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United States securities and exchange commission logo





                            November 9, 2021

       Patrick C. Eilers
       Chief Executive Officer
       Power & Digital Infrastructure Acquisition Corp.
       321 North Clark Street, Suite 2440
       Chicago, IL 60654

                                                        Re: Power & Digital
Infrastructure Acquisition Corp.
                                                            Amendment No. 2 to
Registration Statement on Form S-4
                                                            Filed October 29,
2021
                                                            File No. 333-258720

       Dear Mr. Eilers:

             We have reviewed your amended registration statement and have the
following
       comments. In some of our comments, we may ask you to provide us with
information so we
       may better understand your disclosure.

              Please respond to this letter by amending your registration
statement and providing the
       requested information. If you do not believe our comments apply to your
facts and
       circumstances or do not believe an amendment is appropriate, please tell
us why in your
       response.

              After reviewing any amendment to your registration statement and
the information you
       provide in response to these comments, we may have additional comments.
Unless we note
       otherwise, our references to prior comments are to comments in our
October 25, 2021 letter.

       Amendment No. 1 to Registration Statement on Form S-4 filed October 29,
2021

       Merger Adjustments to Unaudited Pro Forma Condensed Combined Statements
of Operations
       5. Earnings per Share, page 110

   1.                                                   We note your response
to comment 2 and the revised pro forma note (3) on page 112.
                                                        Considering that the
pro forma presentation is premised on the occurrence of the IPO as of
                                                        the beginning of the
period, and thus, the satisfaction of the RSU performance condition
                                                        (transaction vesting
condition), please make clear why the combined pro forma statements
                                                        of operations do not
reflect the recognition of incremental compensation expense related
                                                        to RSUs that have met
the time-based vesting conditions through the end of the periods
                                                        presented. Nor does the
pro forma balance sheet reflect a charge against retained earnings
                                                        for compensation cost
arising from the requisite service and performance condition
 Patrick C. Eilers
Power & Digital Infrastructure Acquisition Corp.
November 9, 2021
Page 2
      satisfied through June 30, 2021. Refer to the pertinent guidance under
ASC 718.
2.    Further explain why the contingently issuable shares underlying the RSUs
have not been
      deemed outstanding (by analogy to ASU 260-10-45-13) for the purpose of
calculating pro
      forma basic loss per share.
       You may contact Kathryn Jacobson, Senior Staff Accountant, at (202)
551-3365 or
Robert Littlepage, Accounting Branch Chief, at (202) 551-3361 if you have
questions regarding
comments on the financial statements and related matters. Please contact Edwin
Kim, Staff
Attorney, at (202) 551-3297 or Kathleen Krebs, Special Counsel, at (202)
551-3350 with any
other questions.



                                                          Sincerely,
FirstName LastNamePatrick C. Eilers
                                                       Division of Corporation
Finance
Comapany NamePower & Digital Infrastructure Acquisition Corp.
                                                       Office of Technology
November 9, 2021 Page 2
cc:       Debbie Yee, Esq.
FirstName LastName
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