Quick Solar Water Heating Estimate

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. We recommend contacting solar installers to get detailed proposals for a solar water system tailored to meet your needs. More information about solar water heating systems is available on the SFEnvironment website.
SWH System Information
Property Type: help
Number of Occupants for System Sizing:
Expected Utility Rate Inflation: help
System Price:
(Leave blank to use default price)
help $
Natural Gas Rate ($/therm):
(Leave blank to use default price)
help $
SWH Finanical Information
Loan Amount: help
Loan Life: help
Loan Rate: help

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Please input the system size in gallons per day.