<SEC-DOCUMENT>0001193805-17-000617.txt : 20170411
<SEC-HEADER>0001193805-17-000617.hdr.sgml : 20170411
<ACCEPTANCE-DATETIME>20170411164338
ACCESSION NUMBER:		0001193805-17-000617
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20170411
DATE AS OF CHANGE:		20170411
EFFECTIVENESS DATE:		20170411

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FUELCELL ENERGY INC
		CENTRAL INDEX KEY:			0000886128
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				060853042
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-217250
		FILM NUMBER:		17756352

	BUSINESS ADDRESS:	
		STREET 1:		3 GREAT PASTURE RD
		CITY:			DANBURY
		STATE:			CT
		ZIP:			06813
		BUSINESS PHONE:		2038256000

	MAIL ADDRESS:	
		STREET 1:		3 GREAT PASTURE ROAD
		CITY:			DANBURY
		STATE:			CT
		ZIP:			06813

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ENERGY RESEARCH CORP /NY/
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>e616015_s8-fuelcell.htm
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<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>As Filed with
the Securities and Exchange Commission on April 11, 2017.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: right"><B>REGISTRATION NO. 333-________</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>_______________</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM S-8</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>REGISTRATION STATEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>UNDER</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>THE SECURITIES ACT OF 1933</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>_______________</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>FUELCELL ENERGY, INC.</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>(Exact Name of Registrant as Specified
in Its Charter)</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>_____________________</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 50%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B><U>Delaware</U></B></P>
                           <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B><I>(State or Other
Jurisdiction of</I></B></P>

<P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B><I>Incorporation or Organization)</I></B></P>



</TD>
    <TD STYLE="width: 50%"><P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B><U>06-0853042</U></B></P>

<P STYLE="margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B><I>(I.R.S. Employer Identification No.)</I></B></P>


</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font-size: 10pt; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 50%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>3 Great Pasture Road, Danbury,
Connecticut</U></B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>(Address of Principal Executive
Offices)</I></B></P></TD>
    <TD STYLE="width: 50%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>06813</U></B>&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt"><B><I>(Zip
Code</I></B></FONT>)&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U STYLE="text-decoration: none">&nbsp;</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>FuelCell Energy, Inc. Amended and
Restated 2010 Equity Incentive Plan</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>(Full Title of Plan)</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Arthur A. Bottone</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>President and Chief Executive Officer</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FuelCell Energy, Inc.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>3 Great Pasture Road</B>&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>Danbury, Connecticut 06813</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>(Name and Address of Agent for Service)</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>(203) 825-6000</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>(Telephone Number, Including Area
Code, of Agent for Service)</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">___________________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &ldquo;large accelerated
filer,&rdquo; &ldquo;accelerated filer&rdquo; and &ldquo;smaller reporting company&rdquo; in Rule 12b-2 of the Exchange Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font-size: 10pt; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 27%; font-size: 10pt">Large&nbsp;accelerated&nbsp;filer</TD>
    <TD STYLE="width: 44%; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD>
    <TD STYLE="width: 26%; font-size: 10pt">Accelerated&nbsp;filer</TD>
    <TD STYLE="width: 3%; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&yacute;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt">Non-accelerated filer</TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&uml;</FONT>&nbsp;(Do not check if a smaller reporting company)</TD>
    <TD STYLE="font-size: 10pt">Smaller&nbsp;reporting&nbsp;company</TD>
    <TD>
        <P STYLE="font: 10pt Wingdings; margin: 0pt 0">&uml;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">__________________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Copies of All Communications to:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font-size: 10pt; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 50%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Peter J. Schaeffer, Esq.</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Patterson Belknap Webb &amp;
Tyler LLP</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>1133 Avenue of the Americas</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>New York, New York 10036</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(212) 336-2000</B></P></TD>
    <TD STYLE="width: 50%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Richard A. Krantz, Esq.</B>&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Robinson&nbsp;&amp; Cole LLP</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>666 Third Avenue</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>New York, New York 10017</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(212) 451-2900</B></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CALCULATION OF REGISTRATION FEE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font-size: 10pt; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD COLSPAN="9">
<!-- Field: Rule-Page --><DIV ALIGN="LEFT" STYLE="margin-top: 1pt; margin-bottom: 1pt"><DIV STYLE="font-size: 1pt; width: 100%">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 44%; border-top: black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Title of Securities To Be Registered(1)</B></FONT></TD>
    <TD STYLE="width: 1%; border-top: black 1pt solid; border-left: black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 13%; border-top: black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Amount</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>To Be</B><BR>
<B>Registered(2)</B>&nbsp;</P></TD>
    <TD STYLE="width: 1%; border-top: black 1pt solid; border-left: black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 13%; border-top: black 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Proposed</B></FONT><BR>
<FONT STYLE="font-size: 10pt"><B>Maximum</B></FONT><BR>
<FONT STYLE="font-size: 10pt"><B>Offering Price</B></FONT><BR>
<FONT STYLE="font-size: 10pt"><B>Per Share(3)</B></FONT></TD>
    <TD STYLE="width: 1%; border-top: black 1pt solid; border-left: black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 13%; border-top: black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Proposed</B><BR>
<B>Maximum</B><BR>
<B>Aggregate</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Offering&nbsp;Price(3)</B></P></TD>
    <TD STYLE="width: 1%; border-top: black 1pt solid; border-left: black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 13%; border-top: black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Amount&nbsp;of</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Registration&nbsp;Fee(3)</B></P></TD></TR>
<TR>
    <TD STYLE="vertical-align: top; border-top: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt">Common Stock, par value $.0001 per share</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center">2,000,000</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT>$1.38</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT>$2,760,000</FONT></TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-top: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><FONT>$319.88</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(1)</FONT>
Pursuant to Rule 416(c) under the Securities Act of 1933, as amended (&ldquo;Securities Act&rdquo;), this Registration Statement
also covers an indeterminate amount of interests to be offered or sold pursuant to the FuelCell Energy, Inc. Amended and Restated
2010 Equity Incentive Plan (the &ldquo;Plan&rdquo;) described herein.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(2)</FONT>
Estimated maximum aggregate number of shares of common stock of FuelCell Energy, Inc. (&ldquo;registrant&rdquo;) available for
issuance under the Plan. Pursuant to Rule 416 of the Securities Act, this Registration Statement shall also cover an additional
indeterminate number of shares of common stock of the registrant as may be required pursuant to the Plan in the event of a stock
dividend, stock split, recapitalization or other similar transaction without the receipt of consideration which results in an increase
in the number of the registrant&rsquo;s outstanding shares of common stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-size: 10pt">(3)</FONT>
Estimated solely for the purpose of calculating the registration fee and are based on the average of high and low prices of the
common stock of registrant on the Nasdaq Global Market on April <FONT>11</FONT>, 2017,
in accordance with Rule 457(c) under the Securities Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXPLANATORY NOTE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This Registration Statement relates to 2,000,000 shares of common
stock, par value $.0001 per share, of FuelCell Energy, Inc. (the &ldquo;Company&rdquo; or the &ldquo;Registrant&rdquo;) that may
be offered or sold to participants of the FuelCell Energy, Inc. Amended and Restated 2010 Equity Incentive Plan (the &ldquo;Plan&rdquo;).
The Plan was amended to add these additional shares at the Annual Meeting of Shareholders of the Company held on April 6, 2017.
Pursuant to General Instruction E to Form S-8, the contents of the previous registration statements relating to the Plan (File
No. 333-166164, filed on April 19, 2010; File No. 333-181021, filed on April 27, 2012; File No. 333-195848, filed on May 9, 2014;
File No. 333-211092, filed on May 3, 2016) are incorporated by reference herein and made a part of this Registration Statement,
except as amended hereby.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PART II</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION REQUIRED IN THE REGISTRATION
STATEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 3. Incorporation of Documents by Reference.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The following documents filed with the Securities
and Exchange Commission are incorporated by reference in this Registration Statement:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>Our Annual Report on Form 10-K for the fiscal year ended October&nbsp;31, 2016, filed on January 12, 2017;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">2.</TD><TD>Our Proxy Statement for our shareholders&rsquo; meeting on April 6, 2017, filed on February&nbsp;17, 2017;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">3.</TD><TD>Our Quarterly Report on Form 10-Q for the quarter ended January&nbsp;31, 2017, filed on March&nbsp;9, 2017;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">4.</TD><TD>Our Current Reports on Form 8-K filed November 4, 2016, December
1, 2016, December 20, 2016, January 12, 2017, March 9, 2017, March 21, 2017, and April 10, 2017; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">5.</TD><TD>The description of our common stock set forth in our registration statement on Form 8-A, filed with the Securities and Exchange
Commission on June&nbsp;6, 2000, including any amendments or reports filed for the purposes of updating this description.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In addition to the foregoing, all documents
subsequently filed by the Company with the Securities and Exchange Commission pursuant to Sections 13(a), 13(c), 14 and 15(d) of
the Securities Exchange Act of 1934, as amended, prior to the filing of a post-effective amendment which indicates that all securities
offered under this Registration Statement have been sold or which deregisters all securities remaining unsold, shall be deemed
to be incorporated by reference into this Registration Statement and to be a part of this Registration Statement from the date
of filing of such documents. Any statement contained in a document incorporated by reference in this Registration Statement shall
be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein
or in any subsequently filed document that is also incorporated by reference herein modifies or supersedes such statement. Any
statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration
Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item&nbsp;8. Exhibits.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The following exhibits are included or incorporated
herein by reference:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 6%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Exhibit</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>No.</B></P></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: center; width: 92%"><FONT STYLE="font-size: 10pt"><B>Description</B></FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>4</TD>
    <TD>&nbsp;</TD>
    <TD>Specimen of Common Share Certificate (incorporated by reference to exhibit of the same number contained in the Company&rsquo;s Annual Report on Form 10K/A for its fiscal year ended October 31, 1999)</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>5.1</TD>
    <TD>&nbsp;</TD>
    <TD>Opinion of Patterson Belknap Webb &amp; Tyler LLP</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>23.1</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of KPMG LLP, Independent Registered Public Accounting Firm</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>23.2</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of Patterson Belknap Webb &amp; Tyler LLP (included in Exhibit 5.1)</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>24.1</TD>
    <TD>&nbsp;</TD>
    <TD>Power of Attorney (included on the signature page hereof)</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>FuelCell Energy, Inc. Amended and Restated 2010 Equity Incentive Plan (as amended and restated, effective April 6, 2017) (incorporated by reference to Annex A of the Company&rsquo;s Proxy Statement filed on February 17, 2017)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Act of 1933,
as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing
on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized,
in the City of Danbury, State of Connecticut on April 11, 2017.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">FUELCELL ENERGY, INC.</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 46%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="width: 38%">&nbsp;</TD>
    <TD STYLE="width: 12%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Arthur A. Bottone</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Arthur A. Bottone&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">President and&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Chief Executive Officer&nbsp;</P></TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">POWER OF ATTORNEY</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Arthur A. Bottone and Michael S. Bishop, and each of them, as his/her true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place, and stead, in any and all
capacities, to sign any and all amendments (including post-effective amendments, exhibits thereto and other documents in connection
therewith) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith
(including any registration statement relating to this Registration Statement and filed pursuant to Rule 462(b) of the Securities
Act of 1933, as amended), with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each
of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection
therewith, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all that
said attorneys-in-fact and agents, or either of them, or their or his substitute or substitutes, may lawfully do or cause to be
done by virtue hereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Act of 1933,
as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; width: 37%"><FONT STYLE="font-size: 10pt">SIGNATURE</FONT></TD>
    <TD STYLE="text-align: center; width: 48%"><FONT STYLE="font-size: 10pt">TITLE</FONT></TD>
    <TD STYLE="text-align: center; width: 15%"><FONT STYLE="font-size: 10pt">DATE</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Arthur A. Bottone</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; vertical-align: top">Arthur A. Bottone</TD>
    <TD>President and Chief Executive Officer (Principal Executive Officer)</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Michael S. Bishop</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: left; vertical-align: top">Michael S. Bishop</TD>
    <TD>Senior Vice President, Chief Financial Officer and Treasurer (Principal Accounting and Financial Officer)</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ James Herbert England</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>James Herbert England</TD>
    <TD>Director</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Matthew F. Hilzinger</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>Matthew F. Hilzinger</TD>
    <TD>Director</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ John A. Rolls</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>John A. Rolls</TD>
    <TD>Director&nbsp;- Chairman of the Board</TD>
    <TD STYLE="text-align: right">April 6, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Christopher S. Sotos</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>Christopher S. Sotos</TD>
    <TD>Director</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Togo Dennis West, Jr.</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>Togo Dennis West, Jr.</TD>
    <TD>Director</TD>
    <TD STYLE="text-align: right">April 11, 2017</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Natica von Althann</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>Natica von Althann</TD>
    <TD>Director</TD>
    <TD STYLE="text-align: right">April 6, 2017</TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 6%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Exhibit</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>No.</B></P></TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: center; width: 91%"><FONT STYLE="font-size: 10pt"><B>Description</B></FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">4</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Specimen of Common Share Certificate (incorporated by reference to exhibit of the same number contained in the Company&rsquo;s Annual Report on Form 10K/A for its fiscal year ended October 31, 1999)</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">5.1</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Opinion of Patterson Belknap Webb &amp; Tyler LLP</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">23.1</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Consent of KPMG LLP, Independent Registered Public Accounting Firm</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">23.2</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Consent of Patterson Belknap Webb &amp; Tyler LLP (included in Exhibit 5.1)</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">24.1</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Power of Attorney (included on the signature page hereof)</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">99.1</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">FuelCell Energy, Inc. Amended and Restated 2010 Equity Incentive Plan (as amended and restated, effective April 6, 2017) (incorporated by reference to Annex A of the Company&rsquo;s Proxy Statement filed on February 17, 2017)</TD></TR>
</TABLE>


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<TYPE>EX-5.1
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<FILENAME>e616015_ex5-1.htm
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: right"><B><U>Exhibit 5.1</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Letterhead of Patterson Belknap Webb &amp;
Tyler LLP</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">April 11, 2017</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">FuelCell Energy, Inc.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">3 Great Pasture Road</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Danbury, Connecticut 06813</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.8in; text-align: right">Re:</TD><TD STYLE="width: 0.2in"></TD><TD STYLE="text-align: justify"><U>Registration Statement on Form S-8</U></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Ladies and Gentlemen:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">We have acted as counsel to FuelCell Energy,
Inc, a Delaware corporation (the &ldquo;<U>Company</U>&rdquo;), in connection with the preparation of a Registration Statement
on Form S-8 to be filed with the Securities and Exchange Commission (the &ldquo;<U>Registration Statement</U>&rdquo;) with respect
to the registration under the Securities Act of 1933, as amended (the &ldquo;<U>Securities Act</U>&rdquo;), of 2,000,000 shares
(the &ldquo;<U>Shares</U>&rdquo;) of Common Stock, $.0001 par value per Share, of the Company, subject to issuance by the Company
upon exercise or settlement of awards granted under the FuelCell Energy, Inc. Amended and Restated 2010 Equity Incentive Plan (the
&ldquo;<U>Plan</U>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">This opinion is being delivered in accordance
with the requirements of Item&nbsp;601(b)(5) of Regulation S-K.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">We have examined originals or certified
copies of such corporate records, certificates of officers of the Company and/or public officials and such other documents and
have made such other factual and legal investigations as we have deemed relevant and necessary as the basis for the opinions set
forth below.&nbsp;In such examination, we have assumed the genuineness of all signatures, the authenticity of all documents submitted
to us as originals, the conformity to original documents of all documents submitted to us as conformed or photostatic copies and
the authenticity of the originals of such copies.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Based upon our foregoing examination, subject
to the assumptions stated above and relying on the statements of fact contained in the documents that we have examined, we are
of the opinion that (i)&nbsp;the issuance by the Company of the Shares has been duly authorized and (ii)&nbsp;when issued in accordance
with the terms of the Plan, the Shares will be duly and validly issued, fully paid and non-assessable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">We are qualified to practice law only in
the State of New York. We are not qualified and do not express any opinion herein as to the laws of any other jurisdiction, except
the federal laws of the United States and, to the extent required by the foregoing opinions, the Delaware General Corporation Law.
Otherwise, to the extent this opinion deals with matters governed by or relating to the laws of any State other than New York,
we have assumed that such laws are identical to the internal substantive laws of the State of New York.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">We hereby consent to the filing of this
opinion as an exhibit to the Registration Statement, including the prospectus or any supplement to the prospectus, constituting
a part thereof, as originally filed or subsequently amended.&nbsp;In giving this consent, we do not thereby admit that we are within
the category of persons whose consent is required under Section&nbsp;7 of the Securities Act, or the rules and regulations of the
Securities and Exchange Commission.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font-size: 10pt; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Very truly yours,</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Patterson Belknap Webb &amp; Tyler
LLP</P></TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
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    <TD STYLE="width: 4%; font-size: 10pt">By:</TD>
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/s/ Peter J. Schaeffer</P></TD>
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    <TD STYLE="font-size: 10pt; text-align: right">Peter J. Schaeffer</TD>
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<TYPE>EX-23.1
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"><B><U>Exhibit 23.1</U></B></P>

<P STYLE="margin: 0pt 0">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Consent of Independent Registered Public
Accounting Firm</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Board of Directors<BR>
FuelCell Energy, Inc:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We consent to the use of our report dated
January 12, 2017, with respect to the consolidated balance sheets of FuelCell Energy, Inc. and subsidiaries as of October&nbsp;31,
2016 and 2015, and the related consolidated statements of operations and comprehensive loss, changes in equity (deficit) and cash
flows for each of the years in the three-year period ended October&nbsp;31, 2016 and the effectiveness of internal control over
financial reporting as of October&nbsp;31, 2016, incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">/s/ KPMG LLP<BR>
<BR>
Hartford, Connecticut<BR>
April 11, 2017</P>

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