Solar calculator for Wyoming
Panels, system size, cost and payback for Wyoming, from your own power bill.
The average Wyoming home uses 863 kWh a month and pays 12.5 cents per kWh, which puts Wyoming at some of the cheapest electricity in the country, which stretches payback. Winter heating shapes the bill in Wyoming, and winter is when panels make the least, so a bill that looks big in January does not map cleanly to a bigger array. A south-facing fixed array there makes about 1,533 kWh per installed kW a year, and the worst winter month still gets 3.33 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 Wyoming
Take the average home: 863 kWh a month, which is 10,356 kWh a year, at 12.5 cents per kWh (EIA, 2024 residential averages, as of 2026-11). Sized to cover all of that use, the tool returns 6.8 kWdc and 17 panels, needing about 357 square feet of roof. The installed estimate is $16,821 (national median, EnergySage H2 2025), yearly savings are about $1,295, and simple payback is 13.0 years, with no incentive applied.
Sun and yield in Wyoming
We use 1,533 kWh per installed kW per year for Wyoming, 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 3.33 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.
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 Wyoming 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 Wyoming home need?
The average Wyoming home uses 10,356 kWh a year (EIA 2024). At about 1,533 kWh per installed kW, covering all of it takes 6.8 kWdc, or 17 panels. Your own bill will move that up or down.
How much does solar cost in Wyoming?
For the average-home example the installed estimate is $16,821 at the national median of $2.49 per watt (EnergySage, H2 2025, as of 2026-11). We have no sourced Wyoming price multiplier, so local quotes will differ.
Is there a federal solar tax credit in Wyoming?
The 30% federal tax credit ended for homeowner purchases after December 31, 2025. Check your state, utility and local programs separately.
Where does the Wyoming sun figure come from?
1,533 kWh per kW per year and 3.33 winter peak sun hours come from NREL PVWatts v8 runs for Wyoming'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.