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Sizing Solar Water Heater Tool (Florida, USA)

Residential solar hot water systems

This calculator provides consumer information on the energy, cost and environmental savings potential of residential solar hot water systems in Florida. The calculations and assumptions were modeled on the solar system calculator tool (SHW-calculator_simple.xls, 204k) available for Microsoft Excel and developed by FSEC's Deputy Director, Philip Fairey. To use this calculator, answer the two questions under the heading "Basics Solar System Information" using the pull-down menus provided. For the input "Florida Climate Zone," if your home is north of Volusia County, select "North" and if your home is south of St. Lucie County, select "South." Otherwise, select "Central." The calculator depends on a number of pre-selected assumptions. To view and change these assumptions, select the checkbox below and the additional input fields will appear. If you choose to not change these assumptions, simple uncheck the box below anytime.