NOTE: The SASH program is currently closed to new applications.  For more info contact the Program Administrator, GRID Alternatives, with any questions.

The California Solar Initiative’s Single-family Affordable Solar Homes (SASH) Program has issued the January 2022 edition of the SASH Semi-Annual Progress Report, which provides detailed information on the program's progress in each of the three service territories in California. The program is managed by GRID Alternatives, an Oakland-based non-profit organization.

Recent highlights and milestones of the program include:

  • Over 9,600 PV systems have been installed and interconnected.
    • 5,261 SASH 1.0 and 4,421 SASH 2.0
  • In total these projects have encumbered approximately $137.9 million in incentives and represent over 30 MW of solar capacity.
  • The SASH program has referred over 10,922 low-income homeowners to the utilities' Energy Savings Assistance (ESA) programs.

Program Administrator

The SASH Program is managed by GRID Alternatives. Please contact Grid Alternatives with eligibility questions, program applications, solar and energy efficiency questions and in identifying loans, grants and other financing options. Please contact GRID Alternatives toll-free at (866)921-4696, or by email at or visit their website at

About SASH

The California Solar Initiative (CSI) has a Single-family Affordable Solar Homes (SASH) Program that provides solar incentives on qualifying affordable single-family housing. The goals of the SASH program are to:

  • Decrease electricity usage by solar installation and reduce energy bills without increasing monthly expenses
  • Provide full and partial incentives for solar systems for low-income participants
  • Offer the power of solar and energy efficiency to homeowners
  • Decrease the expense of solar ownership with a higher incentive than the General CSI Program
  • Develop energy solutions that are environmentally and economically sustainable
  • Provide job training and employment opportunities in the solar energy and energy efficiency sectors of the economy.

The SASH program provides qualified low-income homeowners fixed, up front, capacity-based incentives to help offset the upfront cost of a solar electric system.

Eligible applicants must:

  • Receive electrical service from Pacific Gas & Electric (PG&E), Southern California Edison (SCE), or San Diego Gas & Electric (SDG&E),
  • Own and live in their home,
  • Have a household income that is 80% or below the area median income (AMI),
  • Live in a home defined as “affordable housing” by California Public Utilities Code 2852.

The SASH program offers one incentive level of $3 per watt

For additional information on the CSI SASH Program, please consult the SASH Program Handbook.

For more information on the launch of the CSI Single-family Affordable Solar Homes Program, please read the CPUC regulatory decision that originally authorized the program and the January 2015 decision that reauthorized the program. You may also contact the CPUC's Distributed Generation team with regulatory questions.

AB 217 Implementation

Assembly Bill 217 (Bradford, 2013) extended the SASH and MASH programs of the California Solar Initiative with $108 million in new funding, and set several new goals for the programs. To read the Energy Division’s July 2014 staff proposal regarding the implementation of AB 217 at the Commission, please visit this link. For this and all other documents released in the Commission’s R.12-11-005 rulemaking, please visit the R.12-11-005 Docket Card page.

On January 29, 2015, the CPUC approved a decision to revise SASH’s enrollment eligibility requirements, capacity target, job training requirements, incentive levels, and allow third-party project ownership.

On April 29, 2015 the CPUC approved the SASH Handbook, outlining information and guidelines for the reauthorized SASH program.

SASH Program Evaluations

There have been two program evaluation cycles to date in the SASH program, and a final program evaluation system is expected to commence at the end of the program in 2021.  The Energy Division hired Navigant Consulting, Inc. to perform the two in depth evaluations of CSI SASH and MASH program design, delivery operations, administration, and impact, for the time periods 2009-2010; and 2014-2015.  The links below include Navigant's final reports for the Program Administrator assessments, Market Assessments, and Impact and Cost Benefit Analyses for the program years evaluated.

On January 28, 2016, Navigant Consulting, Inc issued the California Solar Initiative SASH and MASH Market and Program Administrator Assessment, Programs Years 2011-2013

On January 28, 2016, Navigant Consulting, Inc issued the California Solar Initiative SASH and MASH Impact and Cost-Benefit Analysis, Program Years 2011-2013  

On August 4, 2011, Navigant Consulting, Inc issued the California Solar Initiative SASH and MASH Low-Income Evaluations

On August 4, 2011, Navigant Consulting, Inc issued the CSI SASH and MASH Impact and Cost Benefit Report.

On June 10, 2011, Navigant Consulting, Inc issued the CSI SASH Biennial Report.

On April 5, 2011, Navigant Consulting, Inc issued the CSI SASH and MASH Program Administrator Performance Assessment Report (March 2011), which provides an evaluation of the SASH program.

On April 1, 2011, Navigant Consulting, Inc issued the CSI SASH and MASH Market Assessment Report, which provides an evaluation of the SASH program.