    <SEC-DOCUMENT>0001104659-20-024284-index.html : 20200224
    <SEC-HEADER>0001104659-20-024284.hdr.sgml : 20200224
    <ACCEPTANCE-DATETIME>20200224163708
    ACCESSION NUMBER:		0001104659-20-024284
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		6
    FILED AS OF DATE:		20200224
    DATE AS OF CHANGE:		20200224
    EFFECTIVENESS DATE:		20200224

    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14204
    		FILM NUMBER:		20644870

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>tm207232d3_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: tm207232d3_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>tm207232d3_defa14aimg001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: tm207232d3_defa14aimg001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>tm207232d3_defa14aimg002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: tm207232d3_defa14aimg002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>tm207232d3_defa14aimg003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: tm207232d3_defa14aimg003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>tm207232d3_defa14aimg004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: tm207232d3_defa14aimg004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tm207232d3_defa14aimg005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: tm207232d3_defa14aimg005.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>