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                     July 7, 2022

       Eli Spiro
       Chairman and Chief Executive Officer
       CleanTech Acquisition Corp.
       207 West 25th Street, 9th Floor
       New York, NY 10001

                                                        Re: CleanTech
Acquisition Corp.
                                                            Preliminary Proxy
Statement on Schedule 14A
                                                            Filed June 17, 2022
                                                            File No. 001-40611

       Dear Mr. Spiro:

              We have completed our review of your filing. We remind you that
the company and its
       management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.




                     Sincerely,


                     Division of Corporation Finance

                     Office of Technology
       cc:                                              Giovanni Caruso, Esq.