    <SEC-DOCUMENT>0001144204-18-047136-index.html : 20180829
    <SEC-HEADER>0001144204-18-047136.hdr.sgml : 20180829
    <ACCEPTANCE-DATETIME>20180829170144
    ACCESSION NUMBER:		0001144204-18-047136
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		10
    CONFORMED PERIOD OF REPORT:	20180827
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Material Modifications to Rights of Security Holders
    ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180829
    DATE AS OF CHANGE:		20180829

    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:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14204
    		FILM NUMBER:		181044876

    	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>8-K
    <SEQUENCE>1
    <FILENAME>tv501807_8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: tv501807_8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1.1
    <SEQUENCE>2
    <FILENAME>tv501807_ex1-1.htm
    <DESCRIPTION>EXHIBIT 1.1
    <TEXT>
    Document 2 - file: tv501807_ex1-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.1
    <SEQUENCE>3
    <FILENAME>tv501807_ex3-1.htm
    <DESCRIPTION>EXHIBIT 3.1
    <TEXT>
    Document 3 - file: tv501807_ex3-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.1
    <SEQUENCE>4
    <FILENAME>tv501807_ex4-1.htm
    <DESCRIPTION>EXHIBIT 4.1
    <TEXT>
    Document 4 - file: tv501807_ex4-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>5
    <FILENAME>tv501807_ex5-1.htm
    <DESCRIPTION>EXHIBIT 5.1
    <TEXT>
    Document 5 - file: tv501807_ex5-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>6
    <FILENAME>tv501807_ex10-1.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 6 - file: tv501807_ex10-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-12.1
    <SEQUENCE>7
    <FILENAME>tv501807_ex12-1.htm
    <DESCRIPTION>EXHIBIT 12.1
    <TEXT>
    Document 7 - file: tv501807_ex12-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>image_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: image_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>image_002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: image_002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>tv501807_ex5-1img1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: tv501807_ex5-1img1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>