POWER OF ATTORNEY

     The undersigned, as a Section 16 reporting person of Sunrun Inc. (the "Company"),
hereby constitutes and appoints Mina Kim, Bob Komin, Sanam Pangali and Jay Maloney, the
undersigned's true and lawful attorneys-in-fact to:

     1.  Complete and execute Forms 3, 4 and 5 and other forms and all amendments
thereto as such attorneys-in-fact shall in their discretion determine to be required
or advisable pursuant to Section 16 of the Securities Exchange Act of 1934 (as
amended) and the rules and regulations promulgated thereunder, or any successor
laws and regulations, as a consequence of the undersigned's ownership,
acquisition or disposition of securities of the Company; and

     2.  Do all acts necessary in order to file such forms with the Securities and Exchange
Commission, any securities exchange or national association, the Company and
such other person or agency as the attorneys-in-fact shall deem appropriate.

     The undersigned hereby ratifies and confirms all that said attorneys-in-fact and agent
shall do or cause to be done by virtue hereof.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934 (as amended).

     This Power of Attorney shall remain in full force and effect until the undersigned is no
longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and
transactions in securities issued by the Company, unless earlier revoked by the undersigned in a
signed writing delivered to the Company and the foregoing attorneys-in-fact.

     IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 12th day of January, 2018.

     Signature: /s/ Alan Ferber
     Print Name: Alan Ferber