California Solar Initiative Thermal - Business
Going solar can be rewarding. Installing an eligible solar water heating system at your business can help you save on your electric bill and reduce your carbon footprint. First, install a qualifying system; then, take advantage of California Solar Initiative Thermal rebates and bask in the savings.
Warming up to solar water heating at your business or multifamily complex? The California Solar Initiative Thermal Program offers you rebates and tax credits for installing an eligible solar water heating system, which captures the warmth of the sun, transfers that heat to water, and works with your conventional water heater to help it use less energy. If you’re thinking of making your business more green, CSI Thermal program rebates can help offset the cost of heating water at your business or multifamily complex.
Rebates are available to businesses through the statewide California Solar Initiative Thermal program to help lower costs for the installation of electric and propane-displacing solar water heating systems, which can save you energy and money over the long term.
The rebate amount is calculated based on how much energy the solar water heating system displaces, with commercial rebates capped at $250,000 per site for electric and propane-displacing systems. Rebate amounts will decline over time, so rebates are at their highest point now.
To be eligible for California Solar Initiative Thermal rebates, solar water heating systems must fulfill program requirements.
- Must be new
- Must have a warranty of 10 years or more
- Residential solar water heating systems must have Solar Rating and Certification Corporation (SRCC) OG-300 SWH System Certification.
- Solar collectors used in multifamily residential, commercial or industrial water heating must have SRCC OG-100 SWH System Certification
Systems must be installed according to manufacturers specifications and all applicable codes and standards.
Learn more about requirements in our CSI Handbook
To participate in the program, contractors and self-installers must attend a one-day mandatory training. Installation contractors must be in good standing with the Contractors State License Board (CSLB) and have an active A, B, C-4, C-36 or C-46 license. View upcoming classes.
All systems must be installed according to manufacturers’ specifications and meet all applicable laws, codes, regulations, permits and installation requirements.
To participate in the program, contractors and self-installers must attend a one-day mandatory training. Sign up for training now
If the contractor (specifically the contractor license holder) or self-installer already completed the mandatory training, you can register and submit applications by going to the statewide application database located at www.csithermal.com.