CSI-Thermal Recent Program News

The CSI-Thermal program provides rebates to utility customers who install solar thermal systems to replace water-heating systems powered by natural gas.

  • On June 22, 2018, Energy Division issued the CSI Thermal Program Impact Evaluation Report
  •  On March 17, 2016, the CPUC approved PG&E Advice 3691-G/4800-E/CSE Advice 69/ SCG Advice 4930 to shift $25 million from all sectors of the CSI-Thermal general market budget to the CSI-Thermal low-income budget, increasing the total low-income budget to $50 million.
  •  On October 1, 2015, the Commission approved Decision 15-10-004, modifying the CSI Thermal program to expand the eligibility requirements for single-family low income customers.
  • On January 29, 2015, the CPUC approved Decision 15-01-035, which increased incentive rates for the gas-displacing program, revised sub-program budgets, and established project incentive caps for multifamily /commercial and solar pool heating projects.
  • On January 29, 2014, the CPUC issued a report to the Legislature, the Review of the Incentive Levels of the CSI-Thermal Program, pursuant to AB 2249 (Buchanan, 2012).   
  • In July 2009 Energy Division issued a Staff Report on a Solar Water Heating program and invited comments.


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