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This Solar Estimator will estimate the size and calculate the cost to install a solar energy system for your home or building. Technology options include solar electric (PV), solar water heating, pool or spa heating, space heating & cooling. The financial analysis provided is based upon energy bill savings you can expect and the net system cost, after tax credits and other incentives are applied. The results are based upon many assumptions and the limited data you will enter. An actual site assessment by a qualified Solar. Professional will be needed to determine the actual costs and benefits of installing a solar energy system.

Note: Our Solar Estimators (solar calculators) only cover the United States and its Territories. They do not yet cover solar energy calculations for Canada and its Provinces or make a solar energy estimate for other Non-U.S. areas.