UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2021March 31, 2022
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: 001-03140
Northern States Power Company
(Exact nameName of registrantRegistrant as specifiedSpecified in its charter)Charter)
Wisconsin39-0508315
(State or other jurisdictionOther Jurisdiction of incorporationIncorporation or organization)Organization)(I.R.S Employer Identification No.)
1414 West Hamilton AvenueEau ClaireWisconsin54701
(Address of principal executive offices)Principal Executive Offices)(Zip Code)
(715)737-2625
(Registrant’s telephone number, including area code)
N/A
(Former name, former address and former fiscal year, if changed since last report)Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
N/AN/AN/A

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.  Yes   No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 registrant was required to submit such files).  Yes   No
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.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has 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.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
ClassOutstanding at July 29, 2021April 28, 2022
Common Stock, $100 par value933,000 shares
Northern States Power Company meets the conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q and is therefore filing this Form 10-Q with the reduced disclosure format specified in General Instruction H(2) to such Form 10-Q.



TABLE OF CONTENTS
PART IFINANCIAL INFORMATION
Item 1 —
Item 2 —
Item 4 —
   
PART IIOTHER INFORMATION 
Item 1 —
Item 1A —
Item 6 —
   
This Form 10-Q is filed by Northern States Power Company, a Wisconsin corporation (NSP-Wisconsin).NSP-Wisconsin. NSP-Wisconsin is a wholly owned subsidiary of Xcel Energy Inc. Additional information on Xcel Energy is available on various filings with the Securities and Exchange Commission.SEC. This report should be read in its entirety.



Definitions of Abbreviations
Xcel Energy Inc.’s Subsidiaries and Affiliates (current and former)
e primee prime inc.
NSP-MinnesotaNorthern States Power Company, a Minnesota corporation
NSP-WisconsinNorthern States Power Company, a Wisconsin corporation
PSCoPublic Service Company of Colorado
SPSSouthwestern Public Service Company
Utility subsidiariesNSP-Minnesota, NSP-Wisconsin, PSCo and SPS
Xcel EnergyXcel Energy Inc. and its subsidiaries
Federal and State Regulatory Agencies
D.C. CircuitUnited States Court of Appeals for the District of Columbia Circuit
EPAUnited States Environmental Protection Agency
FERCFederal Energy Regulatory Commission
IRSInternal Revenue Service
PSCWPublic Service Commission of Wisconsin
SECSecurities and Exchange Commission
Other
ASCFASB Accounting Standards Codification
C&ICommercial and Industrial
CEOChief executive officer
CFOChief financial officer
COVID-19Novel coronavirus
ETRCSPVEffective tax rate
FASBFinancial Accounting Standards BoardCrystalline Silicon Photovoltaic
GAAPUnited States generally accepted accounting principles
MDLMulti-district litigation
MGPManufactured gas plant
MISOMidcontinent Independent System Operator, Inc.
NOLNet operating loss
O&MOperating and maintenance
PFASPer- and PolyFluoroAlkyl Substances
ROEReturn on equity
RTORegional Transmission Organization
TOsTransmission owners
Forward-Looking Statements
Except for the historical statements contained in this report, the matters discussed herein are forward-looking statements that are subject to certain risks, uncertainties and assumptions. Such forward-looking statements, including those relating to future sales, future expenses, future tax rates, future operating performance, estimated base capital expenditures and financing plans, projected capital additions and forecasted annual revenue requirements with respect to rider filings, expected rate increases to customers, expectations and intentions regarding regulatory proceedings, and expected impactsimpact on our results of operations, financial condition and cash flows orof resettlement calculations and credit losses relating to certain energy transactions, as well as assumptions and other statements are intended to be identified in this document by the words “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “objective,” “outlook,” “plan,” “project,” “possible,” “potential,” “should,” “will,” “would” and similar expressions. Actual results may vary materially. Forward-looking statements speak only as of the date they are made, and we expressly disclaim any obligation to update any forward-looking information. The following factors, in addition to those discussed elsewhere in this Quarterly Report on Form 10-Q and in other filings with the SEC (including NSP-Wisconsin's Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2020,2021 and subsequent filings),filings with the SEC, could cause actual results to differ materially from management expectations as suggested by such forward-looking information: uncertainty around the impacts and duration of the COVID-19 pandemic;pandemic, including potential workforce impacts resulting from vaccination requirements, quarantine policies or government restrictions, and sales volatility; operational safety; successful long-term operational planning; commodity risks associated with energy markets and production; rising energy prices and fuel costs; qualified employee work force and third-party contractor factors; violations of our Code of Conduct; ability to recover costs; changes in regulation; reductions in our credit ratings and the cost of maintaining certain contractual relationships; general economic conditions, including inflation rates, monetary fluctuations, supply chain constraints and their impact on capital expenditures andand/or the ability of NSP-Wisconsin and its subsidiaries to obtain financing on favorable terms; availability or cost of capital; our customers’ and counterparties’ ability to pay their debts to us; assumptions and costs relating to funding our employee benefit plans and health care benefits; tax laws; effects of geopolitical events, including war and acts of terrorism; cyber security threats and data security breaches; seasonal weather patterns; changes in environmental laws and regulations; climate change and other weather; natural disaster and resource depletion, including compliance with any accompanying legislative and regulatory changes; and costs of potential regulatory penalties.penalties; and regulatory changes and/or limitations related to the use of natural gas as an energy source.


Table of Contents

PART I — FINANCIAL INFORMATION
ITEM 1 — FINANCIAL STATEMENTS
NSP-WISCONSIN AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
(amounts in millions)
Three Months Ended June 30Six Months Ended June 30 Three Months Ended March 31
2021202020212020 20222021
Operating revenuesOperating revenues  Operating revenues  
Electric, non-affiliatesElectric, non-affiliates$178 $158 $356 $329 Electric, non-affiliates$203 $178 
Electric, affiliatesElectric, affiliates46 41 92 82 Electric, affiliates47 46 
Natural gasNatural gas31 19 88 64 Natural gas78 57 
Total operating revenuesTotal operating revenues255 218 536 475 Total operating revenues328 281 
Operating expensesOperating expenses Operating expenses 
Electric fuel and purchased power, non-affiliatesElectric fuel and purchased power, non-affiliates10 Electric fuel and purchased power, non-affiliates
Purchased power, affiliatesPurchased power, affiliates106 91 206 186 Purchased power, affiliates108 100 
Cost of natural gas sold and transportedCost of natural gas sold and transported20 51 28 Cost of natural gas sold and transported45 31 
Operating and maintenance expensesOperating and maintenance expenses50 45 99 94 Operating and maintenance expenses53 49 
Conservation program expensesConservation program expensesConservation program expenses
Depreciation and amortizationDepreciation and amortization36 39 73 77 Depreciation and amortization38 37 
Taxes (other than income taxes)Taxes (other than income taxes)15 14 Taxes (other than income taxes)
Total operating expensesTotal operating expenses228 195 460 411 Total operating expenses259 232 
Operating incomeOperating income27 23 76 64 Operating income69 49 
Other expense, net(2)(4)
Allowance for funds used during construction — equityAllowance for funds used during construction — equityAllowance for funds used during construction — equity
Interest charges and financing costsInterest charges and financing costsInterest charges and financing costs
Interest chargesInterest charges12 10 21 20 Interest charges11 
Allowance for funds used during construction — debtAllowance for funds used during construction — debt(1)(1)(1)(1)Allowance for funds used during construction — debt(1)— 
Total interest charges and financing costsTotal interest charges and financing costs11 20 19 Total interest charges and financing costs10 
Income before income taxesIncome before income taxes17 13 58 44 Income before income taxes61 41 
Income tax expense (benefit)12 (2)
Income tax expenseIncome tax expense14 
Net incomeNet income$14 $12 $46 $46 Net income$47 $32 

See Notes to Consolidated Financial Statements

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NSP-WISCONSIN AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
(amounts in millions)
Six Months Ended June 30 Three Months Ended March 31
20212020 20222021
Operating activitiesOperating activities  Operating activities  
Net incomeNet income$46 $46 Net income$47 $32 
Adjustments to reconcile net income to cash provided by operating activities:Adjustments to reconcile net income to cash provided by operating activities:Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortizationDepreciation and amortization73 78 Depreciation and amortization39 37 
Deferred income taxesDeferred income taxes10 (15)Deferred income taxes(1)
Allowance for equity funds used during constructionAllowance for equity funds used during construction(2)(3)Allowance for equity funds used during construction(2)(1)
Provision for bad debtsProvision for bad debtsProvision for bad debts— 
Changes in operating assets and liabilities:Changes in operating assets and liabilities:Changes in operating assets and liabilities:
Accounts receivableAccounts receivable10 (4)Accounts receivable(17)
Accrued unbilled revenuesAccrued unbilled revenues10 Accrued unbilled revenues18 10 
InventoriesInventories(1)Inventories
Other current assetsOther current assets(6)Other current assets
Accounts payableAccounts payable(3)Accounts payable(8)(9)
Net regulatory assets and liabilitiesNet regulatory assets and liabilities(47)Net regulatory assets and liabilities(47)
Other current liabilitiesOther current liabilities(2)(2)Other current liabilities15 (3)
Pension and other employee benefit obligationsPension and other employee benefit obligations(5)(7)Pension and other employee benefit obligations(1)(5)
Other, netOther, netOther, net
Net cash provided by operating activitiesNet cash provided by operating activities94 108 Net cash provided by operating activities108 36 
Investing activitiesInvesting activitiesInvesting activities
Capital/construction expendituresCapital/construction expenditures(111)(121)Capital/construction expenditures(87)(51)
Net cash used in investing activitiesNet cash used in investing activities(111)(121)Net cash used in investing activities(87)(51)
Financing activitiesFinancing activitiesFinancing activities
Repayments of short-term borrowings, net(19)(65)
(Repayments of) proceeds from short-term borrowings, net(Repayments of) proceeds from short-term borrowings, net(83)
Borrowings under utility money pool arrangementBorrowings under utility money pool arrangement186 Borrowings under utility money pool arrangement235 (56)
Repayments under utility money pool arrangementRepayments under utility money pool arrangement(153)Repayments under utility money pool arrangement(187)43 
Proceeds from long-term debt98 
Capital contributions from parentCapital contributions from parent40 37 Capital contributions from parent31 39 
Dividends paid to parentDividends paid to parent(38)(32)Dividends paid to parent(27)(20)
Other, netOther, netOther, net
Net cash provided by financing activities17 38 
Net cash (used in) provided by financing activitiesNet cash (used in) provided by financing activities(30)15 
Net change in cash, cash equivalents and restricted cashNet change in cash, cash equivalents and restricted cash25 Net change in cash, cash equivalents and restricted cash(9)— 
Cash, cash equivalents and restricted cash at beginning of periodCash, cash equivalents and restricted cash at beginning of periodCash, cash equivalents and restricted cash at beginning of period11 
Cash, cash equivalents and restricted cash at end of periodCash, cash equivalents and restricted cash at end of period$$26 Cash, cash equivalents and restricted cash at end of period$$
Supplemental disclosure of cash flow information:Supplemental disclosure of cash flow information:Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)Cash paid for interest (net of amounts capitalized)$(19)$(18)Cash paid for interest (net of amounts capitalized)$(10)$(10)
Cash paid for income taxes, netCash paid for income taxes, net(13)(13)Cash paid for income taxes, net— (1)
Supplemental disclosure of non-cash investing and financing transactions:Supplemental disclosure of non-cash investing and financing transactions:Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additionsAccrued property, plant and equipment additions$19 $18 Accrued property, plant and equipment additions$17 $14 
Inventory transfers to property, plant and equipmentInventory transfers to property, plant and equipmentInventory transfers to property, plant and equipment
Allowance for equity funds used during constructionAllowance for equity funds used during construction23Allowance for equity funds used during construction21

See Notes to Consolidated Financial Statements
5

Table of Contents

NSP-WISCONSIN AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (UNAUDITED)
(amounts in millions, except share and per share data)
June 30, 2021Dec. 31, 2020 March 31, 2022Dec. 31, 2021
AssetsAssets  Assets  
Current assetsCurrent assets  Current assets  
Cash and cash equivalentsCash and cash equivalents$$Cash and cash equivalents$$11 
Accounts receivable, netAccounts receivable, net61 70 Accounts receivable, net85 71 
Accrued unbilled revenuesAccrued unbilled revenues48 53 Accrued unbilled revenues51 69 
Other ReceivablesOther ReceivablesOther Receivables
InventoriesInventories15 15 Inventories22 27 
Regulatory assetsRegulatory assets47 19 Regulatory assets38 21 
Prepaid taxesPrepaid taxes30 24 Prepaid taxes19 25 
Prepayments and otherPrepayments and otherPrepayments and other
Total current assetsTotal current assets210 191 Total current assets227 234 
Property, plant and equipment, netProperty, plant and equipment, net2,541 2,484 Property, plant and equipment, net2,701 2,660 
Other assetsOther assetsOther assets
Regulatory assetsRegulatory assets216 215 Regulatory assets208 225 
Other InvestmentsOther InvestmentsOther Investments
OtherOtherOther
Total other assetsTotal other assets221 219 Total other assets212 229 
Total assetsTotal assets$2,972 $2,894 Total assets$3,140 $3,123 
Liabilities and EquityLiabilities and EquityLiabilities and Equity
Current liabilitiesCurrent liabilitiesCurrent liabilities
Current portion of long-term debt$19 $19 
Short-term debtShort-term debt19 Short-term debt48 83 
Borrowings under utility money pool arrangement33 
Accounts payableAccounts payable47 41 Accounts payable45 69 
Accounts payable to affiliatesAccounts payable to affiliates29 15 Accounts payable to affiliates21 23 
Dividends payable to parentDividends payable to parent15 19 Dividends payable to parent21 26 
Regulatory liabilitiesRegulatory liabilities31 Regulatory liabilities14 
Taxes accruedTaxes accrued12 Taxes accrued25 10 
Environmental liabilitiesEnvironmental liabilitiesEnvironmental liabilities
Accrued interestAccrued interest10 10 Accrued interest10 10 
OtherOther17 15 Other16 17 
Total current liabilitiesTotal current liabilities189 185 Total current liabilities204 246 
Deferred credits and other liabilitiesDeferred credits and other liabilitiesDeferred credits and other liabilities
Deferred income taxesDeferred income taxes321 307 Deferred income taxes326 325 
Deferred investment tax creditsDeferred investment tax creditsDeferred investment tax credits
Regulatory liabilitiesRegulatory liabilities369 350 Regulatory liabilities377 372 
Environmental liabilitiesEnvironmental liabilities15 16 Environmental liabilities13 14 
Customer advancesCustomer advances21 20 Customer advances24 23 
Pension and employee benefit obligationsPension and employee benefit obligations23 28 Pension and employee benefit obligations15 16 
OtherOther27 33 Other31 32 
Total deferred credits and other liabilitiesTotal deferred credits and other liabilities782 754 Total deferred credits and other liabilities791 787 
Commitments and contingenciesCommitments and contingencies00Commitments and contingencies00
CapitalizationCapitalizationCapitalization
Long-term debtLong-term debt888 887 Long-term debt987 987 
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares
outstanding at June 30, 2021 and Dec. 31, 2020, respectively
93 93 
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares
outstanding at March. 31, 2022 and Dec. 31, 2021, respectively
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares
outstanding at March. 31, 2022 and Dec. 31, 2021, respectively
93 93 
Additional paid in capitalAdditional paid in capital638 605 Additional paid in capital672 642 
Retained earningsRetained earnings382 370 Retained earnings393 368 
Total common stockholder's equityTotal common stockholder's equity1,113 1,068 Total common stockholder's equity1,158 1,103 
Total liabilities and equityTotal liabilities and equity$2,972 $2,894 Total liabilities and equity$3,140 $3,123 

See Notes to Consolidated Financial Statements
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NSP-WISCONSIN AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY (UNAUDITED)
(amounts in millions, except share data; shares in thousands)
Common Stock IssuedRetained Earnings Total Common Stockholder's EquityCommon Stock IssuedRetained Earnings Total Common Stockholder's Equity
SharesPar ValueAdditional Paid
In Capital
SharesPar ValueAdditional Paid
In Capital
Three Months Ended June 30, 2021 and 2020
Balance at March 31, 2020933 $93 $547 $353 $993 
Three Months Ended March. 31, 2022 and 2021Three Months Ended March. 31, 2022 and 2021
Balance at Dec. 31, 2020Balance at Dec. 31, 2020933 $93 $605 $370 $1,068 
Net incomeNet income12 12 Net income32 32 
Common dividends declared to parentCommon dividends declared to parent(20)(20)Common dividends declared to parent(20)(20)
Contribution of capital by parentContribution of capital by parent30 30 Contribution of capital by parent30 30 
Balance at June 30, 2020933 $93 $577 $345 $1,015 
Balance at March 31, 2021Balance at March 31, 2021933 $93 $635 $382 $1,110 
Balance at March 31, 2021933 $93 $635 $382 $1,110 
Balance at Dec. 31, 2021Balance at Dec. 31, 2021933 $93 $642 $368 $1,103 
Net incomeNet income1414Net income4747
Common dividends declared to parentCommon dividends declared to parent(14)(14)Common dividends declared to parent(22)(22)
Contribution of capital by parentContribution of capital by parentContribution of capital by parent30 30 
Balance at June 30, 2021933 $93 $638 $382 $1,113 
Balance at March 31, 2022Balance at March 31, 2022933 $93 $672 $393 $1,158 
See Notes to Consolidated Financial StatementsSee Notes to Consolidated Financial Statements


Common Stock IssuedRetained Earnings Total Common Stockholder's Equity
SharesPar ValueAdditional Paid
In Capital
Six Months Ended June 30, 2021 and 2020
Balance at Dec. 31, 2019933 $93 $537 $336 $966 
Net income46 46 
Common dividends declared to parent(37)(37)
Contribution of capital by parent40 40 
Balance at June 30, 2020933 $93 $577 $345 $1,015 
Balance at Dec. 31, 2020933 $93 $605 $370 $1,068 
Net income4646
Common dividends declared to parent(34)(34)
Contribution of capital by parent33 33 
Balance at June 30, 2021933 $93 $638 $382 $1,113 
See Notes to Consolidated Financial Statements




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NSP-WISCONSIN AND SUBSIDIARIES
Notes to Consolidated Financial Statements (UNAUDITED)
In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly, in accordance with GAAP, the financial position of NSP-Wisconsin and its subsidiaries as of June 30, 2021March 31, 2022 and Dec. 31, 2020;2021; the results of NSP-Wisconsin's operations, including the components of net income, changes in stockholder's equity and comprehensive income for the three and six months ended June 30, 2021March 31, 2022 and 2020;2021; and itsNSP-Wisconsin's cash flows for the sixthree months ended June 30, 2021March 31, 2022 and 2020.2021.
All adjustments are of a normal, recurring nature, except as otherwise disclosed. Management has also evaluated the impact of events occurring after June 30, 2021March 31, 2022 up to the date of issuance of these consolidated financial statements. These statements contain all necessary adjustments and disclosures resulting from that evaluation. The Dec. 31, 20202021 balance sheet information has been derived from the audited 20202021 consolidated financial statements included in the NSP-Wisconsin Annual Report on Form 10-K for the year ended Dec. 31, 2020.2021.
Notes to the consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for Quarterly Reports on Form 10-Q. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP on an annual basis have been condensed or omitted pursuant to such rules and regulations. For further information, refer to the consolidated financial statements and notes thereto included in the NSP-Wisconsin Annual Report on Form 10-K for the year ended Dec. 31, 2020,2021, filed with the SEC on Feb. 17, 2021.23, 2022. Due to the seasonality of NSP-Wisconsin’s electric and natural gas sales, interim results are not necessarily an appropriate base from which to project annual results.
1. Summary of Significant Accounting Policies
The significant accounting policies set forth in Note 1 to the consolidated financial statements in the NSP-Wisconsin Annual Report on Form 10-K for the year ended Dec. 31, 20202021 appropriately represent, in all material respects, the current status of accounting policies and are incorporated herein by reference.
2. Accounting Pronouncements
Recently Adopted
Credit Losses — In 2016,As of March 31, 2022, there was no material impact from the FASB issued Financial Instruments - Credit Losses, Topic 326 (ASC Topic 326), which changes how entities account for losses on receivables and certain other assets. The guidance requires use of a current expected credit loss model, which may result in earlier recognition of credit losses than under previous accounting standards.
NSP-Wisconsin implemented the guidance using a modified-retrospective approach, recognizing an immaterial cumulative effect charge (after tax) to retained earnings on Jan 1. 2020. The Jan. 1, 2020recent adoption of ASC Topic 326 did not have a significantnew accounting pronouncements, nor expected material impact from recently issued accounting pronouncements yet to be adopted, on NSP-Wisconsin’s consolidatedNSP-Wisconsin's financial statements.
3. Selected Balance Sheet Data
(Millions of dollars)(Millions of dollars)June 30, 2021Dec. 31, 2020(Millions of dollars)March 31, 2022Dec. 31, 2021
Accounts receivable, netAccounts receivable, netAccounts receivable, net
Accounts receivableAccounts receivable$68 $78 Accounts receivable$94 $79 
Less allowance for bad debtsLess allowance for bad debts(7)(8)Less allowance for bad debts(9)(8)
Accounts receivable, netAccounts receivable, net$61 $70 Accounts receivable, net$85 $71 
(Millions of dollars)March 31, 2022Dec. 31, 2021
Inventories
Materials and supplies$$
Fuel12 
Natural gas10 
Total inventories$22 $27 

(Millions of dollars)June 30, 2021Dec. 31, 2020
Inventories
Materials and supplies$$
Fuel
Natural gas
Total inventories$15 $15 

(Millions of dollars)(Millions of dollars)June 30, 2021Dec. 31, 2020(Millions of dollars)March 31, 2022Dec. 31, 2021
Property, plant and equipment, netProperty, plant and equipment, netProperty, plant and equipment, net
Electric plantElectric plant$3,253 $3,197 Electric plant$3,408 $3,348 
Natural gas plantNatural gas plant402 391 Natural gas plant428 423 
Common and other propertyCommon and other property224 221 Common and other property243 233 
Construction work in progressConstruction work in progress99 71 Construction work in progress124 134 
Total property, plant and equipmentTotal property, plant and equipment3,978 3,880 Total property, plant and equipment4,203 4,138 
Less accumulated depreciationLess accumulated depreciation(1,437)(1,396)Less accumulated depreciation(1,502)(1,478)
Property, plant and equipment, netProperty, plant and equipment, net$2,541 $2,484 Property, plant and equipment, net$2,701 $2,660 
4. Borrowings and Other Financing Instruments
Short-Term Borrowings
NSP-Wisconsin meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings under its credit facility and the money pool.
Money Pool — Xcel Energy Inc. and its utility subsidiaries have established a money pool arrangement that allows for short-term investments in and borrowings between the utility subsidiaries. Xcel Energy Inc. may make investments in the utility subsidiaries at market-based interest rates; however, the money pool arrangement does not allow the utility subsidiaries to make investments in Xcel Energy Inc.
Money pool borrowings for NSP-Wisconsin:
(Amounts in Millions, Except Interest Rates)(Amounts in Millions, Except Interest Rates)Three Months Ended June 30, 2021Year Ended Dec. 31, 2020(Amounts in Millions, Except Interest Rates)Three Months Ended March 31, 2022Year Ended Dec. 31, 2021
Borrowing limitBorrowing limit$150 $Borrowing limit$150 $150 
Amount outstanding at period endAmount outstanding at period end33 Amount outstanding at period end48 — 
Average amount outstandingAverage amount outstanding20 Average amount outstanding19 16 
Maximum amount outstandingMaximum amount outstanding41 Maximum amount outstanding65 78 
Weighted average interest rate, computed on a daily basisWeighted average interest rate, computed on a daily basis0.04 %N/AWeighted average interest rate, computed on a daily basis0.13 %0.05 %
Weighted average interest rate at period endWeighted average interest rate at period end0.02 N/AWeighted average interest rate at period end0.19 N/A
Commercial Paper Commercial paper outstanding for NSP-Wisconsin:
(Amounts in Millions, Except Interest Rates)(Amounts in Millions, Except Interest Rates)Three Months Ended June 30, 2021Year Ended Dec. 31, 2020(Amounts in Millions, Except Interest Rates)Three Months Ended March 31, 2022Year Ended Dec. 31, 2021
Borrowing limitBorrowing limit$150 $150 Borrowing limit$150 $150 
Amount outstanding at period endAmount outstanding at period end19 Amount outstanding at period end— 83 
Average amount outstandingAverage amount outstanding30 Average amount outstanding48 
Maximum amount outstandingMaximum amount outstanding95 Maximum amount outstanding123 83 
Weighted average interest rate, computed on a daily basisWeighted average interest rate, computed on a daily basisN/A1.59 %Weighted average interest rate, computed on a daily basis0.23 %0.18 %
Weighted average interest rate at period endWeighted average interest rate at period endN/A0.17 Weighted average interest rate at period endN/A0.21 
Letters of Credit — NSP-Wisconsin uses letters of credit, generally with terms of one year, to provide financial guarantees for certain obligations. At both June 30, 2021March 31, 2022 and Dec. 31, 2020,2021, there werewe 0re no l lettersetters of credit outstanding under the credit facility.
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Revolving Credit Facility In order to issue its commercial paper, NSP-Wisconsin must have a revolving credit facility in place at least equal to the amount of its commercial paper borrowing limit and cannot issue commercial paper exceeding available capacity under this credit facility. The credit facility provides short-term financing in the form of notes payable to banks, letters of credit and back-up support for commercial paper borrowings.
NSP-Wisconsin has the right to request an extension of the revolving credit facility termination date for an additional one-year period. All extension requests are subject to majority bank group approval.
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As of June 30, 2021,March 31, 2022, NSP-Wisconsin had the following committed revolving credit facility available (in millions of dollars):
Credit Facility (a)
Credit Facility (a)
Outstanding (b)
Available
Credit Facility (a)
Outstanding (b)
Available
$150 $$150 150 $— $150 
(a)Expires in June 2024.
(b)Includes outstanding commercial paper.
All credit facility bank borrowings, outstanding letters of credit and outstanding commercial paper reduce the available capacity under the credit facility. NSP-Wisconsin had 0no direct advances on the credit facility outstanding at June 30, 2021March 31, 2022 and Dec. 31, 2020.2021.
Other Short-Term Borrowings As of June 30, 2021 and Dec. 31, 2020, Clearwater Investments, Inc., a NSP-Wisconsin subsidiary, had 0 notesan immaterial note payable to Xcel Energy Inc. as of March 31, 2022 and Dec. 31, 2021, respectively.
5. Revenues
Revenue is classified by the type of goods/services rendered and market/customer type. NSP-Wisconsin’s operating revenues consisted of the following:
Three Months Ended
June 30, 2021
Three Months Ended
March 31, 2022
(Millions of Dollars)(Millions of Dollars)ElectricNatural GasTotal(Millions of Dollars)ElectricNatural GasTotal
Major revenue typesMajor revenue typesMajor revenue types
Revenue from contracts with customers:Revenue from contracts with customers:Revenue from contracts with customers:
ResidentialResidential$64 $15 $79 Residential$81 $42 $123 
C&IC&I108 15 123 C&I116 34 150 
OtherOtherOther— 
Total retailTotal retail174 30 204 Total retail199 76 275 
InterchangeInterchange46 46 Interchange47 — 47 
OtherOtherOther
Total revenue from contracts with customersTotal revenue from contracts with customers221 31 252 Total revenue from contracts with customers247 77 324 
Alternative revenue and otherAlternative revenue and otherAlternative revenue and other
Total revenuesTotal revenues$224 $31 $255 Total revenues$250 $78 $328 
Three Months Ended
June 30, 2020
(Millions of Dollars)ElectricNatural GasTotal
Major revenue types
Revenue from contracts with customers:
Residential$60 $10 $70 
C&I93 100 
Other
Total retail155 17 172 
Interchange41 41 
Other
Total revenue from contracts with customers196 18 214 
Alternative revenue and other
Total revenues$199 $19 $218 
Six Months Ended June 30, 2021
(Millions of Dollars)ElectricNatural GasTotal
Major revenue types
Revenue from contracts with customers:
Residential$135 $46 $181 
C&I211 39 250 
Other
Total retail349 85 434 
Interchange92 92 
Other
Total revenue from contracts with customers442 87 529 
Alternative revenue and other
Total revenues$448 $88 $536 
Six Months Ended June 30, 2020Three Months Ended
March 31, 2021
(Millions of Dollars)(Millions of Dollars)ElectricNatural GasTotal(Millions of Dollars)ElectricNatural GasTotal
Major revenue typesMajor revenue typesMajor revenue types
Revenue from contracts with customers:Revenue from contracts with customers:Revenue from contracts with customers:
ResidentialResidential$125 $35 $160 Residential$71 $31 $102 
C&IC&I194 26 220 C&I102 24 126 
OtherOtherOther— 
Total retailTotal retail322 61 383 Total retail175 55 230 
InterchangeInterchange82 82 Interchange46 — 46 
OtherOtherOther— 
Total revenue from contracts with customersTotal revenue from contracts with customers405 63 468 Total revenue from contracts with customers221 56 277 
Alternative revenue and otherAlternative revenue and otherAlternative revenue and other
Total revenuesTotal revenues$411 $64 $475 Total revenues$224 $57 $281 

6. Income Taxes
Note 7 to the consolidated financial statements included in NSP-Wisconsin’s Annual Report on Form 10-K for the year ended Dec. 31, 20202021 represents, in all material respects, the current status of other income tax matters except to the extent noted below, and are incorporated herein by reference.
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Difference between the statutory rate and ETR:effective tax rate:
Six Months Ended June 30Three Months Ended March 31
2021
2020 (a)
20222021
Federal statutory rateFederal statutory rate21.0 %21.0 %Federal statutory rate21.0 %21.0 %
State tax (net of federal tax effect)State tax (net of federal tax effect)6.2 6.2 State tax (net of federal tax effect)6.2 6.2 
Increases (decreases) in tax from:Increases (decreases) in tax from:Increases (decreases) in tax from:
Plant regulatory differences (b)(a)
Plant regulatory differences (b)(a)
(5.4)(18.4)
Plant regulatory differences (b)(a)
(3.7)(5.1)
Amortization of excess nonplant deferred taxes(12.5)
Tax credits, net of NOL & tax credit allowances(1.3)(1.7)
Tax creditsTax credits(0.7)(1.1)
Other (net)Other (net)0.2 0.9 Other (net)0.2 1.0 
Effective income tax rateEffective income tax rate20.7 %(4.5)%Effective income tax rate23.0 %22.0 %
(a)     Prior periods have been restated to conform to current year presentation.
(b) Regulatory differences for income tax primarily relate to the credit of excess deferred taxes to customers through the average rate assumption method. Income tax benefits associated with the credit of excess deferred credits are offset by corresponding revenue reductions.
Federal Audits — NSP-Wisconsin is a member of the Xcel Energy affiliated group that files a consolidated federal income tax return. Statute of limitations applicable to Xcel Energy’s consolidated federal income tax returns expire as follows:
Tax YearsExpiration
2014 - 2016January 2022
2017September 2021
Additionally, the statute of limitations related to a federal tax loss carryback claim filed in 2020 has been extended. Xcel Energy has recognized its best estimate of income tax expense that will result from a final resolution of this issue; however, the outcome and timing of a resolution is unknown.
State Audits — NSP-Wisconsin is a member of the Xcel Energy affiliated group that files consolidated state income tax returns. As of June 30, 2021, NSP-Wisconsin’s earliest open tax year subject to examination by state taxing authorities under applicable statutes of limitations is 2016. In March 2021, Wisconsin began an audit of tax years 2016 - 2019. No material adjustments have been proposed.
Unrecognized Benefits The unrecognized tax benefit balance includes permanent tax positions, which if recognized would affect the ETR. In addition, the unrecognized tax benefit balance includes temporary tax positions for which deductibility is highly certain, but for which there is uncertainty about the timing. A change in the timing of deductibility would not affect the ETR but would accelerate the payment to the taxing authority.
Unrecognized tax benefits — permanent vs. temporary:
(Millions of Dollars)June 30, 2021Dec. 31, 2020
Unrecognized tax benefit — Permanent tax positions$$
Unrecognized tax benefit — Temporary tax positions
Total unrecognized tax benefit$$
Unrecognized tax benefits were reduced by tax benefits associated with NOL and tax credit carryforwards:
(Millions of Dollars)June 30, 2021Dec. 31, 2020
NOL and tax credit carryforwards$(2)$(2)
As the IRS audits resume and state audit progresses, it is reasonably possible that the amount of unrecognized tax benefit could decrease up to approximately $1 million in the next 12 months.
Payables for interest related to unrecognized tax benefits were not material and 0 amounts were accrued for penalties related to unrecognized tax benefits as of June 30, 2021 or Dec. 31, 2020.
7. Fair Value of Financial Assets and Liabilities
Fair Value Measurements
Accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance.
Level 1 — Quoted prices are available in active markets for identical assets or liabilities as of the reporting date. The types of assets and liabilities included in Level 1 are highly liquid and actively traded instruments with quoted prices.
Level 2 — Pricing inputs are other than quoted prices in active markets, but are either directly or indirectly observable as of the reporting date. The types of assets and liabilities included in Level 2 are typically either comparable to actively traded securities or contracts, or priced with models using highly observable inputs.
Level 3 — Significant inputs to pricing have little or no observability as of the reporting date. The types of assets and liabilities included in Level 3 are those valued with models requiring significant management judgment or estimation.
Specific valuation methods include:
Cash equivalents — The fair values of cash equivalents are generally based on cost plus accrued interest; money market funds are measured using quoted net asset value.
Interest rate derivatives The fair values of interest rate derivatives are based on broker quotes that utilize current market interest rate forecasts.
Commodity derivatives The methods used to measure the fair value of commodity derivative forwards and options utilize forward prices and volatilities, as well as pricing adjustments for specific delivery locations, and are generally assigned a Level 2 classification.
When contractual settlements relate to inactive delivery locations or extend to periods beyond those readily observable on active exchanges or quoted by brokers, the significance of the use of less observable inputs on a valuation is evaluated and may result in Level 3 classification.
Derivative Instruments Fair Value Measurements
NSP-Wisconsin enters into derivative instruments, including forward contracts, futures, swaps and options, for trading purposes and to manage risk in connection with changes in interest rates and utility commodity prices.
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Interest Rate Derivatives NSP-Wisconsin may enter into various instruments that effectively fix the yield or price on a specified benchmark interest rate for an anticipated debt issuance for a specific period. These derivative instruments are generally designated as cash flow hedges for accounting purposes. As of June 30, 2021March 31, 2022 and Dec. 31, 2020, there were 02021, NSP-Wisconsin had no unsettled interest rate derivatives designated as cash flow hedges.derivatives.
Commodity Derivatives NSP-Wisconsin may enter into derivative instruments to manage variability of future cash flows from changes in commodity prices in its electric and natural gas operations, as well as for trading purposes. This could include the purchase or sale of natural gas to generate electric energy and natural gas for resale. At March 31, 2022 and Dec. 31, 2021, NSP-Wisconsin had no gross notional amounts of commodity options.
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Consideration of Credit Risk and Concentrations — NSP-Wisconsin continuously monitors the creditworthiness of counterparties to its interest rate derivatives and commodity derivative contracts, prior to settlement, and assesses each counterparty’s ability to perform on the transactions set forth in the contracts. Impact of credit risk was immaterial to the fair value of unsettled commodity derivatives presented on the consolidated balance sheets.
Impact of Derivative Activities on IncomeChanges in the fair value of natural gas commodity derivatives resulted in 0immaterial net gains or losses and $1 million in losses for both the three and six months ended June 30,March 31, 2022 and 2021, respectively, which were recognized as regulatory assets and liabilities. There were immaterial net losses for the three and six months ended June 30, 2020. The classification as a regulatory asset or liability is based on commission approved regulatory recovery mechanisms.
During the three months ended June 30, 2021 and 2020,March 31, 2022 there were 0 settlement gains or losses onimmaterial natural gas commodity derivatives. During the six months ended June 30,derivatives settlement losses and during 2021, and 2020, there were $1 million of settlement losses respectively, which were recognized subject to purchased natural gas cost recovery mechanisms, which result in reclassifications of derivative settlement gains and losses out of income to a regulatory asset or liability, as appropriate.
NSP-Wisconsin had 0no derivative instruments designated as fair value hedges during the three and six months ended June 30, 2021March 31, 2022 and 2020, respectively.2021.
Recurring Fair Value Measurements As of June 30, 2021, there were immaterialNSP-Wisconsin had no derivative assets measured at fair value on a recurring basis. At Dec. 31, 2020, NSP-Wisconsin's derivative assetsor liabilities measured at fair value on a recurring basis were as follows:at March 31, 2022. NSP-Wisconsin's derivative assets and liabilities measured at fair value on a recurring basis:
Dec. 31, 2020Dec. 31, 2021
Fair ValueFair Value Total
Netting (a)
Total (b)
Fair ValueFair Value Total
Netting (a)
Total (b)
(Millions of Dollars)(Millions of Dollars)Level 1Level 2Level 3(Millions of Dollars)Level 1Level 2Level 3
Current derivative assetsCurrent derivative assetsCurrent derivative assets
Natural gas commodityNatural gas commodity$$$$$$Natural gas commodity$— $$— $$— $
Dec. 31, 2021
Fair ValueFair Value Total
Netting (a)
Total (c)
(Millions of Dollars)Level 1Level 2Level 3
Current derivative liabilities
Natural gas commodity$— $$— $$— $
(a)    NSP-Wisconsin nets derivative instruments and related collateral on its consolidated balance sheets when supported by a legally enforceable master netting agreement, and all derivative instruments and related collateral amounts were subject to master netting agreements at Dec. 31, 2020.2021. The counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements.
(b)    Included in prepayments and other current assets balance of $7 million at Dec. 31, 20202021 on the consolidated balance sheets.
(c)    Included in other current liabilities at Dec. 31, 2021 on the consolidated balance sheets.
Fair Value of Long-Term Debt
Other financial instruments for which the carrying amount did not equal fair value:
June 30, 2021Dec. 31, 2020March 31, 2022Dec. 31, 2021
(Millions of Dollars)(Millions of Dollars)Carrying AmountFair ValueCarrying AmountFair Value(Millions of Dollars)Carrying AmountFair ValueCarrying AmountFair Value
Long-term debt, including current portionLong-term debt, including current portion$907 $1,067 $906 $1,124 Long-term debt, including current portion$987 $1,043 $987 $1,143 
Fair value of NSP-Wisconsin’s long-term debt is estimated based on recent trades and observable spreads from benchmark interest rates for similar securities. Fair value estimates are based on information available to management as of June 30, 2021March 31, 2022 and Dec. 31, 20202021 and given the observability of the inputs, fair values presented for long-term debt were assigned as Level 2.
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8. Benefit Plans and Other Postretirement Benefits
Components of Net Periodic Benefit Cost (Credit)
Three Months Ended June 30Three Months Ended March 31
2021202020222021
(Millions of Dollars)(Millions of Dollars)Pension Benefits(Millions of Dollars)Pension Benefits
Service costService cost$$Service cost$$
Interest cost (a)
Interest cost (a)
Interest cost (a)
Expected return on plan assets (a)
Expected return on plan assets (a)
(2)(2)
Expected return on plan assets (a)
(2)(2)
Amortization of net loss (a)
Amortization of net loss (a)
Amortization of net loss (a)
Net periodic benefit costNet periodic benefit cost$$Net periodic benefit cost$$
Effects of regulationEffects of regulationEffects of regulation— — 
Net benefit cost recognized for financial reportingNet benefit cost recognized for financial reporting$$Net benefit cost recognized for financial reporting$$
Six Months Ended June 30
20212020
(Millions of Dollars)Pension Benefits
Service cost$$
Interest cost (a)
Expected return on plan assets (a)
(4)(4)
Amortization of net loss (a)
Net periodic benefit cost$$
Effects of regulation
Net benefit cost recognized for financial reporting$$
(a)     The components of net periodic cost other than the service cost component are included in the line item “Other expense, net” in the consolidated statements of income or capitalized on the consolidated balance sheets as a regulatory asset.
In January 2021,2022, contributions of $125$50 million were made across 4 of Xcel Energy’s pension plans, of which $5$1 million was attributable to NSP-Wisconsin. Xcel Energy does not expect additional pension contributions during 2021.2022.
9. Commitments and Contingencies
The following includes commitments, contingencies and unresolved contingencies that are material to NSP-Wisconsin’s financial position.
Legal
NSP-Wisconsin is involved in various litigation matters in the ordinary course of business. The assessment of whether a loss is probable or is a reasonable possibility, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. Management maintains accruals for losses probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of a reasonably possible loss in certain situations, including but not limited to when (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories.
In such cases, there is considerable uncertainty regarding the timing or ultimate resolution, of such matters, including a possible eventual loss. For current proceedings not specifically reported herein, management does not anticipate that the ultimate liabilities, if any, would have a material effect on NSP-Wisconsin’s consolidated financial statements. Legal fees are generally expensed as incurred.
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Gas Trading Litigation e prime is a wholly owned subsidiary of Xcel Energy. e prime was in the business of natural gas trading and marketing but has not engaged in natural gas trading or marketing activities since 2003. Multiple lawsuits involving multiple plaintiffs seeking monetary damages were commenced against e prime and its affiliates, including Xcel Energy, between 2003 and 2009 alleging fraud and anticompetitive activities in conspiring to restrain the trade of natural gas and manipulate natural gas prices. Cases were all consolidated in the U.S. District Court in Nevada.
Two cases remain
NaN case remains active which include an MDLincludes a multi-district litigation matter consisting of a Colorado purported class (Breckenridge) and a Wisconsin purported class (Arandell Corp.).
Breckenridge/Colorado — In February 2019, the MDL panel remanded Breckenridge back to the U.S. District Court in Colorado. Settlement of approximately $3 million was reached in February 2021. The parties have sought and are awaiting court approval of the settlement. A hearing was held on July 22, 2021. A decision is anticipated in Q3.
Arandell Corp.The trial has been vacated and will be rescheduled after the court rules on the pending motions for reconsideration and for class certification. Xcel Energy has concluded that a loss is remote for the remaining lawsuit.
Rate Matters
NSP-Wisconsin is involved in various regulatory proceedings arising in the ordinary course of business. Until resolution, typically in the form of a rate order, uncertainties may exist regarding the ultimate rate treatment for certain activities and transactions. Amounts have been recognized for probable and reasonably estimable losses that may result. Unless otherwise disclosed, any reasonably possible range of loss in excess of any recognized amount is not expected to have a material effect on the financial statements.
MISO ROE Complaints — In November 2013 and February 2015, customer groups filed two ROE complaints against MISO TOs, which includes NSP-Minnesota and NSP-Wisconsin. The first complaint requested a reduction in base ROE transmission formula rates from 12.38% to 9.15% for the time period of Nov. 12, 2013 to Feb. 11, 2015, and removal of ROE adders (including those for RTORegional Transmission Organization membership). The second complaint requested, for a subsequent time period, a base ROE reduction from 12.38% to 8.67%.
In September 2016, the FERC issued an order (Opinion No. 551) granting a 10.32% base ROE effective for the first complaint period of Nov. 12, 2013 to Feb. 11, 2015 and subsequent to the date of the order. The D.C Circuit subsequently vacated and remanded Opinion No. 551.
In November 2019, the FERC issued an order (Opinion No. 569), which set the MISO base ROE at 9.88%, effective Sept. 28, 2016 and for the first complaint period. The FERC also dismissed the second complaint. In December 2019, MISO TOs filed a request for rehearing regarding the newhas subsequently issued various related orders (including Opinion Nos. 569, 569A and 569B) related to ROE methodology announced in Opinion No. 569. Customers also filed requests for rehearing claiming, among other points, that the FERC erred by dismissing the second complaint without refunds.
In May 2020, the FERC issued an order (Opinion No. 569-A) which granted rehearing in part to Opinion 569methodology/calculations and further refined the FERC’s ROE methodology, most significantly to incorporate the risk premium model (in addition to the discounted cash flow and capital asset pricing models), resulting in a new base ROE of 10.02%, effective Sept. 28, 2016 and for the first complaint period. The FERC also affirmed its decision in Opinion No. 569 to dismiss the second complaint.
In November 2020, the FERC issued an order (Opinion No. 569-B) in response to rehearing requests. The FERC corrected certain inputs to its ROE calculation model, did not change the ROE effective Sept. 28, 2016, and for the first MISO complaint period and upheld its decision to deny refunds for the second complaint period. timing. NSP-Minnesota has recognized a liability for its best estimate of final refunds to customers. Each 10 basis point reduction in ROEcustomers for applicable complaint periods on behalf of the first complaint period, second complaint period,Northern States Power system (NSP-Minnesota and subsequent period relative to amounts accrued would reduce Xcel Energy’s net income by $1 million, $1 million, and $2 million, respectively.NSP-Wisconsin).
The MISO TOs and various other parties have filed petitions for review of Opinion Nos. 569, 569-A and 569-Bthe FERC’s most recent applicable opinions at the D.C. Circuit with initial briefs filedCircuit. Oral arguments were held in Marchlate 2021 and final briefsa decision is expected in August 2021.
FERC NOPR on ROE Incentive Adders — In April 2021, the FERC issued a NOPR proposing to limit collection of ROE incentive adders for RTO membership to the first three years after an entity begins participation in an RTO. If adopted as a final rule, following a comment period expected to be complete by the end of 2021 or 2022, NSP-Wisconsin would prospectively discontinue charging their current 0.5% ROE incentive adders. Amounts related to a discontinuancethe third quarter of the adder would ultimately be offset by an increase in retail rates, following future rate cases.2022.
Environmental
MGP, Landfill and Disposal Sites
NSP-Wisconsin is currently investigating, remediating or performing post-closure actions at 24 MGP, landfill or other disposal sites across its service territories.
NSP-Wisconsin has recognized its best estimate of costs/liabilities that will result from final resolution of these issues, however, the outcome and timing is unknown. In addition, there may be insurance recovery and/or recovery from other potentially responsible parties, offsetting a portion of costs incurred.
Environmental Requirements — Water and Waste
Federal Clean Water Act Section 316(b) — The federal Clean Water Act requires the EPA to regulate cooling water intake structures to assure that these structures reflect the best technology available for minimizing impingement and entrainment of aquatic species. NSP-Wisconsin estimates the likely future cost for complying with impingement requirements is approximately $4 million, to be incurred between 2022 and 2028, while the total cost of entrainment improvements is anticipated to be immaterial. NSP-Wisconsin believes 2 plants could be required to make improvements to reduce impingement and entrainment. The exact total cost of the impingement and entrainment improvements is uncertain, but could be up to $4 million. NSP-Wisconsin anticipates these costs will be fully recoverable through regulatory mechanisms.
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10. Segment Information
NSP-Wisconsin evaluates performance based on profit or loss generated from the product or service provided. These segments are managed separately because the revenue streams are dependent upon regulated rate recovery, which is separately determined for each segment.
NSP-Wisconsin has the following reportable segments:
Regulated Electric — The regulated electric utility segment generates electricity, which is transmitted and distributed in Wisconsin and Michigan.
Regulated Natural Gas — The regulated natural gas utility segment purchases, transports, stores and distributes natural gas in portions of Wisconsin and Michigan.
Asset and capital expenditure information is not provided for NSP-Wisconsin's reportable segments. As an integrated electric and natural gas utility, NSP-Wisconsin operates significant assets that are not dedicated to a specific business segment. Reporting assets and capital expenditures by business segment would require arbitrary and potentially misleading allocations, which may not necessarily reflect the assets that would be required for the operation of the business segments on a stand-alone basis.
Certain costs, such as common depreciation, common O&M expenses and interest expense are allocated based on cost causation allocators across each segment. In addition, a general allocator is used for certain general and administrative expenses, including office supplies, rent, property insurance and general advertising.
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NSP-Wisconsin's segment information:
Three Months Ended June 30Three Months Ended March 31
(Millions of Dollars)(Millions of Dollars)20212020(Millions of Dollars)20222021
Regulated ElectricRegulated ElectricRegulated Electric
Total revenues (a)
Total revenues (a)
$224 $199 
Total revenues (a)
$250 $224 
Net incomeNet income16 16 Net income32 24 
Regulated Natural GasRegulated Natural GasRegulated Natural Gas
Total revenuesTotal revenues$31 $19  Total revenues$78 $57 
Net loss(2)(3)
All Other
Total revenues$$
Net loss(1)
Net incomeNet income15 
Consolidated TotalConsolidated TotalConsolidated Total
Total revenues (a)
Total revenues (a)
$255 $218 
Total revenues (a)
$328 $281 
Net incomeNet income14 12 Net income47 32 
(a)Total revenues include $46$47 million and $41$46 million of affiliate electric revenue for the three months ended June 30,March 31, 2022 and 2021, and 2020, respectively.
Six Months Ended June 30
(Millions of Dollars)20212020
Regulated Electric
Total revenues (a)
$448 $411 
Net income40 41 
Regulated Natural Gas
Total revenues$88 $64 
Net income
All Other
Total revenues$$
Net loss(1)
Consolidated Total
Total revenues (a)
$536 $475 
Net income46 46 
(a)Total revenues include $92 million and $82 million of affiliate electric revenue for the six months ended June 30, 2021 and 2020, respectively.

ITEM 2 — MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Discussion of financial condition and liquidity for NSP-Wisconsin is omitted per conditions set forth in General Instructions H(1)(a) and (b) of Form 10-Q for wholly owned subsidiaries. It is replaced with management’s narrative analysis of the results of operations set forth in General Instruction H(2)(a) of Form 10-Q for wholly owned subsidiaries (reduced disclosure format).
Non-GAAP Financial Measures
The following discussion includes financial information prepared in accordance with GAAP, as well as certain non-GAAP financial measures such as electric margin and natural gas margin.ongoing earnings. Generally, a non-GAAP financial measure is a measure of a company’s financial performance, financial position or cash flows that excludes (or includes)adjusts amounts that are adjusted from measures calculated and presented in accordance with GAAP.
NSP-Wisconsin’s management uses non-GAAP measures for financial planning and analysis, for reporting of results to the Board of Directors, in determining performance-based compensation and communicating its earnings outlook to analysts and investors. Non-GAAP financial measures are intended to supplement investors’ understanding of our performance and should not be considered alternatives for financial measures presented in accordance with GAAP. These measures are discussed in more detail below and may not be comparable to other companies’ similarly titled non-GAAP financial measures.
ElectricEarnings Adjusted for Certain Items (Ongoing Earnings)
Ongoing earnings reflect adjustments to GAAP earnings (net income) for certain items
We use this non-GAAP financial measure to evaluate and Natural Gas Margins
Electric marginprovide details of NSP-Wisconsin’s core earnings and underlying performance. We believe this measurement is presented as electric revenues less electric fueluseful to investors to evaluate the actual and purchased power expenses. Natural gas margin is presented as natural gas revenues lessprojected financial performance and contribution of NSP-Wisconsin. For the cost of natural gas soldthree months ended March 31, 2022 and transported. Expenses incurred for electric fuel2021, there were no such adjustments to GAAP earnings and purchased power and the cost of natural gas are generally recovered through various regulatory recovery mechanisms. As a result, changes in these expenses are generally offset in operating revenues.
Management believes electric and natural gas margins provide the most meaningful basis for evaluating our operations because they exclude the revenue impact of fluctuations in these expenses. These margins can be reconciled to operating income, atherefore GAAP measure, by including other operating revenues, O&M expenses, conservation, depreciation and amortization and taxes (other than income taxes).earnings equal ongoing earnings.
Results of Operations
NSP-Wisconsin’s year-to-date net income was flat$47 million, compared with the same period in 2020 ($46$32 million for both the six months ended June 30, 2021prior year, reflecting the impact of regulatory rate outcomes and 2020).higher sales attributable to weather, partially offset by higher O&M expenses.
Electric Margin
Electric production expenses tend to vary with the quantity of electricity sold and changes in the unit costs of fuel and purchased power. Themargin is presented as electric revenues less electric fuel and purchased power costexpenses. Expenses incurred for electric fuel and purchased power are generally recovered through various regulatory recovery mechanism of the Wisconsin jurisdiction may not allow for complete recovery of all expenses and, therefore,mechanisms. As a result, changes in fuel or purchased power costs can impact earnings.these expenses are generally offset in operating revenues.
Electric revenues and margin:fuel and purchased power expenses are impacted by fluctuations in the price of natural gas, coal and uranium. However, these price fluctuations generally have minimal impact on earnings impact due to fuel recovery mechanisms. In addition, electric customers receive a credit for production tax credits generated, which reduce electric revenue and income taxes.
Six Months Ended June 30
(Millions of Dollars)20212020
Electric revenues$448 $411 
Electric fuel and purchased power(216)(192)
Electric margin$232 $219 
Electric Revenues, Fuel and Purchased Power and Electric Margin
Changes in electric margin:
Three Months Ended March 31
(Millions of Dollars)20222021
Electric revenues$250 $224 
Electric fuel and purchased power(112)(105)
Electric margin$138 $119 
Changes:
(Millions of Dollars)SixThree Months Ended June 30,March 31, 2022 vs. 2021 vs. 2020
Regulatory rate outcomes$12
Sales and demand(a)
4 
Estimated impact of weather
Sales and demand (a)
43 
Interchange agreement billings with NSP-Minnesota(6)
Other (net)(1)
Total increase in electric margin$1319 
(a) Sales declineincrease excludes weather impact.
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Natural Gas Margin
TotalNatural gas margin is presented as natural gas revenues less the cost of natural gas sold and transported. Expenses incurred for the cost of natural gas sold are generally recovered through various regulatory recovery mechanisms. As a result, changes in these expenses are generally offset in operating revenues.
Natural gas expense varies with changing sales requirements and the cost of natural gas. However, fluctuations in the cost of natural gas generally have minimal earnings impact on natural gas margin due to natural gas cost recovery mechanisms.
Natural gas revenuesGas Revenues, Cost of Natural Gas Sold and margin:Transported and Natural Gas Margin
Six Months Ended June 30Three Months Ended March 31
(Millions of Dollars)(Millions of Dollars)20212020(Millions of Dollars)20222021
Natural gas revenuesNatural gas revenues$88 $64 Natural gas revenues$78 $57 
Cost of natural gas sold and transportedCost of natural gas sold and transported(51)(28)Cost of natural gas sold and transported(45)(31)
Natural gas marginNatural gas margin$37 $36 Natural gas margin$33 $26 
Changes in natural gas margin:Changes:
(Millions of Dollars)SixThree Months Ended June 30,March 31, 2022 vs. 2021 vs. 2020
Regulatory rate outcomes (Wisconsin)$
Estimated impact of weather
Other (net)(1)
Total increase$
Sales growth
Total increase in natural gas margin$
Non-Fuel Operating Expenses and Other Items
Depreciation and AmortizationO&M Expenses — — Depreciation and amortization expense decreasedO&M costs increased $4 million, or 5.2%, year-to-date. The decrease isprimarily due to lower amortizationtiming of environmental regulatory assets,distribution maintenance, storm costs, additional investments in technology and customer programs and interchange expenses, partially offset by normal system expansion and deferred tax liability amortization.a reduction in benefit costs.
Income Taxes Income tax expense increased $14$5 million for the first six months of 2021.quarter. The increase was primarily driven by a decrease in plant regulatory differences, lower non-plant accumulated deferred income tax amortization and higher pretax earnings in 2021.2022.
See Note 6 to the consolidated financial statements for further information.
Other
Winter Storm Uri
In February 2021, the central portion of the United States experienced a major winter storm (Winter Storm Uri). Extreme cold temperatures impacted certain operational assets as well as the availability of renewable generation across the region. The cold weather also affected the country’s supply and demand for natural gas. These factors contributed to extremely high market prices for natural gas and electricity.
As a result of the extremely high market prices, NSP-Wisconsin incurred net natural gas, fuel and purchased energy costs of approximately $45 million (largely deferred as regulatory assets) in the first quarter. Certain energy transactions are subject to final/settlement calculation adjustments, including the impacts of credit losses shared among market participants. Such adjustments are not expected to be material to our results of operations, financial condition or cash flows.
Regulatory Overview — NSP-Wisconsin has natural gas, fuel and purchased energy mechanisms in each jurisdiction for recovering incurred costs. However, February cost increases were deferred for future recovery with recovery proposed over a period of up to ten months to mitigate the impact to customer bills. Additionally, NSP-Wisconsin is not requesting recovery of financing costs in order to further limit the impact to our customers.

Proceedings initiated:
JurisdictionRegulatory Status
WisconsinIn March, the PSCW approved NSP-Wisconsin's proposal to recover $45 million of natural gas costs incurred during Storm Uri over nine months through December 2021 with no financing charge.
MichiganIn May, the Michigan Public Service Commission approved recovery of $2 million in natural gas costs over 10 months with no financing charge.
Supply Chain and Capital Expenditures
NSP-Wisconsin’s ability to meet customer energy requirements, respond to storm-related disruptions and execute our capital expenditure program are dependent on maintaining an efficient supply chain. Overall, as a result of COVID-19, manufacturing processes have experienced disruptions related to scarcity of raw materials and interruptions in production and shipping. These disruptions have been further exacerbated by inflationary pressures, storms and labor shortages. The Company continues to monitor the availability of materials and seek alternative suppliers as necessary.
Public Utility Regulation and Other
The FERC and various state and local regulatory commissions regulate NSP-Wisconsin. The electric and natural gas rates charged to customers of NSP-Wisconsin are approved by the FERC or the regulatory commissions in the states in which it operates.
Rates are designed to recover plant investment, operating costs and an allowed return on investment. NSP-Wisconsin requests changes in utility rates through commission filings.
Changes in operating costs can affect NSP-Wisconsin’s financial results, depending on the timing of rate case filings and implementation of final rates. Other factors affecting rate filings are new investments, sales, conservation and demand side management efforts, and the cost of capital. In addition, the regulatory commissions authorize the ROE, capital structure and depreciation rates in rate proceedings. Decisions by these regulators can significantly impact NSP-Wisconsin’s results of operations.
Except to the extent noted below, the circumstances set forth in Public Utility Regulation included in Item 7 of NSP-Wisconsin’s Annual Report on Form 10-K for the year ended Dec. 31, 2020 and in Item 2 of NSP-Wisconsin's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2021 appropriately represent, in all material respects, the current status of public utility regulation and are incorporated herein by reference.
Recently Concluded Regulatory Proceedings
NSP-Wisconsin Solar Proposal Michigan Electric Rate Case In March 2022, the Michigan Public Service Commission approved an electric rate case settlement granting NSP-Wisconsin an electric revenue increase of $1.6 million in 2022, based on a ROE of 9.7% and an equity ratio of 52.5%. New rates were effective April 1, 2022.
Other
Supply Chain
Xcel Energy’s ability to meet customer energy requirements, respond to storm-related disruptions and execute our capital expenditure program are dependent on maintaining an efficient supply chain. Manufacturing processes have experienced disruptions related to scarcity of certain raw materials and interruptions in production and shipping. These disruptions have been further exacerbated by inflationary pressures, labor shortages and the impact of international conflicts/issues. Xcel Energy continues to monitor the availability of materials and has sought to mitigate impacts by seeking alternative suppliers as necessary.
Solar Resources
In April 2022, the U.S. Department of Commerce initiated an anti-circumvention investigation that would subject CSPV solar panels and cells imported from Malaysia, Vietnam, Thailand, and Cambodia with potential incremental tariffs ranging from 50% to 250%. These countries account for more than 80% of CSPV panel imports.
The uncertainty of the investigation and the adverse impact on potential tariffs has resulted in the cancellation or delay of certain domestic solar projects.
In June 2021, the PSCWPublic Service Commission of Wisconsin approved NSP-Wisconsin’s request to purchase the 74 MW Western Mustang build-own-transfer solar project, a 74 megawatt facility that would be built by a developer for approximately $100 million. The project iswas originally scheduled to go into service in 2023.
NSP-Wisconsin Electric and Natural Gas Settlement — In July 2021, NSP-Wisconsin filed an application with the PSCW seeking approval of2022. As a rate case settlement with various intervenors for 2022-2023.
The settlement agreement increases electric rates by $35 million (4.9%) for 2022 and an incremental $18 million increase (2.5%) for 2023. For the natural gas utility, rates increase by $10 million (8.4%) for 2022 and an incremental $3 million (2.3%) increase for 2023.
Key elementsresult of the settlement include:
disruption of the solar supply chain, the developer has indicated difficulty delivering the project at the contract price and scheduled in-service date. Negotiations on a potential solution are onROE of 9.80% for 2022 and 10.00% for 2023.-going.
Equity ratio of 52.5% for both 2022 and 2023.
Returning $9 million in various net regulatory liabilities to offset customer impacts in 2023.
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Deferring certain pension and other post-employment benefit expense in 2021 through 2023.
Addressing COVID-19 deferral recovery in the next rate case proceeding.
Deferring potential changes in tax expenses due to changes in federal or state tax law in 2021 through 2023.
Incorporating an earnings sharing mechanism for 2022 and 2023.
A PSCW decision is anticipated in the fourth quarter of 2021.
Environmental
Affordable Clean Energy
In July 2019, the EPA adopted the Affordable Clean Energy rule, which requires states to develop plans by 2022 for greenhouse gas reductions from coal-fired power plants. In January 2021, the U.S. Court of Appeals for the D.C. Circuit issued a decision vacating and remanding the Affordable Clean Energy rule. That decision if not successfully appealed or reconsidered, would allow the EPA to proceed with alternate regulation of coal-fired power plants. However, the Court of Appeals decision has been appealed to the U.S Supreme Court, where the Court heard argument in February and is expected to rule by June on the nature and extent of the EPA’s greenhouse gas regulatory authority. If theany new rules require additional investment, NSP-Wisconsin believes based on prior state commission practices, that the cost of these initiatives or replacement generation would be recoverable through rates.
Emerging Regulation
New regulations and legislation are being considered to regulate PFAS in drinking water, water discharges, commercial products, wastes, and other areas. PFAS are man-made chemicals found in many consumer products that can persist and accumulate in the environment. These chemicals have received heightened attention by environmental regulators. Increased regulation of PFAS and other emerging contaminants at the federal,rates based on prior state and local level could have a potential adverse effect on our operations but at this time, it is uncertain what impact, if any, there will be on our results of operations, financial condition or cash flows. NSP-Wisconsin will continue to monitor these regulatory developments and their potential impact on its operationscommission practices.

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ITEM 4 — CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
NSP-Wisconsin maintains a set of disclosure controls and procedures designed to ensure that information required to be disclosed in reports that it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms.
In addition, the disclosure controls and procedures ensure that information required to be disclosed is accumulated and communicated to management, including the CEO and CFO, allowing timely decisions regarding required disclosure.
As of June 30, 2021,March 31, 2022, based on an evaluation carried out under the supervision and with the participation of NSP-Wisconsin’s management, including the CEO and CFO, of the effectiveness of its disclosure controls and procedures, the CEO and CFO have concluded that NSP-Wisconsin’s disclosure controls and procedures were effective.
Internal Control Over Financial Reporting
No changes in NSP-Wisconsin’s internal control over financial reporting occurred during the most recent fiscal quarter that materially affected, or are reasonably likely to materially affect, NSP-Wisconsin’s internal control over financial reporting.
PART II — OTHER INFORMATION
ITEM 1 — LEGAL PROCEEDINGS
NSP-Wisconsin is involved in various litigation matters in the ordinary course of business. The assessment of whether a loss is probable or is a reasonable possibility, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. Management maintains accruals for losses probable of being incurred and subject to reasonable estimation.
Management is sometimes unable to estimate an amount or range of a reasonably possible loss in certain situations, including but not limited to, when (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories.
Intheories.In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss.
For current proceedings not specifically reported herein, management does not anticipate that the ultimate liabilities, if any, would have a material effect on NSP-Wisconsin’s consolidated financial statements. Legal fees are generally expensed as incurred.
See Note 9 to the consolidated financial statements and Part I Item 2 for further information.
ITEM 1A — RISK FACTORS
NSP-Wisconsin's risk factors are documented in Item 1A of Part I of its Annual Report on Form 10-K for the year ended Dec. 31, 2020,2021, which is incorporated herein by reference. There have been no material changes from the risk factors previously disclosed in the Form 10-K.
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ITEM 6 — EXHIBITS
* Indicates incorporation by reference
Exhibit NumberDescriptionReport or Registration StatementExhibit Reference
NSP-Wisconsin Form S-4 dated Jan. 21, 20043.01
NSP-Wisconsin Form 10-K for the year ended Dec. 31, 20183.02
101.INSInline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCHInline XBRL Schema
101.CALInline XBRL Calculation
101.DEFInline XBRL Definition
101.LABInline XBRL Label
101.PREInline XBRL Presentation
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
Northern States Power Company (a Wisconsin corporation)
July 29, 20214/28/2022By:/s/ JEFFREY S. SAVAGE
Jeffrey S. Savage
Senior Vice President, Controller
(Principal Accounting Officer)
/s/ BRIAN J. VAN ABEL
Brian J. Van Abel
Executive Vice President, Chief Financial Officer and Director
(Duly Authorized Officer and Principal Financial Officer)
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