About the CSI-Thermal Program

The California Solar Initiative (CSI)-Thermal Program is a ratepayer-funded rebate program for customers of the four California investor-owned utilities (Pacific Gas and Electric, Southern California Edison, Southern California Gas and San Diego Gas & Electric). CSE is the program administrator for the SDG&E territory.

The CSI-Thermal Program will run through December 31, 2019, or until rebate money runs out. For comprehensive program details and requirements, please see the California Solar Initiative (CSI) -Thermal Program Handbook. Following are some of the basics.

  • Customer Eligibility
  • Solar Thermal System Requirements
  • Rebate Amounts
  • Rebate Structure
  • Application Process
  • Tax Credits Available