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        <filer>
          <filerCredentials>
            <cik>0001398532</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
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      <issuerInfo>
        <issuerCik>0001805077</issuerCik>
        <issuerName>Eos Energy Enterprises, Inc.</issuerName>
        <secFileNumber>001-39291</secFileNumber>
        <issuerAddress>
          <com:street1>3920 Park Avenue</com:street1>
          <com:city>Edison</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08820</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>7322258400</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>John Tedone</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>UBS Financial Services Inc</name>
          <address>
            <com:street1>1000 Harbor Blvd</com:street1>
            <com:street2>3rd Floor</com:street2>
            <com:city>Weehawken</com:city>
            <com:stateOrCountry>NJ</com:stateOrCountry>
            <com:zipCode>07086</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>50000</noOfUnitsSold>
        <aggregateMarketValue>104550</aggregateMarketValue>
        <noOfUnitsOutstanding>115848976</noOfUnitsOutstanding>
        <approxSaleDate>05/18/2023</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/16/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Eos Energy Enterprises, Inc.</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>50000</amountOfSecuritiesAcquired>
        <paymentDate>05/18/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/18/2023</noticeDate>
        <signature>/s/ UBS Financial Services Inc, as attorney-in-fact for John Tedone</signature>
      </noticeSignature>
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text: 144
  0001398532
  XXXXXXXX
  LIVE
  0001805077
  Eos Energy Enterprises, Inc.
  001-39291
  3920 Park Avenue
  Edison
  NJ
  08820
  7322258400
  John Tedone
  Officer
  Common
  UBS Financial Services Inc
  1000 Harbor Blvd
  3rd Floor
  Weehawken
  NJ
  07086
  50000
  104550
  115848976
  05/18/2023
  NASDAQ
  Common
  06/16/2022
  Stock Option Vest
  Eos Energy Enterprises, Inc.
  N
  50000
  05/18/2023
  Cash
  Y
  05/18/2023
  /s/ UBS Financial Services Inc, as attorney-in-fact for John Tedone