    <SEC-DOCUMENT>0001558370-24-001311-index.html : 20240216
    <SEC-HEADER>0001558370-24-001311.hdr.sgml : 20240216
    <ACCEPTANCE-DATETIME>20240216171025
    ACCESSION NUMBER:		0001558370-24-001311
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231031
    FILED AS OF DATE:		20240216
    DATE AS OF CHANGE:		20240216
    EFFECTIVENESS DATE:		20240216

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FUELCELL ENERGY INC
    		CENTRAL INDEX KEY:			0000886128
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL INDUSTRIAL APPARATUS [3620]
    		ORGANIZATION NAME:           	04 Manufacturing
    		IRS NUMBER:				060853042
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1031

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14204
    		FILM NUMBER:		24649433

    	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>ARS
    <SEQUENCE>1
    <FILENAME>fcel-20231031xars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: fcel-20231031xars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>