United States securities and exchange commission logo May 24, 2023 Manavendra Sial Senior Vice President and Chief Financial Officer Fluence Energy, Inc. 4601 Fairfax Drive , Suite 600 Arlington , Virginia Re: Fluence Energy, Inc. Form 10-K for the Fiscal Year Ended September 30, 2022 File No. 1-40978 Dear Manavendra Sial: 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 Manufacturing