    <SEC-DOCUMENT>0001047469-17-005923-index.html : 20170918
    <SEC-HEADER>0001047469-17-005923.hdr.sgml : 20170918
    <ACCEPTANCE-DATETIME>20170918164110
    ACCESSION NUMBER:		0001047469-17-005923
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20171023
    FILED AS OF DATE:		20170918
    DATE AS OF CHANGE:		20170918
    EFFECTIVENESS DATE:		20170918

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34392
    		FILM NUMBER:		171090234

    	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>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>a2233315zdef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: a2233315zdef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g213822cci001.gif
    <DESCRIPTION>G213822CCI001.GIF
    <TEXT>
    Document 2 - file: g213822cci001.gif

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g213822cci002.gif
    <DESCRIPTION>G213822CCI002.GIF
    <TEXT>
    Document 3 - file: g213822cci002.gif

    </DOCUMENT>
    </SEC-DOCUMENT>