California Solar Initiative

The California Solar Initiative (CSI) is the solar rebate program in California for customers of the investor-owned utilities: Pacific Gas and Electric, Southern California Edison and San Diego Gas & Electric. Through CSI, the California Public Utilities Commission is providing $2.1 billion to businesses, nonprofit organizations, public agencies and homeowners to help lower their energy costs, reduce their reliance on fossil fuels and create a sustainable energy future through the use of solar technologies.

The CSI Program is directly administered by each investor-owned utility, with the exception of SDG&E, whose CSI program is administered by CSE.

The CSI Program Handbook describes the detailed requirements for receiving incentives for the installation of solar energy systems under the CPUC-managed incentive programs: solar photovoltaic (PV), solar thermal (solar water heating), multifamily affordable solar housing (MASH), single-family affordable solar housing (SASH) and other solar applications.



San Diego (Headquarters)

9325 Sky Park Court, Suite 100
San Diego, CA 92123

Los Angeles

617 West 7th Street, Suite 305
Los Angeles, CA 90017


426 17th Street, Suite 700
Oakland, CA 94612



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