<SEC-DOCUMENT>0001104659-21-094577-index.html : 20210721
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<ACCEPTANCE-DATETIME>20210721212446
ACCESSION NUMBER:		0001104659-21-094577
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210715
FILED AS OF DATE:		20210721
DATE AS OF CHANGE:		20210721

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HELMER MAUREEN O
		CENTRAL INDEX KEY:			0001279977

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34392
		FILM NUMBER:		211105823

	MAIL ADDRESS:	
		STREET 1:		12 WEMBLY COURT
		CITY:			DELMAR
		STATE:			NY
		ZIP:			12054

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PLUG POWER INC
		CENTRAL INDEX KEY:			0001093691
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL INDUSTRIAL APPARATUS [3620]
		IRS NUMBER:				223672377
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		968 ALBANY-SHAKER ROAD
		CITY:			LATHAM
		STATE:			NY
		ZIP:			12110
		BUSINESS PHONE:		5187827700

	MAIL ADDRESS:	
		STREET 1:		968 ALBANY-SHAKER ROAD
		CITY:			LATHAM
		STATE:			NY
		ZIP:			12110
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm2122379-8_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm2122379-8_4seq1.html

Document 1 - RAW XML: tm2122379-8_4seq1.xml

</DOCUMENT>
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