due to higher returns on corporate-owned life insurance policies, higher income related to amounts other than the service cost for MidAmerican Energy's pension and other postretirement benefit plans and higher interest income from favorable cash positions.



Income Tax Benefit

MidAmerican Energy -

MidAmerican Energy's income tax benefit increased $25$95 million for the firstthird quarter of 2018 compared to 2017, and the effective tax rate was (141)(88)% for 2018 and (54)(52)% for 2017. For the first nine months of 2018 compared to 2017, MidAmerican Energy's income tax benefit increased $127 million in 2018 compared to 2017, and the effective tax rate was (93)% for 2018 and (50)% for 2017. The changes in the effective tax rates for 2018 compared to 2017 were substantially due to an increasethe reduction in recognizedthe United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, the recognition of production tax credits and the effects of ratemaking.

Production tax credits are recognized in earnings for interim periods based on the application of an estimated annual effective tax rate to pretax earnings. Federal renewable electricity production tax credits are earned as energy from qualifying wind-powered generating facilities is produced and sold and are based on a per-kilowatt hour rate pursuant to the applicable federal income tax law. Wind-powered generating facilities are eligible for the credits for 10 years from the date the qualifying generating facilities were placed in-service. Production tax credits recognized in service.the first nine months of 2018 were $349 million, or $43 million higher than the first nine months of 2017, while production tax credits earned in the first nine months of 2018 were $220 million, or $20 million higher than the first nine months of 2017 primarily due to wind-powered generation placed in-service in late 2017, partially offset by facilities no longer eligible to earn production tax credits. The difference between production tax credits recognized and earned of $129 million as of September 30, 2018, will be reflected in earnings over the remainder of 2018.

MidAmerican Funding -

MidAmerican Funding's income tax benefit increased $23$95 million for the firstthird quarter of 20172018 compared to 2016,2017, and the effective tax rate was (158)(91)% for 2018 and (53)% for 2017. For the first nine months of 2018 compared to 2017, MidAmerican Funding's income tax benefit increased $124 million of 2018 compared to 2017, and (65)the effective tax rate was (97)% for 2016.2018 and (53)% for 2017. The changes in the effective tax rates were principally due to the factors discussed for MidAmerican Energy.

Liquidity and Capital Resources

As of March 31,September 30, 2018, MidAmerican Energy's total net liquidity was $915 million consisting of $380 million of cash and cash equivalents and $905 million of credit facilities reduced by $370 million of the credit facilities reserved to support MidAmerican Energy's variable-rate tax-exempt bond obligations. As of March 31, 2018, MidAmerican Funding's total net liquidity was $919 million, including MHC Inc.'s $4 million credit facility.were as follows (in millions):
MidAmerican Energy:
Cash and cash equivalents$115
Credit facilities, maturing 2019 and 2021905
Less:
Tax-exempt bond support(370)
Net credit facilities535
MidAmerican Energy total net liquidity$650
MidAmerican Funding:
MidAmerican Energy total net liquidity$650
MHC, Inc. credit facility, maturing 20194
MidAmerican Funding total net liquidity$654



Operating Activities

MidAmerican Energy's net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, were $230$1,028 million and $222$1,173 million, respectively. MidAmerican Funding's net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, were $228$1,035 million and $214$1,154 million, respectively. Cash flows from operating activities increaseddecreased primarily due to the timing of MidAmerican Energy's income tax cash flows with BHE and greater payments to vendors, partially offset by higher cash gross marginsmargin for MidAmerican Energy's regulated electric business, partially offsetbusiness. MidAmerican Energy's income tax cash flows with BHE totaled net cash receipts in 2018 and 2017 of $232 million and $381 million, respectively. The timing of MidAmerican Energy's income tax cash flows from period to period can be significantly affected by the timing of working capital.estimated federal income tax payment methods and assumptions for each payment date.

In December 2017, the 2017 Tax Reform was enacted which, among other items, reduced the federal corporate tax rate from 35% to 21% effective January 1, 2018 and eliminated bonus depreciation on qualifying regulated utility assets acquired after September 27,December 31, 2017, but did not impact production tax credits. MidAmerican Energy believes for qualifying assets acquired on or before September 27, 2017,December 31, bonus depreciation will be available for 2018 and 2019. MidAmerican Energy anticipates passingis required to pass the benefits of lower tax expense to customers in the form of either rate reductions or rate base reductions. MidAmerican Energy expects lower revenue and income taxestax as well as lower bonus depreciation benefits compared to 2017 as a result of the 2017 Tax Reform and related regulatory treatment. MidAmerican Energy does not expect the 2017 Tax Reform and related regulatory treatment to have a material adverse impact on its cash flows, subject to actual regulatory outcomes.flows. Refer to Regulatory Matters for further discussion of regulatory matters associated with the 2017 Tax Reform. The timing of MidAmerican Energy's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date.

Internal Revenue Service ("IRS") rules provide for re-establishment of the production tax credit for an existing wind-powered generating facility upon the replacement of a significant portion of its components. Such component replacement is commonly referred to as repowering. If the degree of component replacement in such projects meets IRS guidelines, production tax credits are re-established for ten years at rates that depend upon the date in which construction begins, as noted in the above paragraph. MidAmerican Energy’sEnergy's current repowering projects are expected to earn production tax credits at 100% of the value of such credits.

Investing Activities

MidAmerican Energy's net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, were $(371)$(1,463) million and $(246)$(1,171) million, respectively. MidAmerican Funding's net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, were $(371)$(1,463) million and $(246)$(1,174) million, respectively. Net cash flows from investing activities consist almost entirely of capital expenditures, which increased due to higher wind-powered generating facility construction and repowering expenditures. Purchases and proceeds related to marketable securities primarily consist of activity within the Quad Cities Generating Station nuclear decommissioning trust.

Financing Activities

MidAmerican Energy's net cash flows from financing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $337$336 million and $489$488 million, respectively. MidAmerican Funding's net cash flows from financing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017, were $339$329 million and $497$509 million, respectively. In February 2018, MidAmerican Energy issued $700 million of its 3.65% First Mortgage Bonds due August 2048. An amount equal to the net proceeds was used to finance capital expenditures, disbursed during the period from February 2, 2017 to October 31, 2017, with respect to investments in MidAmerican Energy's 2,000-megawatt (nameplate capacity) Wind XI project and the repowering of certain of MidAmerican Energy's existing wind facilities, which were previously financed with MidAmerican Energy's general funds. In March 2018, MidAmerican Energy repaid $350 million of its 5.30% Senior Notes due March 2018. In February 2017, MidAmerican Energy issued $375 million of its 3.10% First Mortgage Bonds due May 2027 and $475 million of its 3.95% First Mortgage Bonds due August 2047. An amount equal to the net proceeds was used to finance capital expenditures disbursed during the period from February 2, 2016 to February 1, 2017, with respect to investments in MidAmerican Energy's 551-megawatt Wind X and 2,000-megawatt Wind XI projects, which were previously financed with MidAmerican Energy's general funds. In February 2017, MidAmerican Energy redeemed in full through optional redemption its $250 million of its 5.95% Senior Notes due July 2017. Through its commercial paper program, MidAmerican Energy made payments totaling $99 million in 2017. MidAmerican Funding received $2repaid $6 million and $8received $21 million in 2018 and 2017, respectively, through its note payable with BHE.



Debt Authorizations and Related Matters

MidAmerican Energy has authority from the FERC to issue through February 28, 2019,July 31, 2020, commercial paper and bank notes aggregating $905 million$1.3 billion at interest rates not to exceed the applicable London Interbank Offered Rate plus a spread of 400 basis points. MidAmerican Energy has a $900 million unsecured credit facility expiring in June 2021 for which MidAmerican Energy may request that the banks extend the credit facility up to two years.one year. The credit facility, which supports MidAmerican Energy's commercial paper program and its variable-rate tax-exempt bond obligations and provides for the issuance of letters of credit, has a variable interest rate based on the Eurodollar rate or a base rate, at MidAmerican Energy's option, plus a spread that varies based on MidAmerican Energy's credit ratings for senior unsecured long-term debt securities. Additionally, MidAmerican Energy has a $5 million unsecured credit facility for general corporate purposes.

MidAmerican Energy currently has an effective registration statement with the SEC to issue an indeterminate amount of long-term debt securities through September 16, 2018.June 26, 2021. Additionally, MidAmerican Energy has authorization from the FERC to issue, through August 31, 2019, preferred stock up to an aggregate of $500 million and long-term debt securities up to an aggregate of $1.5 billion at interest rates not to exceed the applicable United States Treasury rate plus a spread of 175 basis points and from the ICC to issue preferred stock up to an aggregate of $500 million through November 1, 2020, and additional long-term debt securities up to an aggregate of $1.5 billion, of which $500 million expires March 15, 2019, and $1.0 billion expires November 1, 2020.

In conjunction with the March 1999 merger, MidAmerican Energy committed to the IUB to use commercially reasonable efforts to maintain an investment grade rating on its long-term debt and to maintain its common equity level above 42% of total capitalization unless circumstances beyond its control result in the common equity level decreasing to below 39% of total capitalization. MidAmerican Energy must seek the approval of the IUB of a reasonable utility capital structure if MidAmerican Energy's common equity level decreases below 42% of total capitalization, unless the decrease is beyond the control of MidAmerican Energy. MidAmerican Energy is also required to seek the approval of the IUB if MidAmerican Energy's equity level decreases to below 39%, even if the decrease is due to circumstances beyond the control of MidAmerican Energy. If MidAmerican Energy's common equity level were to drop below the required thresholds, MidAmerican Energy's ability to issue debt could be restricted. As of March 31,September 30, 2018, MidAmerican Energy's common equity ratio was 53%52% computed on a basis consistent with its commitment.

Future Uses of Cash

MidAmerican Energy and MidAmerican Funding have available a variety of sources of liquidity and capital resources, both internal and external, including net cash flows from operating activities, public and private debt offerings, the issuance of commercial paper, the use of unsecured revolving credit facilities, and other sources. These sources are expected to provide funds required for current operations, capital expenditures, debt retirements and other capital requirements. The availability and terms under which MidAmerican Energy and MidAmerican Funding have access to external financing depends on a variety of factors, including their credit ratings, investors' judgment of risk and conditions in the overall capital markets, including the condition of the utility industry.

Capital Expenditures

MidAmerican Energy has significant future capital requirements. Capital expenditure needs are reviewed regularly by management and may change significantly as a result of these reviews, which may consider, among other factors, impacts to customers' rates; changes in environmental and other rules and regulations; outcomes of regulatory proceedings; changes in income tax laws; general business conditions; load projections; system reliability standards; the cost and efficiency of construction labor, equipment and materials; commodity prices; and the cost and availability of capital.



MidAmerican Energy's historical and forecast capital expenditures, each of which exclude amounts for non-cash equity AFUDC and other non-cash items, are as follows (in millions):
Three-Month Periods AnnualNine-Month Periods Annual
Ended March 31, ForecastEnded September 30, Forecast
2017 2018 20182017 2018 2018
          
Wind-powered generation$29
 $16
 $1,255
$455
 $704
 $1,254
Wind-powered generation repowering
 70
 273
272
 233
 284
Transmission Multi-Value Projects8
 2
 46
18
 33
 52
Other201
 277
 901
417
 496
 775
Total$238
 $365
 $2,475
$1,162
 $1,466
 $2,365

MidAmerican Energy's forecast capital expenditures for 2018 include the following:

The construction of wind-powered generating facilities in Iowa. In August 2016, the IUB issued an order approving ratemaking principles related to MidAmerican Energy's construction of up to 2,000 MW (nominal ratings) of additional wind-powered generating facilities expected to be placed in service in 2017 through 2019, including 334 MW (nominal ratings) placed in-service in 2017. The ratemaking principles establish a cost cap of $3.6 billion, including AFUDC, and a fixed rate of return on equity of 11.0% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding. The cost cap ensures that as long as total costs are below the cap, the investment will be deemed prudent in any future Iowa rate proceeding. Additionally, the ratemaking principles modify the revenue sharing mechanism in effect prior to 2018. The revised sharing mechanism, which was effective January 1, 2018, will be triggered each year by actual equity returns exceeding a weighted average return on equity for MidAmerican Energy calculated annually. Pursuant to the change in revenue sharing, MidAmerican Energy will share 100% of the revenue in excess of this trigger with customers. Such revenue sharing will reduce coal and nuclear generation rate base, which is intended to mitigate future base rate increases. MidAmerican Energy expects all of these wind-powered generating facilities to qualify for 100% of production tax credits available.
The repowering of certain existing wind-powered generating facilities in Iowa. This project entails the replacement of significant components of the oldest turbines in MidAmerican Energy's fleet. The energy production from such repowered facilities is expected to qualify for 100% of the federal production tax credits available for ten years following each facility's return to service. Under MidAmerican Energy's Iowa electric tariff, federal production tax credits related to facilities that were in-service prior to 2013 must be included in its Iowa energy adjustment clause. In August 2017, the IUB approved a tariff change that excludes from MidAmerican Energy's Iowa energy adjustment clause any future federal production tax credits related to these repowered facilities.
Transmission MVP investments. In 2012, MidAmerican Energy started the construction of four MVPs located in Iowa and Illinois that were approved by the Midcontinent Independent System Operator, Inc. When complete, the four MVPs will have added approximately 250 miles of 345 kV transmission line to MidAmerican Energy's transmission system and will be owned and operated by MidAmerican Energy. As of March 31,September 30, 2018, 224 miles of these MVP transmission lines have been placed in-service.
Remaining costs primarily relate to routine expenditures for generation, transmission, distribution and other infrastructure needed to serve existing and expected demand.



In May 2018, MidAmerican Energy filed with the IUB an application for ratemaking principles related to the construction of up to 591 MW (nominal ratings) of additional wind-powered generating facilities ("Wind XII") expected to be placed in-service by the end of 2020. The filing, which is subject to IUB approval, establishes a cost cap of $922 million, including AFUDC, a fixed rate of return on equity of 11.25% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding, and maintains the revenue sharing mechanism currently in effect. The cost cap ensures that as long as total costs are below the cap, the investment will be deemed prudent in any future Iowa rate proceeding. In September 2018, MidAmerican Energy filed with the IUB a settlement agreement signed by a majority of the parties to the ratemaking principles proceeding for Wind XII. The settlement agreement, which is subject to IUB approval, establishes a fixed rate of return on equity of 11.0% over the proposed 40-year useful lives of those facilities in any future Iowa rate proceeding and provides that all Iowa retail energy benefits from Wind XII will be excluded from the Iowa energy adjustment clause and, instead, will reduce rate base. Additionally, the settlement agreement modifies the current revenue sharing mechanism, effective January 1, 2019, such that revenue sharing will be triggered each year by actual equity returns above a threshold calculated annually or 11%, whichever is less, and MidAmerican Energy will share with customers 90% of the revenue in excess of the trigger, instead of the current 100% sharing. The calculated threshold will be the year-end weighted average of equity returns for rate base as authorized via ratemaking principles proceedings and, for remaining rate base, interest rates on 30-year single A-rated utility bond yields plus 400 basis points, with a minimum return of 9.5%. MidAmerican Energy expects all of these wind-powered generating facilities to qualify for 100% of production tax credits available.

Contractual Obligations

As of March 31,September 30, 2018, there have been no material changes outside the normal course of business in MidAmerican Energy's and MidAmerican Funding's contractual obligations from the information provided in Item 7 of their Annual Report on Form 10-K for the year ended December 31, 2017.




Regulatory Matters

MidAmerican Energy is subject to comprehensive regulation. Refer to "Regulatory Matters" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for discussion regarding MidAmerican Energy's current regulatory matters.

Quad Cities Generating Station Operating Status

Exelon Generation Company, LLC ("Exelon Generation"), the operator of Quad Cities Generating Station Units 1 and 2 ("Quad Cities Station") of which MidAmerican Energy has a 25% ownership interest, announced on June 2, 2016, its intention to shut down Quad Cities Station on June 1, 2018, as a result of Illinois not passing adequate legislation and Quad Cities Station not clearing the 2019-2020 PJM Interconnection, L.L.C. capacity auction. MidAmerican Energy expressed to Exelon Generation its desire for the continued operation of the facility through the end of its operating license in 2032 and worked with Exelon Generation on solutions to that end. In December 2016, Illinois passed legislation creating a zero emission standard, which went into effect June 1, 2017. The zero emission standard requires the Illinois Power Agency to purchase zero emission credits ("ZECs") and recover the costs from certain ratepayers in Illinois, subject to certain limitations. The proceeds from the zero emission credits will provide Exelon Generation additional revenue through 2027 as an incentive for continued operation of Quad Cities Station. For the nuclear assets already in rate base, MidAmerican Energy's customers will not be charged for the subsidy, and MidAmerican Energy will not receive additional revenue from the subsidy.

On February 14, 2017, two lawsuits were filed with the United States District Court for the Northern District of Illinois ("Northern District of Illinois") against the Illinois Power Agency alleging that the state's zero emission credit program violates certain provisions of the U.S. Constitution. Both complaints argue that the Illinois zero emission credit program will distort the FERC's energy and capacity market auction system of setting wholesale prices. As majority owner and operator of Quad Cities Station, Exelon Generation intervened and filed motions to dismiss in both matters. On July 14, 2017, the Northern District of Illinois granted the motions to dismiss. On July 17, 2017, the plaintiffs filed appeals with the United States Court of Appeals for the Seventh Circuit. Parties haveCircuit ("Seventh Circuit"). On May 29, 2018, the U.S. Department of Justice and the FERC filed briefsan amicus brief concluding federal rules do not preempt Illinois' ZEC program. On September 13, 2018, the Seventh Circuit upheld the Northern District of Illinois' ruling concluding that Illinois' ZEC program does not violate the Federal Power Act and presented oral argument. MidAmerican Energy cannot predict the outcome of these lawsuits.is thus constitutional.

On January 9, 2017, the Electric Power Supply Association filed two requests with the FERC seeking to expand Minimum Offer Price Rule ("MOPR") provisions to apply to existing resources receiving zero emission credit compensation. If successful, an expanded MOPR could result in an increased risk of Quad Cities Station not clearing in future capacity auctions and Exelon Generation no longer receiving capacity revenues for the facility. As majority owner and operator of Quad Cities Station, Exelon Generation has filed protests at the FERC in response to each filing. The timing of the FERC's decision with respect to both proceedings is currently unknown and the outcome of these matters is currently uncertain.



Environmental Laws and Regulations

MidAmerican Energy is subject to federal, state and local laws and regulations regarding air and water quality, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact its current and future operations. In addition to imposing continuing compliance obligations and capital expenditure requirements, these laws and regulations provide regulators with the authority to levy substantial penalties for noncompliance including fines, injunctive relief and other sanctions. These laws and regulations are administered by the EPA and various state and local agencies. All such laws and regulations are subject to a range of interpretation, which may ultimately be resolved by the courts. Environmental laws and regulations continue to evolve, and MidAmerican Energy is unable to predict the impact of the changing laws and regulations on its operations and consolidated financial results. MidAmerican Energy believes it is in material compliance with all applicable laws and regulations. Refer to "Liquidity and Capital Resources" for discussion of MidAmerican Energy's forecast environmental-related capital expenditures.

Refer to "Environmental Laws and Regulations" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for additional information regarding environmental laws and regulations.

New Accounting Pronouncements

For a discussion of new accounting pronouncements affecting MidAmerican Energy and MidAmerican Funding, refer to Note 2 of Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q.




Critical Accounting Estimates

Certain accounting measurements require management to make estimates and judgments concerning transactions that will be settled several years in the future. Amounts recognized on the Financial Statements based on such estimates involve numerous assumptions subject to varying and potentially significant degrees of judgment and uncertainty and will likely change in the future as additional information becomes available. Estimates are used for, but not limited to, the accounting for the effects of certain types of regulation, derivatives, impairment of goodwill and long-lived assets, pension and other postretirement benefits, income taxes and revenue recognition - unbilled revenue. For additional discussion of MidAmerican Energy's and MidAmerican Funding's critical accounting estimates, see Item 7 of their Annual Report on Form 10-K for the year ended December 31, 2017. There have been no significant changes in MidAmerican Energy's and MidAmerican Funding's assumptions regarding critical accounting estimates since December 31, 2017.


Nevada Power Company and its subsidiaries
Consolidated Financial Section



PART I
Item 1.Financial Statements


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Shareholder of Nevada Power Company

Results of Review of Interim Financial Information

We have reviewed the accompanying consolidated balance sheet of Nevada Power Company and subsidiaries ("Nevada Power") as of March 31,September 30, 2018, the related consolidated statements of operations for the three-month and nine-month periods ended March 31,September 30, 2018 and 2017, and of changes in shareholder's equity and cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of Nevada Power as of December 31, 2017, and the related consolidated statements of operations, changes in shareholder's equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This interim financial information is the responsibility of Nevada Power's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the CompanyNevada Power in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.


/s/ Deloitte & Touche LLP


Las Vegas, Nevada
May 7,November 2, 2018



NEVADA POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Amounts in millions, except share data)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
ASSETS
Current assets:      
Cash and cash equivalents$97
 $57
$80
 $57
Accounts receivable, net191
 238
368
 238
Inventories58
 59
58
 59
Regulatory assets28
 28
16
 28
Other current assets59
 44
79
 44
Total current assets433
 426
601
 426
      
Property, plant and equipment, net6,855
 6,877
6,830
 6,877
Regulatory assets928
 941
880
 941
Other assets38
 35
41
 35
      
Total assets$8,254
 $8,279
$8,352
 $8,279
      
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities:      
Accounts payable$125
 $156
$168
 $156
Accrued interest39
 50
33
 50
Accrued property, income and other taxes70
 63
128
 63
Regulatory liabilities104
 91
51
 91
Current portion of long-term debt and financial and capital lease obligations1,340
 842
519
 842
Customer deposits61
 73
64
 73
Other current liabilities46
 16
43
 16
Total current liabilities1,785
 1,291
1,006
 1,291
      
Long-term debt and financial and capital lease obligations1,732
 2,233
2,297
 2,233
Regulatory liabilities1,015
 1,030
1,123
 1,030
Deferred income taxes764
 767
757
 767
Other long-term liabilities280
 280
264
 280
Total liabilities5,576
 5,601
5,447
 5,601
      
Commitments and contingencies (Note 10)
 

 
      
Shareholder's equity:      
Common stock - $1.00 stated value; 1,000 shares authorized, issued and outstanding
 

 
Other paid-in capital2,308
 2,308
Additional paid-in capital2,308
 2,308
Retained earnings374
 374
601
 374
Accumulated other comprehensive loss, net(4) (4)(4) (4)
Total shareholder's equity2,678
 2,678
2,905
 2,678
      
Total liabilities and shareholder's equity$8,254
 $8,279
$8,352
 $8,279
      
The accompanying notes are an integral part of the consolidated financial statements.



NEVADA POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Operating revenue$395
 $392
$820
 $819
 $1,777
 $1,785
          
Operating costs and expenses:   
Cost of fuel, energy and capacity170
 165
Operating expenses:       
Cost of fuel and energy331
 318
 740
 721
Operations and maintenance91
 88
146
 96
 344
 276
Depreciation and amortization84
 76
85
 77
 253
 231
Property and other taxes10
 10
11
 10
 31
 29
Total operating costs and expenses355
 339
Total operating expenses573
 501
 1,368
 1,257
          
Operating income40
 53
247
 318
 409
 528
          
Other income (expense):          
Interest expense(45) (44)(38) (44) (128) (132)
Allowance for borrowed funds
 1
 1
 1
Allowance for equity funds1
 1
1
 
 2
 1
Other, net4
 5
7
 4
 16
 16
Total other income (expense)(40) (38)(30) (39) (109) (114)
          
Income before income tax expense
 15
217
 279
 300
 414
Income tax expense
 5
53
 103
 72
 151
Net income$
 $10
$164
 $176
 $228
 $263
          
The accompanying notes are an integral part of these consolidated financial statements.The accompanying notes are an integral part of these consolidated financial statements.  The accompanying notes are an integral part of these consolidated financial statements.  



NEVADA POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDER'S EQUITY (Unaudited)
(Amounts in millions, except shares)

         Accumulated           Accumulated  
     Other   Other Total     Additional   Other Total
 Common Stock Paid-in Retained Comprehensive Shareholder's Common Stock Paid-in Retained Comprehensive Shareholder's
 Shares Amount Capital Earnings Loss, Net Equity Shares Amount Capital Earnings Loss, Net Equity
                        
Balance, December 31, 2016 1,000
 $
 $2,308
 $667
 $(3) $2,972
 1,000
 $
 $2,308
 $667
 $(3) $2,972
Net income 
 
 
 10
 
 10
 
 
 
 263
 
 263
Dividends declared 
 
 
 (75) 
 (75) 
 
 
 (412) 
 (412)
Balance, March 31, 2017 1,000
 $
 $2,308
 $602
 $(3) $2,907
Balance, September 30, 2017 1,000
 $
 $2,308
 $518
 $(3) $2,823
                        
Balance, December 31, 2017 1,000
 $
 $2,308
 $374
 $(4) $2,678
 1,000
 $
 $2,308
 $374
 $(4) $2,678
Net income 
 
 
 
 
 
 
 
 
 228
 
 228
Balance, March 31, 2018 1,000
 $
 $2,308
 $374
 $(4) $2,678
Other equity transactions 
 
 
 (1) 
 (1)
Balance, September 30, 2018 1,000
 $
 $2,308
 $601
 $(4) $2,905
                        
The accompanying notes are an integral part of these consolidated financial statements.



NEVADA POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$
 $10
$228
 $263
Adjustments to reconcile net income to net cash flows from operating activities:      
Gain on marketable securities(1) 
Gain on nonrecurring items
 (1)
Depreciation and amortization84
 76
253
 231
Deferred income taxes and amortization of investment tax credits(7) 22
Allowance for equity funds(1) (1)(2) (1)
Changes in regulatory assets and liabilities10
 3
75
 25
Deferred income taxes and amortization of investment tax credits(7) 61
Deferred energy
 (25)12
 (22)
Amortization of deferred energy3
 3
13
 13
Other, net9
 (2)9
 (1)
Changes in other operating assets and liabilities:      
Accounts receivable and other assets48
 52
(138) (125)
Inventories1
 7
1
 6
Accrued property, income and other taxes(1) (26)
Accrued property, income and other taxes, net54
 11
Accounts payable and other liabilities(36) (29)(11) 9
Net cash flows from operating activities110
 90
486
 469
      
Cash flows from investing activities:      
Capital expenditures(64) (58)(203) (202)
Acquisitions
 (77)
 (77)
Other, net1
 4
Net cash flows from investing activities(64) (135)(202) (275)
      
Cash flows from financing activities:      
Proceeds from long-term debt573
 91
Repayments of long-term debt and financial and capital lease obligations(5) (79)(836) (86)
Dividends paid
 (75)
 (412)
Net cash flows from financing activities(5) (154)(263) (407)
      
Net change in cash and cash equivalents and restricted cash and cash equivalents41
 (199)21
 (213)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period66
 290
66
 290
Cash and cash equivalents and restricted cash and cash equivalents at end of period$107
 $91
$87
 $77
      
The accompanying notes are an integral part of these consolidated financial statements.



NEVADA POWER COMPANY AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

(1)    General
(1)General

Nevada Power Company, together with its subsidiaries ("Nevada Power"), is a wholly owned subsidiary of NV Energy, Inc. ("NV Energy"), a holding company that also owns Sierra Pacific Power Company ("Sierra Pacific") and certain other subsidiaries. Nevada Power is a United States regulated electric utility company serving retail customers, including residential, commercial and industrial customers, primarily in the Las Vegas, North Las Vegas, Henderson and adjoining areas. NV Energy is an indirect wholly owned subsidiary of Berkshire Hathaway Energy Company ("BHE"). BHE is a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHEand is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway").

The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of March 31,September 30, 2018 and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in Nevada Power's Annual Report on Form 10-K for the year ended December 31, 2017 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in Nevada Power's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)    New Accounting Pronouncements
(2)New Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB")FASB issued Accounting Standards Update ("ASU")ASU No. 2016-02, which creates FASB Accounting Standards Codification ("ASC")ASC Topic 842, "Leases" and supersedes Topic 840 "Leases." This guidance increases transparency and comparability among entities by recording lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. In JanuaryDuring 2018, the FASB issued several ASUs that clarified the implementation guidance and provided optional transition practical expedients for ASU No. 2016-02 including ASU No. 2018-01 that provides for an optional transition practical expedient allowingallows companies to not have to evaluateforgo evaluating existing land easements if they were not previously accounted for under ASC Topic 840, "Leases.""Leases" and ASU No. 2018-11 allowing companies to apply the new guidance at the adoption date with the cumulative-effect adjustment to the opening balance of retained earnings recognized in the period of adoption. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach. Nevada Power plans to adopt this guidance effective January 1, 2019 and is currently in the process of evaluating the impact on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.



(3)    Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
   As of
 Depreciable Life March 31, December 31,
  2018 2017
Utility plant:     
Generation30 - 55 years $3,707
 $3,707
Distribution20 - 65 years 3,329
 3,314
Transmission45 - 70 years 1,864
 1,860
General and intangible plant5 - 65 years 805
 793
Utility plant  9,705
 9,674
Accumulated depreciation and amortization  (2,930) (2,871)
Utility plant, net  6,775
 6,803
Other non-regulated, net of accumulated depreciation and amortization45 years 2
 1
Plant, net  6,777
 6,804
Construction work-in-progress  78
 73
Property, plant and equipment, net  $6,855
 $6,877

During 2017, Nevada Power revised its electric depreciations rates effective January 2018 based on the results of a new depreciation study, the most significant impact of which was shorter estimated useful lives at the Navajo Generating Station and longer average service lives for various other utility plant groups. The net effect of these changes will increase depreciation and amortization expense by $7 million annually, or $2 million for the three-month period ended March 31, 2018, based on depreciable plant balances at the time of the change.

(43)
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Nevada Power adopted this guidance January 1, 2018.



Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, consist of funds restricted by the Public Utilities Commission of Nevada ("PUCN") for a certain renewable energy contract. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Cash and cash equivalents$97
 $57
$80
 $57
Restricted cash and cash equivalents included in other current assets10
 9
7
 9
Total cash and cash equivalents and restricted cash and cash equivalents$107
 $66
$87
 $66

(4)Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
   As of
 Depreciable Life September 30, December 31,
  2018 2017
Utility plant:     
Generation30 - 55 years $3,702
 $3,707
Distribution20 - 65 years 3,373
 3,314
Transmission45 - 70 years 1,864
 1,860
General and intangible plant5 - 65 years 820
 793
Utility plant  9,759
 9,674
Accumulated depreciation and amortization  (3,026) (2,871)
Utility plant, net  6,733
 6,803
Other non-regulated, net of accumulated depreciation and amortization45 years 1
 1
Plant, net  6,734
 6,804
Construction work-in-progress  96
 73
Property, plant and equipment, net  $6,830
 $6,877

During 2017, Nevada Power revised its electric depreciations rates effective January 2018 based on the results of a new depreciation study, the most significant impact of which was shorter estimated useful lives at the Navajo Generating Station and longer average service lives for various other utility plant groups. The net effect of these changes will increase depreciation and amortization expense by $7 million annually, or $5 million for the nine-month period ended September 30, 2018, based on depreciable plant balances at the time of the change.



(5)    Regulatory Matters
(5)Regulatory Matters

Deferred Energy

Nevada statutes permit regulated utilities to adopt deferred energy accounting procedures. The intent of these procedures is to ease the effect on customers of fluctuations in the cost of purchased natural gas, fuel and electricity and are subject to annual prudency review by the PUCN. Under deferred energy accounting, to the extent actual fuel and purchased power costs exceed fuel and purchased power costs recoverable through current rates that excess is not recorded as a current expense on the Consolidated Statements of Operations but rather is deferred and recorded as a regulatory asset on the Consolidated Balance Sheets. Conversely, a regulatory liability is recorded to the extent fuel and purchased power costs recoverable through current rates exceed actual fuel and purchased power costs. These excess amounts are reflected in quarterly adjustments to rates and recorded as cost of fuel energy and capacityenergy in future time periods.

Regulatory Rate Review

In June 2017, Nevada Power filed an electric regulatory rate review with the PUCN. The filing supported an annual revenue increase of $29 million, or 2%, but requested no incremental annual revenue relief. In December 2017, the PUCN issued an order which reduced Nevada Power's revenue requirement by $26 million and requires Nevada Power to share 50% of revenues related to equity returnsregulatory earnings above 9.7%. As a result of the order, Nevada Power recorded expense of $28 million in December 2017 primarily due to the reduction of a regulatory asset to return to customers revenue collected for costs not incurred. The new rates were effective on February 15, 2018. In January 2018, Nevada Power filed a petition for clarification of certain findings and directives in the order and intervening parties filed motions for reconsideration. The PUCN has not yet ruled on the filed motions. Nevada Power cannot predict the timing or ultimate outcome of the PUCN rulings.

The Tax Cuts and Jobs Act ("2017 Tax Reform") enacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. In February 2018, Nevada Power made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from the 2017 Tax Reform for 2018 and beyond. The filing supports an annual rate reduction of $59 million. In March 2018, the PUCN issued an order approving the rate reduction proposed by Nevada Power. The new rates were effective April 1, 2018. The order has extended the procedural schedule to allow parties additional discovery relevant to 2017 Tax Reform and a hearing was held in July 2018. In September 2018, the PUCN issued an order directing Nevada Power to record the amortization of any excess protected accumulated deferred income tax arising from the 2017 Tax Reform withas a hearing scheduled in Juneregulatory liability effective January 1, 2018. Nevada Power cannot predict the timing or ultimate outcome of further regulatory proceedings.

Chapter 704B Applications

Chapter 704B of the Nevada Revised Statutes allows retail electric customers with an average annual load of one megawatt ("MW") or more to file with the PUCN an application to purchase energy from alternative providers of a new electric resource and become distribution only service customers. On a case-by-case basis, the PUCN will assess the application and may deny or grant the application subject to conditions, including paying an impact fee, paying on-going charges and receiving approval for specific alternative energy providers and terms. The impact fee and on-going charges are assessed to alleviate the burden on other Nevada customers for the applicant's share of previously committed investments and long-term renewable contracts and are set at a level designed such that the remaining customers are not subjected to increased costs.

In October 2016, Wynn Las Vegas, LLC ("Wynn"), became a distribution only service customer and started procuring energy from another energy supplier. In April 2017, Wynn filed a motion with the PUCN seeking relief from the January 2016 order that established the impact fee that was paid in September 2016 and requested the PUCN adopt an alternative impact fee and revise on-going charges associated with retirement of assets and high cost renewable contracts. This request is still pending.In September 2018, the PUCN granted relief requiring Nevada Power to credit $3 million as an offset against Wynn's remaining impact fee obligation. In October 2018, Wynn elected to pay the net present value lump sum of its Renewable Base Tariff Energy Rate obligation of $2 million, net of the credit of $3 million. The PUCN ordered Nevada Power to establish a regulatory liability and amortize the lump sum payment amount in equal monthly installments through December 2022.



In November 2016, Caesars Enterprise Service ("Caesars"), a customer of Nevada Power, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Nevada Power. In March 2017, the PUCN approved the application allowing Caesars to purchase energy from alternative providers subject to conditions, including paying an impact fee. In March 2017, Caesars provided notice that it intends to pay the impact fee and proceed with purchasing energy from alternative providers. In July 2017, Caesars made the required compliance filings and, in September 2017, the PUCN issued an order allowing Caesars to acquire electric energy and ancillary services from another energy supplier and become a distribution only service customer of Nevada Power. In December 2017, Caesars provided notice that it intends to transition eligible meters in the Nevada Power service territory to unbundled electric service in February 2018 at the earliest. In February 2018, Caesars became a distribution only service customer and started procuring energy from another energy supplier. Following the PUCN’sPUCN's order from March 2017, Caesars’Caesars' will pay an impact fee of $44 million in 72 equal monthly payments.


In June 2018, Station Casinos LLC ("Station"), a customer of Nevada Power, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Nevada Power. In October 2018, the PUCN approved a stipulation allowing Station to purchase energy from alternative providers subject to conditions, including paying an impact fee of $15 million.

(6)
(6)
Recent Financing Transactions

Long-Term Debt

In April 2018, Nevada Power issued $575 million of its 2.75% General and Refunding Mortgage Notes, Series BB, due April 2020. Nevada Power intends to useused a portion of the net proceeds together with available cash, to repay all of Nevada Power's $325 million 6.50% General and Refunding Mortgage Notes, Series O, maturing in May 2018. In August 2018, and a portionNevada Power used the remaining net proceeds, together with available cash, to repay all of Nevada Power's $500 million 6.50% General and Refunding Mortgage Notes, Series S, maturing in August 2018 and for general corporate purposes.2018.

Credit Facilities

In April 2018, Nevada Power amended and restated its existing $400 million secured credit facility, expiring June 2020, extending the expiration date to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.

(7)
(7)Income Taxes

Tax Cuts and Jobs Act

2017 Tax Reform impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018, the elimination of the deduction for production activities and limitations on bonus depreciation for utility property.

In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. Nevada Power has recorded the impacts of the 2017 Tax Reform and believes all the impacts to be complete with the exception of interpretations of the bonus depreciation rules. Nevada Power has determined the amounts recorded and the interpretations relating to this items to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. Nevada Power believes its interpretations for bonus depreciation to be reasonable, however, as the guidance is clarified estimates may change. Nevada Power recorded a current tax benefit and deferred tax expense of $12 million during the three-month period ended September 30, 2018 following clarified bonus depreciation guidance. As a result of 2017 Tax Reform and Nevada Power's regulatory nature, Nevada Power reduced the associated deferred income tax liabilities $5 million and increased regulatory liabilities by the same amount. The accounting is estimated towill be completed by December 2018.



A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows:
 Three-Month Periods Nine-Month Periods
 Ended September 30, Ended September 30,
 2018 2017 2018 2017
        
Federal statutory income tax rate21 % 35% 21% 35%
Nondeductible expenses3
 

3


Effects of ratemaking1
 
 
 
Other(1) 2
 
 1
Effective income tax rate24 %
37%
24%
36%

(8)    Employee Benefit Plans

Nevada Power is a participant in benefit plans sponsored by NV Energy. The NV Energy Retirement Plan includes a qualified pension plan ("Qualified Pension Plan") and a supplemental executive retirement plan and a restoration plan (collectively, "Non‑Qualified Pension Plans") that provide pension benefits for eligible employees. The NV Energy Comprehensive Welfare Benefit and Cafeteria Plan provides certain postretirement health care and life insurance benefits for eligible retirees ("Other Postretirement Plans") on behalf of Nevada Power. Nevada Power contributed $19 million to the Qualified Pension Plan and $1 million to the Non-Qualified Pension Plans for the nine-month period ended September 30, 2018. Amounts attributable to Nevada Power were allocated from NV Energy based upon the current, or in the case of retirees, previous, employment location. Offsetting regulatory assets and liabilities have been recorded related to the amounts not yet recognized as a component of net periodic benefit costs that will be included in regulated rates. Net periodic benefit costs not included in regulated rates are included in accumulated other comprehensive loss, net.

Amounts receivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Qualified Pension Plan -   
Qualified Pension Plan:   
Other long-term liabilities$(23) $(23)$(4) $(23)
      
Non-Qualified Pension Plans:      
Other current liabilities(1) (1)(1) (1)
Other long-term liabilities(10) (10)(10) (10)
      
Other Postretirement Plans -   
Other Postretirement Plans:   
Other assets1
 
Other long-term liabilities1
 1

 1



(9)Fair Value Measurements

The carrying value of Nevada Power's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. Nevada Power has various financial assets and liabilities that are measured at fair value on the Consolidated Balance Sheets using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows:

Level 1 Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that Nevada Power has the ability to access at the measurement date.
Level 2 Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).
Level 3 Unobservable inputs reflect Nevada Power's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. Nevada Power develops these inputs based on the best information available, including its own data.

The following table presents Nevada Power's assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions):
Input Levels for Fair Value Measurements  Input Levels for Fair Value Measurements  
Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total
As of March 31, 2018       
As of September 30, 2018       
Assets:              
Commodity derivatives$
 $
 $1
 $1
Money market mutual funds(1)
$91
 $
 $
 $91
67
 
 
 67
Investment funds2
 
 
 2
2
 
 
 2
$93
 $
 $
 $93
$69
 $
 $1
 $70
              
Liabilities - commodity derivatives$
 $
 $(8) $(8)$
 $
 $(8) $(8)
              
As of December 31, 2017              
Assets - investment funds$2
 $
 $
 $2
$2
 $
 $
 $2
              
Liabilities - commodity derivatives$
 $
 $(3) $(3)$
 $
 $(3) $(3)

(1)Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.



Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which Nevada Power transacts. When quoted prices for identical contracts are not available, Nevada Power uses forward price curves. Forward price curves represent Nevada Power's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. Nevada Power bases its forward price curves upon internally developed models, with internal and external fundamental data inputs. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to markets that are not active. Given that limited market data exists for these contracts, Nevada Power uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The model incorporates a mid-market pricing convention (the mid‑point price between bid and ask prices) as a practical expedient for valuing its assets and liabilities measured and reported at fair value. The determination of the fair value for derivative contracts not only includes counterparty risk, but also the impact of Nevada Power's nonperformance risk on its liabilities, which as of March 31,September 30, 2018 and December 31, 2017, had an immaterial impact to the fair value of its derivative contracts. As such, Nevada Power considers its derivative contracts to be valued using Level 3 inputs.



Nevada Power's investments in money market mutual funds and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value.

The following table reconciles the beginning and ending balances of Nevada Power's commodity derivative assets and liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Beginning balance$(3) $(14)$(9) $(4) $(3) $(14)
Changes in fair value recognized in regulatory assets(5) (1)2
 (1) (6) (3)
Settlements
 1

 1
 2
 13
Ending balance$(8) $(14)$(7) $(4) $(7) $(4)

Nevada Power's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of Nevada Power's long‑term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of Nevada Power's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of Nevada Power's long‑term debt (in millions):
 As of March 31, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$2,601
 $2,999
 $2,600
 $3,088
 As of September 30, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$2,351
 $2,653
 $2,600
 $3,088



(10)Commitments and Contingencies

Environmental Laws and Regulations

Nevada Power is subject to federal, state and local laws and regulations regarding air and water quality, renewable portfolio standards, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Nevada Power's current and future operations. Nevada Power believes it is in material compliance with all applicable laws and regulations.

Legal Matters

Nevada Power is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. Nevada Power does not believe that such normal and routine litigation will have a material impact on its consolidated financial results.

(11)
(11)    Revenue from Contracts with Customers

Adoption

In May 2014, the FASB issued ASU No. 2014-09, which created FASB ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") and superseded ASC Topic 605, "Revenue Recognition." The guidance replaced industry-specific guidance and established a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue"). The core principle of the guidance is that an entity should recognize revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Following the issuance of ASU No. 2014-09, the FASB issued several ASUs that clarified the implementation guidance for ASU No. 2014-09 but did not change the core principle of the guidance. Nevada Power adopted this guidance for all applicable contracts as of January 1, 2018 under a modified retrospective method and the adoption did not have a cumulative effect impact at the date of initial adoption.



Customer Revenue

Nevada Power recognizes revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which Nevada Power expects to be entitled in exchange for those goods or services. Nevada Power records sales, franchise and excise taxes collected directly from customers and remitted directly to the taxing authorities on a net basis on the Consolidated Statements of Operations.

Substantially all of Nevada Power's Customer Revenue is derived from tariff based sales arrangements approved by various regulatory bodies. These tariff based revenues are mainly comprised of energy, transmission and distribution and have performance obligations to deliver energy products and services to customers which are satisfied over time as energy is delivered or services are provided. Other revenue consists primarily of amounts not considered Customer Revenue within ASC 606 and revenue recognized in accordance with ASC 840, "Leases" and amounts not considered Customer Revenue within ASC 606..

Revenue recognized is equal to what Nevada Power has the right to invoice as it corresponds directly with the value to the customer of Nevada Power's performance to date and includes billed and unbilled amounts. As of March 31,September 30, 2018 and December 31, 2017, accounts receivables, net on the Consolidated Balance Sheets relate substantially to Customer Revenue, including unbilled revenue of $97$178 million and $111 million, respectively. Payments for amounts billed are generally due from the customer within 30 days of billing. Rates charged for energy products and services are established by regulators or contractual arrangements that establish the transaction price as well as the allocation of price amongst the separate performance obligations. When preliminary regulated rates are permitted to be billed prior to final approval by the applicable regulator, certain revenue collected may be subject to refund and a liability for estimated refunds is accrued.



The following table summarizes Nevada Power's revenue by customer class for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 (in millions):
Three-Month Period Nine-Month Period
March 31,Ended September 30, Ended September 30,
20182018 2018
Customer Revenue:
  
Retail:
  
Residential$193
$484
 $989
Commercial95
135
 340
Industrial79
164
 351
Other6
7
 18
Total fully bundled373
790
 1,698
Distribution only service7
9
 24
Total retail380
799
 1,722
Wholesale, transmission and other10
15
 38
Total Customer Revenue390
814
 1,760
Other revenue5
6
 17
Total revenue$395
$820
 $1,777

Contract Assets and Liabilities

In the event one of the parties to a contract has performed before the other, Nevada Power would recognize a contract asset or contract liability depending on the relationship between Nevada Power's performance and the customer's payment. As of March 31,September 30, 2018 and December 31, 2017, there were no contract assets or contract liabilities recorded on the Consolidated Balance Sheets.



Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations 

General

Nevada Power's revenues and operating income are subject to fluctuations during the year due to impacts that seasonal weather, rate changes, and customer usage patterns have on demand for electric energy and resources. Nevada Power is a summer peaking utility experiencing its highest retail energy sales in response to the demand for air conditioning. The variations in energy usage due to varying weather, customer growth and other energy usage patterns, including energy efficiency and conservation measures, necessitates a continual balancing of loads and resources and purchases and sales of energy under short- and long-term energy supply contracts. As a result, the prudent management and optimization of available resources has a direct effect on the operating and financial performance of Nevada Power. Additionally, the timely recovery of purchased power, fuel costs and other costs and the ability to earn a fair return on investments through rates are essential to the operating and financial performance of Nevada Power.

The following is management's discussion and analysis of certain significant factors that have affected the consolidated financial condition and results of operations of Nevada Power during the periods included herein. Explanations include management's best estimate of the impact of weather, customer growth and other factors. This discussion should be read in conjunction with Nevada Power's historical unaudited Consolidated Financial Statements and Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q. Nevada Power's actual results in the future could differ significantly from the historical results.



Results of Operations for the Third Quarter and First QuarterNine Months of 2018 and 2017

Overview

Net income for the firstthird quarter of 2018 was $-$164 million, a decrease of $10$12 million, or 100%7%, compared to 2017 primarily due to an $8 million increase in depreciation expense due to various regulatory amortizations, $3$50 million of higher operations and maintenance expense, mainly due to a legal settlementan accrual for earnings sharing established in 2018 as part of the Nevada Power 2017 regulatory rate review and $2increased political activity expenses, $12 million of lower utility margin.margin, primarily due to lower average retail rates including rate impacts related to the tax rate reduction rider as a result of the Tax Cuts and Jobs Act ("2017 Tax Reform"), and $8 million in higher depreciation and amortization, primarily due to various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review, partially offset by a decrease in income tax expense of $50 million, primarily from a lower federal tax rate due to the impact of 2017 Tax Reform, and $6 million of lower interest expense on long-term debt.

Net income for the first nine months of 2018 was $228 million, a decrease of $35 million, or 13%, compared to 2017 primarily due to $68 million of higher operations and maintenance expense, mainly due to an accrual for earnings sharing established in 2018 as part of the Nevada Power 2017 regulatory rate review and increased political activity expenses, $27 million of lower utility margin, primarily due to lower average retail rates including rate impacts related to the tax rate reduction rider as a result of 2017 Tax Reform, and a $22 million increase in depreciation and amortization, primarily due to various regulatory-directed amortizations established in the Nevada Power 2017 regulatory rate review, partially offset by a decrease in income tax expense of $79 million, primarily from a lower federal tax rate due to the impact of 2017 Tax Reform.

Non-GAAP Financial Measure
Management utilizes various key financial measures that are prepared in accordance with GAAP, as well as non-GAAP financial measures such as, utility margin, to help evaluate results of operations. Utility margin is calculated as electric operating revenue less cost of fuel energy and capacity,energy, which are captions presented on the Consolidated Statements of Operations.
Nevada Power’sPower's cost of fuel energy and capacity and natural gas purchased for resaleenergy are directly recovered from its customers through regulatory recovery mechanisms and as a result, changes in the Nevada Power’sPower's revenue are comparable to changes in such expenses. As such, management believes utility margin more appropriately and concisely explainexplains profitability rather than a discussion of revenue and cost of sales separately. Management believes the presentation of utility margin provides meaningful and valuable insight into the information management considers important to running the business and a measure of comparability to others in the industry.
Utility margin is not a measure calculated in accordance with GAAP and should be viewed as a supplement to and not a substitute for operating income which is the most comparable financial measure prepared in accordance with GAAP. The following table provides a reconciliation of utility margin to operating income (in millions):
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Utility margin:                     
Operating revenue $395
 $392
 $3
1 % $820
 $819
 $1
 % $1,777
 $1,785
 $(8) %
Cost of fuel, energy and capacity 170
 165
 5
3
Cost of fuel and energy 331
 318
 13
4
 740
 721
 19
3
Utility margin 225
 227
 (2)(1) 489
 501
 (12)(2) 1,037
 1,064
 (27)(3)
Operations and maintenance 91
 88
 3
3
 146
 96
 50
52
 344
 276
 68
25
Depreciation and amortization 84
 76
 8
11
 85
 77
 8
10
 253
 231
 22
10
Property and other taxes 10
 10
 

 11
 10
 1
10
 31
 29
 2
7
Operating income $40
 $53
 $(13)(25) $247
 $318
 $(71)(22) $409
 $528
 $(119)(23)



A comparison of Nevada Power's key operating results is as follows:
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Utility margin (in millions):                     
Operating revenue $395
 $392
 $3
1 % $820
 $819
 $1
 % $1,777
 $1,785
 $(8) %
Cost of fuel, energy and capacity 170
 165
 5
3
Cost of fuel and energy 331
 318
 13
4
 740
 721
 19
3
Utility margin $225
 $227
 $(2)(1) $489
 $501
 $(12)(2) $1,037
 $1,064
 $(27)(3)
                     
GWh sold:                     
Residential 1,482
 1,518
 (36)(2)% 4,213
 3,899
 314
8 % 8,299
 7,899
 400
5 %
Commercial 990
 974
 16
2
 1,568
 1,517
 51
3
 3,759
 3,669
 90
2
Industrial 1,234
 1,447
 (213)(15) 1,631
 1,783
 (152)(9) 4,281
 4,870
 (589)(12)
Other 50
 49
 1
2
 61
 60
 1
2
 157
 154
 3
2
Total fully bundled(1)
 3,756
 3,988
 (232)(6) 7,473
 7,259
 214
3
 16,496
 16,592
 (96)(1)
Distribution only service 492
 320
 172
54
 775
 617
 158
26
 1,938
 1,367
 571
42
Total retail 4,248
 4,308
 (60)(1) 8,248
 7,876
 372
5
 18,434
 17,959
 475
3
Wholesale 44
 109
 (65)(60) 53
 59
 (6)(10) 181
 214
 (33)(15)
Total GWh sold 4,292
 4,417
 (125)(3) 8,301
 7,935
 366
5
 18,615
 18,173
 442
2
                     
Average number of retail customers (in thousands):                     
Residential 818
 805
 13
2 % 828
 813
 15
2 % 823
 809
 14
2 %
Commercial 107
 106
 1
1
 108
 106
 2
2
 107
 106
 1
1
Industrial 2
 2
 

 2
 2
 

 2
 2
 

Total 927
 913
 14
2
 938
 921
 17
2
 932
 917
 15
2
                     
Average per MWh:                     
Revenue - fully bundled(1)
 $99.29
 $93.81
 $5.48
6 % $105.82
 $109.85
 $(4.03)(4)% $102.93
 $104.06
 $(1.13)(1)%
Total cost of energy(2)
 $44.60
 $39.61
 $4.99
13 % $41.93
 $42.46
 $(0.53)(1)% $44.14
 $41.80
 $2.34
6 %
                     
Heating degree days 816
 775
 41
5 % 
 
 
 % 839
 791
 48
6 %
Cooling degree days 19
 111
 (92)(83)% 2,580
 2,319
 261
11 % 4,072
 3,808
 264
7 %
                     
Sources of energy (GWh)(3):
                     
Natural gas 2,401
 2,460
 (59)(2)% 5,282
 4,592
 690
15 % 11,295
 10,338
 957
9 %
Coal 249
 506
 (257)(51) 403
 367
 36
10
 891
 1,182
 (291)(25)
Renewables 15
 16
 (1)(6) 20
 19
 1
5
 56
 57
 (1)(2)
Total energy generated 2,665
 2,982
 (317)(11) 5,705
 4,978
 727
15
 12,242
 11,577
 665
6
Energy purchased 1,146
 1,189
 (43)(4) 2,214
 2,500
 (286)(11) 5,209
 5,665
 (456)(8)
Total 3,811
 4,171
 (360)(9) 7,919
 7,478
 441
6
 17,451
 17,242
 209
1

*     Not meaningful
(1)Fully bundled includes sales to customers for combined energy, transmission and distribution services.
(2)The average total cost of energy per MWh includes the cost of fuel, purchased power and deferrals and does not include other costs and excludes 70- and 13739 GWh of coal and 680- and 665481 GWh of gas generated energy that is purchased at cost by related parties for the third quarter of 2018 and 2017, respectively. The average total cost of energy per MWh includes the cost of fuel, purchased power and deferrals and does not include other costs and excludes 93 and 226 GWh of coal and 1,043 and 1,631 GWh of gas generated energy that is purchased at cost by related parties for the first quarternine months of 2018 and 2017, respectively.
(3)GWh amounts are net of energy used by the related generating facilities.



Utility margin decreased $2$12 million, or 1%2%, for the firstthird quarter of 2018 compared to 2017 primarily due to:
$323 million in lower residential volumes primarily fromretail rates due to the impactstax rate reduction rider as a result of weather;2017 Tax Reform;
$215 million due to lower retail rates as a result of the 2017 regulatory rate review with rates effective February 2018 and
$3 million in lower commercial and industrial retail revenue from customers purchasing energy from alternative providers and becoming distribution only service customers and
$2 million due to lower retail rates primarily due to the 2017 regulatory rate review with rates effective February 2018.customers.
The decrease in utility margin was offset by:
$215 million in higher residential volumes primarily from the impacts of weather;
$4 million due to commercial and industrialresidential customer growth and usage andgrowth;
$23 million in higher other revenue primarily from impact fees and revenue relating to customers becoming distribution only service customers.customers;
$2 million in higher energy efficiency program rate revenue, which is offset in operating and maintenance expense and
$2 million from higher transmission revenue.

Operations and maintenance increased $3$50 million, or 3%52%, for the firstthird quarter of 2018 compared to 2017 primarily due to settlement costs associated with a personal injury claim, partially offset by decreased maintenance costs.an accrual for earnings sharing established in 2018 as part of the Nevada Power 2017 regulatory rate review and higher political activity expenses.

Depreciation and amortizationincreased$8 $8 million, or 11%10%, for the firstthird quarter of 2018 compared to 2017 primarily due to various regulatory-directed amortizations and increased depreciation expense as a result of the Nevada Power 2017 regulatory directed amortizations.rate review.

Other income (expense) is favorable $9 million, or 23%, for the third quarter of 2018 compared to 2017 primarily due to lower interest expense on long-term debt and higher interest income.

Income tax expense decreased $5$50 million, or 49%, for the firstthird quarter of 2018 compared to 2017. Nevada Power did not incur tax expense in 2018 due to $- million income before income tax expense. The effective tax rate was 33%24% in 2018 and 37% in 2017. The decrease in the effective tax rate is primarily due to 2017 Tax Reform, which reduced the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, partially offset by an increase in nondeductible expenses.

Utility margin decreased $27 million, or 3%, for the first nine months of 2018 compared to 2017 primarily due to:
$39 million in lower retail rates due to the tax rate reduction rider as a result of 2017 Tax Reform;
$23 million in lower retail rates as a result of the 2017 regulatory rate review with rates effective February 2018 and
$8 million in lower commercial and industrial retail revenue from customers purchasing energy from alternative providers and becoming distribution only service customers.
The decrease in utility margin was offset by:
$17 million in higher residential volumes primarily from the impacts of weather;
$8 million due to residential customer growth;
$7 million in higher other revenue primarily from impact fees and revenue relating to customers becoming distribution only service customers and
$3 million in higher energy efficiency program rate revenue, which is offset in operating and maintenance expense.

Operations and maintenance increased $68 million, or 25%, for the first nine months of 2018 compared to 2017 primarily due to an accrual for earnings sharing established in 2018 as part of the Nevada Power 2017 regulatory rate review and higher political activity expenses.

Depreciation and amortization increased $22 million, or 10%, for the first nine months of 2018 compared to 2017 primarily due to various regulatory-directed amortizations and increased depreciation expense as a result of the Nevada Power 2017 regulatory rate review.



Other income (expense) is favorable $5 million, or 4%, for the first nine months of 2018 compared to 2017 primarily due to lower interest expense on long-term debt.

Income tax expense decreased $79 million, or 52%, for the first nine months of 2018 compared to 2017. The effective tax rate was 24% in 2018 and 36% in 2017.The decrease in the effective tax rate is primarily due to 2017 Tax Reform, which reduced the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, partially offset by an increase in nondeductible expenses.

Liquidity and Capital Resources

As of March 31,September 30, 2018, Nevada Power's total net liquidity was as follows (in millions):

Cash and cash equivalents $97
 $80
Credit facility 400
 400
Total net liquidity $497
 $480
Credit facility:    
Maturity date 2020
 2021

Operating Activities

Net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $110$486 million and $90$469 million, respectively. The change wasIncreases were due to the timing oflower federal tax payments and receipts including a decrease in fuel costs and increased collections from customers due to higher deferred energy rates, partially offset by lower retail general rates. The increase was partially offset byimpact fees received in 2017, higher payments for operating costs.costs and higher contributions to the pension plan.

Nevada Power's income tax cash flows benefited in 2017 and 2016 from 50% bonus depreciation on qualifying assets placed in service and from investment tax credits earned on qualifying solar projects. In December 2017, the 2017 Tax Reform was enacted which, among other items, reduces the federal corporate tax rate from 35% to 21% effective January 1, 2018, eliminated bonus depreciation on qualifying regulated utility assets acquired after September 27, 2017December 31 and eliminated the deduction for production activities, but did not impact investment tax credits. Nevada Power believes for qualifying assets acquired on or before September 27, 2017,December 31, bonus depreciation will remain available for 2018 and 2019. In February 2018, Nevada Power made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from the 2017 Tax Reform for 2018 and beyond. The filing supported an annual rate reduction of $59 million. In March 2018, the PUCN issued an order approving the rate reduction proposed by Nevada Power. The new rates were effective April 1, 2018. The order has extended the procedural schedule to allow parties additional discovery relevant to the 2017 Tax Reform withand a hearing scheduledwas held in JuneJuly 2018. Nevada Power expects lower revenue collections and income tax payments as well as lower bonus depreciation benefits compared to 2017 as a result of the 2017 Tax Reform and related regulatory treatment. Nevada Power does not expect the 2017 Tax Reform and related regulatory treatment to have a material adverse impact on its cash flows, subject to actual regulatory outcomes. The timing of Nevada Power's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date.



Investing Activities

Net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $(64)$(202) million and $(135)$(275) million, respectively. The change was primarily due to the acquisition of the remaining 25% in the Silverhawk generating station in 2017, partially offset by increased capital expenditures.2017.

Financing Activities

Net cash flows from financing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $(5)$(263) million and $(154)$(407) million, respectively. The change was due to lower redemptionsgreater proceeds from issuance of long‑termlong-term debt in 2018 and dividends paid to NV Energy, Inc. of $412 million in 2017 compared to no dividends paid in 2018, partially offset by higher repayments of long-term debt in 2018.



Ability to Issue Debt

Nevada Power's ability to issue debt is primarily impacted by its financing authority from the PUCN. Following the April 2018 issuance of $575 million of general and refunding mortgage securities, Nevada Power has financing authority from the PUCN consisting of the ability to: (1) issue new long-term debt securities of up to $1.3 billion; (2) refinance up to $656 million of long-term debt securities; and (3) maintain a revolving credit facility of up to $1.3 billion. Nevada Power's revolving credit facility contains a financial maintenance covenant which Nevada Power was in compliance with as of March 31,September 30, 2018.

Future Uses of Cash

Nevada Power has available a variety of sources of liquidity and capital resources, both internal and external, including net cash flows from operating activities, public and private debt offerings, the use of its secured revolving credit facility, capital contributions and other sources. These sources are expected to provide funds required for current operations, capital expenditures, debt retirements and other capital requirements. The availability and terms under which Nevada Power has access to external financing depends on a variety of factors, including Nevada Power's credit ratings, investors' judgment of risk and conditions in the overall capital markets, including the condition of the utility industry.

Capital Expenditures

Nevada Power has significant future capital requirements. Capital expenditure needs are reviewed regularly by management and may change significantly as a result of these reviews, which may consider, among other factors, impacts to customers' rates; changes in environmental and other rules and regulations; outcomes of regulatory proceedings; changes in income tax laws; general business conditions; load projections; system reliability standards; the cost and efficiency of construction labor, equipment and materials; commodity prices; and the cost and availability of capital. Prudently incurred expenditures for compliance-related items such as pollution control technologies, replacement generation and associated operating costs are generally incorporated into Nevada Power's regulated retail rates. Expenditures for certain assets may ultimately include acquisition of existing assets.

Nevada Power's historical and forecast capital expenditures, each of which exclude amounts for non-cash equity AFUDC and other non-cash items are as follows (in millions):
Three-Month Periods AnnualNine-Month Periods Annual
Ended March 31, ForecastEnded September 30, Forecast
2017 2018 20182017 2018 2018
          
Solar generation$
 $
 $8
Distribution23
 27
 166
41
 93
 155
Transmission system investment3
 2
 23
6
 6
 19
Other32
 35
 128
155
 104
 157
Total$58
 $64
 $325
$202
 $203
 $331

Nevada Power's approved forecast capital expenditures include investments related to operating projects that consist of routine expenditures for transmission, distribution, generation and other infrastructure needed to serve existing and expected demand.

Contractual Obligations

As of March 31,September 30, 2018, there have been no material changes outside the normal course of business in contractual obligations from the information provided in Item 7 of Nevada Power's Annual Report on Form 10-K for the year ended December 31, 2017.




Regulatory Matters

Nevada Power is subject to comprehensive regulation. Refer to "Regulatory Matters" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for discussion regarding Nevada Power's current regulatory matters.

Integrated Resource Plan ("IRP")

In June 2018, Nevada Power and Sierra Pacific filed with the PUCN a joint application for approval of a 2019-2038 Triennial IRP, 2019-2021 Action Plan, and 2019-2021 Energy Supply Plan ("ESP"). As part of the filings, the Nevada Utilities seek the PUCN authorization to add 1,001 MW of renewable energy and 100 MW of energy storage capacity. The Nevada Utilities are requesting to achieve with power purchase agreements from six new solar generating resources, three battery storage systems, transmission network upgrades and the conditional early retirement of North Valmy Unit 1 generating station. The agreements are conditional upon voters not approving the ballot measure on energy choice in November 2018.

Environmental Laws and Regulations

Nevada Power is subject to federal, state and local laws and regulations regarding air and water quality, RPS, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Nevada Power's current and future operations. In addition to imposing continuing compliance obligations and capital expenditure requirements, these laws and regulations provide regulators with the authority to levy substantial penalties for noncompliance including fines, injunctive relief and other sanctions. These laws and regulations are administered by the EPA and various state and local agencies. All such laws and regulations are subject to a range of interpretation, which may ultimately be resolved by the courts. Environmental laws and regulations continue to evolve, and Nevada Power is unable to predict the impact of the changing laws and regulations on its operations and consolidated financial results. Nevada Power believes it is in material compliance with all applicable laws and regulations. Refer to "Liquidity and Capital Resources" for discussion of Nevada Power's forecasted environmental-related capital expenditures.

Refer to "Environmental Laws and Regulations" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for additional information regarding environmental laws and regulations.

New Accounting Pronouncements

For a discussion of new accounting pronouncements affecting Nevada Power, refer to Note 2 of Notes to Consolidated Financial Statements in Nevada Power's Part I, Item 1 of this Form 10-Q.

Critical Accounting Estimates

Certain accounting measurements require management to make estimates and judgments concerning transactions that will be settled several years in the future. Amounts recognized on the Consolidated Financial Statements based on such estimates involve numerous assumptions subject to varying and potentially significant degrees of judgment and uncertainty and will likely change in the future as additional information becomes available. Estimates are used for, but not limited to, the accounting for the effects of certain types of regulation, derivatives, impairment of long-lived assets, income taxes and revenue recognition - unbilled revenue. For additional discussion of Nevada Power's critical accounting estimates, see Item 7 of Nevada Power's Annual Report on Form 10‑K for the year ended December 31, 2017. There have been no significant changes in Nevada Power's assumptions regarding critical accounting estimates since December 31, 2017.


Sierra Pacific Power Company and its subsidiaries
Consolidated Financial Section



PART I
Item 1.Financial Statements


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors and Shareholder of Sierra Pacific Power Company

Results of Review of Interim Financial Information

We have reviewed the accompanying consolidated balance sheet of Sierra Pacific Power Company and subsidiaries ("Sierra Pacific") as of March 31,September 30, 2018, the related consolidated statements of operations for the three-month and nine-month periods ended March 31,September 30, 2018 and 2017, and of changes in shareholder's equity and cash flows for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of Sierra Pacific as of December 31, 2017, and the related consolidated statements of operations, changes in shareholder's equity, and cash flows for the year then ended (not presented herein); and in our report dated February 23, 2018, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2017 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

This interim financial information is the responsibility of Nevada Power'sSierra Pacific's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the CompanySierra Pacific in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.


/s/ Deloitte & Touche LLP


Las Vegas, Nevada
May 7,November 2, 2018



SIERRA PACIFIC POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (Unaudited)
(Amounts in millions, except share data)

As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
ASSETS
Current assets:      
Cash and cash equivalents$32
 $4
$71
 $4
Accounts receivable, net107
 112
106
 112
Inventories48
 49
53
 49
Regulatory assets18
 32
8
 32
Other current assets24
 17
32
 17
Total current assets229
 214
270
 214
      
Property, plant and equipment, net2,901
 2,892
2,938
 2,892
Regulatory assets300
 300
293
 300
Other assets9
 7
15
 7
      
Total assets$3,439
 $3,413
$3,516
 $3,413
      
LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities:      
Accounts payable$74
 $92
$84
 $92
Accrued interest11
 14
11
 14
Accrued property, income and other taxes13
 10
13
 10
Regulatory liabilities27
 19
32
 19
Current portion of long-term debt and financial and capital lease obligations2
 2
2
 2
Customer deposits17
 15
19
 15
Other current liabilities18
 12
25
 12
Total current liabilities162
 164
186
 164
      
Long-term debt and financial and capital lease obligations1,151
 1,152
1,153
 1,152
Regulatory liabilities474
 481
489
 481
Deferred income taxes338
 330
333
 330
Other long-term liabilities108
 114
107
 114
Total liabilities2,233
 2,241
2,268
 2,241
      
Commitments and contingencies (Note 10)
 

 
      
Shareholder's equity:      
Common stock - $3.75 stated value, 20,000,000 shares authorized and 1,000 issued and outstanding
 

 
Other paid-in capital1,111
 1,111
Additional paid-in capital1,111
 1,111
Retained earnings96
 62
138
 62
Accumulated other comprehensive loss, net(1) (1)(1) (1)
Total shareholder's equity1,206
 1,172
1,248
 1,172
      
Total liabilities and shareholder's equity$3,439
 $3,413
$3,516
 $3,413
      
The accompanying notes are an integral part of the consolidated financial statements.



SIERRA PACIFIC POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
(Amounts in millions)

Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Electric$181
 $159
Natural gas41
 34
Regulated electric$225
 $215
 $575
 $534
Regulated natural gas14
 15
 74
 66
Total operating revenue222
 193
239
 230
 649
 600
          
Operating costs and expenses:   
Cost of fuel, energy and capacity77
 56
Natural gas purchased for resale23
 16
Operating expenses:       
Cost of fuel and energy90
 76
 245
 193
Cost of natural gas purchased for resale4
 4
 35
 26
Operations and maintenance39
 41
53
 41
 140
 122
Depreciation and amortization30
 28
30
 29
 89
 85
Property and other taxes6
 6
6
 6
 18
 18
Total operating costs and expenses175
 147
Total operating expenses183
 156
 527
 444
          
Operating income47
 46
56
 74
 122
 156
          
Other income (expense):          
Interest expense(10) (11)(12) (11) (33) (33)
Allowance for borrowed funds
 1
 1
 1
Allowance for equity funds1
 1
1
 1
 3
 2
Other, net2
 1
3
 3
 8
 5
Total other income (expense)(7) (9)(8) (6) (21) (25)
          
Income before income tax expense40
 37
48
 68
 101
 131
Income tax expense6
 13
13
 24
 25
 46
Net income$34
 $24
$35
 $44
 $76
 $85
          
The accompanying notes are an integral part of these consolidated financial statements.



SIERRA PACIFIC POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDER'S EQUITY (Unaudited)
(Amounts in millions, except shares)

         Accumulated           Accumulated  
     Other Retained Other Total     Additional Retained Other Total
 Common Stock Paid-in Earnings Comprehensive Shareholder's Common Stock Paid-in Earnings Comprehensive Shareholder's
 Shares Amount Capital (Deficit) Loss, Net Equity Shares Amount Capital (Deficit) Loss, Net Equity
                        
Balance, December 31, 2016 1,000
 $
 $1,111
 $(2) $(1) $1,108
 1,000
 $
 $1,111
 $(2) $(1) $1,108
Net income 
 
 
 24
 
 24
 
 
 
 85
 
 85
Dividends declared 
 
 
 (2) 
 (2) 
 
 
 (5) 
 (5)
Balance, March 31, 2017 1,000
 $
 $1,111
 $20
 $(1) $1,130
Balance, September 30, 2017 1,000
 $
 $1,111
 $78
 $(1) $1,188
                        
Balance, December 31, 2017 1,000
 $
 $1,111
 $62
 $(1) $1,172
 1,000
 $
 $1,111
 $62
 $(1) $1,172
Net income 
 
 
 34
 
 34
 
 
 
 76
 
 76
Balance, March 31, 2018 1,000
 $
 $1,111
 $96
 $(1) $1,206
Balance, September 30, 2018 1,000
 $
 $1,111
 $138
 $(1) $1,248
                        
The accompanying notes are an integral part of these consolidated financial statements.



SIERRA PACIFIC POWER COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
(Amounts in millions)

Three-Month PeriodsNine-Month Periods
Ended March 31,Ended September 30,
2018 20172018 2017
Cash flows from operating activities:      
Net income$34
 $24
$76
 $85
Adjustments to reconcile net income to net cash flows from operating activities:      
Depreciation and amortization30
 28
89
 85
Allowance for equity funds(1) (1)(3) (2)
Changes in regulatory assets and liabilities32
 9
Deferred income taxes and amortization of investment tax credits6
 13
9
 46
Changes in regulatory assets and liabilities12
 3
Deferred energy13
 (11)26
 (23)
Amortization of deferred energy(4) (21)(6) (43)
Other, net
 2
Changes in other operating assets and liabilities:      
Accounts receivable and other assets3
 20
(3) 11
Inventories
 (3)(5) (2)
Accrued property, income and other taxes(2) (3)
Accrued property, income and other taxes, net(2) (2)
Accounts payable and other liabilities(16) (63)(5) (54)
Net cash flows from operating activities75
 (12)208
 110
      
Cash flows from investing activities:      
Capital expenditures(45) (41)(139) (131)
Net cash flows from investing activities(45) (41)(139) (131)
      
Cash flows from financing activities:      
Net proceeds from short-term debt
 6
Repayments of long-term debt and financial and capital lease obligations
 (1)(2) (1)
Dividends paid
 (2)
 (5)
Net cash flows from financing activities
 3
(2) (6)
      
Net change in cash and cash equivalents and restricted cash and cash equivalents30
 (50)67
 (27)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period8
 60
8
 60
Cash and cash equivalents and restricted cash and cash equivalents at end of period$38
 $10
$75
 $33
      
The accompanying notes are an integral part of these consolidated financial statements.



SIERRA PACIFIC POWER COMPANY AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

(1)
(1)    General

Sierra Pacific Power Company, together with its subsidiaries ("Sierra Pacific"), is a wholly owned subsidiary of NV Energy, Inc. ("NV Energy"), a holding company that also owns Nevada Power Company ("Nevada Power") and certain other subsidiaries. Sierra Pacific is a United States regulated electric utility company serving retail customers, including residential, commercial and industrial customers and regulated retail natural gas customers primarily in northern Nevada. NV Energy is an indirect wholly owned subsidiary of Berkshire Hathaway Energy Company ("BHE"). BHE is a holding company based in Des Moines, Iowa that owns subsidiaries principally engaged in energy businesses. BHEand is a consolidated subsidiary of Berkshire Hathaway Inc. ("Berkshire Hathaway").

The unaudited Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and the United States Securities and Exchange Commission's rules and regulations for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures required by GAAP for annual financial statements. Management believes the unaudited Consolidated Financial Statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary for the fair presentation of the unaudited Consolidated Financial Statements as of March 31,September 30, 2018 and for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The Consolidated Statements of Comprehensive Income have been omitted as net income equals comprehensive income for the three-monththree- and nine-month periods ended March 31,September 30, 2018 and 2017. The results of operations for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 are not necessarily indicative of the results to be expected for the full year.

The preparation of the unaudited Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the unaudited Consolidated Financial Statements and the reported amounts of revenue and expenses during the period. Actual results may differ from the estimates used in preparing the unaudited Consolidated Financial Statements. Note 2 of Notes to Consolidated Financial Statements included in Sierra Pacific's Annual Report on Form 10-K for the year ended December 31, 2017 describes the most significant accounting policies used in the preparation of the unaudited Consolidated Financial Statements. There have been no significant changes in Sierra Pacific's assumptions regarding significant accounting estimates and policies during the three-monthnine-month period ended March 31,September 30, 2018.

(2)
(2)    New Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB")FASB issued Accounting Standards Update ("ASU")ASU No. 2016-02, which creates FASB Accounting Standards Codification ("ASC")ASC Topic 842, "Leases" and supersedes Topic 840 "Leases." This guidance increases transparency and comparability among entities by recording lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous guidance. In JanuaryDuring 2018, the FASB issued several ASUs that clarified the implementation guidance and provided optional transition practical expedients for ASU No. 2016-02 including ASU No. 2018-01 that provides for an optional transition practical expedient allowingallows companies to not have to evaluateforgo evaluating existing land easements if they were not previously accounted for under ASC Topic 840, "Leases.""Leases" and ASU No. 2018-11 that allows companies to apply the new guidance at the adoption date with the cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted, and is required to be adopted using a modified retrospective approach. Sierra Pacific plans to adopt this guidance effective January 1, 2019 and is currently in the process of evaluating the impact on its Consolidated Financial Statements and disclosures included within Notes to Consolidated Financial Statements.

(3)
Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

In November 2016, the FASB issued ASU No. 2016-18, which amends FASB ASC Subtopic 230-10, "Statement of Cash Flows - Overall." The amendments in this guidance require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash and restricted cash equivalents. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Sierra Pacific adopted this guidance January 1, 2018.



Cash equivalents consist of funds invested in money market mutual funds, United States Treasury Bills and other investments with a maturity of three months or less when purchased. Cash and cash equivalents exclude amounts where availability is restricted by legal requirements, loan agreements or other contractual provisions. Restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, consist of funds restricted by the Public Utilities Commission of Nevada ("PUCN") for a certain renewable energy contract. A reconciliation of cash and cash equivalents and restricted cash and cash equivalents as of March 31,September 30, 2018 and December 31, 2017, as presented in the Consolidated Statements of Cash Flows is outlined below and disaggregated by the line items in which they appear on the Consolidated Balance Sheets (in millions):
As ofAs of
March 31, December 31,September 30, December 31,
2018 20172018 2017
Cash and cash equivalents$32
 $4
$71
 $4
Restricted cash and cash equivalents included in other current assets6
 4
4
 4
Total cash and cash equivalents and restricted cash and cash equivalents$38
 $8
$75
 $8

(4)
(4)    Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 As of As of
Depreciable Life March 31, December 31,Depreciable Life September 30, December 31,
 2018 2017 2018 2017
Utility plant:        
Electric generation25 - 60 years $1,143
 $1,144
25 - 60 years $1,144
 $1,144
Electric distribution20 - 100 years 1,470
 1,459
20 - 100 years 1,518
 1,459
Electric transmission50 - 100 years 791
 786
50 - 100 years 817
 786
Electric general and intangible plant5 - 70 years 181
 181
5 - 70 years 191
 181
Natural gas distribution35 - 70 years 390
 390
35 - 70 years 398
 390
Natural gas general and intangible plant5 - 70 years 14
 14
5 - 70 years 14
 14
Common general5 - 70 years 296
 294
5 - 70 years 305
 294
Utility plant 4,285
 4,268
 4,387
 4,268
Accumulated depreciation and amortization (1,531) (1,513) (1,573) (1,513)
Utility plant, net 2,754
 2,755
 2,814
 2,755
Other non-regulated, net of accumulated depreciation and amortization70 years 5
 5
70 years 5
 5
Plant, net 2,759
 2,760
 2,819
 2,760
Construction work-in-progress 142
 132
 119
 132
Property, plant and equipment, net $2,901
 $2,892
 $2,938
 $2,892

(5)
(5)    Regulatory Matters

Deferred Energy

Nevada statutes permit regulated utilities to adopt deferred energy accounting procedures. The intent of these procedures is to ease the effect on customers of fluctuations in the cost of purchased natural gas, fuel and electricity and are subject to annual prudency review by the PUCN. Under deferred energy accounting, to the extent actual fuel and purchased power costs exceed fuel and purchased power costs recoverable through current rates that excess is not recorded as a current expense on the Consolidated Statements of Operations but rather is deferred and recorded as a regulatory asset on the Consolidated Balance Sheets. Conversely, a regulatory liability is recorded to the extent fuel and purchased power costs recoverable through current rates exceed actual fuel and purchased power costs. These excess amounts are reflected in quarterly adjustments to rates and recorded as cost of fuel energy and capacityenergy in future time periods.



Regulatory Rate Review

The Tax Cuts and Jobs Act ("2017 Tax Reform") enacted significant changes to the Internal Revenue Code, including, among other things, a reduction in the U.S. federal corporate income tax rate from 35% to 21%. In February 2018, Sierra Pacific made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from the 2017 Tax Reform for 2018 and beyond. The filing supports an annual rate reduction of $25 million. In March 2018, the PUCN issued an order approving the rate reduction proposed by Sierra Pacific, The new rates were effective April 1, 2018. The order has extended the procedural schedule to allow parties additional discovery relevant to 2017 Tax Reform and a hearing was held in July 2018. In September 2018, the PUCN issued an order directing Sierra Pacific to record the amortization of any excess protected accumulated deferred income tax arising from the 2017 Tax Reform withas a hearing scheduled in Juneregulatory liability effective January 1, 2018. Sierra Pacific cannot predict the timing or ultimate outcome of further regulatory proceedings.

Chapter 704B Applications

Chapter 704B of the Nevada Revised Statutes allows retail electric customers with an average annual load of one megawatt ("MW") or more to file with the PUCN an application to purchase energy from alternative providers of a new electric resource and become distribution only service customers. On a case-by-case basis, the PUCN will assess the application and may deny or grant the application subject to conditions, including paying an impact fee, paying on-going charges and receiving approval for specific alternative energy providers and terms. The impact fee and on-going charges are assessed to alleviate the burden on other Nevada customers for the applicant's share of previously committed investments and long-term renewable contracts and are set at a level designed such that the remaining customers are not subjected to increased costs.

In November 2016, Caesars Enterprise Service ("Caesars"), a customer of Sierra Pacific, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Sierra Pacific. In March 2017, the PUCN approved the application allowing Caesars to purchase energy from alternative providers subject to conditions, including paying an impact fee. In March 2017, Caesars provided notice that it intends to pay the impact fee and proceed with purchasing energy from alternative providers. In July 2017, Caesars made the required compliance filings and, in September 2017, the PUCN issued an order allowing Caesars to acquire electric energy and ancillary services from another energy supplier and become a distribution only service customer of Sierra Pacific. In January 2018, Caesars became a distribution only service customer and started procuring energy from another energy supplier for its eligible meters in the Sierra Pacific service territory. Following the PUCN’sPUCN's order from March 2017, Caesars’Caesars' will pay an impact fee of $4 million in 36 monthly payments.

In May 2017, Peppermill Resort Spa Casino ("Peppermill"), a customer of Sierra Pacific, filed an application with the PUCN to purchase energy from alternative providers of a new electric resource and become a distribution only service customer of Sierra Pacific. In August 2017, the PUCN approved a stipulation allowing Peppermill to purchase energy from alternative providers subject to conditions, including paying an impact fee. In September 2017, Peppermill provided notice that it intends to pay the impact fee and proceed with purchasing energy from alternative providers. In April 2018, Peppermill paid a one-time impact fee of $3 million and became a distribution only service customer and started procuring energy from another energy supplier.

(6)    Recent Financing Transactions

Credit Facilities

In April 2018, Sierra Pacific amended and restated its existing $250 million secured credit facility, expiring June 2020, extending the expiration date to June 2021 and reducing from two to one, the available one-year extension options, subject to lender consent.

(7)


(7)
Income Taxes

Tax Cuts and Jobs Act

2017 Tax Reform impacts many areas of income tax law. The most material items include the reduction of the federal corporate tax rate from 35% to 21% effective January 1, 2018, the elimination of the deduction for production activities and limitations on bonus depreciation for utility property.



In December 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin 118 to assist in the implementation process of the 2017 Tax Reform by allowing for calculations to be classified as provisional and subject to remeasurement. There are three different classifications for the accounting: (1) completed, (2) not complete but reasonably estimable or (3) not complete and amounts are not reasonably estimable. Sierra Pacific has recorded the impacts of the 2017 Tax Reform and believes all the impacts to be complete with the exception of interpretations of the bonus depreciation rules. Sierra Pacific has determined the amounts recorded and the interpretations relating to this items to be provisional and subject to remeasurement during the measurement period upon obtaining the necessary additional information to complete the accounting. Sierra Pacific believes its interpretations for bonus depreciation to be reasonable, however, as the guidance is clarified estimates may change. Sierra Pacific recorded a current tax benefit and deferred tax expense of $4 million during the three-month period ended September 30, 2018 following clarified bonus depreciation guidance. As a result of 2017 Tax Reform and Sierra Pacific's regulatory nature, Sierra Pacific reduced the associated deferred income tax liabilities $2 million and increased regulatory liabilities by the same amount. The accounting is estimated towill be completed by December 2018.

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows:
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Federal statutory income tax rate21 % 35%21% 35% 21% 35%
Nondeductible expenses5



4


Effects of ratemaking(5) 
1
 
 
 
Other(1) 
Effective income tax rate15 % 35%27% 35% 25% 35%

(8)
(8)    Employee Benefit Plans

Sierra Pacific is a participant in benefit plans sponsored by NV Energy. The NV Energy Retirement Plan includes a qualified pension plan ("Qualified Pension Plan") and a supplemental executive retirement plan and a restoration plan (collectively, "Non‑Qualified Pension Plans") that provide pension benefits for eligible employees. The NV Energy Comprehensive Welfare Benefit and Cafeteria Plan provides certain postretirement health care and life insurance benefits for eligible retirees ("Other Postretirement Plans") on behalf of Sierra Pacific. Sierra Pacific contributed $6 million to the Qualified Pension Plan and $6 million to the Other Postretirement Plan for the nine-month period ended September 30, 2018. Amounts attributable to Sierra Pacific were allocated from NV Energy based upon the current, or in the case of retirees, previous, employment location. Offsetting regulatory assets and liabilities have been recorded related to the amounts not yet recognized as a component of net periodic benefit costs that will be included in regulated rates. Net periodic benefit costs not included in regulated rates are included in accumulated other comprehensive loss, net.



Amounts payable toreceivable from (payable to) NV Energy are included on the Consolidated Balance Sheets and consist of the following (in millions):
 As of
 March 31, December 31,
 2018 2017
Qualified Pension Plan -   
Other long-term liabilities$(2) $(2)
    
Non-Qualified Pension Plans:   
Other current liabilities(1) (1)
Other long-term liabilities(8) (8)
    
Other Postretirement Plans -   
Other long-term liabilities(20) (20)


 As of
 September 30, December 31,
 2018 2017
Qualified Pension Plan:   
Other assets$6
 $
Other long-term liabilities
 (2)
    
Non-Qualified Pension Plans:   
Other current liabilities(1) (1)
Other long-term liabilities(8) (8)
    
Other Postretirement Plans:   
Other long-term liabilities(13) (20)

(9)
(9)    Fair Value Measurements

The carrying value of Sierra Pacific's cash, certain cash equivalents, receivables, payables, accrued liabilities and short-term borrowings approximates fair value because of the short-term maturity of these instruments. Sierra Pacific has various financial assets and liabilities that are measured at fair value on the Consolidated Balance Sheets using inputs from the three levels of the fair value hierarchy. A financial asset or liability classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows:

Level 1 Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that Sierra Pacific has the ability to access at the measurement date.
Level 2 Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).
Level 3 Unobservable inputs reflect Sierra Pacific's judgments about the assumptions market participants would use in pricing the asset or liability since limited market data exists. Sierra Pacific develops these inputs based on the best information available, including its own data.

The following table presents Sierra Pacific's assets and liabilities recognized on the Consolidated Balance Sheets and measured at fair value on a recurring basis (in millions):
Input Levels for Fair Value Measurements  Input Levels for Fair Value Measurements  
Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total
As of March 31, 2018       
As of September 30, 2018       
Assets - money market mutual funds(1)
$30
 $
 $
 $30
$18
 $
 $
 $18
              
Liabilities - commodity derivatives$
 $
 $(2) $(2)$
 $
 $(1) $(1)
              
As of December 31, 2017              
Assets - investment funds$
 $
 $
 $
$
 $
 $
 $

(1)Amounts are included in cash and cash equivalents on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.



Derivative contracts are recorded on the Consolidated Balance Sheets as either assets or liabilities and are stated at estimated fair value unless they are designated as normal purchases or normal sales and qualify for the exception afforded by GAAP. When available, the fair value of derivative contracts is estimated using unadjusted quoted prices for identical contracts in the market in which Sierra Pacific transacts. When quoted prices for identical contracts are not available, Sierra Pacific uses forward price curves. Forward price curves represent Sierra Pacific's estimates of the prices at which a buyer or seller could contract today for delivery or settlement at future dates. Sierra Pacific bases its forward price curves upon internally developed models, with internal and external fundamental data inputs. Market price quotations for certain electricity and natural gas trading hubs are not as readily obtainable due to markets that are not active. Given that limited market data exists for these contracts, Sierra Pacific uses forward price curves derived from internal models based on perceived pricing relationships to major trading hubs that are based on unobservable inputs. The model incorporates a mid-market pricing convention (the mid‑point price between bid and ask prices) as a practical expedient for valuing its assets and liabilities measured and reported at fair value. The determination of the fair value for derivative contracts not only includes counterparty risk, but also the impact of Sierra Pacific's nonperformance risk on its liabilities, which as of March 31,September 30, 2018 and December 31, 2017, had an immaterial impact to the fair value of its derivative contracts. As such, Sierra Pacific considers its derivative contracts to be valued using Level 3 inputs.

Sierra Pacific's investments in money market mutual funds and equity securities are stated at fair value. When available, a readily observable quoted market price or net asset value of an identical security in an active market is used to record the fair value.



The following table reconciles the beginning and ending balances of Sierra Pacific's commodity derivative liabilities measured at fair value on a recurring basis using significant Level 3 inputs (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
          
Beginning balance$
 $
$(2) $
 $
 $
Changes in fair value recognized in regulatory assets(2) 
2
 
 (1) 
Settlements(1) 
 
 
Ending balance$(2) $
$(1) $
 $(1) $

Sierra Pacific's long-term debt is carried at cost on the Consolidated Balance Sheets. The fair value of Sierra Pacific's long-term debt is a Level 2 fair value measurement and has been estimated based upon quoted market prices, where available, or at the present value of future cash flows discounted at rates consistent with comparable maturities with similar credit risks. The carrying value of Sierra Pacific's variable-rate long-term debt approximates fair value because of the frequent repricing of these instruments at market rates. The following table presents the carrying value and estimated fair value of Sierra Pacific's long-term debt (in millions):
 As of March 31, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$1,120
 $1,186
 $1,120
 $1,221
 As of September 30, 2018 As of December 31, 2017
 Carrying Fair Carrying Fair
 Value Value Value Value
        
Long-term debt$1,120
 $1,153
 $1,120
 $1,221

(10)
Commitments and Contingencies

Environmental Laws and Regulations

Sierra Pacific is subject to federal, state and local laws and regulations regarding air and water quality, renewable portfolio standards, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Sierra Pacific's current and future operations. Sierra Pacific believes it is in material compliance with all applicable laws and regulations.



Legal Matters

Sierra Pacific is party to a variety of legal actions arising out of the normal course of business. Plaintiffs occasionally seek punitive or exemplary damages. Sierra Pacific does not believe that such normal and routine litigation will have a material impact on its consolidated financial results.

(11)
Revenue from Contracts with Customers

Adoption

In May 2014, the FASB issued ASU No. 2014-09, which created FASB ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") and superseded ASC Topic 605, "Revenue Recognition." The guidance replaced industry-specific guidance and established a single five-step model to identify and recognize revenue from contracts with customers ("Customer Revenue"). The core principle of the guidance is that an entity should recognize revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Following the issuance of ASU No. 2014-09, the FASB issued several ASUs that clarified the implementation guidance for ASU No. 2014-09 but did not change the core principle of the guidance. Sierra Pacific adopted this guidance for all applicable contracts as of January 1, 2018 under a modified retrospective method and the adoption did not have a cumulative effect impact at the date of initial adoption.



Customer Revenue

Sierra Pacific recognizes revenue upon transfer of control of promised goods or services to customers in an amount that reflects the consideration to which Sierra Pacific expects to be entitled in exchange for those goods or services. Sierra Pacific records sales, franchise and excise taxes collected directly from customers and remitted directly to the taxing authorities on a net basis on the Consolidated Statements of Operations.

Substantially all of Sierra Pacific's Customer Revenue is derived from tariff based sales arrangements approved by various regulatory bodies. These tariff based revenues are mainly comprised of energy, transmission, distribution and natural gas and have performance obligations to deliver energy products and services to customers which are satisfied over time as energy is delivered or services are provided. Other revenue consists primarily of revenue recognized in accordance with ASC 840, "Leases" and amounts not considered Customer Revenue within ASC 606.

Revenue recognized is equal to what Sierra Pacific has the right to invoice as it corresponds directly with the value to the customer of Sierra Pacific's performance to date and includes billed and unbilled amounts. As of March 31,September 30, 2018 and December 31, 2017, accounts receivables, net on the Consolidated Balance Sheets relate substantially to Customer Revenue, including unbilled revenue of $57$51 million and $62 million, respectively. Payments for amounts billed are generally due from the customer within 30 days of billing. Rates charged for energy products and services are established by regulators or contractual arrangements that establish the transaction price as well as the allocation of price amongst the separate performance obligations. When preliminary regulated rates are permitted to be billed prior to final approval by the applicable regulator, certain revenue collected may be subject to refund and a liability for estimated refunds is accrued.



The following table summarizes Sierra Pacific's revenue by customer class, including a reconciliation to Sierra Pacific's reportable segment information included in Note 12, for the three-month periodthree- and nine-month periods ended March 31,September 30, 2018 (in millions):
Three-Month Period Nine-Month Period
Ended September 30, Ended September 30,
2018 2018
Electric Gas TotalElectric
Gas
Total Electric Gas Total
Customer Revenue:
 
  




 
 
  
Retail:
 
  




 
 
  
Residential$68
 $26
 $94
$76

$9

$85
 $203
 $48
 $251
Commercial57
 11
 68
75

3

78
 190
 18
 208
Industrial39
 3
 42
59

1

60
 136
 6
 142
Other2
 
 2
2



2
 5
 
 5
Total fully bundled166
 40
 206
212

13

225
 534
 72
 606
Distribution only service1
 
 1
1



1
 3
 
 3
Total retail167
 40
 207
213

13

226
 537
 72
 609
Wholesale, transmission and other13
 
 13
12

1

13
 35
 1
 36
Total Customer Revenue180
 40
 220
225

14

239
 572
 73
 645
Other revenue1
 1
 2





 3
 1
 4
Total revenue$181
 $41
 $222
$225

$14

$239
 $575
 $74
 $649

Contract Assets and Liabilities

In the event one of the parties to a contract has performed before the other, Sierra Pacific would recognize a contract asset or contract liability depending on the relationship between Sierra Pacific's performance and the customer's payment. As of March 31,September 30, 2018 and December 31, 2017, there were no contract assets or contract liabilities recorded on the Consolidated Balance Sheets.



(12)
(12)Segment Information

Sierra Pacific has identified two reportable operating segments: regulated electric and regulated natural gas. The regulated electric segment derives most of its revenue from regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. The regulated natural gas segment derives most of its revenue from regulated retail sales of natural gas to residential, commercial, and industrial customers and also obtains revenue by transporting natural gas owned by others through its distribution system. Pricing for regulated electric and regulated natural gas sales are established separately by the PUCN; therefore, management also reviews each segment separately to make decisions regarding allocation of resources and in evaluating performance.

The following tables provide information on a reportable segment basis (in millions):
Three-Month PeriodsThree-Month Periods Nine-Month Periods
Ended March 31,Ended September 30, Ended September 30,
2018 20172018 2017 2018 2017
Operating revenue:          
Regulated electric$181
 $159
$225
 $215
 $575
 $534
Regulated gas41
 34
Regulated natural gas14
 15
 74
 66
Total operating revenue$222
 $193
$239
 $230
 $649
 $600
          
Operating income:          
Regulated electric$37
 $36
$56
 $71
 $111
 $141
Regulated gas10
 10
Regulated natural gas
 3
 11
 15
Total operating income47
 46
56
 74
 122
 156
Interest expense(10) (11)(12) (11) (33) (33)
Allowance for borrowed funds
 1
 1
 1
Allowance for equity funds1
 1
1
 1
 3
 2
Other, net2
 1
3
 3
 8
 5
Income before income tax expense$40
 $37
$48
 $68
 $101
 $131

  As ofAs of
 March 31, December 31,September 30, December 31,
 2018 20172018 2017
Assets:       
Regulated electric $3,092
 $3,103
$3,131
 $3,103
Regulated gas 307
 300
Regulated natural gas300
 300
Regulated common assets(1)
 40
 10
85
 10
Total assets $3,439
 $3,413
$3,516
 $3,413

(1)Consists principally of cash and cash equivalents not included in either the regulated electric or regulated natural gas segments.


Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations 

General

Sierra Pacific's revenues and operating income are subject to fluctuations during the year due to impacts that seasonal weather, rate changes, and customer usage patterns have on demand for electric energy and resources. Sierra Pacific is a summer peaking utility experiencing its highest retail energy sales in response to the demand for air conditioning. The variations in energy usage due to varying weather, customer growth and other energy usage patterns, including energy efficiency and conservation measures, necessitates a continual balancing of loads and resources and purchases and sales of energy under short- and long-term energy supply contracts. As a result, the prudent management and optimization of available resources has a direct effect on the operating and financial performance of Sierra Pacific. Additionally, the timely recovery of purchased power, fuel costs and other costs and the ability to earn a fair return on investments through rates are essential to the operating and financial performance of Sierra Pacific.

The following is management's discussion and analysis of certain significant factors that have affected the consolidated financial condition and results of operations of Sierra Pacific during the periods included herein. Explanations include management's best estimate of the impact of weather, customer growth and other factors. This discussion should be read in conjunction with Sierra Pacific's historical unaudited Consolidated Financial Statements and Notes to Consolidated Financial Statements in Part I, Item 1 of this Form 10-Q. Sierra Pacific's actual results in the future could differ significantly from the historical results.



Results of Operations for the Third Quarter and First QuarterNine Months of 2018 and 2017

Overview

Net income for the firstthird quarter of 2018 was $34$35 million, an increasea decrease of $10$9 million, or 42%20%, compared to 2017 primarily due to $12 million of higher operations and maintenance expense, primarily due to increased political activity expenses, and $5 million of lower utility margin, primarily due to lower average retail rates including rate impacts related to the tax rate reduction rider as a result of the Tax Cuts and Jobs Act ("2017 Tax Reform"), partially offset by a decrease in income tax expense of $11 million, primarily from a lower federal tax rate due to the impact of 2017 Tax Reform.

Net income for the first nine months of 2018 was $76 million, a decrease of $9 million, or 11%, compared to 2017 primarily due to $18 million of higher operations and maintenance expense, primarily due to increased political activity expenses, and $11 million of lower electric utility margin, primarily due to lower average retail rates including rate impacts related to the tax rate reduction rider as a result of 2017 Tax Reform, which reducedpartially offset by a decrease in income tax expense of $21 million, primarily from a lower federal tax rate due to the federal statutory tax rate.impact of 2017 Tax Reform.

Non-GAAP Financial Measure
Management utilizes various key financial measures that are prepared in accordance with GAAP, as well as non-GAAP financial measures such as, electric utility margin and natural gas utility margin, to help evaluate results of operations. Electric utility margin is calculated as electric operating revenue less cost of fuel energy and capacityenergy while natural gas utility margin is calculated as natural gas operating revenue less cost of natural gas purchased for resale, which are captions presented on the Consolidated Statements of Operations.
Sierra Pacific’sPacific's cost of fuel and energy and capacity andcost of natural gas purchased for resale are directly recovered from its customers through regulatory recovery mechanisms and as a result, changes in the Sierra Pacific’sPacific's revenue are comparable to changes in such expenses. As such, management believes electric utility margin and natural gas utility margin more appropriately and concisely explainexplains profitability rather than a discussion of revenue and cost of sales separately. Management believes the presentation of electric utility margin and natural gas utility margin provides meaningful and valuable insight into the information management considers important to running the business and a measure of comparability to others in the industry.
Electric utility margin and natural gas utility margin isare not a measuremeasures calculated in accordance with GAAP and should be viewed as a supplement to and not a substitute for operating income which is the most comparable financial measure prepared in accordance with GAAP. The following table provides a reconciliation of utility margin to operating income (in millions):
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Electric utility margin:                     
Electric operating revenue $181
 $159
 $22
14 % $225
 $215
 $10
5 % $575
 $534
 $41
8 %
Cost of fuel, energy and capacity 77
 56
 21
38
Cost of fuel and energy 90
 76
 14
18
 245
 193
 52
27
Electric utility margin 104
 103
 1
1
 135
 139
 (4)(3) 330
 341
 (11)(3)
                     
Natural gas utility margin:                     
Natural gas operating revenue 41
 34
 7
21 % 14
 15
 (1)(7)% 74
 66
 8
12 %
Natural gas purchased for resale 23
 16
 7
44
Cost of natural gas purchased for resale 4
 4
 

 35
 26
 9
35
Natural gas utility margin 18
 18
 

 10
 11
 (1)(9) 39
 40
 (1)(3)
                     
Utility margin 122
 121
 1
1 % 145
 150
 (5)(3)% 369
 381
 (12)(3)%
                     
Operations and maintenance 39
 41
 (2)(5)% 53
 41
 12
29 % 140
 122
 18
15 %
Depreciation and amortization 30
 28
 2
7
 30
 29
 1
3
 89
 85
 4
5
Property and other taxes 6
 6
 

 6
 6
 

 18
 18
 

                     
Operating income $47
 $46
 $1
2 % $56
 $74
 $(18)(24)% $122
 $156
 $(34)(22)%



A comparison of Sierra Pacific's key operating results is as follows:

Electric Utility Margin
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Electric utility margin (in millions):                     
Electric operating revenue $181
 $159
 $22
14 % $225
 $215
 $10
5 % $575
 $534
 $41
8 %
Cost of fuel, energy and capacity 77
 56
 21
38
Cost of fuel and energy 90
 76
 14
18
 245
 193
 52
27
Electric utility margin $104
 $103
 $1
1
 $135
 $139
 $(4)(3) $330
 $341
 $(11)(3)
                     
GWh sold:                     
Residential 613
 630
 (17)(3)% 737
 736
 1
 % 1,877
 1,904
 (27)(1)%
Commercial 697
 679
 18
3
 874
 850
 24
3
 2,282
 2,271
 11

Industrial 819
 744
 75
10
 867
 797
 70
9
 2,497
 2,346
 151
6
Other 4
 4
 

 4
 4
 

 12
 12
 

Total fully bundled(1)
 2,133
 2,057
 76
4
 2,482
 2,387
 95
4
 6,668

6,533

135
2
Distribution only service 362
 348
 14
4
 375
 348
 27
8
 1,124

1,041

83
8
Total retail 2,495
 2,405
 90
4
 2,857
 2,735
 122
4
 7,792
 7,574
 218
3
Wholesale 171
 182
 (11)(6) 109
 103
 6
6
 391
 392
 (1)
Total GWh sold 2,666
 2,587
 79
3
 2,966
 2,838
 128
5
 8,183
 7,966
 217
3
                     
Average number of retail customers (in thousands):                     
Residential 298
 293
 5
2 % 300
 295
 5
2 % 299
 295
 4
1 %
Commercial 47
 47
 

 48
 47
 1
2
 48
 47
 1
2
Total 345
 340
 5
1
 348
 342
 6
2
 347
 342
 5
1
                     
Average per MWh:                     
Revenue - fully bundled(1)
 $77.93
 $69.89
 $8.04
12 % $84.84
 $85.07
 $(0.23) % $80.02
 $75.89
 $4.13
5 %
Revenue - wholesale $49.51
 $50.06
 $(0.55)(1) $58.09
 $61.21
 $(3.12)(5)% $49.92

$52.92

$(3.00)(6)%
Total cost of energy(2)
 $32.52
 $23.07
 $9.45
41
 $36.76
 $28.53
 $8.23
29 % $34.57
 $26.07
 $8.50
33 %
                     
Heating degree days 2,140
 2,133
 7
 % 14
 118
 (104)(88)% 2,639
 2,823
 (184)(7)%
Cooling degree days 1,043
 1,070
 (27)(3)% 1,283
 1,401
 (118)(8)%
                     
Sources of energy (GWh)(3):
                     
Natural gas 1,057
 1,010
 47
5 % 1,480
 1,221
 259
21 % 3,615

3,227

388
12 %
Coal 361
 355
 6
2
 558
 457
 101
22
Renewables 6
 5
 1
20
 12
 12
 

 30

31

(1)(3)
Total energy generated 1,063
 1,015
 48
5
 1,853
 1,588
 265
17
 4,203
 3,715
 488
13
Energy purchased 1,306
 1,423
 (117)(8) 785
 1,074
 (289)(27) 3,090
 3,698
 (608)(16)
Total 2,369
 2,438
 (69)(3) 2,638
 2,662
 (24)(1) 7,293
 7,413
 (120)(2)

*     Not meaningful
(1)Fully bundled includes sales to customers for combined energy, transmission and distribution services.
(2)The average total cost of energy per MWh includes the cost of fuel, purchased power and deferrals and does not include other costs.costs and excludes 35 GWh of coal and 136 GWh of gas generated energy that is purchased at cost by related parties for the third quarter of 2018. The average total cost of energy per MWh includes the cost of fuel, purchased power and deferrals and does not include other costs and excludes 54 GWh of coal and 185 GWh of gas generated energy that is purchased at cost by related parties for the first nine months of 2018. In the third quarter and first nine months of 2017, there were no GWh of coal or gas excluded.
(3)GWh amounts are net of energy used by the related generating facilities.



Natural Gas Utility Margin
 First Quarter Third Quarter First Nine Months
 2018 2017 Change 2018 2017 Change 2018 2017 Change
Natural gas utility margin (in millions):                     
Natural gas operating revenue $41
 $34
 $7
21 % $14
 $15
 $(1)(7)% $74
 $66
 $8
12 %
Natural gas purchased for resale 23
 16
 7
44
Cost of natural gas purchased for resale 4
 4
 

 35
 26
 9
35
Natural gas utility margin $18
 $18
 $

 $10
 $11
 $(1)(9) $39
 $40
 $(1)(3)
                     
Dth sold:                     
Residential 4,319
 4,459
 (140)(3)% 740
 835
 (95)(11)% 6,520
 6,866
 (346)(5)%
Commercial 2,112
 2,196
 (84)(4) 464
 494
 (30)(6) 3,364
 3,522
 (158)(4)
Industrial 690
 660
 30
5
 267
 244
 23
9
 1,364
 1,255
 109
9
Total retail 7,121
 7,315
 (194)(3) 1,471
 1,573
 (102)(6) 11,248
 11,643
 (395)(3)
                     
Average number of retail customers (in thousands) 166
 163
 3
2 % 167
 164
 3
2 % 167
 164
 3
2 %
Average revenue per retail Dth sold $5.61
 $4.58
 $1.03
22 % $8.98
 $8.59
 $0.39
5 % $6.44
 $5.47
 $0.97
18 %
Average cost of natural gas per retail Dth sold $3.20
 $2.20
 $1.00
45 % $2.69
 $2.53
 $0.16
6 % $3.11
 $2.20
 $0.91
41 %
Heating degree days 2,140
 2,133
 7
 % 14
 118
 (104)(88)% 2,639
 2,823
 (184)(7)%

Operations and maintenanceElectric utility margin decreased $2$4 million, or 5%3%, for the firstthird quarter of 2018 compared to 2017 primarily due to lower retail rates due to the tax rate reduction rider as a decrease in maintenance costs, partially offset by a change in accounting for retirement benefits.result of 2017 Tax Reform.

Other income (expense) Operations and maintenanceis favorable $2 increased $12 million, or 22%29%, for the firstthird quarter of 2018 compared to 2017 primarily due to a change in accounting for retirement benefits implemented January 2018.increased political activity expenses and higher transmission and distribution costs.

Income tax expense decreased $7$11 million, or 54%46%, for the firstthird quarter of 2018 compared to 2017. The effective tax rate was 15%27% in 2018 and 35% in 2017. The decrease in the effective tax rate is primarily due to 2017 Tax Reform, which reduced the United States federal statutorycorporate income tax rate.rate from 35% to 21%, effective January 1, 2018, offset by an increase in nondeductible expenses and unfavorable effects of ratemaking.

Electric utility margin decreased $11 million, or 3%, for the first nine months of 2018 compared to 2017 primarily due to:
$12 million in lower retail rates due to the tax rate reduction rider as a result of 2017 Tax Reform and
$2 million in lower customer volumes primarily from the impacts of weather.
The decrease in utility margin was partially offset by:
$1 million due to customer growth.

Operations and maintenance increased $18 million, or 15%, for the first nine months of 2018 compared to 2017 primarily due to increased political activity expenses and higher transmission and distribution costs.

Depreciation and amortization increased $4 million, or 5%, for the first nine months of 2018 compared to 2017 primarily due to higher plant placed in service.

Other income (expense) is favorable $4 million, or 16%, for the first nine months of 2018 compared to 2017 primarily due to lower pension expense.

Income tax expense decreased $21 million, or 46%, for the first nine months of 2018 compared to 2017. The effective tax rate was 25% in 2018 and 35% in 2017. The decrease in the effective tax rate is primarily due to 2017 Tax Reform, which reduced the United States federal corporate income tax rate from 35% to 21%, effective January 1, 2018, offset by an increase in nondeductible expenses.



Liquidity and Capital Resources

As of March 31,September 30, 2018, Sierra Pacific's total net liquidity was as follows (in millions):

Cash and cash equivalents $32
 $71
    
Credit facility 250
 250
Less:    
Tax-exempt bond support (80) (80)
Net credit facility 170
 170
    
Total net liquidity $202
 $241
Credit facility:    
Maturity date 2020
 2021

Operating Activities

Net cash flows from operating activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $75$208 million and $(12)$110 million, respectively. The change was due to the timing of payments and receipts including a decrease in fuel costs and increased collections from customers due to higher deferred energy rates, partially offset by higher federal tax payments and lower payments for operating costs.


higher contributions to the pension plan.

Sierra Pacific's income tax cash flows benefited in 2017 and 2016 from 50% bonus depreciation on qualifying assets placed in service. In December 2017, the 2017 Tax Reform was enacted which, among other items, reduces the federal corporate tax rate from 35% to 21% effective January 1, 2018, eliminated bonus depreciation on qualifying regulated utility assets acquired after September 27,December 31, 2017 and eliminated the deduction for production activities. Sierra Pacific believes for qualifying assets acquired on or before September 27,December 31, 2017, bonus depreciation will remain available for 2018 and 2019. In February 2018, Sierra Pacific made a filing with the PUCN proposing a tax rate reduction rider for the lower annual income tax expense anticipated to result from the 2017 Tax Reform for 2018 and beyond. The filing supported an annual rate reduction of $25 million. In March 2018, the PUCN issued an order approving the rate reduction proposed by Sierra Pacific. The new rates were effective April 1, 2018. The order has extended the procedural schedule to allow parties additional discovery relevant to the 2017 Tax Reform withand a hearing scheduledwas held in JuneJuly 2018. Sierra Pacific expects lower revenue collections and income tax payments as well as lower bonus depreciation benefits compared to 2017 as a result of the 2017 Tax Reform and the related regulatory treatment. Sierra Pacific does not expect the 2017 Tax Reform and related regulatory treatment to have a material adverse impact on its cash flows, subject to actual regulatory outcomes. The timing of Sierra Pacific's income tax cash flows from period to period can be significantly affected by the estimated federal income tax payment methods and assumptions for each payment date.

Investing Activities

Net cash flows from investing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $(45)$(139) million and $(41)$(131) million, respectively. The change was primarily due to increased capital expenditures.

Financing Activities

Net cash flows from financing activities for the three-monthnine-month periods ended March 31,September 30, 2018 and 2017 were $-$(2) million and $3$(6) million, respectively. The change was primarily due to proceeds from short-term debt in 2017, partially offset by dividends paid to NV Energy, Inc. in 2018.2017.

Ability to Issue Debt

Sierra Pacific's ability to issue debt is primarily impacted by its financing authority from the PUCN. As of March 31,September 30, 2018, Sierra Pacific has financing authority from the PUCN consisting of the ability to: (1) issue additional long-term debt securities of up to $350 million; (2) refinance up to $55 million of long-term debt securities; and (3) maintain a revolving credit facility of up to $600 million. Sierra Pacific's revolving credit facility contains a financial maintenance covenant which Sierra Pacific was in compliance with as of March 31,September 30, 2018.



Future Uses of Cash

Sierra Pacific has available a variety of sources of liquidity and capital resources, both internal and external, including net cash flows from operating activities, public and private debt offerings, the use of its secured revolving credit facility, capital contributions and other sources. These sources are expected to provide funds required for current operations, capital expenditures, debt retirements and other capital requirements. The availability and terms under which Sierra Pacific has access to external financing depends on a variety of factors, including Sierra Pacific's credit ratings, investors' judgment of risk and conditions in the overall capital markets, including the condition of the utility industry.

Capital Expenditures

Sierra Pacific has significant future capital requirements. Capital expenditure needs are reviewed regularly by management and may change significantly as a result of these reviews, which may consider, among other factors, impacts to customers' rates; changes in environmental and other rules and regulations; outcomes of regulatory proceedings; changes in income tax laws; general business conditions; load projections; system reliability standards; the cost and efficiency of construction labor, equipment and materials; commodity prices; and the cost and availability of capital. Prudently incurred expenditures for compliance-related items such as pollution-control technologies, replacement generation and associated operating costs are generally incorporated into Sierra Pacific's regulated retail rates. Expenditures for certain assets may ultimately include acquisition of existing assets.



Sierra Pacific's historical and forecast capital expenditures, each of which exclude amounts for non-cash equity AFUDC and other non-cash items are as follows (in millions):
Three-Month Periods AnnualNine-Month Periods Annual
Ended March 31, ForecastEnded September 30, Forecast
2017 2018 20182017 2018 2018
          
Distribution$22
 $31
 $156
$61
 $101
 $158
Transmission system investment1
 1
 13
9
 3
 5
Other18
 13
 53
61
 35
 51
Total$41
 $45
 $222
$131
 $139
 $214

Sierra Pacific's forecast capital expenditures include investments that relaterelated to operating projects that consist of routine expenditures for transmission, distribution, generation and other infrastructure needed to serve existing and expected demand.

Contractual Obligations

As of March 31,September 30, 2018, there have been no material changes outside the normal course of business in contractual obligations from the information provided in Item 7 of Sierra Pacific's Annual Report on Form 10-K for the year ended December 31, 2017.

Regulatory Matters

Sierra Pacific is subject to comprehensive regulation. Refer to "Regulatory Matters" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for discussion regarding Sierra Pacific's current regulatory matters.

Integrated Resource Plan ("IRP")

In June 2018, Nevada Power and Sierra Pacific filed with the PUCN a joint application for approval of a 2019-2038 Triennial IRP, 2019-2021 Action Plan, and 2019-2021 Energy Supply Plan ("ESP"). As part of the filings, the Nevada Utilities seek the PUCN authorization to add 1,001 MW of renewable energy and 100 MW of energy storage capacity. The Nevada Utilities are requesting to achieve with power purchase agreements from six new solar generating resources, three battery storage systems, transmission network upgrades and the conditional early retirement of North Valmy Unit 1 generating station. The agreements are conditional upon voters not approving the ballot measure on energy choice in November 2018.



Environmental Laws and Regulations

Sierra Pacific is subject to federal, state and local laws and regulations regarding air and water quality, RPS, emissions performance standards, climate change, coal combustion byproduct disposal, hazardous and solid waste disposal, protected species and other environmental matters that have the potential to impact Sierra Pacific's current and future operations. In addition to imposing continuing compliance obligations and capital expenditure requirements, these laws and regulations provide regulators with the authority to levy substantial penalties for noncompliance including fines, injunctive relief and other sanctions. These laws and regulations are administered by the EPA and various state and local agencies. All such laws and regulations are subject to a range of interpretation, which may ultimately be resolved by the courts. Environmental laws and regulations continue to evolve, and Sierra Pacific is unable to predict the impact of the changing laws and regulations on its operations and consolidated financial results. Sierra Pacific believes it is in material compliance with all applicable laws and regulations. Refer to "Liquidity and Capital Resources" for discussion of Sierra Pacific's forecasted environmental-related capital expenditures.

Refer to "Environmental Laws and Regulations" in Berkshire Hathaway Energy's Part I, Item 2 of this Form 10-Q for additional information regarding environmental laws and regulations.

New Accounting Pronouncements

For a discussion of new accounting pronouncements affecting Sierra Pacific, refer to Note 2 of Notes to Consolidated Financial Statements in Sierra Pacific's Part I, Item 1 of this Form 10-Q.

Critical Accounting Estimates

Certain accounting measurements require management to make estimates and judgments concerning transactions that will be settled several years in the future. Amounts recognized on the Consolidated Financial Statements based on such estimates involve numerous assumptions subject to varying and potentially significant degrees of judgment and uncertainty and will likely change in the future as additional information becomes available. Estimates are used for, but not limited to, the accounting for the effects of certain types of regulation, derivatives, impairment of long-lived assets, income taxes and revenue recognition - unbilled revenue. For additional discussion of Sierra Pacific's critical accounting estimates, see Item 7 of Sierra Pacific's Annual Report on Form 10‑K for the year ended December 31, 2017. There have been no significant changes in Sierra Pacific's assumptions regarding critical accounting estimates since December 31, 2017.



Item 3.Quantitative and Qualitative Disclosures About Market Risk

For quantitative and qualitative disclosures about market risk affecting the Registrants, see Item 7A of each Registrant's Annual Report on Form 10-K for the year ended December 31, 2017. Each Registrant's exposure to market risk and its management of such risk has not changed materially since December 31, 2017. Refer to Note 9 of the Notes to Consolidated Financial Statements of PacifiCorp in Part I, Item 1 of this Form 10-Q for disclosure of the respective Registrant's derivative positions as of March 31,September 30, 2018.

Item 4.Controls and Procedures

At the end of the period covered by this Quarterly Report on Form 10-Q, each of Berkshire Hathaway Energy Company, PacifiCorp, MidAmerican Funding, LLC, MidAmerican Energy Company, Nevada Power Company and Sierra Pacific Power Company carried out separate evaluations, under the supervision and with the participation of each such entity's management, including its Chief Executive Officer (principal executive officer) and its Chief Financial Officer (principal financial officer), or persons performing similar functions, of the effectiveness of the design and operation of its disclosure controls and procedures (as defined in Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended). Based upon these evaluations, management of each such entity, including its Chief Executive Officer (principal executive officer) and its Chief Financial Officer (principal financial officer), or persons performing similar functions, in each case, concluded that the disclosure controls and procedures for such entity were effective to ensure that information required to be disclosed by such entity in the reports that it files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the United States Securities and Exchange Commission's rules and forms, and is accumulated and communicated to its management, including its Chief Executive Officer (principal executive officer) and its Chief Financial Officer (principal financial officer), or persons performing similar functions, in each case, as appropriate to allow timely decisions regarding required disclosure by it. Each such entity hereby states that there has been no change in its internal control over financial reporting during the quarter ended March 31,September 30, 2018 that has materially affected, or is reasonably likely to materially affect, its internal control over financial reporting.



PART II

Item 1.Legal Proceedings

Not applicable.

Item 1A.Risk Factors

There has been no material change to each Registrant's risk factors from those disclosed in Item 1A of each Registrant's Annual Report on Form 10-K for the year ended December 31, 2017.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

Not applicable.

Item 3.Defaults Upon Senior Securities

Not applicable.

Item 4.Mine Safety Disclosures

Information regarding Berkshire Hathaway Energy's and PacifiCorp's mine safety violations and other legal matters disclosed in accordance with Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act is included in Exhibit 95 to this Form 10-Q.

Item 5.Other Information

Not applicable.

Item 6.Exhibits

The following is a list of exhibits filed as part of this Quarterly Report.



Exhibit No.Description

BERKSHIRE HATHAWAY ENERGY
4.1
4.2
10.1
10.2
10.3
15.1
31.1
31.2
32.1
32.2



Exhibit No.Description

PACIFICORP
15.2
31.3
31.4
32.3
32.4



Exhibit No.Description

BERKSHIRE HATHAWAY ENERGY AND PACIFICORP
4.3
10.4
10.5
95

MIDAMERICAN ENERGY
15.3
31.5
31.6
32.5
32.6

BERKSHIRE HATHAWAY ENERGY AND MIDAMERICAN ENERGY
10.6

MIDAMERICAN FUNDING
31.7
31.8
32.7
32.8



Exhibit No.Description

NEVADA POWER
3.1
15.4
31.9
31.10
32.9
32.10


Exhibit No.Description

BERKSHIRE HATHAWAY ENERGY AND NEVADA POWER
4.14.4
10.7

SIERRA PACIFIC
3.2
31.11
31.12
32.11
32.12

BERKSHIRE HATHAWAY ENERGY AND SIERRA PACIFIC
10.8

ALL REGISTRANTS
101The following financial information from each respective Registrant's Quarterly Report on Form 10-Q for the quarter ended March 31,September 30, 2018, is formatted in XBRL (eXtensible Business Reporting Language) and included herein: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Equity, (v) the Consolidated Statements of Cash Flows, and (vi) the Notes to Consolidated Financial Statements, tagged in summary and detail.


SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 BERKSHIRE HATHAWAY ENERGY COMPANY
  
Date: May 7,November 2, 2018/s/ Patrick J. Goodman
 Patrick J. Goodman
 Executive Vice President and Chief Financial Officer
 (principal financial and accounting officer)
  
 PACIFICORP
  
Date: May 7,November 2, 2018/s/ Nikki L. Kobliha
 Nikki L. Kobliha
 Vice President, Chief Financial Officer and Treasurer
 (principal financial and accounting officer)
  
 MIDAMERICAN FUNDING, LLC
 MIDAMERICAN ENERGY COMPANY
  
Date: May 7,November 2, 2018/s/ Thomas B. Specketer
 Thomas B. Specketer
 Vice President and Controller
 of MidAmerican Funding, LLC and
 Vice President and Chief Financial Officer
 of MidAmerican Energy Company
 (principal financial and accounting officer)
  
 NEVADA POWER COMPANY
  
Date: May 7,November 2, 2018/s/ Michael E. Kevin BethelCole
 Michael E. Kevin BethelCole
 Senior Vice President and Chief Financial Officer
 (principal financial and accounting officer)
  
 SIERRA PACIFIC POWER COMPANY
  
Date: May 7,November 2, 2018/s/ Michael E. Kevin BethelCole
 Michael E. Kevin BethelCole
 Senior Vice President and Chief Financial Officer
 (principal financial and accounting officer)

149170