Solar Water Heating

An efficient and under-appreciated use of solar energy
Using the sun's energy to heat your domestic hot water is clean and economical. Solar water heating is an efficient use of solar energy that has been largely overlooked. Cut your utility bill and decrease carbon emissions by harnessing the solar potential on your roof to meet your home or business water heating needs.
SF Solar Water Heating Calculator
This calculator is part of the innovative, award-winning SF Solar Map. It allows San Francisco residents and businesses to evaluate their building's solar resource potential. Find your home or building on the map to see your solar electric or water heating potential.
California's CSI-Thermal Incentive
To accelerate the adoption of solar water heating systems in California, the state is offering incentives to install solar thermal systems on their properties.



Get info about incentives, rebates, services, and take action today!

Directories, Case Studies, Downloads

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Many San Franciscans are already successfully using the sun to provide for much of their domestic hot water needs.  Read some of their stories to learn what it means to go solar in San Francisco.


Additional Information for Solar Water Heating

SF Solar Water Heating Calculator
This calculator only provides a basic estimate to help San Francisco property owners get a first look at how solar water heating can benefit them.
GreenFinanceSF allows commercial property owners to finance renewable energy projects, as well as energy and water efficiency, through a municipal bond and repay the debt via their property tax account.