Solar Panel Cost in Wyoming (2026 Estimate)

BySunMetricLab Editorial Team·Independent solar research and calculators

Data last updated September 10, 2026 · ranks #33 of 50 states for modeled payback

Wyoming averages about 5.3 peak sun hours a day (about average for the US) with an approximate residential electricity rate near 12¢/kWh, on the lower end nationally. In the model used here, an 8 kW system in Wyoming produces roughly 12,380 kWh a year and trims about $1,500 off annual electricity costs, paying back its net cost in about 11.3 years. That is a middle-of-the-pack payback, so whether solar is worth it in Wyoming often comes down to your specific rate, roof, and any state or utility incentives.

Estimated system cost and payback in Wyoming

Costs assume roughly $3.00/watt installed for Wyoming; the net column applies a 30% federal credit for comparison with quotes that include it. Savings and payback use the state's sun hours and rate above.

The 30% federal Residential Clean Energy Credit ended for systems paid for after December 31, 2025 under the 2025 federal budget law. Net-after-credit figures apply only if you still qualify (for example a 2025 expenditure, or a leased system where the installer passes a credit through). Confirm with a tax professional.

What moves the numbers in Wyoming

Two inputs drive most of the difference between states: how much sun a system sees and what each offset kilowatt-hour is worth. Wyoming's 5.3 sun hours set production, and its roughly 12¢/kWh rate sets what that production saves. The bigger unknowns are your roof, shading, and how your utility compensates exported power, since a lower export rate can pull real savings below the retail-rate figure above.

Net metering and export credits in Wyoming

Wyoming law requires utilities to offer net metering for customer systems up to 25 kilowatts, crediting exports against consumption at the retail rate within each billing month. Any net excess that accumulates carries forward through the calendar year, and at year end the utility pays you for whatever remains at its avoided-cost rate, which is a small fraction of retail and effectively resets the account.

Several legislative attempts between 2019 and 2021 to replace this framework with avoided-cost crediting or new fees failed, and the statute has stayed intact, though the debate could resurface in any session. Rocky Mountain Power, Black Hills Energy, and Montana-Dakota Utilities all file net metering tariffs with the Public Service Commission, while cooperatives and municipal utilities implement the statute through their own policies and interconnection requirements. Some cooperatives add facilities charges for solar customers, so read the tariff before you sign.

Wyoming solar incentives beyond the federal credit

Wyoming has no personal income tax and offers no state solar credit, rebate, or property tax exemption for home systems, and the four percent state sales tax plus local additions applies in full to solar equipment and installation. State policy has focused on coal, gas, and wind at utility scale rather than on rooftop programs.

What remains is the 30 percent federal credit, occasional cooperative rebates or on-bill financing for efficiency and electrification, and the USDA REAP grant for agricultural producers and rural small businesses, which can pay a meaningful share of a barn or shop system. The Wyoming Energy Authority does not run residential incentives. Given the limited support, low equipment prices and strong sun matter more than programs when weighing a system here.

Utilities and rate plans in Wyoming

Rocky Mountain Power is the largest provider, serving Casper, Laramie, Rock Springs, and much of the south and center, Black Hills Energy covers Cheyenne, and Montana-Dakota Utilities serves Sheridan and the northeast. Cooperatives such as High Plains Power, High West Energy, Powder River Energy, Carbon Power and Light, and Lower Valley Energy in the Jackson area serve most rural customers, and municipal utilities in Cody, Powell, and Torrington buy through the Wyoming Municipal Power Agency. Residential rates are among the lowest in the nation and Lower Valley's hydro-based pricing is lower still, which lengthens payback despite excellent sun and high elevation. Because the year-end surplus is bought at avoided cost, matching system size to annual usage is the surest way to capture value.