California Solar Initiative (CSI) Thermal Program

California Public Utilities Commission

Available Solar & Renewable

About This Program

Incentives for solar water heating systems in SDG&E territory. Rebate amounts based on system type and energy displacement. Higher incentives available for low-income households.

Rebate based on solar thermal system size and type

Key Details

  • Up to $3,750 for solar water heating
  • Available in SDG&E service territory
  • Higher rebates for low-income households
  • Must use CSI-approved contractor
  • Pre-application required

How to Apply

Deadline: Program continues while funds available

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

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