United States securities and exchange commission logo April 18, 2022 Jeanna Steele General Counsel and Corporate Secretary Sunrun Inc. 225 Bush Street Suite 1400 San Fransisco, CA 94104 Re: Sunrun Inc. Form 10-K for the Year Ended December 31, 2021 Filed February 17, 2022 Form 8-K Furnished February 17, 2022 File No. 001-37511 Dear Ms. Steele: We have reviewed your April 12, 2022 response to our comment letter 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 these comments within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe our comments apply to your facts and circumstances, please tell us why in your response. After reviewing your response to these comments, we may have additional comments. Unless we note otherwise, our references to prior comments are to comments in our March 29, 2022 letter. Form 10-K for the Year Ended December 31, 2021 Form 8-K furnished February 17, 2022 Exhibit 99.1 Earnings Release, page 10 1. We note your response to previous comment 1. Please explain to us and expand future disclosure in order for investors to better understand the reasons why you offset margin on other products sold to derive your Creation Cost metric. Jeanna Steele Sunrun Inc. April 18, 2022 Page 2 You may contact Effie Simpson at (202) 551-3346 or Claire Erlanger, at (202) 551-3301 if you have questions regarding comments on the financial statements and related matters or any other questions. Sincerely, FirstName LastNameJeanna Steele Division of Corporation Finance Comapany NameSunrun Inc. Office of Manufacturing April 18, 2022 Page 2 cc: Ian Nussbaum FirstName LastName