December 17, 2019 Lon E. Bell President and Chief Executive Officer Ideal Power Inc. 4120 Freidrich Lane, Suite 100 Austin, Texas 78744 Re: Ideal Power Inc. Registration Statement on Form S-3 Filed December 13, 2019 File No. 333-235500 Dear Mr. Bell: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. 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. Please contact Thomas Jones at 202-551-3602 with any questions. Sincerely, Division of Corporation Finance Office of Manufacturing cc: Ned A. Prusse