Solar calculator for Florida
Panels, system size, cost and payback for Florida, from your own power bill.
The average Florida home uses 1,104 kWh a month and pays 14.1 cents per kWh, which puts Florida at mid-range electricity prices, so payback depends mostly on how much sun your roof gets. Summer cooling drives the bill in Florida, and that load lands in the sunniest hours, which suits solar. A south-facing fixed array there makes about 1,455 kWh per installed kW a year, and the worst winter month still gets 3.9 peak sun hours a day. Drop in your own bill below and the numbers on this page are replaced by yours.
A worked example for Florida
Take the average home: 1,104 kWh a month, which is 13,248 kWh a year, at 14.1 cents per kWh (EIA, 2024 residential averages, as of 2026-11). Sized to cover all of that use, the tool returns 9.1 kWdc and 23 panels, needing about 483 square feet of roof. The installed estimate is $22,672 (national median, EnergySage H2 2025), yearly savings are about $1,868, and simple payback is 12.1 years, with no incentive applied.
Sun and yield in Florida
We use 1,455 kWh per installed kW per year for Florida, from NREL PVWatts v8 for the state's largest city at a 20 degree south-facing tilt (via TheGreenWatt, as of 2026-11). The darkest month averages 3.9 peak sun hours a day, which matters if you plan to go off-grid or size a battery. A different roof angle or heavy shade changes this, so treat it as a starting point.
Florida's largest utility has its own page: see the FPL solar calculator page and the guide to reading your FPL bill.
Incentives
The 30% federal tax credit ended for homeowner purchases after December 31, 2025, so none is applied here. See the tax credit guide. Look up Florida and your own utility for net metering terms and any local programs before relying on a payback number.
Planning estimate. Permits, interconnection approval and a licensed electrician are required for grid-tied systems.
Questions
How many solar panels does a Florida home need?
The average Florida home uses 13,248 kWh a year (EIA 2024). At about 1,455 kWh per installed kW, covering all of it takes 9.1 kWdc, or 23 panels. Your own bill will move that up or down.
How much does solar cost in Florida?
For the average-home example the installed estimate is $22,672 at the national median of $2.49 per watt (EnergySage, H2 2025, as of 2026-11). We have no sourced Florida price multiplier, so local quotes will differ.
Is there a federal solar tax credit in Florida?
The 30% federal tax credit ended for homeowner purchases after December 31, 2025. Check your state, utility and local programs separately.
Where does the Florida sun figure come from?
1,455 kWh per kW per year and 3.9 winter peak sun hours come from NREL PVWatts v8 runs for Florida's largest city, compiled by TheGreenWatt (as of 2026-11). Real yield varies across the state.
Is my bill uploaded?
No. Your bill is read in your browser and never uploaded.