content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001893770</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001093691</issuerCik>
        <issuerName>PLUG POWER INC</issuerName>
        <secFileNumber>001-34392</secFileNumber>
        <issuerAddress>
          <com:street1>125 VISTA BOULEVARD</com:street1>
          <com:city>SLINGERLANDS</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>12159</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>5187827700</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Crespo Jose Luis</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>RBC CAPITAL MARKETS LLC </name>
          <address>
            <com:street1>250 NICOLLET MALL</com:street1>
            <com:city>MINNEAPOLIS</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55401</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>37300</noOfUnitsSold>
        <aggregateMarketValue>49236.00</aggregateMarketValue>
        <noOfUnitsOutstanding>1078344508</noOfUnitsOutstanding>
        <approxSaleDate>06/11/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <acquiredDate>08/19/2022</acquiredDate>
        <natureOfAcquisitionTransaction>RSU VEST</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>32516</amountOfSecuritiesAcquired>
        <paymentDate>08/19/2022</paymentDate>
        <natureOfPayment>COMPENSATION</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON</securitiesClassTitle>
        <acquiredDate>09/28/2021</acquiredDate>
        <natureOfAcquisitionTransaction>RSU VEST</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4784</amountOfSecuritiesAcquired>
        <paymentDate>09/28/2021</paymentDate>
        <natureOfPayment>COMPENSATION</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>SOLD PURSUANT TO A RULE 10B5-1 PLAN ESTABLISHED 03/13/2025</remarks>
      <noticeSignature>
        <noticeDate>06/11/2025</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>03/13/2025</planAdoptionDate>
        </planAdoptionDates>
        <signature>POA / JEFFREY EISCHENS</signature>
      </noticeSignature>
    </formData>
  
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3419}]
text: 144
  0001893770
  XXXXXXXX
  LIVE
  0001093691
  PLUG POWER INC
  001-34392
  125 VISTA BOULEVARD
  SLINGERLANDS
  NY
  12159
  5187827700
  Crespo Jose Luis
  Officer
  COMMON
  RBC CAPITAL MARKETS LLC
  250 NICOLLET MALL
  MINNEAPOLIS
  MN
  55401
  37300
  49236.00
  1078344508
  06/11/2025
  NASDAQ
  COMMON
  08/19/2022
  RSU VEST
  ISSUER
  N
  32516
  08/19/2022
  COMPENSATION
  COMMON
  09/28/2021
  RSU VEST
  ISSUER
  N
  4784
  09/28/2021
  COMPENSATION
  Y
  SOLD PURSUANT TO A RULE 10B5-1 PLAN ESTABLISHED 03/13/2025
  06/11/2025
  03/13/2025
  POA / JEFFREY EISCHENS