CSI Multifamily Affordable Solar Housing (MASH) Program

NOTE: The MASH program is currently closed to new applications.  The extended funding for the MASH Program authorized by AB 217 is expected to be exhausted by the projects currently on the waitlist in all three Program Administrator territories.  Please see the section below titled Program Waitlist for more information and please contact the Program Administrator in your service territory with any questions.  Program Administrator contact information can be found below.

The California Solar Initiative's Multifamily Affordable Solar Housing (MASH) Program has issued the 2017 January MASH Semi-Annual Progress Report, which provides detailed information on the MASH Program's progress in each of the three service territories in California. Recent highlights and milestones of the program include:

  • 29.3 MW of solar capacity is now interconnected across 396 projects statewide that serve multifamily affordable housing.
  • 173 MASH projects are currently reserved, with a capacity of over 23 MW.
  • More than $85 million in incentives have been paid to completed projects; an additional $33.8 million is reserved for pending projects.
  • There are now over 8,300 tenant units participating in Virtual Net Metering as a result of the MASH program. 

About the MASH Program

Established in 2008, the MASH Program provides solar incentives on qualifying affordable housing multifamily dwellings.  The goals of the MASH program are to:

  • Stimulate the adoption of solar power in the affordable housing sector;
  • Improve energy utilization and overall quality of affordable housing through the application of solar and energy efficiency technologies;
  • Decrease electricity use and costs without increasing monthly household expenses for affordable housing building occupants; and
  •  Increase awareness and appreciation of the benefits of solar among affordable housing occupants and developers.
  •  Maximize the overall benefit to ratepayers.
  •  Require participants who receive monetary incentives to enroll in the Energy Savings Assistance (ESA) program, if eligible.
  •  Provide job training and employment opportunities in the solar energy and energy efficiency sectors of the economy.
  • The MASH program provides fixed, up front, capacity-based incentives for qualifying solar energy systems. The amount of the incentive depends on which Track (1C or 1D) the applicant is eligible for.
MASH Incentive Rates

MASH Incentive Rates ($/Watt) 

Track 1C – PV System Offsetting one of the following:

  •  Common Area Load
  • Non-VNM Tenant Load
  • or VNM Tenant Load with <50% Tenant Benefit                                                          
 

      $1.10   

Track 1D – PV System Offsetting:

  • VNM Tenant Load with ≥50% Tenant Benefit
 

$1.80

 

For more information on the CSI MASH Program, please consult the MASH Program Handbook.

For information on the launch of the CSI MASH Program, please read the CPUC regulatory decision that 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.

Program Administrators

The MASH program is managed by the Program Administrators of the General Market CSI Program: Pacific Gas & Electric Company, Southern California Edison, and The Center for Sustainable Energy in San Diego Gas & Electric territory.  Please contact the Program Managers with eligibility questions, program applications, solar and energy efficiency questions and in identifying loans, grants and other financing options.  The MASH Program Administrators can be contacted at:

  • Pacific Gas & Electric - Solar Customer Service Center 1-877-743-4112, Solar Hotline 415-973-3480
  • Southern California Edison - Contact 866-584-7436
  • In San Diego Gas & Electric territory - Contact the California Center for Sustainable Energy at 858-244-1177 or MASH@energycenter.org  

Program Waitlist

The Program Administrators will begin reviewing applications currently on the program waitlist on August 3, 2015.  Projects on the waitlist will have 30 days from the date requested by the Program Administrator to provide documentation of meeting the new program requirements.  If the documentation provided is insufficient or incomplete, applicants will be given an additional 10 days from the date they are notified by the Program Administrator to submit the required documentation before being removed from the queue. Should you have any questions, please feel free to contact the Program Administrator in your service territory. Program Administrator contact information can be found below.

AB 217 Implementation

Assembly Bill 217 (Bradford, 2013) extended the MASH and SASH 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 MASH’s enrollment eligibility requirements, capacity target, job training requirements, incentive levels, and program budget. 

On April 30, 2015, PG&E hosted a workshop on the new energy efficiency requirements under the reauthorized MASH Program. To access the slides from the workshop please visit this link.

On July 31, 2015 the CPUC approved the MASH Handbook, outlining information and guidelines for the reauthorized MASH Program.

Reports

In January 2016, Navigant Consulting, Inc. completed its evaluation of CSI SASH and MASH program design, delivery, operations and impact for program years 2011-2013 and released two reports:  a program administrator and market assessment, and an impact and cost-benefit analysis.  These program evaluations build upon the previous SASH and MASH studies completed in 2011, and also available upon the previous SASH and MASH studies completed in 2011, and also available through links below.  On January 28, 2016, the 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 Market and Program Administrator Assessment, Programs Years 2011-2013.

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 MASH Biennial Report

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

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