As Filedfiled with the Securities and Exchange Commission on February 24, 2017.

REGISTRATION NO.June 29, 2020

Registration No. 333-  215530


 

UNITED STATES


SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

AMENDMENT NO. 2
TO

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

FUELCELL ENERGY, INC.

(Exact Namename of Registrantregistrant as Specifiedspecified in Its Charter)


Delaware
(State or Other Jurisdiction of Incorporation or Organization)
06-0853042
(I.R.S. Employer Identification Number)
its charter)

Delaware
(State or other jurisdiction of incorporation
or organization)
06-0853042
(I.R.S. Employer
Identification Number)

3 Great Pasture Road


Danbury, Connecticut 06813
06810
(203) 825-6000

(Address, Including Zip Code,including zip code, and Telephone Number, Including Area Code,telephone number, including area code, of Registrant’s Principal Executive Offices)

Arthur A. Bottone
registrant’s principal executive offices)

Jason Few
President and Chief Executive Officer


FuelCell Energy, Inc.

3 Great Pasture Road

Danbury, Connecticut 06813
06810
(203) 825-6000

(Name, Address, Including Zip Code,address, including zip code, and Telephone Number, Including Area Code,telephone number, including area code, of Agentagent for Service)

service)

Copies of All Communications to:

Peter J. Schaeffer,

Paul D. Broude, Esq.

Patterson Belknap Webb

Megan A. Odroniec, Esq.
Foley & TylerLardner LLP

1133
111 Huntington Avenue of the Americas
New York, NY 10036-6710
(212) 336-2000

Boston, Massachusetts 02199
Telephone: (617) 342-4000

Richard A. Krantz,
Jennifer D. Arasimowicz, Esq.
Robinson & Cole LLP
666 Third Avenue
New York, NY 10017
(212) 451-2900

Executive Vice President, General Counsel
and Corporate Secretary
FuelCell Energy, Inc.
3 Great Pasture Road
Danbury, Connecticut 06810
Telephone: (203) 825-6000

Approximate Datedate of Commencementcommencement of Proposed Saleproposed sale to the Publicpublic: From time to time after the effective date of this registration statement.

Registration Statement becomes effective.

If the only securities being registered on this formForm are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ¨

If any of the securities being registered on this formForm are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. x.

If this formForm is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

If this formForm is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

If this formForm is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ¨

If this formForm is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer¨ Accelerated filer¨ 
Non-accelerated filerxSmaller reporting company
   Emerging growth company¨ 
Non-accelerated filer
¨  (Do not check if a smaller reporting company)
Smaller reporting 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 7(a)(2)(B) of the Securities Act. ¨

 

CALCULATION OF REGISTRATION FEE

 
Title of Each Class of
Securities to Be Registered
 
Amount
To Be
Registered(1)
 
Proposed
Maximum
Offering Price
Per Unit(1)(2)
 
Proposed
Maximum
Aggregate
Offering Price(2)(3)
 
Amount of
Registration Fee(4)
Debt Securities(5)        
Preferred Stock, $0.01 par value(6)        
Common Stock, $0.0001 par value(7)        
Warrants(8)        
Units        
TOTAL  $150,000,000  100%  $150,000,000 $17,385
(1)There are being registered under this Registration Statement such indeterminate number of shares of common stock and preferred stock of the Registrant, and such indeterminate principal amount of debt securities, warrants and units of the Registrant, as shall have an aggregate initial offering price not to exceed $150,000,000. Any offering of debt securities by the Registrant denominated other than in U.S. dollars will be treated as the equivalent of U.S. dollars based on the exchange rate applicable to the purchase of such debt securities at the time of initial offering. If any debt securities are issued at an original issue discount by the Registrant, then the securities registered shall include such additional debt securities as may be necessary such that the aggregate initial public offering price of all securities issued pursuant to this Registration Statement will equal $150,000,000. Any securities registered under this Registration Statement may be sold separately or as units with other securities registered under this Registration Statement. The proposed maximum initial offering price per unit will be determined from time to time by the Registrant in connection with, and at the time of, the issuance by the Registrant of the securities registered under this Registration Statement.
(2)The proposed maximum per unit and aggregate offering price per class of security will be determined from time to time by the registrant in connection with the issuance of the securities registered hereunder and is not specified with respect to each class of securities to be registered by the registrant pursuant to General Instruction II.D to Form S-3.
(3)Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(o) under the Securities Act of 1933. No separate consideration will be received for any securities registered hereunder that are issued upon exercise, conversion or exchange of debt securities, preferred stock or warrants registered hereunder.
(4)Previously paid.
(5)Including such indeterminate principal amount of debt securities as may from time to time be issued upon exercise, conversion or exchange of any securities registered hereunder, to the extent any such securities are, by their terms, convertible into or exercisable for debt securities.
(6)Including such indeterminate number of shares of preferred stock as may from time to time be issued upon exercise, conversion or exchange of any securities registered hereunder, to the extent any such securities are, by their terms, convertible into or exercisable for preferred stock.
(7)Including such indeterminate number of shares of common stock as may from time to time be issued upon exercise, conversion or exchange of any securities registered hereunder, to the extent any such securities are, by their terms, convertible into or exercisable for common stock.
(8)Including such indeterminate number of warrants as may from time to time be issued upon exercise, conversion or exchange of any securities registered hereunder, to the extent any such securities are, by their terms, convertible into or exercisable for warrants.

Title of Each Class of Securities to be RegisteredAmount to be
Registered
(1)
Proposed Maximum
Offering Price Per
Share
Proposed Maximum
Aggregate Offering
Price
Amount of
Registration Fee
Common Stock, par value $0.0001 per share, underlying Warrants8,000,000$2.30(2)$18,400,000$2,389
Common Stock, par value $0.0001 per share, issued upon cashless exercise of Warrants9,396,320$2.30(3)$21,611,536$2,806
Total17,396,320 $40,011,536$5,195

(1) Pursuant to Rule 416 under the Securities Act of 1933, as amended (the “Securities Act”), the number of shares of common stock being registered hereunder includes such additional number of shares of common stock as may be issuable as a result of stock splits, stock dividends or similar transactions.  The shares of common stock are being registered for resale by the selling stockholders named in this registration statement.

(2) Represents the higher of: (i) the price at which the warrants may be exercised and (ii) the price of the common stock underlying the warrants calculated in accordance with Rule 457(c) under the Securities Act, solely for the purpose of calculating the registration fee pursuant to Rule 457(g) under the Securities Act.

(3) Represents the average of the high and low sale prices of the common stock reported on the Nasdaq Global Market on June 25, 2020, solely for the purpose of calculating the registration fee pursuant to Rule 457(c) under the Securities Act. 

 

The Registrantregistrant hereby amends this Registration Statementregistration statement on such date or dates as may be necessary to delay its effective date until the Registrantregistrant shall file a further amendment which specifically states that this Registration Statementregistration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the Registration Statementregistration statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

determine.

 


Explanatory Note

The purpose ofinformation in this Amendment No. 2prospectus is not complete and may be changed. The selling stockholders may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the Registration Statement on Form S-3 (333-215530)offer or sale is to update the section entitled “Incorporation by Reference” in the Prospectus. No other changes have been made to Part I or, except as set forth in Item 16 (Exhibits), Part II of the referenced Registration Statement.



THE INFORMATION CONTAINED IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. THESE SECURITIES MAY NOT BE SOLD UNTIL THE REGISTRATION STATEMENT FILED WITH THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.
not permitted.

SUBJECT TO COMPLETION, DATED JUNE 29, 2020

PRELIMINARY PROSPECTUS

 

FEBRUARY 24Up to 17,396,320 Shares of Common Stock
Offered by the Selling Stockholders
, 2017

PROSPECTUS

 
$150,000,000
Debt Securities
Preferred Stock
Common Stock
Warrants
Units

We may

This prospectus relates to the offer and sale from time to time by the selling stockholders named in this prospectus of up to 17,396,320 shares of our common stock, par value $0.0001 per share, of which (i) 8,000,000 shares are issuable upon the exercise of warrants that were issued in connection with and pursuant to our $200,000,000 senior secured credit facility entered into on October 31, 2019 (collectively, the “outstanding warrants”) and (ii) 9,396,320 shares were issued upon the cashless exercise of additional warrants issued in connection with and pursuant to such credit facility. The outstanding warrants are exercisable to purchase up to 8,000,000 shares of our common stock at an initial exercise price of $0.242 per share.

We are not selling any common stock under this prospectus and will not receive any of the proceeds from the sale or other disposition of shares by the selling stockholders. We will, however, receive proceeds from any outstanding warrants that are exercised by the selling stockholders through the payment of the exercise price in cash, if any.

The selling stockholders or their respective transferees, pledgees, assignees, or successors-in-interest may offer and sell any combinationor otherwise dispose of debt securities, preferred stock, warrants and/orthe shares of common stock described in this prospectus either individuallyfrom time to time through public or in units, in oneprivate transactions at prevailing market prices, at prices related to prevailing market prices, or more offerings.at privately negotiated prices. The aggregate initial offering price of all securities sold under this prospectus will not exceed $150,000,000.

The securitiesselling stockholders may be offered tosell the stock directly or through underwriters, through agentsbrokers or dealers through marketand will bear all commissions and discounts, if any, attributable to the sales directly to one or more purchasers or through a combination of such methods.their shares. We will bear all other costs, expenses, and fees in connection with the registration of the shares. See “Plan of Distribution.”
This prospectus provides a general descriptionDistribution” beginning on page 14 for more information about how the selling stockholders may sell or dispose of the securities we may offer. In certain cases, we specify in an accompanying prospectus supplement the specific termsshares of the securities offered and the offering price and terms of an offering of the securities, including, but not limited to, the names of any underwriters, agents or dealers. The prospectus supplement may also add, update or change information contained in this prospectus. You should read this prospectus and the applicable prospectus supplement, if any, carefully before you invest in any securities.
We will use the net proceeds received from the sale of the securities by the Company for general corporate purposes.
common stock.

Our common stock is quotedtraded on the NASDAQNasdaq Global Market under the symbol “FCEL”. No public market currently exists for“FCEL.” On June 26, 2020, the other securities offered hereby. The applicable prospectus supplement will contain information, where applicable, as to any other listing on any securities exchangeclosing price of the securities covered by the prospectus supplement.

Our principal executive offices are located at 3 Great Pasture Road, Danbury, Connecticut 06813, and our telephone number is (203) 825-6000.
common stock was $2.09 per share.

 

Investing in our securitiescommon stock involves risks that are described in thea high degree of risk. See “Risk Factors” section beginning on page 4 of this prospectus.

prospectus, in our most recent Quarterly Report on Form 10-Q, in subsequently filed Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q, in other documents that are incorporated by reference herein, and in any applicable prospectus supplement and/or other offering material for a discussion of certain factors which should be considered prior to an investment in the common stock which may be offered hereby.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacydetermined if this prospectus is truthful or accuracy of this prospectus.complete. Any representation to the contrary is a criminal offense.

 

The date of this prospectus is           , 20172020.


TABLE OF CONTENTS

Table of Contents

Page

PageABOUT THIS PROSPECTUS1
  
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS31
ABOUT THIS PROSPECTUS3
FUELCELL ENERGY, INC.PROSPECTUS SUMMARY3
RISK FACTORS4
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDSRISK FACTORS54
USE OF PROCEEDS64
DESCRIPTION OF DEBT SECURITIES7
DESCRIPTION OF CAPITAL STOCK154
DESCRIPTION OF WARRANTS23
DESCRIPTION OF UNITSSELLING STOCKHOLDERS2512
PLAN OF DISTRIBUTION2614
DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES28
LEGAL MATTERS2916
EXPERTS29
EXPERTS16
WHERE YOU CAN FIND MORE INFORMATION30
INCORPORATION BY REFERENCE3016

 

You should rely only on the information contained, or incorporated by reference, in this prospectus or to which we have referred you. We have not authorized anyone to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. You should not assume that the information in this prospectus is accurate as of any date other than the date on the front of this prospectus or that any document incorporated by reference is accurate as of any date other than its filing date. You should not consider this prospectus to be an offer or solicitation relating to the securities in any jurisdiction in which such an offer or solicitation relating to the securities is not authorized. Furthermore, you should not consider this prospectus to be an offer or solicitation relating to the securities if the person making the offer or solicitation is not qualified to do so, or if it is unlawful for you to receive such an offer or solicitation.

2


ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that FuelCell Energy, Inc. (“FuelCell Energy,” “FuelCell,” the “Company,” “we,” “our,” “us” or similar terms) filed with the Securities and Exchange Commission (the “SEC”) and pursuant to which the selling stockholders may from time to time sell up to 17,396,320 shares of our common stock, par value $0.0001 per share, of which (i) 8,000,000 shares are issuable upon the exercise of outstanding warrants and (ii) 9,396,320 shares were issued upon the cashless exercise of warrants. This prospectus and any other document we may authorize to be delivered to you includes all material information relating to the offering of our common stock by the selling stockholders.

As permitted by the rules and regulations of the SEC, the registration statement, of which this prospectus forms a part, includes additional information not contained in this prospectus. You may read the registration statement and the other reports we file with the SEC at the SEC’s web site described below under the heading “Where You Can Find More Information.”

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, any prospectus supplement, and the informationdocuments incorporated herein by reference herein and therein and any related free writing prospectuses issued by us may contain forward-looking statements about our financial condition, results of operations, plans, objectives, future performance, business, and expectations, beliefs, intentions and strategies for the future. Statements preceded by, followed by or that include words such as “expects,” “anticipates,” “estimates,” “goals,” “projects,” “intends,” “plans,” “believes,” “predicts,” “should,” “seeks,” “will,” “could,” “would,” “may,” “forecast,” or similar expressions and variations of such words are intended to identify forward-looking statements within the meaning of Section 27A of the Private Securities Litigation Reform Act of 1933, as amended (the “Securities Act”),1995 and Section 21Eare included, along with this statement, for purposes of complying with the Securities Exchange Actsafe harbor provisions of 1934, as amended (the “Exchange Act”).  Thesethat Act. Such statements relate to, future events and expectations and can be identified byamong other things, the use of predictive, future-tense or forward-looking terminology, such as “expects”, “anticipates”, “estimates”, “should”, “will”, “could”, “would”, and “may”. Such statements relate tofollowing: (i) the development and commercialization by FuelCell Energy, Inc. and its subsidiaries (“FuelCell Energy”, “Company”, “we”, “us” and “our”)the Company of fuel cell technology and products and the market for such products,products; (ii) expected operating results such as revenue growth and earnings; (iii) our beliefs regarding our liquidity position and our ability to fund our business operations, including, but not limited to, our belief that we have sufficient liquidity to fund our business operations for 12 months following the filing of our Quarterly Report on Form 10-Q for the quarter ended April 30, 2020; (iv) future funding under government researchAdvanced Technologies contracts; (v) future financing for projects, including equity and development contracts,debt investments by investors and commercial bank financing, as well as overall financial market conditions; (vi) actions by our current loan counterparties; (vii) our ability to comply with the terms and conditions of our loans, including the use of proceeds of our loans as described in our Quarterly Report on Form 10-Q for the quarter ended April 30, 2020; (viii) the expected cost competitiveness of our technology,technology; and (ix) our ability to achieve our sales plans, market access and market expansion goals, and cost reduction targets. These

Forward-looking statements are neither historical facts, nor assurances of future performance. Instead, such statements are based only on our current beliefs, expectations and otherassumptions regarding the future. As such, the realization of matters expressed in forward-looking statements contained in this prospectus are subject toinvolves inherent risks and uncertainties, known and unknown, that could causeuncertainties. Our actual results tomay differ materially from those contemplated by any such forward-looking statements due to, among other factors, the risks and uncertainties described in or incorporated by reference into this prospectus, including without limitation, generalthe risks associated with product development and manufacturing, changesdescribed in the utility regulatory environment, potential volatility of energy prices, government appropriations, the ability of the government to terminate its development contracts at any time, rapid technological change, and competition and changes in accounting policies or practices adopted voluntarily or as required by accounting principles generally accepted in the United States, as well as other risks contained in Part I, Item 1A “Risk Factors” of our AnnualQuarterly Report on Form 10-K10-Q for the yearquarter ended October 31, 2016, as well as those discussed elsewhereApril 30, 2020 in this prospectus, any accompanying prospectus supplement orthe section entitled “Risk Factors,” the risks described in any document incorporated by reference herein or therein. subsequent Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, and the following risks and uncertainties:

general risks associated with product development and manufacturing;
​●general economic conditions;
​●changes in the utility regulatory environment;
​●changes in the utility industry and the markets for distributed generation, distributed hydrogen, and carbon capture configured fuel cell power plants;
​●potential volatility of energy prices;
​●availability of government subsidies and economic incentives for alternative energy technologies;
​●our ability to remain in compliance with U.S. federal and state and foreign government laws and regulations and the listing rules of The Nasdaq Stock Market (“Nasdaq”);
​●rapid technological change;


​●intense competition in the alternative energy industry;
​●our dependence on strategic relationships;
​●market acceptance of our products and fuel cell systems generally;
​●changes in accounting policies or practices adopted voluntarily or as required by accounting principles generally accepted in the United States;
​●factors affecting our liquidity position and financial condition;
​●government appropriations;
​●the ability of the government to terminate its development contracts at any time;
​●the ability of the government to exercise “march-in” rights with respect to certain of our patents;
​●the situation with POSCO Energy Co., Ltd. which has limited and continues to limit our efforts to access the South Korean and Asian markets and could expose us to costs of arbitration or litigation proceedings;
our ability to implement our strategy;
​●our ability to reduce our levelized cost of energy and our cost reduction strategy generally;
​●our ability to protect our intellectual property;
​●litigation and other proceedings;
​●the risk that commercialization of our products will not occur when anticipated;
​●our need for and the availability of additional financing;
​●our ability to generate positive cash flow from operations;
​●our ability to service our long-term debt;
our ability to increase the output and longevity of our power plants;
​●our ability to expand our customer base and maintain relationships with our largest customers and strategic business allies;
​●changes by the U.S. Small Business Administration or other governmental authorities regarding the Coronavirus Aid, Relief, and Economic Security Act, the Payroll Protection Program or related administrative matters; and
​●concerns with, threats of, or the consequences of, pandemics, contagious diseases or health epidemics, including the novel coronavirus (COVID-19), and resulting supply chain disruptions, shifts in clean energy demand, impacts to our customers’ capital budgets and investment plans, impacts to our project schedules, impacts to our ability to service existing projects, or the demand for our products.

We cannot assure you thatthat: we will be able to meet any of our development or commercialization schedules, thatschedules; we will be able to remain in compliance with the minimum bid price requirement of the Nasdaq listing rules; any of our new products or technologies, once developed, will be commercially successful; our existing SureSource power plants will remain commercially successful; we will be able to draw down on our existing credit facilities or obtain new financing or raise capital to achieve our business plans; the government will appropriate the funds anticipated by us under our government contracts, thatcontracts; the government will not exercise its right to terminate any or all of our government contracts, that any of our productscontracts; or technology, once developed, will be commercially successful, or that we will be able to achieve any other result anticipated in any other forward-looking statement contained or incorporated by reference herein. The

Any forward-looking statementsstatement contained in this prospectus and any prospectus supplement and the documents incorporated by reference herein speakand therein speaks only as of the date of this prospectus. Except for ongoing obligations to disclose material information under the federal securities laws, we expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any such statement to reflect any change in our expectations or any change in events, conditions or circumstances on which any suchthe statement is based.

ABOUT THIS PROSPECTUS
This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (“SEC”) utilizing a “shelf” registration process. By using a shelf registration statement, we are registering an unspecified amount of each class of securities described in this prospectus,was made, and we undertake no obligation to update publicly or revise any forward-looking statements for any reason, whether as a result of new information, future events or otherwise, except as may sellbe required by law. In addition to the factors outlined above, new risks emerge from time to time, and we cannot predict all of the risks that may impact our business or the extent to which any particular risk, or combination of the securities describedrisks, may cause actual results to differ materially from those contained in this prospectus in one or more offerings. In addition, we may use this prospectus and the applicable prospectus supplement in a remarketing or other resale transaction involving the securities after their initial sale. This prospectus provides you with a general description of the securities that we may offer. Each time we sell securities under this shelf registration, we will provide a prospectus supplement, if required, that will contain specific information about the terms of the offering. any forward-looking statement.


PROSPECTUS SUMMARY

The prospectus supplement may also add, update or change information contained in this prospectus. The rules of the SEC allow us to incorporateor incorporated by reference information into this prospectus summarizes certain information about our Company. It may not contain all of the information that is important to you. To understand this offering fully, you should read carefully the entire prospectus, including “Risk Factors” on page 4, and any prospectus supplement. Anythe other information incorporated by reference is considered to be a part of this prospectus and any applicable prospectus supplement, and information that we file later with the SEC will automatically update and supersede this information. See “Where You Can Find More Information.” You should read both this prospectus and any applicable prospectus supplement together with additional information described under the heading “Where You Can Find More Information,” and any free writing prospectus with respect to an offering filed by us with the SEC.

We are responsible for the information contained and incorporated by reference ininto this prospectus. We have not authorized anyone to give you any other information, and we take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We are not making an offer to sell these securities in any jurisdiction where the offer or sale

Our Business

FuelCell Energy is not permitted. You should not assume that the information contained or incorporated by reference in this prospectus or any prospectus supplement is accurate as of any date other than the date of the document containing the information.

FUELCELL ENERGY, INC.
Overview
We are ana leading integrated fuel cell company with an expandinga growing global presence on three continents. We design, manufacture, sell, install, operate and service ultra-clean, highly efficient stationaryin delivering environmentally-responsible distributed baseload power solutions through our proprietary, molten-carbonate fuel cell power plants for distributed power generation. Our power plants provide megawatt-class scalable on-site power and utility grid support, helping customers solve their energy, environmental and business challenges. Our plants are operating in more than 50 locations in nine countries on three different continents and have generated more than three billion kilowatt hours (kWh) of electricity, which is equivalent to powering more than 270,000 average size U.S. homes for one year. Our growing installed base and backlog exceeds 300 megawatts (MW).
FuelCell Energy was founded in Connecticut in 1969 as an applied research organization, providing contract research and development. The Company went public in 1992, raising capital to develop and commercialize fuel cells, and reincorporated in Delaware in 1999.technology. We began selling stationary fuel cell power plants commercially in 2003. Today we develop turn-key distributed power generation combined heatsolutions and power solutions for our customersoperate and provide comprehensive service for the life of the asset.
3

power plant. We are working to expand the proprietary technologies that we have developed over the past five decades into new products, applications, markets and geographies. Our mission and purpose remains to utilize our proprietary, state-of-the-art fuel cell platforms to reduce the global environmental footprint of baseload power generation by providing environmentally responsible solutions for reliable electrical power, hot water, steam, chilling, distributed hydrogen, micro-grid applications, electrolysis, long-duration hydrogen-based energy storage and carbon capture and, in so doing, drive demand for our products and services, thus realizing positive stockholder returns.

The Offering

On October 31, 2019, we and certain of our subsidiaries as guarantors entered into a credit agreement for a $200,000,000 senior secured credit facility (as amended from time to time, the “Credit Facility”) structured as a delayed draw term loan. In conjunction with the closing of the Credit Facility, on October 31, 2019, we drew down $14,500,000 (the “Initial Funding”), and, on November 22, 2019, we drew down an additional $65,500,000 (the “Second Funding”).

In connection with the closing of the Credit Facility and the Initial Funding, on October 31, 2019, we issued to the lenders under the Credit Facility warrants to purchase up to a total of 6,000,000 shares of our common stock at an initial exercise price of $0.310 per share. All of these warrants were exercised, on a cashless basis, on January 9, 2020, resulting in the issuance of 5,132,106 shares of common stock.

In addition, on November 22, 2019, in connection with the Second Funding, the lenders were issued additional warrants to purchase up to a total of 14,000,000 shares of our common stock, with an initial exercise price with respect to 8,000,000 of such shares of $0.242 per share and with an initial exercise price with respect to 6,000,000 of such shares of $0.620 per share. Of these warrants, warrants to purchase 6,000,000 shares of common stock were exercised, on a cashless basis, on January 9, 2020, resulting in the issuance of 4,264,214 shares of common stock. Following this cashless exercise, there are warrants to purchase up to 8,000,000 shares of common stock at an initial exercise price of $0.242 per share outstanding.

See “DESCRIPTION OF CAPITAL STOCK — Warrants Issued in Connection with the Credit Facility” for additional information regarding the terms of the warrants.

This prospectus relates to the offer and sale from time to time by the selling stockholders named in this prospectus of up to 17,396,320 shares of our common stock, of which (i) 8,000,000 shares are issuable upon the exercise of outstanding warrants that were issued in connection with and pursuant to our Credit Facility and (ii) 9,396,320 shares were issued upon the cashless exercise of certain additional warrants that were issued in connection with and pursuant to our Credit Facility.

Corporate Information

Our principal executive offices are located at 3 Great Pasture Road, Danbury, Connecticut 06813.06810. Our telephone number is (203) 825-6000. We maintain a web site at the following Internet address: www.fuelcellenergy.com. The information on, or that can be accessed through, our web site is not incorporated by reference ininto this prospectus, or any prospectus supplement, and you should not consider it to be a part of this prospectus or any prospectus supplement.prospectus. Our web site address is included as an inactive textual reference only.


RISK FACTORS

Investing in our securitiescommon stock involves risks. Before deciding to purchase anya high degree of our securities, yourisk. You should carefully consider the discussion ofspecific risks and uncertaintiesset forth under the headingcaption “Risk Factors” contained in our Annualmost recent Quarterly Report on Form 10-Q and in subsequently filed Annual Reports on Form 10-K, forQuarterly Reports on Form 10-Q and Current Reports on Form 8-K, which are incorporated into this prospectus by reference, and in any applicable prospectus supplement and/or other offering material. You should consider carefully those risk factors together with all of the fiscal year ended October 31, 2016, which isother information included and incorporated by reference in this prospectus and under similar headings in our subsequently filed quarterly reports on Form 10-Q and annual reports on Form 10-K, as well as the other risks and uncertainties describedbefore investing in any applicable prospectus supplement and in the other documents incorporatedshares of common stock offered by reference in this prospectus. See the section entitledFor more information, see “Where You Can Find More Information” in this prospectus. TheInformation.” Any of these risks and uncertainties we discuss in the documents incorporated by reference in this prospectus are those we currently believe may materially affect our company. Additional risks and uncertainties not presently known to us or that we currently believe are immaterial also maycould materially and adversely affect our business, results of operations and financial condition, which in turn could materially and results of operations.

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RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS

The ratioadversely affect the price of our earnings to fixed charges are set forth below for eachcommon stock and the value of the periods indicated.
Fiscal Year Ended October 31,
2016 (1)
2015 (1)
2014 (1)
2013 (1)
2012 (1)
Ratio of earnings to fixed charges and preference dividendsN/AN/AN/AN/AN/A
(1)For the fiscal years ended October 31, 2016, 2015, 2014, 2013 and 2012, our earnings were insufficient to cover fixed charges. The coverage deficiencies were $54.8 million, $32.6 million, $40.8 million, $37.2 million and $34.2 million, respectively.
For purposes of calculating the ratios of earnings to fixed charges, (i) fixed charges consist of interest on debt, amortization of discount on debt, capitalized interest, estimate of interest within rental expense, and preferred dividends and (ii) earnings consist of pre-tax income from operations and fixed charges (excluding preferred dividends and capitalized interest) and include the amortization of capitalized interest.
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your investment in our common stock.

USE OF PROCEEDS

Except as may be provided in an applicable prospectus supplement, we intend to use the net

We will not receive any proceeds from the sale by the selling stockholders of the securitiesshares of common stock offered by this prospectusprospectus. We will, however, receive proceeds on the exercise by the selling stockholders of the outstanding warrants if such warrants are exercised for market and product development, project financingcash. If all of the outstanding warrants are fully exercised for cash, we will receive gross cash proceeds of approximately $1.94 million. We expect to use the proceeds from the exercise of such warrants, if any, for working capital and general corporate purposes. General corporate purposes may include capital expenditures, repayment of debt, payment of dividends and any other purposes that we may specify in any prospectus supplement. We may invest the net proceeds temporarily until we use them for their stated purpose.

The actual application of proceeds we receive from any particular primary offering of securities using this prospectus will be described in the applicable prospectus supplement relating to such offering.
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DESCRIPTION OF DEBT SECURITIES

CAPITAL STOCK

General

The following descriptionis a summary of the termsrights of the debt securities sets forth certain general termsour common stock and preferred stock, and related provisions of the debt securitiesour Certificate of Incorporation, as amended (“Certificate of Incorporation”), and our Amended and Restated By-laws (“By-laws”). This summary does not purport to which any prospectus supplement may relate. The particular terms of the debt securities offered by any prospectus supplementbe complete and the extent, if any, to which these general provisions may apply to those debt securities will be described in the prospectus supplement relating to those debt securities. Accordingly, for a description of the terms of a particular issue of debt securities, reference must be made to both the prospectus supplement relating thereto and to the following description. As used in this section, “we,” “our” and “us” refer only to FuelCell Energy, Inc. and not to its consolidated subsidiaries.

We may offer and sell debt securities from time to time in one or more series (the “Debt Securities”). The following description of Debt Securities will apply to the Debt Securities offered by this prospectus unless we provide otherwise in the applicable prospectus supplement. The applicable prospectus supplement for a particular series of Debt Securities may specify different or additional terms.
The Debt Securities will be either our unsecured senior debt securities (the “Senior Debt Securities”) or our unsecured subordinated debt securities (the “Subordinated Debt Securities”). The Senior Debt Securities may be issued under an Indenture (the “Senior Indenture”) between us and a trustee that will be identified in a prospectus supplement (the “Senior Trustee”). The Senior Debt Securities will be our direct, unsecured obligations and will rank equally with all of our outstanding unsecured senior indebtedness. The Subordinated Debt Securities may be issued under a second indenture (the “Subordinated Indenture”) between us and a trustee that will be identified in a prospectus supplement (the “Subordinated Trustee”), which may be the same as the Senior Trustee. The Subordinated Debt Securities will be our direct, unsecured obligations and, unless otherwise specified in the prospectus supplement relating to a particular series of Subordinated Debt Securities offered by such prospectus supplement, will beis subject to, the subordination provisions set forth under the heading “Subordination of the Subordinated Debt Securities” below. The Senior Indenture and the Subordinated Indenture are together called the “Indentures” and the Senior Trustee and the Subordinated Trustee are together called the “Trustee.” Copies of the forms of each Indenture are incorporated by reference as exhibits to this registration statement.
The following section summarizes certain general terms and provisions of the Debt Securities and Indentures, and should not be considered a complete description of the terms and provisions of each Indenture.  Accordingly, the following discussion is qualified in its entirety by, reference to the provisions of the Indentures.
General
An Indenture will not limit the aggregate principal amount of Debt Securities that we may issue. Each Indenture may provide that Debt Securities of any series may be issued under it up to the aggregate principal amount authorized from time to time by us and may be denominated in any currency or currency unit that we designate. We will determine the terms and conditions of each series of Debt Securities, including the maturity, principal and interest, but those terms must be consistent with the Indenture. Unless set forth in the applicable prospectus supplement, neither the Indentures nor the Debt Securities will limit or otherwise restrict the amount of other indebtedness that we may incur or the other securities that we may issue.
The prospectus supplement relating to each series of Debt Securities being offered will specify the particular terms of those Debt Securities. The terms may include:
the title of the Debt Securities and whether they are Senior Debt Securities or Subordinated Debt Securities;
the aggregate principal amount of such Debt Securities and any limit on such aggregate principal amount that may be issued;
the denomination or denominations in which the Debt Securities will be issuable if other than $1,000 and integral multiples thereof;
the priority of payment of the Debt Securities, including any subordination provisions;
the price or prices (which may be expressed as a percentage of the aggregate principal amount thereof) at which the Debt Securities will be issued and, if other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of the maturity thereof;
the date or dates, or the method for determining such date of dates, on which the Debt Securities will mature and the amounts to be paid upon maturity of the Debt Securities;
the rate or rates (which may be fixed or variable), or the method by which such rate or rates shall be determined, at which such Debt Securities will bear interest, if any, the date or dates, or the method for determining such date or dates, from which any such interest will accrue, the dates on which any such interest will be payable, the record dates for such interest payment dates, or the method by which such dates shall be determined, the persons to whom such interest shall be payable, and the basis upon which interest shall be calculated, if other than that of a 360-day year of twelve 30-day months;
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our right, if any, to defer payment of interest and the maximum length of any such deferral period;
the place or places where the principal of, and premium and interest, if any, on such Debt Securities will be payable, where such Debt Securities may be surrendered for registration of transfer or exchange and where notices or demands to or upon us in respect of such Debt Securities may be served;
the date or dates, if any, after which, and the price or prices at which, and the other terms and conditions upon which such Debt Securities may, pursuant to any optional or mandatory redemption provisions, be redeemed, as a whole or in part, by us;
Our obligation, if any, to redeem, repay or purchase such Debt Securities pursuant to any sinking fund or analogous provision or at the option of a holder thereof, and the period or periods within which, the price or prices at which and the other terms and conditions upon which such Debt Securities will be redeemed, repaid or purchased, as a whole or in part, pursuant to such obligation;
the terms, if any, on which the Debt Securities of such series are convertible into, or exchangeable for, shares of our common stock or other securities, including any mandatory conversion or exchange provisions and any provisions intended to prevent dilution of those conversion or exchange rights;
whether such Debt Securities will be secured or unsecured and the terms relating thereto;
the restrictions, if any, on the transfer, sale or other assignment of the Debt Securities;
if other than U.S. dollars, the currency or currencies in which such Debt Securities are denominated and payable, which may be a foreign currency or units of two or more foreign currencies or a composite currency or currencies, and the terms and conditions relating thereto;
whether the principal of, or premium and interest, if any, on the Debt Securities of the series is to be payable, at our election or the election of a holder thereof, in a currency or currencies, currency unit or units or composite currency or currencies other than that in which such Debt Securities are denominated or stated to be payable, the period or periods within which, and the terms and conditions upon which, such election may be made, and the time and manner of, and identity of the exchange rate agent with responsibility for, determining the exchange rate between the currency or currencies, currency unit or units or composite currency or currencies in which such Debt Securities are denominated or stated to be payable and the currency or currencies, currency unit or units or composite currency or currencies in which such Debt Securities are to be so payable;
whether the amount of payments of principal of, or premium and interest, if any, on such Debt Securities may be determined with reference to an index, formula or other method (which index, formula or method may, but need not be, based on the yield on or trading price of other securities, including United States Treasury securities, or on a currency, currencies, currency unit or units, or composite currency or currencies) and the manner in which such amounts shall be determined;
any deletions from, modifications of or additions to the Events of Default (as defined in the applicable Indenture) or covenants of the Company with respect to Securities of the series, whether or not such Events of Default or covenants are consistent with the Events of Default or covenants described herein;
whether and under what circumstances we will pay any additional amounts on such Debt Securities in respect of any tax, assessment or governmental charge and, if so, whether we will have the option to redeem such Debt Securities in lieu of making such payment;
whether Debt Securities of the series are to be issuable as registered securities, bearer securities (with or without coupons) or both, any restrictions applicable to the offer, sale or delivery of bearer securities and the terms upon which bearer securities of the series may be exchanged for registered securities of the series and vice versa (if permitted by applicable laws and regulations), whether any Debt Securities of the series are to be issuable initially in temporary global form and whether any Debt Securities of the series are to be issuable in permanent global form with or without coupons and, if so, whether beneficial owners of interests in any such permanent Global Security (as defined herein) may exchange such interests for Debt Securities of such series and of like tenor or any authorized form and denomination and the circumstances under which any such exchanges may occur, if other than in the manner provided in the indenture, and, if registered securities of the series are to be issuable as a Global Security, the identity of the depositary for such series;
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the date as of which any bearer securities of the series and any temporary Global Security representing outstanding Debt Securities of the series shall be dated if other than the date of original issuance of the first Security of the series to be issued;
the person to whom any interest on any registered security of the series shall be payable, if other than the person in whose name that Debt Security (or one or more predecessor securities) is registered at the close of business on the regular record date for such interest, the manner in which, or the person to whom, any interest on any bearer security of the series shall be payable, if otherwise than upon presentation and surrender of the coupons appertaining thereto as they severally mature, and the extent to which, or the manner in which, any interest payable on a temporary Global Security on an interest payment date will be paid if other than in the manner provided in the applicable Indenture;
the applicability, if any, of the legal defeasance and covenant defeasance provisions of the Indenture to the Debt Securities of the series;
whether such Debt Securities will be issued in certificated or book entry form, and if the Debt Securities of such series are to be issuable in definitive form (whether upon original issue or upon exchange of a temporary security of such series) only upon receipt of certain certificates or other documents or satisfaction of other conditions, then the form and/or terms of such certificates, documents or conditions;
whether the Debt Securities will be listed for trading on an exchange and the identity of such exchange, and whether any underwriters will act as market makers for the Debt Securities; and
any other terms, preferences, rights or limitations of, or restrictions on, the Debt Securities of such series, including any restrictions on the transfer, sale or other assignment of the Debt Securities.
Debt Securities may be issued as original issue discount Debt Securities (bearing no interest or interest at a rate that at the time of issuance is below market rates) (“Original Issue Discount Securities”), to be sold at a substantial discount below their stated principal amount. There may not be any periodic payments of interest on Original Issue Discount Securities. In the event of an acceleration of the maturity of any Original Issue Discount Security, the amount payable to the holder of such Original Issue Discount Security upon such acceleration will be set forth in the prospectus supplement and determined in accordance with the terms of such security and the applicable Indenture, but will be an amount less than the amount payable at the maturity of the principal of such Original Issue Discount Security. The federal income tax considerations with respect to Original Issue Discount Securities will be explained in the prospectus supplement we prepare for the Original Issue Discount Securities.
Conversion and Exchange Rights
The prospectus supplement will describe, if applicable, the terms on which you may convert Debt Securities into or exchange them for our common stock, our preferred stock or other securities or property. The conversion or exchange may be mandatory or may be at your option. We will describe how the number of shares of our common stock, our preferred stock or other securities or property to be received upon conversion or exchange would be calculated.
Form, Exchange and Transfer
We will issue Debt Securities only in fully registered form, without coupons, and, unless otherwise specified in the prospectus supplement, only in denominations of $1,000 and integral multiples thereof.
The holder of a Debt Security may elect, subject to the terms of the applicable Indenture and the limitations applicable to Global Securities, to exchange them for other Debt Securities of the same series of any authorized denomination and of a like tenor and aggregate principal amount.
Holders of Debt Securities may present them for exchange as provided above or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed, at the office of the transfer agent we designate for the purpose. We will not impose a service charge for any registration of transfer or exchange of Debt Securities, but we may require a payment sufficient to cover any tax or other governmental charge payable in connection with the transfer exchange. We will name the transfer agent in the prospectus supplement. We may designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, but we must maintain a transfer agent in each place of payment for the Debt Securities.
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If we redeem the Debt Securities, we will not be required to issue, register the transfer of or exchange any Debt Security during a specified period prior to mailing a notice of redemption. We are not required to register the transfer of or exchange any Debt Security selected for redemption, except the unredeemed portion of the Debt Security being redeemed.
Payment and Paying Agents
Unless otherwise stated in the prospectus supplement, we will pay principal and any premium or interest on a Debt Security to the person in whose name the Debt Security is registered at the close of business on the regular record date for such interest.
Unless otherwise stated in the prospectus supplement, we will pay principal and any premium or interest on the Debt Securities at the office of our designated paying agent. Unless we state otherwise in the prospectus supplement, the corporate trust office of the Trustee will be the paying agent for the Debt Securities.
Any other paying agents we designate for the Debt Securities of a particular series will be named in the prospectus supplement. We may designate additional paying agents, rescind the designation of any paying agent or approve a change in the office through which any paying agent acts, but we must maintain a paying agent in each place of payment for the Debt Securities.
The paying agent will return to us all money we pay to it for the payment of the principal, premium or interest on any Debt Security that remains unclaimed for a specified period. The holder thereafter may look only to us for payment.
Global Securities
The Debt Securities of any series may be represented by one or more global securities (each, a “Global Security” and, together, the “Global Securities”) that will have an aggregate principal amount equal to that of the Debt Securities of that series. Each Global Security will be registered in the name of a depositary identified in the prospectus supplement. We will deposit the Global Security with the depositary or a custodian, and the Global Security will bear a legend regarding the restrictions on exchanges and registration of transfer.
No Global Security may be exchanged in whole or in part for Debt Securities registered, and no transfer of a Global Security in whole or in part may be registered, in the name of any person other than the depositary or any nominee of the depositary unless (1) the depositary has notified us that it is unwilling or unable to continue as depositary or (2) an event of default occurs and continues with respect to the Debt Securities. The depositary will determine how all securities issued in exchange for a Global Security will be registered.
As long as the depositary or its nominee is the registered holder of a Global Security, the depositary or the nominee will be considered the sole owner and holder of the Global Security and the underlying Debt Securities. Except as stated above, owners of beneficial interests in a Global Security will not be entitled to have the Global Security or any Debt Security registered in their names, will not receive physical delivery of certificated Debt Securities and will not be considered to be the owners or holders of the Global Security or underlying Debt Securities. We will make all payments of principal, premium and interest on a Global Security to the depositary or its nominee. The laws of some jurisdictions require that certain purchasers of securities take physical delivery of such securities in definitive form. These laws may prevent you from transferring your beneficial interests in a Global Security.
Only institutions that have accounts with the depositary or its nominee and persons that hold beneficial interests through the depositary or its nominee may own beneficial interests in a Global Security. The depositary will credit, on its book-entry registration and transfer system, the respective principal amounts of Debt Securities represented by the Global Security to the accounts of its participants. Ownership of beneficial interests in a Global Security will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by the depositary or any such participant.
The policies and procedures of the depositary may govern payments, transfers, exchanges and other matters relating to beneficial interests in a Global Security. We and the Trustee assume no responsibility or liability for any aspect of the depositary’s or any participant’s records relating to, or for payments made on account of, beneficial interests in a Global Security.
The specific terms of the depositary arrangement with respect to any series of Debt Securities will be described in the applicable prospectus supplement.
Consolidation, Merger and Sale of Assets
Each Indenture may provide that we may, without the consent of the holders of any of the Debt Securities outstanding under the applicable Indenture, consolidate with, merge into or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of our assets to any person, provided that:
the surviving company is organized and existing under the laws of the United States, any state thereof or the District of Columbia;
the surviving company assumes our obligations on the applicable Debt Securities and under the applicable Indenture;
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after giving effect to the transaction, there is no Default or Event of Default that has occurred and is continuing; and
certain other conditions under the applicable Indenture are met.
Accordingly, such consolidation, merger or sale, assignment, transfer, lease or conveyance of assets, which meets the conditions described above, would not create any Event of Default which would entitle holders of the Debt Securities, or the Trustee on their behalf, to take any of the actions described below under “Events of Default.”
Leveraged and Other Transactions
Unless otherwise specified in the applicable prospectus supplement, the Indentures and the Debt Securities will not contain, among other things, provisions that would protect holders of the Debt Securities in the event of a highly leveraged or other transaction involving us that could adversely affect the holders of Debt Securities.
Modification of the Indentures; Waiver
Each Indenture may provide that, with the consent of the holders of not less than a majority in aggregate principal amount of the outstanding Debt Securities of each affected series, modifications and alterations of such Indenture may be made that affect the rights of the holders of such Debt Securities. However, no such modification or alteration may be made without the consent of the holder of each Debt Security so affected which would, among other things:
reduce the aggregate principal amount of Debt Securities of any series the holders of which must consent to an amendment, supplement modification or waiver of any provision of the Indentures;
reduce the rate of or extend the time for payment of interest on any series of Debt Securities;
reduce the principal of or change the stated maturity of any series of Debt Securities;
change the date on which any Debt Security of any of series may be subject to redemption, or reduce the premium payable upon the redemption or repurchase thereof;
make any Debt Security of any series payable in currency other than that stated in the Debt Security;
modify or change any provision of the Indentures affecting the ranking of the Debt Securities of any series in a manner which adversely affects the holders thereof;
impair the right of any holder of Debt Securities to institute suit for the enforcement of any payment in or with respect to any such series of Debt Securities; or
make any change in the amendment and waiver provisions of the Indentures which require each holder’s consent.
The holders of a majority in aggregate principal amount of the outstanding Debt Securities of any series may waive, on behalf of the holders of all Debt Securities of that series, our compliance with certain restrictive provisions of any Indenture. Prior to the acceleration of the maturity of the Debt Securities of any series outstanding under an Indenture, the holders of a majority in aggregate principal amount of the outstanding Debt Securities of any series may waive any past default under an Indenture with respect to Debt Securities of that series, except a default (1) in the payment of principal, premium or interest on any Debt Security of that series or (2) in respect of a covenant or provision of an Indenture that cannot be amended without each holder’s consent.
Except in certain limited circumstances, we may set any day as a record date for the purpose of determining the holders of outstanding Debt Securities of any series entitled to give or take any direction, notice, consent, waiver or other action under an Indenture. In certain limited circumstances, the Trustee may set a record date for action by holders. To be effective, the action must be taken by holders of the requisite principal amount of such Debt Securities within a specified period following the record date.
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Events of Default
An Event of Default with respect to the Debt Securities of any series may be defined in an applicable Indenture as:
default in the payment of principal, premium or sinking fund payment, if any, on any Debt Security of that series when due, whether or not, in the case of Subordinated Debt Securities, such payment is prohibited by the Subordinated Indenture;
default in the payment of interest on any Debt Security of that series when due, which continues for 90 days, whether or not, in the case of Subordinated Debt Securities, such payment is prohibited by the Subordinated Indenture;
Failure to comply in any material respect with any agreement or covenants in, or provisions of, the Debt Securities or the applicable Indenture with respect to the Debt Securities of such series, which continues for 90 days after written notice by the Trustee or the holders of at least 51% in aggregate principal amount of the outstanding Debt Securities of that series;
certain events of bankruptcy, insolvency or reorganization affecting us; and
any other event that may be specified in a prospectus supplement with respect to any series of Debt Securities.
If an Event of Default (other than an Event of Default relating to events of bankruptcy, insolvency or reorganization) with respect to any series of Debt Securities occurs and is continuing, either the Trustee or the holders of at least 51% in aggregate principal amount of the outstanding Debt Securities of such series outstanding may declare immediately due and payable the unpaid the principal amount (or if such Debt Securities are Original Issue Discount Securities, such portion of the principal amount as may be specified in the terms of that series) of all Debt Securities of that series. If an Event of Default relating to events of bankruptcy, insolvency or reorganization with respect to the Debt Securities of any series at the time outstanding shall occur, all unpaid principal, premium and accrued interest an all the Debt Securities of that series (or, in the case of any such Original Issue Discount Security, such specified amount) will automatically, and without any action by the applicable Trustee or any holder. After any such acceleration, but before a judgment or decree based on acceleration, the holders of a majority in principal amount of the outstanding Debt Securities of that series may, under certain circumstances, rescind and annul such acceleration if all Events of Default, other than the non-payment of accelerated principal (or other specified amount), have been cured or waived as provided in the applicable Indenture. For information as to waiver of defaults, see “Modification of the Indentures; Waiver.”
If an Event of Default occurs and is continuing, the Trustee may, in its discretion, and at the written request of holders of not less than a majority in aggregate principal amount of the Debt Securities of any series, and upon reasonable indemnity against the costs, expenses and liabilities to be incurred in compliance with such request and subject to certain other conditions set forth in the applicable Indenture will, proceed to protect the rights of the holders of all the Debt Securities of such series.
The Indentures will provide that upon the occurrence of an Event of Default relating to payments of principal of, premium, if any, or interest on any Debt Security, we will, upon demand of the Trustee, pay to it, for the benefit of the holder of any such Debt Security, the whole amount then due and payable on such Debt Securities for principal, premium, if any, and interest. The Indentures will further provide that that if we fail to pay such amount upon such demand, the Trustee may, among other things, institute a judicial proceeding for the collection of the amount due.
No holder of a Debt Security of any series may institute any proceeding with respect to an Indenture, or for the appointment of a receiver or a trustee, or for other remedy, unless (1) the holder has previously given the Trustee written notice of a continuing event of default, (2) the holders of at least 25% in aggregate principal amount of the outstanding Debt Securities of that series have made a written request, and the holders have offered reasonable indemnity to the Trustee to institute the proceeding, (3) the Trustee has failed to institute the proceeding, and has not received a direction inconsistent with the request within 60 days of such notice, and (4) during such 60-day period, the holders of at least a majority in aggregate principal amount of such series of Debt Securities do not give the Trustee a direction inconsistent with the request. The Indenture may also provide that, notwithstanding any other provision of the applicable Indenture, the holder of any Debt Security of any series will have the right to institute suit for the enforcement of any payment of principal of, premium, if any, and interest on such Debt Securities when due and that such right will not be impaired without the consent of such holder.
We are required to file annually with the applicable Trustee a written statement as to the existence or non-existence of defaults under the Indentures or the Debt Securities.
Subordination of the Subordinated Debt Securities
The Subordinated Debt Securities will be our direct, unsecured obligations and, unless otherwise specified in the prospectus supplement relating to a particular series of Subordinated Debt Securities offered by such prospectus supplement, will be subject to the subordination provisions described in this section. Upon any distribution of our assets due to any dissolution, winding up, liquidation or reorganization, the payment of the principal of, premium, if any, and interest on the Subordinated Debt Securities is to be subordinated in right of payment to all Senior Indebtedness. In certain events of bankruptcy or insolvency, the payment of the principal of and interest on the Subordinated Debt Securities will, to the extent provided in a Subordinated Indenture, also be effectively subordinated in right of payment to all General Obligations (as defined below).
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Upon any distribution of our assets due to any dissolution, winding up, liquidation or reorganization, the holders of Senior Indebtedness will first be entitled to receive payment in full of all amounts due or to become due before the holders of the Subordinated Debt Securities will be entitled to receive any payment in respect of the Subordinated Debt Securities. If upon any such payment or distribution of assets, after giving effect to such subordination provisions in favor of the holders of Senior Indebtedness, (i) there remain any amounts of cash, property or securities available for payment or distribution in respect of the Subordinated Debt Securities (“Excess Proceeds”) and (ii) if, at such time, any creditors in respect of General Obligations have not received payment in full of all amounts due or to become due on or in respect of such General Obligations, then such Excess Proceeds will first be applied to pay or provide for the payment in full of such General Obligations before any payment or distribution may be made in respect of the Subordinated Debt Securities.
Nothing in the Indentures or in any Subordinated Debt Security is intended to impair our obligations, which are absolute and unconditional, to make payments of the principal of, premium, if any, or interest on the Subordinated Debt Securities as and when such Subordinated Debt Securities become due and payable in accordance with their terms.
By reason of the subordination in favor of the holders of Senior Indebtedness, in the event of a distribution of assets upon any dissolution, winding up, liquidation or reorganization, our creditors who are not holders of Senior Indebtedness or the Subordinated Debt Securities may recover less, proportionately, than holders of Senior Indebtedness and may recover more, proportionately, than holders of the Subordinated Debt Securities.
Subject to payment in full of all Senior Indebtedness, the holders of Subordinated Debt Securities will be subrogated to the rights of the holders of Senior Indebtedness to receive payments or distributions of cash, property or our securities applicable to Senior Indebtedness. Subject to payment in full of all General Obligations, the holders of the Subordinated Debt Securities will be subrogated to the rights of the creditors in respect of General Obligations to receive payments or distributions of cash, property or our securities applicable to such creditors in respect of General Obligations.
“Senior Indebtedness” for purposes of a Subordinated Indenture means all indebtedness (present or future) created, incurred, assumed or guaranteed by us (and all renewals, extensions or refundings thereof), unless the instrument under which such indebtedness is created, incurred, assumed or guaranteed provides that such indebtedness is not senior or superior in right of payment to the Subordinated Debt Securities.
The term “indebtedness for money borrowed” as used in this prospectus includes, without limitation, any obligation of, or any obligation guaranteed by us for the repayment of borrowed money, whether or not evidenced by bonds, debentures, notes or other written instruments, and any deferred obligation for the payment of the purchase price of property or assets. A Subordinated Indenture would not limit our issuance of additional Senior Indebtedness.
The Subordinated Debt Securities will rank senior in right of payment to our Junior Subordinated Indebtedness upon any distribution of our assets due to any dissolution, winding up, liquidation or reorganization, to the extent provided in the instruments creating our Junior Subordinated Indebtedness. “Junior Subordinated Indebtedness” is the principal of, premium, if any, and interest on:
all of our indebtedness for money borrowed whether outstanding on the date of the execution of a Subordinated Indenture or created, assumed or incurred after that date that is by its terms subordinated to the Subordinated Debt Securities; and
any deferrals, renewals or extensions of any of such Junior Subordinated Indebtedness.
Unless otherwise specified in the prospectus supplement relating to a particular series of Subordinated Debt Securities offered thereby, the term “General Obligations” means all obligations to make payment on account of claims in respect of derivative products such as interest and foreign exchange rate contracts, commodity contracts and similar arrangements, other than:
obligations on account of Senior Indebtedness;
obligations on account of indebtedness for money borrowed ranking equal with or subordinate to the Subordinated Debt Securities; and
obligations which by their terms are expressly stated not to be senior in right of payment to the Subordinated Debt Securities or to rank equally with the Subordinated Debt Securities.
The Trustee or the holders of Subordinated Debt Securities may accelerate the maturity of the Subordinated Debt Securities if an Event of Default has occurred and is continuing, in accordance with the terms of the Indenture, provided that all obligations in respect of Senior Indebtedness then or thereafter due or declared to be due shall first be paid in full before the Trustee of the holders of Subordinated Debt Securities are entitled to receive any payment from us of principal of or interest on the Subordinated Debt Securities.
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Defeasance and Covenant Defeasance
To the extent stated in the prospectus supplement, we may elect to apply the provisions relating to defeasance and discharge of indebtedness, or to defeasance of certain restrictive covenants in the Indentures, to the Debt Securities of any series.
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DESCRIPTION OF CAPITAL STOCK
The following descriptions set forth certain general terms of our common stock and our preferred stock. While we believe that the following descriptions cover the material terms of our capital stock, the descriptions may not contain all of the information that is important to you. The descriptions set forth below are not complete and are subject to, and qualified in their entirety by, our amended certificate of incorporation (including the Certificate of DesignationIncorporation (including applicable Certificates of Series A Preferred StockDesignation) and the Amended Certificate of Designation of 105,875 Shares of 5% Series B Cumulative Convertible Perpetual Preferred Stock incorporated therein, the “Charter”), our amended and restated by-laws (“By-laws”), the Delaware General Corporation Law (“DGCL”), and, for any other series of preferred stock, the certificate of designations relating to such particular series of preferred stock. The particular terms of any series of preferred stock offered by any prospectus supplement and the extent, if any, to which these general provisions may apply to that series of preferred stock will be described in the prospectus supplement relating to that series of preferred stock. Copies of the Charter and the By-laws have been filed with the SEC. You are urged to read the Charter and the By-laws in their entirety.
By-laws.

Authorized and Outstanding Capital Stock

Our

Under our Certificate of Incorporation, we are authorized capital stock consists of 75,000,000to issue 337,500,000 shares of common stock, par value $0.0001 per share, and 250,000 shares of preferred stock, par value $0.01 per share, issuable in one or more series designated by our board of directors, of which 250,000105,875 shares of our preferred stock have been designated as 5% Series B Cumulative Convertible Perpetual Preferred Stock (“Series B preferred stock”Preferred Stock” and, such shares, the “Series B Preferred Shares”). On October 31, 2016, 35,174,424Pursuant to our Certificate of Incorporation, our undesignated shares of preferred stock include all of our shares of preferred stock that were previously designated as Series C Convertible Preferred Stock and Series D Convertible Preferred Stock, as all such shares have been retired and therefore have the status of authorized and unissued shares of preferred stock undesignated as to series.

As of June 24, 2020, 217,907,336 shares of our common stock were issued and outstanding and 64,020 shares of our Series B preferred stockPreferred Stock were issued and outstanding. No other shares of our preferred stock arewere issued and outstanding. There are 1,000,000 Series 1 preferred

As of June 24, 2020, we were obligated, if and when the holders exercise their conversion rights, to issue approximately 37,837 shares of our Canadian subsidiary, FCE FuelCell Energy, Ltd., issued and outstanding and convertible into sharescommon stock upon conversion of FuelCell Energy, Inc. common stock.

In addition, asthe Series B Preferred Stock.

As of October 31, 2016,June 24, 2020, there were outstanding options to purchase 246,92323,891 shares of our common stock under our equity incentive plans, 990,035plan, 697,889 shares of our common stock were reserved for issuance upon vesting of outstanding restricted stock units granted under our equity incentive plan, 3,490,197 shares of our common stock were available for future issuancegrants of awards under our equity incentive plans, 62,226plan, 32,047 shares of our common stock were availablereserved for future issuance under our employee stock purchase plan, and 11,706,000500,000 shares of our common stock were availablereserved for futurepotential issuance under warrants. In addition, asin settlement of October 31, 2016, we were obligated, if and when the holder exercises its conversion rights,restricted stock units to issue approximately 1,042,000 shares ofbe granted to our common stock upon conversion of the Series 1 preferred shares. Chief Executive Officer.

As of October 31, 2016, Series B Preferred Stock may be convertedJune 24, 2020, the selling stockholders held warrants to 454,043purchase up to 8,000,000 shares of our common stock. The exercise price of these warrants is $0.242 per share, and the expiration date of such warrants is November 22, 2028.

As of December 30, 2016,June 24, 2020, there were 169also other outstanding warrants (the Series C Warrants dated May 3, 2017) to purchase up to 964,114 shares of our common stock. The exercise price of these warrants is $19.20, and the expiration date of such warrants is May 2, 2022.

As of June 24, 2020, there were 110 holders of record of our common stock.  This does not include the number of persons whose stock is in nominee or “street” name accounts through brokers.


Common Stock

Voting Rights

Rights.The holders of our common stock have one vote per share. Holders of our common stock are not entitled to vote cumulatively for the election of directors. Generally, all matters to be voted on by shareholdersstockholders (including the election of directors in uncontested elections) must be approved by a majority of the votes entitled to beproperly cast on the matter at a meeting at which a quorum is present, by all shares of our common stock present in person or represented by proxy, voting together as a single class, subject to any voting rights granted to holders of any then outstandingthen-outstanding preferred stock.stock, which rights are described below under “Series B Preferred Stock.” A plurality voting standard applies in contested director elections (i.e., when the number of nominees for election as directors exceeds the number of directors to be elected at such meeting).
Dividends

Dividends.Holders of our common stock will share ratably in any dividends declared by theour board of directors, subject to the preferential rights of any of our preferred stock then outstanding.outstanding, which rights are described below under “Series B Preferred Stock.” Dividends consisting of shares of our common stock may be paid to holders of shares of our common stock. We have never paid a cash dividend on our common stock and do not anticipate paying any cash dividends on our common stock in the foreseeable future.

Other Rights

Liquidation Rights.In the event of our liquidation, dissolution or winding up, after payment of liabilities and liquidation preferences on any of our preferred stock then outstanding (which is described below under “Series B Preferred Stock”), the holders of shares of our common stock are entitled to share ratably in all assets available for distribution.

Other Rights. Holders of shares of our common stock (solely in their capacity as holders of shares of our common stock) have no preemptive rights or rights to convert their shares of our common stock into any other securities. There are no redemption or sinking fund provisions applicable to theour common stock.

Preferred Stock
This section describes the general terms of our preferred stock, $0.01 par value, to which any prospectus supplement may relate. Certain terms of any series of our preferred stock offered by any prospectus supplement will be described in such prospectus supplement. If so indicated in the prospectus supplement, the terms of that series may differ from the terms described below.

Listing on The following description of the terms of our preferredNasdaq Global Market.  Our common stock is a summary. You should refer to our Charterlisted on The Nasdaq Global Market under the symbol “FCEL”.

Transfer Agent and any certificate of amendment to our Charter or certificate of designations filed with the SEC in connection with the offering of our preferred stockRegistrar.  The transfer agent and registrar for a full description of the terms of the preferred stock.

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Under our Charter, our board of directors has the authority, without further shareholder action, to issue from time to time, preferred stock in one or more series and for such consideration as may be fixed from time to time by our board of directors. Our board also has the authority to fix and determine, in the manner provided by law, the relative rights and preferences of the shares of any series so established, such as dividend and voting rights. Our Charter authorizes 250,000 shares of preferred stock. Prior to the issuance of each series of preferred stock, our board will adopt resolutions creating and designating the series as a series of preferred stock. The board of directors may, without shareholder approval, issue preferred stock with voting and other rights that could adversely affect the voting power and other rights of the holders of our common stock and could have anti-takeover effects.
Our preferred stock will have the dividend, liquidation, redemption, voting and conversion rights set forth below unless otherwise specified in the applicable prospectus supplement. You should read the prospectus supplement relating to the particular series of preferred stock offered thereby for specific terms, including:
the number of shares to constitute such series and the distinctive designation of such series;
the dividend rate on the shares of such series and preferences, if any, and the special and relative rights of such shares of such series as to dividend;
whether or not the shares of such series shall be redeemable, and, if redeemable, the price, terms and manner of redemption;
the preferences, if any, and the special and relative rights o the shares of such series upon liquidation;
whether or not the shares of such series shall be subject to the operation of a sinking or purchase fund and, if so, the terms and provisions of such fund;
whether or not the shares of such series shall be convertible into shares of any other class or of any other series of the same or any other class of stock and, if so, the conversion price or ratio and other conversion rights;
the conditions under which the shares of such series shall have separate voting rights or no voting rights; and
Such other designations, preferences and relative, participating, optional or other special rights and qualifications, limitations or restrictions of such series of preferred stock.
Unless otherwise specified in the applicable prospectus supplement, the shares of each series of preferred stock will upon issuance rank equally in all respects with each other then outstanding series of preferred stock.
Preferred stock could be issued quickly with terms that could delay or prevent a change of control or make the removal of management more difficult. Additionally, the issuance of preferred stock may decrease the market price of our common stock and may adversely affect the voting and other rights of the holders of our common stock.
Ranking
Any series of our preferred stock will, with respect to dividend rights and rights on liquidation, winding up or dissolution, rank:
senior to all classes of our common stock and to all equity securities issued by us, the terms of which specifically provide that the equity securities will rank junior to that preferred stock;
equally with all equity securities issued by us, the terms of which specifically provide that the equity securities will rank equally with that preferred stock; and
junior to all equity securities issued by us, the terms of which specifically provide that the equity securities will rank senior to that preferred stock.
Dividends
The holders of our preferred stock will be entitled to receive, when, as and if declared by our board of directors, dividends at such rates and on such dates as will be specified in the applicable prospectus supplement. Such rates may be fixed or variable or both. If variable, the formula used for determining the dividend rate for each dividend period will be specified in the applicable prospectus supplement. Dividends will be payable to the holders of record as they appear on our stock books on such record dates as will be fixed by our board. Dividends may be paid in the form of cash, preferred stock (of the same or a different series) or our common stock, in each case as specified in the applicable prospectus supplement.
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Dividends on any series of our preferred stock may be cumulative or noncumulative, as specified in the applicable prospectus supplement. If the dividends on a series of our preferred stock are noncumulative (“Noncumulative Preferred Stock”), and our board of directors fails to declare a dividend payable on a dividend payment date, then the holders of such preferred stock will have no right to receive a dividend in respect to the dividend period relating to such dividend payment date, and we will not be obligated to pay the dividend accrued for such period, whether or not dividends on such preferred stock are declared or paid on any future dividend payment dates. Dividends on shares of any cumulative series of preferred stock (“Cumulative Preferred Stock”) shall accumulate from and after the day on which such shares are issued, but arrearages in the payment thereof shall not bear interest.
If we have not declared and paid or set apart when due all accrued dividends on each series of our preferred stock through the last preceding dividend date of each such series, we may not declare or pay any dividends on, or make other distributions on, our common stock other than a dividend payable in our common stock. No restriction applies to our repurchase or redemption of our capital stock while there is any arrearage in the payment or dividends or any applicable sinking fund installments.
Redemption
A series of our preferred stock may be redeemable, in whole or in part, at our option, and may be subject to mandatory redemption pursuant to a sinking fund or otherwise, in each case upon terms, at the times and at the redemption prices specified in the applicable prospectus supplement. Redeemed shares of our preferred stock will become authorized but unissued shares of preferred stock that we may issue in the future.
The terms and conditions under which all or any part of any series of our preferred stock may be redeemed will be established by our board of directors before we issue such series of preferred stock.  All shares of our preferred stock that we redeem, or which have been surrendered for conversion or exchange or for cancellation pursuant to any sinking or purchase fund, will return to the status of authorized but unissued shares.
Conversion Rights
The prospectus supplement relating to a series of convertible preferred stock will describe the terms on which shares of such series are convertible into our common stock.
Rights Upon Liquidation
Unless the applicable prospectus supplement states otherwise, if we voluntarily or involuntarily liquidate, dissolve or wind up our business, the holders of our preferred stock will be entitled to receive out of our assets available for distribution to stockholders, before any distribution of assets is made to holders of our common stock or any other class or series of shares ranking junior to such preferred stock upon liquidation, liquidating distributions in the amount of the liquidation preference of such preferred stock plus accrued and unpaid dividends (which will not, if such preferred stock is Noncumulative PreferredAmerican Stock include any accumulation in respect of unpaid dividends for prior dividend periods). If we voluntarily or involuntarily liquidate, dissolve or wind up our business and the amounts payable with respect to our preferred stock of any series and any of our other securities ranking equal as to any such distribution are not paid in full, the holders of such preferred stock and of such other shares will share ratably in any such distribution of our assets in proportion to the full respective preferential amounts to which they are entitled. After payment of the full amount of the liquidating distribution to which they are entitled, the holders of our preferred stock of any series will not be entitled to any further participation in any distribution of our assets.
Voting Rights
Except as described in this section or in the applicable prospectus supplement, or except as expressly required by applicable law, the holders of our preferred stock will not be entitled to vote. If the holders of a series of our preferred stock are entitled to vote and the applicable prospectus supplement does not state otherwise, each such share will be entitled to one vote on matters on which holders of such series of preferred stock are entitled to vote. For any series of our preferred stock having one vote per share, the voting power of such series, on matters on which holders of such series and holders of other series of our preferred stock are entitled to vote as a single class, will depend on the number of shares in such series, not the aggregate stated value, liquidation preference or initial offering price of the shares of such series of preferred stock.
Transfer & Trust Company, New York.

Series B Preferred Stock

On November 11, 2004, we entered into a purchase agreement with Citigroup Global Markets Inc., RBC Capital Markets Corporation, Adams Harkness, Inc., and Lazard Freres & Co., LLC (the “Initial Purchasers”) for the private placement under Rule 144A of up to 135,000 shares of our 5% Series B Cumulative Convertible Perpetual Preferred Stock (Liquidation Preference $1,000). On November 17, 2004 and January 25, 2005, we closed on the sale of 100,000 shares and 5,875 shares, respectively, of Series B preferred stock to the Initial Purchasers.
As of October 31, 2016, there were 250,000 preferred shares authorized, of which 250,000 shares were designated as Series B preferred shares, and 64,020 Series B preferred shares were issued and outstanding.
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The following is a summary of certain provisions of our Series B preferred stock. The resale of the shares of our Series B preferred stock and the resale of the shares of our common stock issuable upon conversion of the shares of our Series B preferred stock are covered by a registration rights agreement.
Ranking

Ranking.Shares of our Series B preferred stockPreferred Stock rank with respect to dividend rights and rights upon our liquidation, winding up or dissolution:

·senior to shares of our common stock;

·junior to our debt obligations; and

·effectively junior to our subsidiaries’ (i) existing and future liabilities and (ii) capital stock held by others.

Dividends

Dividends.The Series B preferred stockPreferred Stock pays cumulative annual dividends of $50$50.00 per share, which are payable quarterly in arrears on February 15, May 15, August 15 and November 15. Dividends will be paid on the basis of a 360-day year consisting of twelve 30-day months. Dividends on the shares of our Series B preferred stock will accumulate and beare cumulative from the date of original issuance. AccumulatedUnpaid accumulated dividends on the shares of our Series B preferred stock willdo not bear any interest.

The dividend rate on the Series B preferred stock is subject to upward adjustment as set forth in the certificateAmended Certificate of designation ofDesignation for the Series B preferred stockPreferred Stock (the “Series B Certificate of Designation”) if we fail to pay, or to set apart funds to pay, dividends on the shares of our Series B preferred stock for any quarterly dividend period. The dividend rate on the Series B preferred stockPreferred Stock. The dividend rate is also subject to upward adjustment as set forth in the registration rights agreementRegistration Rights Agreement entered into with the Initial Purchasersinitial purchasers of the Series B Preferred Stock (the “Registration Rights Agreement”) if we fail to satisfy our registration obligations with respect to the Series B preferred stockPreferred Stock (or the underlying common shares) set forth inunder the Registration Rights Agreement.

No dividends or other distributions may be paid or set apart for payment uponon our common sharesstock (other than a dividend payable solely in shares of a like or junior ranking), nor may any stock junior to or on parity with the Series B Preferred Stock be redeemed, purchased or otherwise acquired for any consideration (or any money paid to or made available for a sinking fund for such stock) by us or on our behalf  (except by conversion into or exchange for shares of a like or junior ranking), unless all accumulated and unpaid Series B Preferred Stock dividends have been paid or funds or shares of common stock therefore have been set aside for payment of accumulated and unpaid Series B preferred stockPreferred Stock dividends.


The dividend on the Series B preferred stockPreferred Stock may be paid in cash;cash or, at the option of the holder, in shares of our common stock, which will be registered pursuant to a registration statement to allow for the immediate sale of these shares of common sharesstock in the public market. Dividends

Liquidation.   The holders of $3.2 million were paid in each of the years ended October 31, 2016, 2015 and 2014. There were no cumulative unpaid dividends as of October 31, 2016.

Liquidation
The Series B preferred stock stockholdersPreferred Shares are entitled to receive, in the event that we areour Company is liquidated, dissolved or wound up, whether voluntarily or involuntarily, $1,000$1,000.00 per share plus all accumulated and unpaid dividends up to but excluding the date of that liquidation, dissolution, or winding up (“Liquidation(the “Liquidation Preference”). Until the holders of Series B preferred stockPreferred Shares receive their Liquidation Preference in full, no payment will be made on any junior shares, including shares of our common stock. After the Liquidation Preference is paid in full, holders of the Series B preferred stockPreferred Stock will not be entitled to receive any further distribution of our assets. As of October 31, 2016,April 30, 2020, the Series B preferred stockPreferred Stock had a Liquidation Preference of $64.0 million.

Conversion Rights

Rights.Each Series B Preferred Stock shareShare may be converted at any time, at the option of the holder, into 7.09220.5910 shares of our common stock (which is equivalent to an initial conversion price of $141.00$1,692 per share) plus cash in lieu of fractional shares. The conversion rate is subject to adjustment upon the occurrence of certain events, as described below, but willin the Series B Certificate of Designation. The conversion rate is not be adjusted for accumulated and unpaid dividends. If converted, holders of Series B Preferred StockShares do not receive a cash payment for all accumulated and unpaid dividends; rather, all accumulated and unpaid dividends are cancelled.
canceled.

We may, at our option, cause shares of Series B Preferred StockShares to be automatically converted into that number of shares of our common stock that are issuable at the then prevailingthen-prevailing conversion rate. We may exercise our conversion right only if the closing price of our common stock exceeds 150% of the then prevailingthen-prevailing conversion price ($141.001,692 per share as of October 31, 2016)April 30, 2020) for 20 trading days during any consecutive 30 trading day period, as described in the Series B Certificate of Designation.

If the holders of Series B Preferred Stock elect to convert their shares in connection with certain fundamental changes, (as described below andas defined in the Series B Certificate of Designation),Designation, we will in certain circumstances increase the conversion rate by a number of additional shares of common stock upon conversion or, in lieu thereof, we may in certain circumstances elect to adjust the conversion rate and related conversion obligation so that shares of our Series B Preferred Stock are converted into shares of the acquiring or surviving company, in each case as described in the Series B Certificate of Designation.

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The adjustment of the conversion price is to prevent dilution of the interests of the holders of the Series B Preferred Stock from the following:

Issuancescertain dilutive transactions with holders of common stock as a dividend or distribution to holders or our common stock;
Common stock share splits or share combinations;
Issuances to holders of our common stock of any rights, warrants or options to purchase our common stock for a period of less than 60 days; and
Distributions of assets, evidences of indebtedness or other property to holders of our common stock.
Redemption

Redemption.We do not have the option to redeem the shares of Series B Preferred Stock. However, holders of the Series B Preferred StockShares can require us to redeem all or part of their shares at a redemption price equal to the Liquidation Preference of the shares to be redeemed in the case of a “fundamental change.”change” (as described in the Series B Certificate of Designation). A fundamental change will be deemed to have occurred if any of the following occurs:

·any “person” or “group” is or becomes the beneficial owner, directly or indirectly, of 50% or more of the total voting power of all classes of our capital stock then outstanding and normally entitled to vote in the election of directors;

·during any period of two consecutive years, individuals who at the beginning of such period constituted the board of directors (together with any new directors whose election to our board of directors or whose nomination for election by the stockholders was approved by a vote of 662/3% of our directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the directors then in office;

·the termination of trading of our common stock on the Nasdaq and such shares are not approved for trading or quoted on any other U.S. securities exchange or established over-the-counter trading market in the U.S.; or

·we consolidate with or merge with or into another person or another person merges with or into our Company or the sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all of our assets and certain of our subsidiaries, taken as a whole, to another person and, in the case of any such merger or consolidation, our securities that are outstanding immediately prior to such transaction and which represent 100% of the aggregate voting power of our voting stock are changed into or exchanged for cash, securities or property, unless pursuant to the transaction such securities are changed into securities of the surviving person that represent, immediately after such transaction, at least a majority of the aggregate voting power of the voting stock of the surviving person.


any “person” or “group” is or becomes the beneficial owner, directly or indirectly, of 50% or more of the total voting power of all classes of our capital stock then outstanding and normally entitled to vote in the election of directors;
during any period of two consecutive years, individuals who at the beginning of such period constituted the Board of Directors (together with any new directors whose election by our Board of Directors or whose nomination for election by our shareholders was approved by a vote of two-thirds of our directors then still in office who were either directors at the beginning of such period or whose election of nomination for election was previously so approved) cease for any reason to constitute a majority of our directors then in office;
the termination of trading of our common stock on the NASDAQ Stock Market and such shares are not approved for trading or quoted on any other U.S. securities exchange; or
we consolidate with or merge with or into another person or another person merges with or into us or the sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all of our assets and certain of our subsidiaries, taken as a whole, to another person and, in the case of any such merger or consolidation, our securities that are outstanding immediately prior to such transaction and which represent 100% of the aggregate voting power of our voting stock are changed into or exchanged for cash, securities or property, unless pursuant to the transaction such securities are changed into securities of the surviving person that represent, immediately after such transaction, at least a majority of the aggregate voting power of the voting stock of the surviving person.

Notwithstanding the foregoing, holders of shares of Series B Preferred StockShares will not have the right to require us to redeem their shares if:

·the last reported sale price of shares of our common stock for any five trading days within the 10 consecutive trading days ending immediately before the later of the fundamental change or its announcement equaled or exceeded 105% of the conversion price of the shares of our common stock for any five trading days within the 10 consecutive trading days ending immediately before the later of the fundamental change or its announcement equaled or exceeded 105% of the conversion price of the Series B Preferred Shares immediately before the fundamental change or announcement;

·at least 90% of the consideration (excluding cash payments for fractional shares and in respect of dissenters’ appraisal rights) in the transaction or transactions constituting the fundamental change consists of shares of capital stock traded on a U.S. national securities exchange or quoted on the Nasdaq, or which will be so traded or quoted when issued or exchanged in connection with a fundamental change, and as a result of the transaction or transactions, shares of Series B Preferred Stock become convertible into such publicly traded securities; or

·in the case of a fundamental change event described in the fourth bullet above, the transaction is affected solely to change our jurisdiction of incorporation.

Moreover, we will not be required to redeem any Series B Preferred Stock immediately beforeShares upon the fundamental change or announcement;

at least 90%occurrence of the consideration (excluding cash payments for fractional shares) and, in respect of dissenters’ appraisal rights, if the transaction constituting the fundamental change consists of shares of capital stock traded on a U.S. national securities exchange, or which will be so traded or quoted when issued or exchanged in connection with a fundamental change and asif a result ofthird party makes an offer to purchase the transaction, shares of Series B Preferred Stock become convertible into such publicly traded securities; or
Shares in the case of fundamental change eventmanner, at the price, at the times and otherwise in compliance with the fourth bulletrequirements set forth above the transaction is affected solely to change our jurisdiction of incorporation.
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and such third party purchases all Series B Preferred Shares validly tendered and not withdrawn.

We may, at our option, elect to pay the redemption price in cash, or, in shares of our common stock valued at a discount of 5% from the market price of shares of our common stock, or in any combination thereof. Notwithstanding the foregoing, we may only pay such redemption price in shares of our common stock that are registered under the Securities Act of 1933, as amended (the “Securities Act”), and eligible for immediate sale in the public market by non-affiliates of theour Company.

Voting Rights

Rights.Holders of Series B Preferred Stock currently have no voting rights; however, holders may receive certain voting rights, as described in the Series B Certificate of Designation, if  (1)(a) dividends on any shares of Series B Preferred Stock,Shares, or any other class or series of stock ranking on a parity with the Series B Preferred Stock with respect to the payment of dividends, shall be in arrears for dividend periods, whether or not consecutive, forcontaining in the aggregate a number of days equivalent to six calendar quarters or (2)(b) we fail to pay the redemption price, plus accrued and unpaid dividends, if any, on the redemption date for shares of Series B Preferred StockShares following a fundamental change.

So long as any shares of Series B Preferred StockShares remain outstanding, we will not, without the consent of the holders of at least two-thirds of the shares of Series B Preferred StockShares outstanding at the time (voting separately as a class with all other series of preferred stock, if any, on parity with our Series B Preferred Stock upon which like voting rights have been conferred and are exercisable) issue or increase the authorized amount of any class or series of shares ranking senior to the outstanding shares of the Series B Preferred StockShares as to dividends or upon liquidation. In addition, we will not, subject to certain conditions, amend, alter or repeal provisions of our Charter,Certificate of Incorporation, including the certificate of designation relating to the Series B Preferred Stock,Certificate of Designation, whether by merger, consolidation or otherwise, so as to adversely amend, alter or affect any power, preference or special right of the outstanding shares of Series B Preferred StockShares or the holders thereof without the affirmative vote of not less than two-thirds of the issued and outstanding Series B Preferred Stock shares.Shares.


Series 1 Preferred Shares
In

Warrants Issued in Connection with the Credit Facility

The following summary of the terms of the warrants does not purport to be complete and is qualified in its entirety by reference to the full text of the form of warrant, which is incorporated herein by reference.

This prospectus relates to the offer and sale from time to time by the selling stockholders named in this prospectus of up to 17,396,320 shares of our common stock, of which (i) 8,000,000 shares are issuable upon the exercise of outstanding warrants that were issued in connection with and pursuant to our acquisitionCredit Facility and (ii) 9,396,320 shares were issued upon the cashless exercise of Global Thermoelectric Inc. (“Global”)certain additional warrants that were issued in connection with and pursuant to our Credit Facility. The outstanding warrants are exercisable to purchase up to 8,000,000 shares of our common stock at an initial exercise price of $0.242 per share.

The warrants have an eight-year term from the date of issuance, are and were exercisable immediately beginning on the date of issuance, and include provisions permitting cashless exercises in certain circumstances. The outstanding warrants were issued on November 2003,22, 2019.

A warrant holder will not have the right to exercise any portion of a warrant if the holder, together with its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately after the exercise; provided, however, that the holder may increase or decrease this limitation at any time, although any increase shall not be effective until the 61st day following the notice of increase. Except as otherwise expressly provided in the warrants, prior to the exercise of a warrant, the holder of such warrant will not have any of the rights of a stockholder of the Company, and will not be entitled to, among other things, vote or receive dividend payments or similar distributions on the shares of common stock purchasable upon exercise of such warrant.

The warrants contain customary provisions regarding adjustment to their exercise prices and the type or class of security issuable upon exercise, including, without limitation, adjustments as a result of us undertaking or effectuating (a) a stock dividend or dividend of other securities or property, (b) a stock split, subdivision or combination, (c) a reclassification, (d) the distribution to substantially all of the holders of our common stock (or other securities issuable upon exercise of a warrant) of rights, options or warrants entitling such holders to subscribe for or purchase common stock (or other securities issuable upon exercise of a warrant) at a price per share that is less than the average of the closing sales price per share of our common stock for the 10 consecutive trading days ending on and including the trading day before such distribution is publicly announced, and (e) a Fundamental Transaction (as defined below) or Change of Control (as defined in the Credit Facility), as explained further below.

If, while a warrant or any portion thereof is outstanding and unexpired, there is (a) a reorganization (other than a combination, reclassification, exchange or subdivision of shares otherwise provided for in such warrant), (b) a merger or consolidation of the Company with or into another corporation in which we acquiredare not the surviving entity, or a reverse triangular merger in which we are the surviving entity but the shares of our capital stock outstanding immediately prior to the merger are converted by virtue of the merger into other property, whether in the form of securities, cash, or otherwise, or (c) a sale or transfer of our properties and assets as, or substantially as, an entirety to any other person (any such event, a “Fundamental Transaction”), then, except in the event of a Fundamental Transaction that constitutes a Change of Control, as part of such Fundamental Transaction, the successor corporation or entity must assume in writing all of the obligations of Global pursuant to its outstanding 1,000,000 Series 2 Preferred Shares (“Series 2 Preferred Shares”) which continued to be held by Enbridge, Inc. With the sale of Global in May of 2004, the Series 2 Preferred Shares were cancelled, and replaced with substantially equivalent Series 1 Preferred Shares (“Series 1 Preferred Shares”) issued by FCE FuelCell Energy Ltd. (“FCE Ltd”).

On March 31, 2011, the Company entered into an agreement with Enbridge, Inc. (“Enbridge”) to modifyunder such warrant, such that the Class A Cumulative Redeemable Exchangeable Preferred Shares agreement (the “Series 1 preferred share agreement”) between FCE Ltd, a wholly-owned subsidiary of FuelCell Energy, and Enbridge, the sole holder of such warrant shall thereafter be entitled to receive, upon exercise of such warrant, the Series 1 preferred shares. Consistentshares of stock or other securities or property of the successor corporation or entity that the holder would have been entitled to receive if such warrant had been exercised immediately prior to such Fundamental Transaction.

Notwithstanding the foregoing, at the request of a holder of a warrant delivered at any time during the period commencing on the earliest to occur of (A) the public disclosure of (1) any Fundamental Transaction in which the successor corporation or entity is not a publicly traded entity whose common equity or ordinary shares, as the case may be, is quoted on or listed for trading on an Eligible Board or Market (as defined in the warrant) or (2) any Change of Control, as applicable, (B) the consummation of any such Fundamental Transaction or any Change of Control, and (C) such holder first becoming aware of any such Fundamental Transaction or any Change of Control, and ending on the date that is 90 days after the public disclosure of the consummation of such Fundamental Transaction or Change of Control, the Company or the successor corporation or entity (as the case may be) must purchase such warrant from such holder. The price payable to a holder for a warrant with respect to which notice is delivered in accordance with the previous Series 1 preferred share agreement, FuelCell continues to guaranteepreceding sentence is an amount equal to: (i) in the return of principal and dividend obligations of FCE Ltd.event that such payment date is on or prior to the Series 1 preferred shareholders under the modified agreement.

The modified termssecond anniversary of the Series 1 Preferred Shares provides for paymentsdate of (i) annualissuance of such warrant, the Black Scholes Value (as defined in the warrant) of the unexercised portion of such warrant, or (ii) in the event that such payment date is after the second anniversary of the date of issuance of such warrant, the difference of (x) the product of (I) the remaining amount of shares of common stock issuable upon the exercise of such warrant, multiplied by (II) the consideration per share of common stock paid or payable to each holder of common stock in connection with such Fundamental Transaction or Change of Control, minus (y) the aggregate exercise price of such warrant.


In addition, the warrants provide that, if while a warrant, or any portion thereof, remains outstanding and unexpired, common stockholders shall have received, or become entitled to receive, without payment therefor, other or additional stock or other securities or property (other than cash) of the Company by way of dividend, paymentsthen such warrant shall represent the right to acquire, in addition to the number of Cdn. $500,000shares of the security receivable upon exercise of such warrant, and (ii) annual returnwithout payment of capital payments of Cdn. $750,000. These payments commenced on March 31, 2011 and will end on December 31, 2020. Additional dividends accrue on cumulative unpaid dividends at a 1.25% quarterly rate, compounded quarterly, until payment thereof. On December 31, 2020any additional consideration therefor, the amount of all accrued and unpaid dividends on the Series 1 Preferred Shares of Cdn. $21.1 million and the balancesuch other or additional stock or other securities or property (other than cash) of the principal redemption price of Cdn. $4.4 million shall be paidCompany that such holder would have been entitled to as if such warrant had been exercised (without regard to any limitations on exercise set forth therein).

In addition, we have granted to the holders of the Series 1 Preferred Shares. FCE Ltd.warrants certain registration rights. Specifically, we have agreed to use commercially reasonable efforts to effect, as soon as practicable after issuance of the warrants, but in no event later than March 16, 2020 (which date has been effectively waived by the optionholders of making dividend payments in the formwarrants), the registration of resales of all shares of common stock or cash under the Series 1 Preferred Shares provisions.

The Company assessed the accounting guidance related to the classificationissuable upon exercise of the preferred shares afterwarrants on a delayed or continuous basis at then-prevailing market prices.

We have agreed to keep the modification on March 31, 2011 and concluded thatregistration statement effective until the preferred shares should be classifiedearlier of (i) the date as a mandatorily redeemable financial instrument, and presented as a liability onof which the consolidated balance sheet.

The Company made its scheduled payments of Cdn. $1.3 million during each of fiscal years 2016, 2015 and 2014, under the terms of the modified agreement, including the recording of interest expense, which reflects the fair value discount of approximately Cdn. $2.4 million, Cdn. $2.3 million and Cdn. $2.1 million, respectively.
In addition to the above, the significant terms of the Series 1 Preferred Shares include the following:
Voting Rights — The holders of the Series 1 Preferred Shares are not entitled to any voting rights.
Dividends — Dividend payments can be made in cash orwarrants may sell all of the shares of common stock issuable upon exercise of the Company, atwarrants without restriction pursuant to Rule 144 as promulgated under the optionSecurities Act (including, without limitation, volume restrictions) and without the need for current public information required by Rule 144(c)(1) (or Rule 144(i)(2), if applicable) as promulgated under the Securities Act or (ii) the date on which the holders shall have sold all of FCE Ltd, and ifthe shares of common stock is issued it may be unregistered. If FCE Ltd elects to make such payments by issuing common stockissuable upon exercise of the Company, the number of common shares is determined by dividing the cash dividend obligation by 95% of the volume weighted average price in US dollars at which board lots of the common shares have been traded on NASDAQ during the 20 consecutive trading days preceding the end of the calendar quarter for which such dividend in common shares is to be paid converted into Canadian dollars using the Bank of Canada’s noon rate of exchange on the day of determination.
Redemption — The Series 1 Preferred Shares are redeemable by FCE Ltd for Cdn.$25 per share less any amounts paid as a return of capital in respect of such share plus all unpaid dividends and accrued interest. Holders of the Series 1 Preferred Shares do not have any mandatory or conditional redemption rights.
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Liquidation or Dissolution —warrants.

In the event ofthat (a) such a registration statement is not declared effective by the liquidationSEC on or dissolution of FCE Ltd,before March 16, 2020 (which date has been effectively waived by the holders of Series 1 Preferred Shares will be entitledthe warrants), including if a final prospectus is not filed under Rule 424(b) on or prior to receive Cdn.$25 per share lessthe fifth business day immediately following the effective date for such registration statement (an “Effectiveness Failure”), (b) on any amounts paid as a return of capital in respectday after the effective date of such share plus all unpaid dividends and accrued interest. The Company has guaranteed any liquidation obligations of FCE Ltd.

Exchange Rights — A holder of Series 1 Preferred Shares has the right to exchange such shares for fully paid and non-assessable common stock of the Company at the following exchange prices:
Cdn$1,664.52 per sharea registration statement, sales of common stock after July 31, 2015 until July 31, 2020;cannot be made pursuant to such registration statement or the prospectus contained therein is not available for use for any reason (a “Maintenance Failure”), or (c) such a registration statement is not effective for any reason or the prospectus contained therein is not available for use for any reason, and
at either (i) we fail to satisfy Rule 144(c)(1), or (ii) we have ever been an issuer under Rule 144(i)(1)(i) or become such an issuer in the future, and we shall fail to satisfy any time after July 31, 2020, atcondition set forth in Rule 144(i)(2) (a “Current Public Information Failure”), such that a price equalholder is unable to 95%sell all of the then current market price (in Cdn.$)shares of stock issuable upon exercise of the Company’s common stock at the time of conversion.
The exchange rates set forth above shall be adjusted if the Company: (i) subdivides or consolidates the common stock; (ii) pays a stock dividend; (iii) issues rights, options or other convertible securitieswarrant without restriction under Rule 144, then, as partial relief to the Company’s common stockholders enabling themholder for damages caused by the delay in, or reduction of, its ability to acquire common stock at a price less than 95%sell all of the then-current price; or (iv) fixes a record date to distribute to the Company’s common stockholderssuch shares (and not exclusive of any other classremedies available in equity), we shall pay to the holder $25,000 in cash on the date of securities, indebtednesssuch Effectiveness Failure, Maintenance Failure, or assets.
Current Public Information Failure, as applicable, and on every subsequent 30-day anniversary of (I) an Effectiveness Failure until such Effectiveness Failure is cured; (II) a Maintenance Failure until such Maintenance Failure is cured; and (III) a Current Public Information Failure until the earlier of (i) the date such Current Public Information Failure is cured and (ii) such time that such public information is no longer required pursuant to Rule 144 (in each case, pro-rated for periods totaling less than 30 days). In the event that any such payment is not timely made, such payment shall bear interest at the rate of 1.0% per month, prorated for partial months, until paid in full.

Anti-Takeover Provisions

Provisions of our CharterCertificate of Incorporation and By-Laws

By-laws.A number of provisions of our CharterCertificate of Incorporation and By-laws concern matters of corporate governance and the rights of shareholders.stockholders. Some of these provisions, including, but not limited to, the inability of shareholdersstockholders to take action by unanimous written consent, certain advance notice requirements for shareholderstockholder proposals and director nominations, supermajority voting provisions with respect to any amendment of voting rights provisions, the filling of vacancies on the board of directors by the affirmative vote of a majority of the remaining directors, and the ability of the board of directors to issue shares of preferred stock and to set the voting rights, preferences and other terms thereof without further shareholderstockholder action, may be deemed to have an anti-takeover effect and may discourage takeover attempts not first approved by the board of directors, including takeovers which shareholdersstockholders may deem to be in their best interests. If takeover attempts are discouraged, temporary fluctuations in the market price of shares of our common stock, which may result from actual or rumored takeover attempts, may be inhibited. These provisions, together with the ability of the board of directors to issue preferred stock without further shareholderstockholder action, could also delay or frustrate the removal of incumbent directors or the assumption of control by shareholders,stockholders, even if the removal or assumption would be beneficial to our shareholders.stockholders. These provisions could also discourage or inhibit a merger, tender offer or proxy contest, even if favorable to the interests of shareholders,stockholders, and could depress the market price of our common stock. The board of directors believes these provisions are appropriate to protect our interests and the interests of our shareholders.stockholders. The board of directors has no present plans to adopt any further measures or devices which may be deemed to have an “anti-takeover effect.”

Delaware Anti-Takeover Provisions

Provisions.We are subject to Section 203 of the DGCL,Delaware General Corporation Law (“DGCL”), which prohibits a publicly-held Delaware corporation from engaging in a “business combination,” except under certain circumstances, with an “interested shareholder”stockholder” for a period of three years following the date such person became an “interested shareholder”stockholder” unless:


before such person became an interested shareholder, the board of directors of the corporation approved either the business combination or the transaction that resulted in the interested shareholder becoming an interested shareholder;
upon the consummation of the transaction that resulted in the interested shareholder becoming an interested shareholder, the interested shareholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding shares held by directors who are also officers of the corporation and shares held by employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or
at or following the time such person became an interested shareholder, the business combination is approved by the board of directors of the corporation and authorized at an annual or special meeting of shareholders (and not by written consent) by the affirmative vote of the holders of at least 66 2/3% of the outstanding voting stock of the corporation which is not owned by the interested shareholder.
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before such person became an interested stockholder, the board of directors of the corporation approved either the business combination or the transaction that resulted in the interested stockholder becoming an interested stockholder;

upon the consummation of the transaction that resulted in the interested stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding (but not the outstanding voting stock owned by the interested stockholder) shares held by (i) directors who are also officers of the corporation and (ii) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

at or following the time such person became an interested stockholder, the business combination is approved by the board of directors of the corporation and authorized at an annual or special meeting of stockholders (and not by written consent) by the affirmative vote of the holders of at least 662∕3% of the outstanding voting stock of the corporation which is not owned by the interested stockholder.

The term “interested shareholder”stockholder” generally is defined as a person who, together with affiliates and associates, owns, or, within the three years prior to the determination of interested shareholderstockholder status, owned, 15% or more of a corporation’s outstanding voting stock. The term “business combination” includes mergers, asset or stock sales and other similar transactions resulting in a financial benefit to an interested shareholder.stockholder. Section 203 makes it more difficult for an “interested shareholder”stockholder” to effect various business combinations with a corporation for a three-year period. The existence of this provision would be expected to have an anti-takeover effect with respect to transactions not approved in advance by the board of directors, including discouraging attempts that might result in a premium over the market price for the shares of our common stock held by shareholders.stockholders. A Delaware corporation may “opt out” of Section 203 with an express provision in its original CharterCertificate of Incorporation or any amendment thereto. Our CharterCertificate of Incorporation does not contain any such exclusion.

Exclusive Forum

The

Our By-laws provide that unless we consent in writing to an alternative forum, a state court located within the State of Delaware (or, if no state court located within the State of Delaware has jurisdiction, the federal district court for the District of Delaware) will be the sole and exclusive forum for (i) any derivative action or proceeding brought on behalf of us; (ii) any action asserting a claim of breach of a fiduciary duty owed by any of our directors or officers or other employees to us or our stockholders; (iii) any action asserting a claim against us or any of our directors or officers or other employees arising pursuant to any provision of the DGCL or our CharterCertificate of Incorporation or theour By-laws (as either may be amended from time to time),; or (iv) any action asserting a claim against us or any of our directors or other officers or other employees which claim is governed by the internal affairs doctrine.

Limitations of Directors’ Liability

Our CharterCertificate of Incorporation provides that none of our directors will be personally liable to us or our stockholders for monetary damages for breach of fiduciary duty as a director, except for liability:

for any breach of the director’s duty of loyalty to us or our stockholders;
for acts of omissions not in good faith or which involve intentional misconduct or a knowing violation of law;
under Section 174 of the DGCL; or
for any transaction from which the director derived an improper personal benefit.

for any breach of the director’s duty of loyalty to us or our stockholders;

for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law;

under Section 174 of the DGCL; or

for any transaction from which the director derived an improper personal benefit.

The effect of these provisions is to eliminate our rights and the rights of our stockholders (through stockholders’ derivatives suits on behalf of us) to recover monetary damages against a director for breach of fiduciary duty as a director (including breaches resulting from grossly negligent behavior), except in the situations described above. These provisions do not limit the liability of directors under federal securities laws and do not affect the availability of equitable remedies such as an injunction or rescission based upon a director’s breach of his duty of care.

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Listing

Disclosure of Commission Position on the NASDAQ Global Market

Our common stock is listed on the NASDAQ Global Market under the symbol “FCEL”.
Transfer Agent and Registrar
The transfer agent and registrarIndemnification for our common stock and preferred stock is American Stock Transfer & Trust Company, New York, New York.
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DESCRIPTION OF WARRANTS
We may issue warrants for the purchase of common stock, debt securities or other securities registered pursuant to this registration statement and described in this prospectus. We may issue warrants independently or together with other securities that may be attached to or separate from the warrants. We will issue each series of warrants under a separate warrant agreement that will be entered into between us and a bank or trust company, as warrant agent, and will be described in the prospectus supplement relating to the particular issue of warrants. The warrant agent will act solely as our agent in connection with the warrants of such series and will not assume any obligation or relationship of agency for or with holders or beneficial owners of warrants. The following describes certain general terms and provisions of debt warrants or common stock warrants we may offer. We will set forth further terms of the debt warrants, common stock warrants or warrants to purchase other securities and the applicable warrant agreement in the applicable prospectus supplement.
Debt Warrants
If we offer warrants for the purchase of debt securities, a prospectus supplement relating to the warrants being offered will describe the terms of the warrants, the warrant agreement and the warrant certificates, including the following:
the title of the debt warrants;
the offering price for the debt warrants, if any;
the aggregate number of the debt warrants;
the designation and terms of the debt securities purchasable upon exercise of such debt warrants;
if applicable, the designation and terms of the securities with which such debt warrants are issued and the number of such debt warrants issued with each security;
if applicable, the date from and after which such debt warrants and any securities issued therewith will be separately transferable;
the principal amount of debt securities purchasable upon exercise of a debt warrant and the price at which such principal amount of debt securities may be purchased upon exercise;
the date on which the right to exercise such debt warrants shall commence and the date on which such right shall expire;
if applicable, the minimum or maximum amount of such debt warrants which may be exercised at any one time;
whether the debt warrants represented by the debt warrant certificates or debt securities that may be issued upon exercise of the debt warrants will be issued in registered form;
information with respect to book-entry procedures, if any;
the currency, currencies or currency units in which the offering price, if any, and the exercise price are payable;
if applicable, a discussion of certain United States federal income tax considerations;
the identity of the warrant agent for the warrants;
the antidilution provisions of such debt warrants, if any;
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the redemption or call provisions, if any, applicable to such debt warrant; and
any additional terms of the debt warrants, including terms, procedures and limitations relating to the exchange and exercise of such debt warrants.
Common Stock Warrants
If we offer warrants for the purchase of common stock, a prospectus supplement relating to the warrants being offered will describe the terms of any common stock warrants, including the following:
the title of such warrants;
the offering price of such warrants, if any;
the aggregate number of such warrants;
the designation and terms of the common stock that is issued and purchasable upon exercise of such warrants;
if applicable, the designation and terms of the securities with which such warrants are issued and the number of such warrants issued with each such security;
if applicable, the date from and after which such warrants and any securities issued therewith will be separately transferable;
the number of shares of common stock that is issued and purchasable upon exercise of the warrants and the price which such shares may be purchased upon exercise;
the date on which the right to exercise such warrants shall commence and the date on which such right shall expire;
if applicable, the minimum or maximum amount of such warrants which may be exercised at any one time;
the currency, currencies or currency units in which the offering price, if any, and the exercise price are payable;
if applicable, a discussion of certain United States federal income tax considerations;
the identity of the warrant agent for the warrants;
the anti-dilution provisions of the warrants, if any;
 redemption or call provisions, if any, applicable to the warrants; and
 any other terms of the warrants.
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DESCRIPTION OF UNITS
The following description, together with the additional information we may include in any applicable prospectus supplement, summarizes the material terms and provisions of the units that we may offer under this prospectus. While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.
We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, the form of unit agreement that describes the terms of the series of units we are offering, and any supplemental agreements, before the issuance of the related series of units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement and any supplemental agreements applicable to a particular series of units. We urge you to read the applicable prospectus supplements related to the particular series of units that we sell under this prospectus, as well as the complete unit agreement and any supplemental agreements that contain the terms of the units.
General
We may issue units comprised of one or more shares of common stock and preferred stock, debt and warrants in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date. We will describe in the applicable prospectus supplement the terms of the series of units, including:
The designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;
Any provisions of the governing unit agreement that differ from those described below; and
Any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.
The provisions described in this section, as well as those described under “Description of Debt Securities,” “Description of Capital Stock,” and “Description of Warrants” will apply to each unit and to any debt, shares of capital stock or warrant included in each unit, respectively.
Issuance in Series
We may issue units in such amounts and in numerous distinct series as we determine.
Enforceability of Rights by Holders of Units
Each unit agent, if applicable, will act solely as our agent under the applicable unit agreement and will not assume any obligation or relationship of agency or trust with any holder of any unit. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.
We, any unit agents and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary.
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PLAN OF DISTRIBUTION
We may sell the securities from time to time pursuant to underwritten public offerings, negotiated transactions, market sales, block trades or a combination of these methods. We may sell the securities (1) through underwriters or dealers, (2) through agents and/or (3) directly to one or more purchasers. We may distribute the securities from time to time in one or more transactions:
at a fixed price or prices, which may be changed;
in “at the market” offerings, within the meaning of Rule 415(a)(4) of the Securities Act to or through a market maker or into an existing trading market, on an exchange or otherwise;
at prices related to prevailing market prices; or
at negotiated prices.
We may solicit directly offers to purchase the securities being offered by this prospectus. We may also designate agents to solicit offers to purchase the securities from time to time. We will name in a prospectus supplement any agent involved in the offer or saleLiabilities

Our Certificate of our securities.

If we utilize a broker-dealer in the sale of the securities being offered by this prospectus, we will sell the securities to the broker-dealer, as principal. The broker-dealer may then resell the securities to the public at varying prices to be determined by the broker-dealer at the time of resale.
If underwriters are used in the sale of any of the securities, the securities will be acquired by the underwriters for their own account and may be resold from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. The securities may be either offered to the public through underwriting syndicates represented by managing underwriters, or directly by underwriters. Generally, the underwriters’ obligations to purchase the securities will be subject to certain conditions precedent. Depending on the type of offering, the underwriters may be obligated to purchase all of the securities if they purchase any of the securities (other than any securities purchased upon exercise of any over-allotment option).
We may sell the securities through agents from time to time. The applicable prospectus supplement will name any agent involved in the offer or sale of the securities and any commissions paid to them. Generally, any agent will be acting on a best efforts basis for the period of its appointment. In addition, we may enter into derivative, sale or forward sale transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with such transaction, the third parties may, pursuant to this prospectus and the applicable prospectus supplement, sell the securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities borrowed from us or others to settle such sales and may use securities received from us or others to settle those sales to close out any related short positions. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement (or a post-effective amendment). We may also loan or pledge the securities covered by this prospectus and the applicable prospectus supplement to third parties, who may sell the loaned securities or, in an event of default in the case of a pledge, sell the pledged securities pursuant to this prospectus and the applicable prospectus supplement.
The underwriters, broker-dealers and agents that participate in the distribution of the securities may be deemed to be “underwriters” as defined by the Securities Act. Any commissions paid or any discounts or concessions allowed to any such persons, and any profits they receive on resale of the securities, may be deemed to be underwriting discounts and commissions under the Securities Act.
We may offer the common stock covered by this prospectus into an existing trading market on the terms described in the prospectus supplement relating thereto. Underwriters, broker-dealers, and agents who participate in any at-the-market offerings will be described in the prospectus supplement relating thereto. To the extent that we make sales through one or more underwriters, broker-dealers, or agents in at-the-market offerings, we will do so pursuant to the terms of a sales agency financing agreement or other at-the-market offering arrangement between us and the underwriters or agents. If we engage in at-the-market sales pursuant to any such agreement, we will issue and sell our common stock through one or more underwriters, broker-dealers, or agents, which may act on an agency basis or on a principal basis. During the term of any such agreement, we may sell our common stock on a daily basis in exchange transactions or otherwise as we agree with the underwriters, broker-dealers, or agents. Such agreement will provide that any common stock sold will be sold at prices related to the then-prevailing market prices for our common stock. Therefore, exact figures regarding proceeds that will be raised or commissions to be paid cannot be determined at this time. Pursuant to the terms of such agreement, we also may agree to sell, and the relevant underwriters, broker-dealers or agents may agree to solicit offers to purchase, blocks of our common stock. The terms of each such agreement will be set forth in more detail in the applicable prospectus supplement.
Agents, underwriters, and broker-dealers may be entitled under relevant agreements with us to indemnification by us against certain liabilities, including liabilities under the Securities Act, or to contribution with respect to payments which such agents, underwriters and dealers may be required to make in respect thereof. The terms and conditions of any indemnification or contribution will be described in the applicable prospectus supplement.
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Underwriters, broker-dealers or agents may receive compensation in the form of commissions, discounts or concessions from us. Underwriters, broker-dealers or agents may also receive compensation from the purchasers of the securities for whom they act as agents or to whom they sell as principals, or both. Compensation as to a particular underwriter, broker-dealer or agent might be in excess of customary commissions and will be in amounts to be negotiated in connection with transactions involving the securities. In effecting sales, broker-dealers engaged by us may arrange for other broker-dealers to participate in the resales. Maximum compensation to any underwriters, dealers or agents will not exceed any applicable NASD limitations.
Underwriters or agents may purchase and sell the securities in the open market. These transactions may include over-allotments, stabilizing transactions, syndicate covering transactions and penalty bids. Over-allotments involve sales in excess of the offering size, which creates a short position. Stabilizing transactions consist of bids or purchases for the purpose of preventing or retarding a decline in the market price of the securities and are permitted so long as the stabilizing bids do not exceed a specified maximum. Syndicate covering transactions involve the placing of any bid on behalf of the underwriting syndicate or the effecting of any purchase to reduce a short position created in connection with an offering. The underwriters or agents also may impose a penalty bid, which permits them to reclaim selling concessions allowed to syndicate members or certain dealers if they repurchase the securities in stabilizing or covering transactions. These activities may stabilize, maintain or otherwise affect the market price of the securities, which may be higher than the price that might otherwise prevail in the open market. These activities, if begun, may be discontinued at any time. These transactions may be effected on any exchange on which the securities are traded, in the over-the-counter market or otherwise.
Except as indicated in the applicable prospectus supplement, the securities are not expected to be listed on any securities exchange, except for our common stock, which is quoted on the NASDAQ Global Market under the symbol “FCEL”, and no underwriters will be obligated to make a market in these securities. We cannot predict the activity or liquidity of any trading in these securities.
Agents, broker-dealers, and underwriters or their affiliates may be customers of, engage in transactions with, or perform services for us in the ordinary course of business. We may also use underwriters or other third parties with whom we have a material relationship. We will describe the nature of any such relationship in the applicable prospectus supplement.
We are subject to the applicable provisions of the Exchange Act and the rules and regulations under the Exchange Act, including Regulation M. This regulation may limit the timing of purchases and sales of any of the shares of common stock offered in this prospectus. The anti-manipulation rules under the Exchange Act may apply to sales of shares of common stock in the market and to our activities.
In certain states, the securities must be sold only through registered or licensed brokers or dealers in order to comply with state securities laws. In addition, in certain states the securities may not be sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is complied with.
To the extent required, this prospectus may be amended and/or supplemented from time to time to describe a specific plan of distribution. Instead of selling securities under this prospectus, we may sell the securities offered, including shares of common stock, in compliance with the provisions of Rule 144 or Rule 144A under the Securities Act, if available, or pursuant to other available exemptions from the registration requirements of the Securities Act.
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DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION
FOR SECURITIES ACT LIABILITIES
Our CharterIncorporation provides that none of our directors will be personally liable to us or our shareholdersstockholders for monetary damages for breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL.described above. Our By-laws provide for indemnification of our officers and directors to the fullest extent permitted by applicable law. Insofar as indemnification for liabilities under the Securities Act may be permitted to directors, officers or controlling persons of the Company pursuant to the Charter,our Certificate of Incorporation, our By-laws, or applicable law, or otherwise, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.


SELLING STOCKHOLDERS

This prospectus relates to the offer and sale from time to time by the selling stockholders of up to 17,396,320 shares of our common stock, of which (i) 8,000,000 shares are issuable upon the exercise of outstanding warrants that were issued in connection with and pursuant to our Credit Facility and (ii) 9,396,320 shares were issued upon the cashless exercise of certain additional warrants that were issued in connection with and pursuant to our Credit Facility. See “Prospectus Summary—The Offering” and “DESCRIPTION OF CAPITAL STOCK — Warrants Issued in Connection with the Credit Facility” for additional information. We are registering the offer and sale by the selling stockholders of the shares of our common stock covered by this prospectus to satisfy the contractual registration rights of the selling stockholders under the warrants.

We will pay certain expenses of the registration of the shares offered hereby, including the SEC filing fees. Brokerage commissions and similar selling expenses, if any, attributable to the sale of shares of our common stock will be borne by the selling stockholders.

The selling stockholders do not have, and within the past three years have not had, any material relationship with us or any of our affiliates other than in connection with the Credit Facility, which, among other things, provided for the issuance of the warrants and provides the selling stockholders with board observer rights pursuant to which the selling stockholders have two non-voting board observer seats, which are currently held by Gerrit Nicholas and Rui Viana.

We do not know when or in what amounts the selling stockholders may offer and sell the shares of our common stock listed in the table below. The selling stockholders might not sell any or all of the shares covered by this prospectus or may sell or dispose of some or all of the shares other than pursuant to this prospectus. Because the selling stockholders may not sell or otherwise dispose of some or all of the shares covered by this prospectus and because, to our knowledge, there are currently no agreements, arrangements or understandings with respect to the sale or other disposition of any of the shares, we cannot estimate the number of the shares that will be held by the selling stockholders after completion of the offering. For purposes of presenting information in the table below, however, we have assumed that the selling stockholders will offer and sell all of the shares of common stock covered by this prospectus.

The table below presents information regarding the selling stockholders and the shares of our common stock that the selling stockholders may sell or otherwise dispose of from time to time under this prospectus. The percentage of shares beneficially owned is based upon 217,907,336 shares of common stock issued and outstanding as of June 24, 2020. Under the terms of the warrants, a holder will not have the right to exercise any portion of a warrant if the holder, together with its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately after the exercise; provided, however, that the holder may increase or decrease this limitation at any time, although any increase shall not be effective until the 61st day following the notice of increase. The number of shares in the table below does not reflect this limitation. The selling stockholders may sell all, some or none of their shares in this offering. See “Plan of Distribution.” The information in the table below and the footnotes to the table below are based on information provided to us by the selling stockholders and are accurate to the best of our knowledge as of the date of this prospectus.

Shares Beneficially Owned Before the Offering and After the Offering
Name of selling stockholder

Shares
Beneficially
Owned Before
the

Offering (1)

Percentage
of
Shares Beneficially
Owned
Before the
Offering
Number of
Shares That
May be
Sold in the
Offering

Shares
Beneficially
Owned
After
the

Offering

Percentage
of
Shares
Beneficially
Owned
After the
Offering
Orion Energy Credit Opportunities Fund II, L.P. (2)4,018,794 (3)1.83%4,018,794 (3)--
Orion Energy Credit Opportunities Fund II PV, L.P. (2)6,457,986 (4)2.92%6,457,986 (4)--
Orion Energy Credit Opportunities Fund II GPFA, L.P. (2)395,920 (5)*395,920 (5)--
Orion Energy Credit Opportunities FuelCell Co-Invest, L.P.(2)6,523,620 (6)2.95%6,523,620 (6)--

* Less than 1%.

(1) Consists solely of shares of common stock issued or issuable upon exercise of the warrants.

(2) Orion Energy Partners, L.P. is the manager of the selling stockholder and a registered investment adviser. As members of the Investment Committee of Orion Energy Partners, L.P., Nazar Massouh, Gerrit Nicholas, Robert Rusk, and Rui Viana share voting and investment power over the shares held by the selling stockholder. The selling stockholder’s address is 350 Fifth Avenue, Suite 6740, New York, New York 10118.


(3) Includes 2,170,681 shares issued pursuant to the cashless exercise of warrants on January 9, 2020, and 1,848,113 shares issuable upon the exercise of outstanding warrants.

(4) Includes 3,488,169 shares issued pursuant to the cashless exercise of warrants on January 9, 2020, and 2,969,817 shares issuable upon the exercise of outstanding warrants.

(5) Includes 213,850 shares issued pursuant to the cashless exercise of warrants on January 9, 2020, and 182,070 shares issuable upon the exercise of outstanding warrants.

(6) Includes 3,523,620 shares issued pursuant to the cashless exercise of warrants on January 9, 2020, and 3,000,000 shares issuable upon the exercise of outstanding warrants.


PLAN OF DISTRIBUTION

We are registering the shares of common stock issued or issuable upon the exercise of warrants to permit the resale of these shares of common stock by the holders from time to time after the date of this prospectus. We will not receive any of the proceeds from the sale by the selling stockholders of the shares of common stock. We will, however, receive proceeds on the exercise by the selling stockholders of outstanding warrants for shares of our common stock covered by this prospectus if the warrants are exercised for cash. We will pay certain expenses of the registration of the shares offered hereby, including the SEC filing fees. Brokerage commissions and similar selling expenses, if any, attributable to the sale of shares of our common stock will be borne by the selling stockholders.

The selling stockholders may sell all or a portion of the shares of common stock offered hereby from time to time directly or through one or more underwriters, broker-dealers or agents. If the shares of common stock are sold through underwriters or broker-dealers, the selling stockholders will be responsible for underwriting discounts or commissions or agent’s commissions. The shares of common stock may be sold in one or more transactions at fixed prices, at prevailing market prices at the time of the sale, at varying prices determined at the time of sale or at negotiated prices. These sales may be effected in transactions, which may involve crosses or block transactions, pursuant to one or more of the following methods:

·on any national securities exchange or quotation service on which the shares may be listed or quoted at the time of sale;

·in the over-the-counter market;

·in transactions otherwise than on these exchanges or systems or in the over-the-counter market;

·through the writing or settlement of options, whether such options are listed on an options exchange or otherwise;

·ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers;

·block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to facilitate the transaction;

·purchases by a broker-dealer as principal and resale by the broker-dealer for its account;

·an exchange distribution in accordance with the rules of the applicable exchange;

·privately negotiated transactions;

·broker-dealers may agree with a selling stockholder to sell a specified number of such shares at a stipulated price per share;

·a combination of any such methods of sale; and

·any other method permitted pursuant to applicable law.

The selling stockholders may also sell shares of common stock under Rule 144 promulgated under the Securities Act, if available, rather than under this prospectus. In addition, the selling stockholders may transfer the shares of common stock by other means not described in this prospectus. If the selling stockholders effect such transactions by selling shares of common stock to or through underwriters, broker-dealers or agents, such underwriters, broker-dealers or agents may receive commissions in the form of discounts, concessions or commissions from the selling stockholders or commissions from purchasers of the shares of common stock for whom they may act as agent or to whom they may sell as principal (which discounts, concessions or commissions as to particular underwriters, broker-dealers or agents may be in excess of those customary in the types of transactions involved). The selling stockholders may also loan or pledge shares of common stock to broker-dealers that in turn may sell such shares.

The selling stockholders may pledge or grant a security interest in some or all of the warrants or shares of common stock owned and, if a selling stockholder defaults in the performance of its secured obligations, the pledgees or secured parties may offer and sell the shares of common stock from time to time pursuant to this prospectus or any amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act amending, if necessary, the list of selling stockholders to include the pledgees, transferees or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer and donate the shares of common stock in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.


To the extent required by the Securities Act and the rules and regulations thereunder, the selling stockholders and any broker-dealers participating in the distribution of the shares of common stock may be deemed to be “underwriters” within the meaning of the Securities Act, and any commission paid, or any discounts or concessions allowed to, any such broker-dealer may be deemed to be underwriting commissions or discounts under the Securities Act. At the time a particular offering of the shares of common stock is made, a prospectus supplement, if required, will be distributed, which will set forth the aggregate amount of shares of common stock being offered and the terms of the offering, including the name or names of any broker-dealers or agents, any discounts, commissions and other terms constituting compensation from the selling stockholders and any discounts, commissions or concessions allowed or re-allowed or paid to broker-dealers.

Under the securities laws of some states, the shares of common stock may be sold in such states only through registered or licensed brokers or dealers. In addition, in some states, the shares of common stock may not be sold unless such shares have been registered or qualified for sale in such state or an exemption from registration or qualification is available and is complied with.

There can be no assurance that the selling stockholders will sell any or all of the shares of common stock registered pursuant to the registration statement of which this prospectus forms a part.

The selling stockholders and any other persons participating in such distribution will be subject to applicable provisions of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, including, without limitation, to the extent applicable, Regulation M of the Exchange Act, which may limit the timing of purchases and sales of any of the shares of common stock by the selling stockholders and any other participating person. To the extent applicable, Regulation M may also restrict the ability of any person engaged in the distribution of the shares of common stock to engage in market-making activities with respect to the shares of common stock. All of the foregoing may affect the marketability of the shares of common stock and the ability of any person or entity to engage in market-making activities with respect to the shares of common stock.

In accordance with the terms of the Credit Facility, the Company granted certain of the selling stockholders (i.e., the initial lenders under the Credit Facility – Orion Energy Credit Opportunities Fund II, L.P., Orion Energy Credit Opportunities Fund II GPFA, L.P., and Orion Energy Credit Opportunities Fund II PV, L.P.) two non-voting board observer seats pursuant to an Observer Right Agreement.  The board observers are Gerrit Nicholas and Rui Viana. Gerrit Nicholas is a Managing Partner and Rui Viana is Head of Risk and Analytics for the selling stockholders and both are members of the Investment Committee of Orion Energy Partners, L.P., the Manager of the selling stockholders.

In connection with the rights provided under the Observer Right Agreement, the Company entered into an Indemnification Agreement with certain of its subsidiaries, the board observers, the selling stockholders party to the Observer Right Agreement, and certain affiliates of such selling stockholders, which provides for the indemnification and advancement of expenses to the board observers, such selling stockholders, and their respective affiliates (collectively, the “Indemnitees”) to the fullest extent permitted by law. Under the Indemnification Agreement, each Indemnitee is to be indemnified against certain losses, claims, damages and liabilities actually and reasonably incurred by it or on its behalf if, by reason of a board observer’s status as such or service in such capacity, such Indemnitee is, or is threatened to be made a party to or otherwise involved in any proceeding (as defined in the Indemnification Agreement). 

This summary of the Observer Right Agreement and the Indemnification Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Observer Right Agreement (which includes, as Exhibit A thereto, a copy of the Indemnification Agreement), which is included as Exhibit 10.7 to the registration statement of which this prospectus is a part.

We have agreed to keep the registration statement effective until the earlier of (i) the date as of which the holders of the warrants may sell all of the shares of common stock issuable upon exercise of the warrants without restriction pursuant to Rule 144 as promulgated under the Securities Act (including, without limitation, volume restrictions) and without the need for current public information required by Rule 144(c)(1) (or Rule 144(i)(2), if applicable) as promulgated under the Securities Act or (ii) the date on which the holders shall have sold all of the shares of common stock issuable upon exercise of the warrants.

The shares of common stock, once sold under the registration statement of which this prospectus forms a part, will be freely tradable in the hands of persons other than our affiliates.


28

LEGAL MATTERS

The validity of the securitiesshares of our common stock offered hereby has beenby this prospectus is being passed upon for us by Patterson Belknap Webbthe law firm of Foley & TylerLardner LLP, New York, New York, unless otherwise indicated in the applicable prospectus supplement.  If the securities are being distributed in an underwritten offering, the validity of the securities will be passed upon for the underwriters by counsel identified in the related prospectus supplement.

Boston, Massachusetts.

EXPERTS

The consolidated financial statements of FuelCell Energy, Inc. and subsidiaries as of October 31, 20162019 and 2015,2018, and for each of the years in the three-year period ended October 31, 2016, and management’s assessment of the effectiveness of internal control over financial reporting as of October 31, 20162019, have been incorporated by reference herein and in the registration statement in reliance upon the report of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

29

The audit report covering the October 31, 2019 consolidated financial statements refers to a change in the Company’s method of accounting for revenue due to the adoption of new accounting guidance.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any document we fileWe also filed a registration statement on Form S-3, including exhibits, under the Securities Act with respect to the SEC at the SEC’s Public Reference Room in Washington, D.C. located at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the operationshares of common stock offered by this prospectus. This prospectus is a part of the Public Reference Room.registration statement, but does not contain all of the information included in the registration statement or the exhibits. The SEC maintains an Interneta web site, at http://www.sec.govwhich, that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC. You may review the registration statement and any other document we file on the SEC’s web site. Our SEC filings are also available to the public from the SEC’s Internet site.

This prospectuson our web site, www.fuelcellenergy.com. The information on our web site, however, is not, and should not be deemed to be, a part of a registration statement that we have filed with the SEC relating to the securities to be offered. This prospectus does not contain all of the information we have included in the registration statement and the accompanying exhibits and schedules in accordance with the rules and regulations of the SEC, and we refer you to the omitted information. The statements this prospectus makes pertaining to the content of any contract, agreement or other document that is an exhibit to the registration statement necessarilyprospectus.

We are summaries of their material provisions and do not describe all provisions, exceptions and qualifications contained in those contracts, agreements or documents. You should read those contracts, agreements or documents for information that may be important to you. The registration statement, exhibits and schedules are available at the SEC’s Public Reference Room or through its Internet site.

You should rely only on the information provided in this prospectus and the registration statement. We have not authorized anyone else to provide you with different information. Our securities are not being offered in any state where the offer is not permitted. You should assume that the information in this prospectus is accurate only as of the dates of those documents. Our business, financial condition, results of operations and prospects may have changed since those dates.
INCORPORATION BY REFERENCE
The SEC allows us to “incorporate“incorporating by reference” informationspecified documents that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. Information in this prospectus supersedes information incorporated by reference that we filed with the SEC, prior to the date of this prospectus, while information that we file later with the SEC will automatically update and supersede this information. which means:

·incorporated documents are considered part of this prospectus;

·we are disclosing important information to you by referring you to those documents; and

·information we file with the SEC will automatically update and supersede information contained in this prospectus.

We incorporate by reference into this registration statement and prospectus the documents listed below and any future filings we will make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act:

Act after the date on which we file the registration statement of which this prospectus is a part and before the end of the offering of our common stock pursuant to this prospectus:

1.·Our our Annual Report on Form 10-K for the fiscal year ended October 31, 2016,2019, filed with the SEC on January 12, 2017,22, 2020, including the information specifically incorporated by reference into ourthe Annual Report on Form 10-K from our Definitive Proxy Statement on Schedule 14Adefinitive proxy statement for the 2020 Annual Meeting of Stockholders filed with the SEC on February 17, 2017;24, 2020;

2.·
Ourour Quarterly Reports on Form 10-Q for the fiscal quarters ended January 31, 2020 and April 30, 2020, filed with the SEC on March 16, 2020 and June 12, 2020, respectively;

·our Current Reports on Form 8-K, filed with the SEC on November 4, 2016, 6, 2019 (excluding Item 7.01 and Exhibits 99.1, 99.2 and 99.3 of Item 9.01), November 25, 2019, December 1, 2016, 12, 2019, December 20, 20162019 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), January 13, 2020, February 13, 2020 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), February 21, 2020, March 20, 2020 (excluding Item7.01 and Exhibit 99.1 of Item 9.01), April 7, 2020 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), April 9, 2020, April 24, 2020 (excluding Item 7.01), May 4, 2020 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), May 12, 2017;2020 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), May 15, 2020, June 11, 2020, June 16, 2020, June 22, 2020 (excluding Item 7.01 and Exhibit 99.1 of Item 9.01), and June 29, 2020;

3.·Theany other reports filed pursuant to Section 13(a) or 15(d) of the Exchange Act since October 31, 2019; and

·the description of our common stock set forth in our registration statement on Form 8-A, filed with the SEC on June 6, 2000, including any amendments or reports filed for the purposes of updating this description.


You may obtain a copy

Notwithstanding the foregoing, information furnished under Items 2.02 and 7.01 of any or all ofCurrent Report on Form 8-K, including the documents referred to above which have been or will berelated exhibits under Item 9.01, is not incorporated by reference in this prospectus (including exhibits specifically incorporated by reference in those documents), as well asprospectus.

You may request a copy of the registration statementany of which this prospectus is a part and its exhibits,these filings, at no cost, to you by writing or telephoningrequest directed to us at the following address:

address or telephone number:

FuelCell Energy, Inc.


Attention: Corporate Secretary

3 Great Pasture Road

Danbury, Connecticut 06813
06810
Telephone: (203) 825-6000
30


You should not assume that the information in this prospectus or any prospectus supplement, as well as the information we file or previously filed with the SEC that we incorporate by reference in this prospectus or any prospectus supplement, is accurate as of any date other than the respective date of such documents. Our business, financial condition, results of operations and prospects may have changed since that date.



FuelCell Energy, Inc.
$150,000,000
Debt Securities
Preferred Stock
Common Stock
Warrants
Units

PROSPECTUS

                   , 2017



PART II


INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

The following table sets forth allthe estimated costs and expenses payableto be borne by usthe Company in connection with this offering. All expenses incurred with respect to the offeringregistration of the securities being registered. All such expenses are beingcommon stock will be borne by us.

SEC Registration Fee  $17,385  
Accounting Fees and Expenses   * 
Legal Fees and Expenses   *  
Miscellaneous Expenses   *  
      
Total   *  
*These fees are calculated based on the number of issuances and amount of securities offered and accordingly cannot be estimated at this time. An estimate of the aggregate amount of these expenses will be reflected in the applicable prospectus supplement.
the Company. All amounts are estimates, except the Securities and Exchange Commission registration fee.

Securities and Exchange Commission registration fee $5,195 
Printing expenses $3,500 
Legal fees and expenses $75,000 
Accounting fees and expenses $10,000 
Total expenses $93,695 

Item 15. Indemnification of Directors and Officers

Officers.

Delaware General Corporation Law

Section 145 of the DGCLDelaware General Corporation Law (the “DGCL”) provides that a corporation may indemnify any person including an officer and director, who was or is, or is threatened to be made, a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of such corporation), by reason of the fact that such person is or was a director, officer, employee or agent of such corporation, or is or was serving at the request of such corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise. The indemnity may include expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding, provided such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of such corporation, and, with respect to any criminal actions and proceedings, had no reasonable cause to believe that hissuch person’s conduct was unlawful. A

In addition, under Section 145 of the DGCL, a Delaware corporation may indemnify any person including an officer or director, who was or is, or is threatened to be made, a party to any threatened, pending or contemplated action or suit by or in the right of such corporation underto procure a judgment in its favor, by reason of the same conditions,fact that such person is or was a director, officer, employee or agent of such corporation, or is or was serving at the request of such corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of such corporation and except that no indemnification is permitted without judicial approval ifshall be made in respect of any claim, issue or matter as to which such person isshall have been adjudged to be liable to such corporation. Wherecorporation unless and only to the extent that the Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such other court shall deem proper.

To the extent that an officer or director of a corporation ishas been successful, on the merits or otherwise, in the defense of any action, suit or proceeding referred to above, or in defense of any claim, issue or matter herein,therein, the corporation must indemnify such person against the expenses (including attorneys’ fees) which such officer or director actually and reasonably incurred by such person in connection therewith.

Our Charter

Certificate of Incorporation, as amended, Amended and Restated By-Laws, and Insurance

The Company’s Certificate of Incorporation, as amended, provides that nonethe Company may, to the fullest extent permitted by Section 145 of our directorsthe DGCL, indemnify any and all persons whom it shall have power to indemnify under said section from and against any and all of the expenses, liabilities or other matters referred to in or covered by said section. The Company’s Certificate of Incorporation, as amended, further provides that no director will be personally liable to usthe Company or our shareholdersits stockholders for monetary damages for any breach of fiduciary duty by such director as a director; provided, however, that a director exceptwill be liable to the extent provided by applicable law (i) for breach of such exemptiondirector’s duty of loyalty to the Company or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) pursuant to Section 174 of the DGCL, or (iv) for any transaction from liability or limitation thereof is not permitted underwhich the DGCL.director derived an improper personal benefit.


Our

The Company’s Amended and Restated By-laws also provide for indemnification of ourthe Company’s officers and directors to the fullest extent permitted by applicable law. We also maintain

In addition, the Company maintains directors’ and officers’ liability insurance policies.

II-1

Item 16. Exhibits


Exhibits.

The exhibits to the registration statement are listed in the indexExhibit Index below are filed or incorporated by reference as part of exhibits attached hereto and are incorporated herein by reference.

this Registration Statement.

EXHIBIT INDEX

Exhibit
Number
Description of Exhibit
4.1Certificate of Incorporation of the Company, as amended, July 12, 1999 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K dated September 21, 1999).
4.2Certificate of Amendment of the Certificate of Incorporation of the Company, dated November 21, 2000 (incorporated by reference to Exhibit 3.3 to the Company’s Annual Report on Form 10-K dated January 12, 2017).
4.3Certificate of Amendment of the Certificate of Incorporation of the Company, dated October 31, 2003 (incorporated by reference to Exhibit 3.11 to the Company’s Current Report on Form 8-K dated November 3, 2003).
4.4Amended Certificate of Designation of Series B Cumulative Convertible Perpetual Preferred Stock, dated March 14, 2005 (incorporated by reference to Exhibit 3.4 to the Company’s Annual Report on Form 10-K dated January 12, 2017).
4.5Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 8, 2011 (incorporated by reference to Exhibit 3.5 to the Company’s Annual Report on Form 10-K dated January 12, 2017).
4.6Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 5, 2012 (incorporated by reference to Exhibit 3.6 to the Company’s Annual Report on Form 10-K dated January 12, 2017).
4.7Certificate of Amendment of the Certificate of Incorporation of the Company, dated December 3, 2015 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K dated December 3, 2015).
4.8Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 18, 2016 (incorporated by reference to Exhibit 3.9 to the Company’s Quarterly Report on Form 10-Q for the period ending April 30, 2016).
4.9Certificate of Amendment of the Certificate of Incorporation of the Company, dated April 7, 2017 (incorporated by reference to Exhibit 3.10 to the Company’s Quarterly Report on Form 10-Q for the period ending April 30, 2017).
4.10Certificate of Amendment of the Certificate of Incorporation of the Company, dated December 14, 2017 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K dated December 14, 2017).
4.11Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., dated May 8, 2019 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on May 8, 2019).


4.12Certificate of Amendment of the Certificate of Incorporation of FuelCell Energy, Inc., dated May 11, 2020 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on May 12, 2020).
4.13Letter Agreement, dated January 20, 2020, among FuelCell Energy, Inc., FCE FuelCell Energy Ltd., and Enbridge Inc. relating to the amendment of the terms of the Class A Cumulative Preferred Stock of FCE FuelCell Energy Ltd. (incorporated by reference to Exhibit 4.13 to the Annual Report on Form 10-K for the fiscal year ended October 31, 2019, filed by the Company on January 22, 2020).
4.14Schedule A setting forth the amended rights, privileges, restrictions and conditions of the Class A Cumulative Preferred Stock of FCE FuelCell Energy Ltd. (incorporated by reference to Exhibit 4.14 to the Annual Report on Form 10-K for the fiscal year ended October 31, 2019, filed by the Company on January 22, 2020).
4.15Articles of FCE FuelCell Energy Ltd., effective as of January 20, 2020, including in Article 27.2 the Special Rights and Restrictions of the Class A Preferred Shares of FCE FuelCell Energy Ltd. (incorporated by reference to Exhibit 4.15 to the Quarterly Report on Form 10-Q for the quarter ended April 30, 2020 filed by the Company on June 12, 2020).
4.16Specimen of Common Share Certificate (incorporated by reference to Exhibit 4 to the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on January 31, 2000).
4.17Form of Common Stock Warrant, issued pursuant to the Credit Facility (incorporated by reference to Exhibit 10.6 to the Current Report on Form 8-K filed by the Company on November 6, 2019).
4.18Form of Series C Warrants to purchase common stock (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K dated April 27, 2017).
4.19Amended and Restated By-Laws of the Company, dated December 15, 2016 (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K dated December 15, 2016).
5.1Opinion of Foley & Lardner LLP.
10.1Credit Agreement, dated as of October 31, 2019, among FuelCell Energy, Inc., the Guarantors from time to time party thereto, the Lenders party thereto, and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed by the Company on November 6, 2019).
10.2First Amendment to Credit Agreement, dated as of November 22, 2019, by and among FuelCell Energy, Inc., each of the Guarantors party to the Credit Agreement, the Lenders party to the Credit Agreement and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by the Company on November 25, 2019).
10.3Second Amendment to Credit Agreement, dated as of January 20, 2020, by and among FuelCell Energy, Inc., each of the Guarantors party to the Credit Agreement, each of the lenders party to the Credit Agreement and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.117 to the Annual Report on Form 10-K for the year ended October 31, 2019 filed by the Company on January 22, 2020).
10.4Third Amendment to Credit Agreement, dated as of February 11, 2020, by and among FuelCell Energy, Inc., each of the Guarantors party to the Credit Agreement, each of the lenders party to the Credit Agreement and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed by the Company on February 13, 2020).
10.5Fourth Amendment to Credit Agreement, dated as of April 30, 2020, by and among FuelCell Energy, Inc., each of the Guarantors party to the Credit Agreement, each of the lenders party to the Credit Agreement and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by the Company on May 4, 2020).


10.6Fifth Amendment to Credit Agreement, dated as of June 8, 2020, by and among FuelCell Energy, Inc., each of the Guarantors party to the Credit Agreement, each of the lenders party to the Credit Agreement and Orion Energy Partners Investment Agent, LLC (incorporated by reference to Exhibit 10.13 to the Quarterly Report on Form 10-Q for the quarter ended April 30, 2020 filed by the Company on June 12, 2020).
10.7Observer Right Agreement, dated October 31, 2019, among FuelCell Energy, Inc., the Subsidiaries from time to time party thereto, Orion Energy Credit Opportunities Fund II, L.P., Orion Energy Credit Opportunities Fund II PV, L.P., and Orion Energy Credit Opportunities Fund II GPFA, L.P. (incorporated by reference to Exhibit 10.7 to the Current Report on Form 8-K filed by the Company on November 6, 2019).
23.1Consent of KPMG LLP, independent registered public accounting firm.
23.2Consent of Foley & Lardner LLP (included in Exhibit 5.1).
24.1Power of Attorney (included on signature page).

Item 17. Undertakings

Undertakings.

(a)        The undersigned Registrant hereby undertakes:

1.

(1)           To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:

(i)        To include any prospectus required by Section 10(a)(3) of the Securities Act;

Act of 1933;

(ii)        To reflect in the prospectus any facts or events arising after the effective date of the registration statementRegistration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement.Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement.

Registration Statement.

(iii)        To include any material information with respect to the plan of distribution not previously disclosed in the registration statementRegistration Statement or any material change to such information in the registration statement;

provided,Registration Statement;

Provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) above do not apply if the registration statement is on Form S-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrantRegistrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement,Registration Statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

2.Registration Statement.

(2)           That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statementRegistration Statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fideoffering thereof.

3.

(3)           To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

4.

(4)            That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

(a)each prospectus filed by the registrant If the Registrant is relying on Rule 430B:

A.        Each prospectus filed by the Registrant pursuant to Rule 424(b)(3)shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(b)
each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date; or
5. That, for the purpose of determining liability of the registrant underRegistration Statement as of the Securities Act to any purchaserdate the filed prospectus was deemed part of and included in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaserRegistration Statement; and will be considered to offer or sell such securities to such purchaser: (i) any preliminary


B.        Each prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424; (ii)424(b)(2), (b)(5), or (b)(7) as part of a Registration Statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the Registration Statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any free writing prospectusperson that is at that date an underwriter, such date shall be deemed to be a new effective date of the Registration Statement relating to the securities in the Registration Statement to which that prospectus relates, and the offering prepared byof such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a Registration Statement or on behalfprospectus that is part of the undersigned registrantRegistration Statement or usedmade in a document incorporated or referred todeemed incorporated by reference into the undersigned registrant; (iii) the portion of any other free writingRegistration Statement or prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalfthat is part of the undersigned registrant; and (iv)Registration Statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any other communicationstatement that is an offerwas made in the offeringRegistration Statement or prospectus that was part of the Registration Statement or made by the undersigned registrantin any such document immediately prior to the purchaser.

6.such effective date.

(b)        The undersigned registrantRegistrant hereby undertakes that: (i)that, for purposes of determining any liability under the Securities Act the information omitted from the form of prospectus filed as part1933, each filing of the registration statement in reliance upon Rule 430A and containedRegistrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of the registration statement as of the time it was declared effective; and (ii) for the purpose of determining any liability under the Securities Act, each post-effective amendment that contains a form of prospectusRegistration Statement shall be deemed to be a new registration statementRegistration Statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fideoffering thereof.

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7. The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
8.

(c)        Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers, and controlling persons of the registrantRegistrant pursuant to the foregoing provisions, or otherwise, the registrantRegistrant has been advised that in the opinion of the CommissionSEC such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrantRegistrant of expenses incurred or paid by a director, officer or controlling person of the registrantRegistrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrantRegistrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.


9. The undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the Commission under Section 305(b)(2) of the Trust Indenture Act.
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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrantRegistrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this amendment to the registration statement on Form S-3Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Danbury, State of Connecticut, on February 24, 2017.

June 29, 2020.

 FUELCELL ENERGY, INC.
  
 By:/s/ Michael S. Bishop
 Name:   Michael S. Bishop
 Title:SeniorExecutive Vice President, Chief Financial Officer Treasurer and Corporate SecretaryTreasurer


Such person whose signature appears below hereby appoints Jason Few and Michael S. Bishop, and each of them, each of whom may act without joinder of the other, as his or her true and lawful attorney-in-fact and agent, with full power and substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to execute in the name and on behalf of such person any amendment or any post-effective amendment to this Registration Statement, and any registration statement relating to any offering made in connection with the offering covered by this Registration Statement that is to be effective on filing pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and to file the same, with exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing appropriate or necessary to be done, as full and for all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or their substitute or substitutes may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statementRegistration Statement has been signed by the following persons in the capacities and on the dates indicated by Power of Attorney.

indicated.

SIGNATURESignature TITLETitle DATEDate
     
*
/s/ Jason Few
 President, Chief Executive Officer, Chief Commercial Officer, and Director (Principal Executive Officer) February 24, 2017June 29, 2020
Arthur A. BottoneJason Few (Principal Executive Officer)  
     
/s/ Michael S. Bishop
 SeniorExecutive Vice President, Chief Financial Officer, and Treasurer (Principal Financial Officer and Principal Accounting Officer) February 24, 2017June 29, 2020
Michael S. Bishop Corporate Secretary (Principal Accounting and Financial Officer)  
     
*
/s/ James H. England
 Director – Chairman of the Board February 24, 2017June 29, 2020
James H. England    
     
*
/s/ Matthew F. Hilzinger
 Director February 24, 2017June 29, 2020
Matthew F. Hilzinger    
     
*
Director – Chairman of the BoardFebruary 24, 2017
John A. Rolls
*
/s/ Natica von Althann
 Director February 24, 2017
Christopher S. Sotos
*
DirectorFebruary 24, 2017June 29, 2020
Natica von Althann    
     
*
/s/ Chris Groobey
 Director February 24, 2017June 29, 2020
Togo Dennis West, Jr.Chris Groobey    


*by /s/ Michael S. Bishop
Michael S. Bishop
Attorney-in-Fact
* Executed by Michael S. Bishop as attorney-in-fact pursuant to the power of attorney in the Registrant’s Form S-3 filed on January 12, 2017.
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INDEX OF EXHIBITS
Exhibit
No.
Description
  1.1Form of Underwriting Agreement*
  4Specimen of Common Share Certificate (incorporated by reference to Exhibit 4 to the Company’s Annual Report on Form 10K for its fiscal year ended October 31, 1999)
  4.2Form of Senior Indenture (incorporated by reference to Exhibit 4.2 to the Company’s Registration Statement on Form S-3, as filed with the SEC on January 9, 2015 (File No. 333-201427))
  4.3Form of Subordinated Indenture (incorporated by reference to Exhibit 4.3 to the Company’s Registration Statement on Form S-3, as filed with the SEC on January 9, 2015 (File No. 333-201427))
  4.4Form of Senior Debt Security*
  4.5Form of Subordinated Debt Security*
  4.6Form of Warrant Agreement*
  5.1Opinion of Patterson Belknap Webb & Tyler LLP**
12.1Statement of Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Dividends**
23.1Consent of Independent Registered Public Accounting Firm**
23.2Consent of Patterson Belknap Webb & Tyler LLP (included in Exhibit 5.1)**
24.1Power of Attorney (included on signature page of this registration statement)**
*To be filed by amendment or as an exhibit to a document filed under the Exchange Act, and incorporated herein by reference.
**Previously filed.
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