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 CCSE.

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, #100 ∙ San Diego, CA 92123

Los Angeles

411 S. Hewitt Street ∙ Los Angeles, CA 90013


55 Harrison Street, #300 ∙ Oakland, CA 94607



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