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First, if you need heating for a pool, water heater or space heating, use a Direct Thermal System (Thermal systems are much more efficient for heating than a PV system):
solar pool heating
solar water heating
solar space heating
Next, large loads such as air conditioning are very expensive to offset with PV. Most typical homeowners use PV to offset a portion of their total electric bill. If you have a limited budget, consider our Starter Kit to begin reducing your utility bill.
It is important to consider ways you can conserve electric in order to reduce the size and investment in a PV system. Using simple conservation practices and other technologies to reduce usage.
Use the estimator below as a general guide for size, cost and savings. Calculations and examples are very conservative, most people can expect to save more.
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