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<PERIOD>20230221
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<CONFORMED-NAME>Atlantica Sustainable Infrastructure plc
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<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>X0
<FISCAL-YEAR-END>1231
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<ACT>34
<FILE-NUMBER>001-36487
<FILM-NUMBER>23645293
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<BUSINESS-ADDRESS>
<STREET1>GREAT WEST HOUSE, GW1, 17TH FLOOR
<STREET2>GREAT WEST ROAD
<CITY>BRENTFORD
<STATE>X0
<ZIP>TW8 9DF
<PHONE>44 20 7098 4384
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<STREET1>GREAT WEST HOUSE, GW1, 17TH FLOOR
<STREET2>GREAT WEST ROAD
<CITY>BRENTFORD
<STATE>X0
<ZIP>TW8 9DF
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<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>brhc10048512_6k.htm
<DESCRIPTION>6-K
<TEXT>
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      <div style="text-align: center; font-size: 14pt; font-weight: bold;">UNITED STATES</div>
      <div style="text-align: center; font-size: 14pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>
      <div style="text-align: center; font-size: 12pt; font-weight: bold;">Washington, D.C. 20549</div>
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      <div style="text-align: center; font-size: 18pt;">FORM 6-K</div>
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      <div style="text-align: center; font-weight: bold;">REPORT OF FOREIGN PRIVATE ISSUER</div>
      <div style="text-align: center; font-weight: bold;">PURSUANT TO RULE 13a-16 OR 15d-16</div>
      <div style="text-align: center; font-weight: bold;">UNDER THE SECURITIES EXCHANGE ACT OF 1934</div>
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      <div style="text-align: center; font-weight: bold;">For the month of February, 2023</div>
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      <div style="text-align: center; font-weight: bold;">Commission File Number 001-36487</div>
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      <div style="text-align: center; font-size: 24pt; font-weight: bold;">Atlantica Sustainable Infrastructure plc<br>
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      <div style="text-align: center; font-style: italic;">(Exact name of Registrant as specified in its charter)</div>
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      <div style="text-align: center; font-weight: bold;">Not applicable</div>
      <div style="text-align: center;">(Translation of Registrant&#8217;s name into English)</div>
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      <div style="text-align: center; font-weight: bold;">Great West House, GW1, 17th floor</div>
      <div style="text-align: center; font-weight: bold;">Great West Road</div>
      <div style="text-align: center; font-weight: bold;">Brentford, TW8 9DF</div>
      <div style="text-align: center; font-weight: bold;">United Kingdom</div>
      <div style="text-align: center; font-weight: bold;">Tel: +44 203 499 0465</div>
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      <div>Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:</div>
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              <div style="text-align: right;">&#9746;&#160; Form 20-F</div>
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              <div>&#9744;&#160; Form 40-F</div>
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      <div>Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):&#160; &#9744;</div>
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      <div>Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):&#160; &#9744;</div>
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          <div style="text-align: center; margin-right: 36.75pt; margin-left: 35.45pt; color: rgb(0, 0, 0); font-family: 'Times New Roman',Times,serif; font-weight: bold;">Atlantica Sustainable Infrastructure Commences Review of Strategic Alternatives</div>
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          <div style="text-align: justify; color: rgb(0, 0, 0);">February 21, 2023 &#8211;Atlantica Sustainable Infrastructure plc (&#8220;Atlantica&#8221; or the &#8220;Company&#8221;) today announced that its board of directors has commenced a process to explore and evaluate
            potential strategic alternatives that may be available to Atlantica to maximize shareholder value.</div>
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          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">The Company believes it has attractive growth and other opportunities in front of it and is committed to ensuring that its diversified portfolio of assets and growth platform is best
            positioned to take advantage of those opportunities.</div>
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          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">The decision of Atlantica&#8217;s board of directors to explore strategic alternatives has the support of the Company&#8217;s largest shareholder, Algonquin Power &amp; Utilities Corp.</div>
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          <div style="text-align: justify; color: rgb(0, 0, 0);">Atlantica expects to continue executing on its existing plans while the review of strategic alternatives is ongoing, including its current growth plan and its focus on continuing to invest in
            accretive growth opportunities.</div>
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          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">There can be no assurance that the strategic review process will lead to the approval or completion of any transaction or other strategic change.&#160; Atlantica does not currently intend to
            provide any updates with respect to this process unless and until its board of directors approves a specific transaction or other strategic change or otherwise concludes the review of strategic alternatives.</div>
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          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">Citi is acting as the Company&#8217;s financial advisor.</div>
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          <div style="text-align: justify; color: rgb(0, 0, 0); font-weight: bold;">About Atlantica</div>
          <div><br>
          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">Atlantica Sustainable Infrastructure plc is a sustainable infrastructure company that owns a diversified portfolio of contracted renewable energy, storage, efficient natural gas, electric
            transmission and water assets in North &amp; South America, and certain markets in EMEA (www.atlantica.com).</div>
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                    <div style="color: rgb(0, 0, 0); font-weight: bold;">Chief Financial Officer</div>
                    <div style="color: rgb(0, 0, 0);">Francisco Martinez-Davis</div>
                    <div style="color: rgb(0, 79, 95); font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0);">E </font><font style="font-size: 10pt; color: rgb(0, 0, 0);">ir@atlantica.com</font></div>
                  </div>
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                <td style="width: 50%; text-align: left; vertical-align: top;">
                  <div style="color: rgb(0, 0, 0); font-weight: bold;">Investor Relations &amp; Communication</div>
                  <div style="color: rgb(0, 0, 0);">Leire Perez</div>
                  <div style="color: rgb(0, 79, 95); font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0);">E </font><font style="font-size: 10pt; color: rgb(0, 0, 0);">ir@atlantica.com</font></div>
                  <div style="color: rgb(0, 79, 95); font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0);">T</font><font style="font-size: 10pt; color: rgb(0, 0, 0);"> +44 20 3499 0465</font></div>
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          <div style="text-align: justify; color: rgb(0, 0, 0); font-weight: bold;">Forward-Looking Statements</div>
          <div><br>
          </div>
          <div style="text-align: justify; color: rgb(0, 0, 0);">This communication contains forward-looking statements. These forward-looking statements include, but are not limited to, all statements other than statements of historical facts contained in
            this communication, including, without limitation, those regarding our future financial position and results of operations, our strategy, plans, objectives, goals and targets, future developments in the markets in which we operate or are
            seeking to operate or anticipated regulatory changes in the markets in which we operate or intend to operate. In some cases, you can identify forward-looking statements by terminology such as "anticipate," "believe," "continue," "could,"
            "estimate," "expect," "guidance," "may," &#8220;plan,&#8221; "should," "strategic," &#8220;target,&#8221; or "will" or the negative of such terms or other similar expressions or terminology.</div>
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          <div style="text-align: justify; color: rgb(0, 0, 0);">By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. Forward-looking
            statements speak only as of the date of this communication and are not guarantees of future performance and are based on numerous assumptions. Our actual results of operations, financial condition and the development of events may differ
            materially from (and be more negative than) those made in, or suggested by, the forward-looking statements. Except as required by law, we do not undertake any obligation to update any forward-looking statements to reflect events or
            circumstances after the date hereof or to reflect anticipated or unanticipated events or circumstances. Investors should read the section entitled "Item 3.D&#8212;Risk Factors" and the description of our segments and business sectors in the section
            entitled "Item 4.B. Information of the Company&#8212;Business Overview," each in Part I of our Annual Report on Form 20-F for the year ended December 31, 2021, filed with the Securities and Exchange Commission (&#8220;SEC&#8221;), for a more complete discussion
            of the risks and factors that could affect us. In particular, this communication discusses a process to explore and evaluate potential strategic alternatives. There can be no assurance that the strategic review process will lead to the approval
            or completion of any transaction or other strategic change.</div>
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        <div style="text-align: center;"><font style="font-weight: bold;">SIGNATURES</font></div>
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          <div style="text-indent: 27pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</div>
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                  <div>Atlantica Sustainable Infrastructure plc</div>
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                <td style="width: 50%; vertical-align: top;">&#160;</td>
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                  <div>Date: February 21, 2023</div>
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                  <div>By:</div>
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                  <div>/s/ Santiago Seage</div>
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                  <div>Name:</div>
                </td>
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                  <div>Santiago Seage</div>
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                <td style="width: 50%; vertical-align: top;">&#160;</td>
                <td style="width: 5%; vertical-align: top;">&#160;</td>
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                  <div>Title:</div>
                </td>
                <td style="width: 40%; vertical-align: top;">
                  <div>Chief Executive Officer</div>
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