<SEC-DOCUMENT>0001558370-22-009414-index.html : 20220526
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<ACCEPTANCE-DATETIME>20220526170050
ACCESSION NUMBER:		0001558370-22-009414
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
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<RULE-NAME>13p-1
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<ITEM-NUMBER>1.01
<ITEM-PERIOD>20211231
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FILED AS OF DATE:		20220526
DATE AS OF CHANGE:		20220526

FILER:

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

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14204
		FILM NUMBER:		22971093

	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>SD
<SEQUENCE>1
<FILENAME>tmb-20220526xsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: tmb-20220526xsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>tmb-20220526xex1d01.htm
<DESCRIPTION>EX-1.01
<TEXT>
Document 2 - file: tmb-20220526xex1d01.htm

</DOCUMENT>
</SEC-DOCUMENT>