<?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>0001844492</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001634447</issuerCik>
      <issuerName>ISUN, INC.</issuerName>
      <secFileNumber>001-37707</secFileNumber>
      <issuerAddress>
        <com:street1>400 AVE D</com:street1>
        <com:street2>SUITE 10</com:street2>
        <com:city>WILLISTON</com:city>
        <com:stateOrCountry>VT</com:stateOrCountry>
        <com:zipCode>05495</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>802-658-3378</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Meer Claudia Michel</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab Corporation</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>7250</noOfUnitsSold>
      <aggregateMarketValue>2069.00</aggregateMarketValue>
      <noOfUnitsOutstanding>30812884</noOfUnitsOutstanding>
      <approxSaleDate>09/18/2023</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/16/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3000</amountOfSecuritiesAcquired>
      <paymentDate>06/16/2021</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/31/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Equity Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4250</amountOfSecuritiesAcquired>
      <paymentDate>03/31/2021</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Equity comp acquisition and payment date range: 03/31/21 through 06/30/2022 This sale is occurring for tax purposes</remarks>
    <noticeSignature>
      <noticeDate>09/18/2023</noticeDate>
      <signature>CLAUDIA M MEER</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
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144
0001844492
XXXXXXXX
LIVE
0001634447
ISUN, INC.
001-37707
400 AVE D
SUITE 10
WILLISTON
VT
05495
802-658-3378
Meer Claudia Michel
Officer
Common
Charles Schwab Corporation
3000 Schwab Way
Westlake
TX
76262
7250
2069.00
30812884
09/18/2023
Nasdaq
Common
06/16/2021
Open Market Purchase
Open Market
N
3000
06/16/2021
Cash
Common
03/31/2021
Equity Compensation
Issuer
N
4250
03/31/2021
N/A
Y
Equity comp acquisition and payment date range: 03/31/21 through 06/30/2022 This sale is occurring for tax purposes
09/18/2023
CLAUDIA M MEER