Solar Panels in Wyoming (WY)
Last updated: February 24, 2026
Everything you need to know about going solar in Wyoming (WY) — costs, savings, incentives, and the best equipment for your climate.
Federal Residential Solar Tax Credit Repealed
The 30% residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal can still claim the credit. Commercial projects retain the 30% ITC under Section 48/48E. Solar can still pay for itself through electricity savings alone.
Sun Hours/Day
5.1 hrs
Excellent Solar Irradiance
8 kW System Cost
$24,000
$3.00/watt installed
Federal Residential ITC
Repealed
Section 25D (early 2026)
Annual Savings
$1,936
14,892 kWh/year
Payback Period
12.4 yrs
then free electricity for 15-20+ yrs
Solar Irradiance in Wyoming (2026)
Wyoming receives an average of 5.1 peak sun hours per day annually, equivalent to roughly 1861 kWh/m² per year of global horizontal irradiance (GHI). Summer peaks reach about 6.6 h/day, while winter lows drop to around 3.1 h/day.
This places Wyoming in the excellent solar irradiance band compared with other US states. At 5.1 kWh/m²/day, each 1 kW of rooftop solar in Wyoming generates approximately 1,452 kWh/year (assuming 78% system performance after inverter, soiling, and temperature losses), which makes an 8 kW system produce around 14,892 kWh per year.
Data source: NREL National Solar Radiation Database (NSRDB), 1998-2020 typical meteorological year averages. Wyoming (WY) values reflect the statewide average; coastal, mountain, and desert microclimates can vary by ±15% from this figure.
Wyoming Solar Incentives (2026)
Federal residential tax credit was repealed in early 2026. Wyoming continues to offer the following state and utility-level programs:
| Incentive | Value | Eligibility | Deadline | Source |
|---|---|---|---|---|
| Federal Section 25D ITC | 0% (Repealed Q1 2026) | N/A | Was 12/31/2025 | IRS |
| Net metering 1:1 (capped 25kW) | — | — | Verify with state agency | DSIRE |
| Property tax exemption (limited) | — | — | Verify with state agency | DSIRE |
| Solar Easement law | — | — | Verify with state agency | DSIRE |
⚠ Always verify state incentive deadlines, caps, and eligibility before signing a solar contract — programs change annually and many have annual funding caps that exhaust mid-year.
Major utility companies in Wyoming
Check your utility's net metering policy, interconnection requirements, and rate structure before installing — rules vary significantly within Wyoming:
- • Rocky Mountain Power (PacifiCorp)
- • Black Hills Energy
- • Cheyenne Light Fuel & Power
Each utility has different rate structures, net metering caps, and time-of-use schedules. Visit your utility's website for current solar interconnection requirements and queue times.
Net metering in Wyoming
Status: Net metering 1:1 (capped at 25 kW)
Export rate: Full retail rate credit
System size cap: 25 kW residential/commercial
⚠ NEM rules can be amended by state public utility commissions and individual utilities — verify with your utility before committing. Caps and rates shown reflect the most common residential tariff as of 2026.
Solar Incentives in Wyoming
Federal Residential ITC (Section 25D) -- Repealed
The 30% federal residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal may still claim the credit for that tax year. Commercial solar projects continue to receive the 30% ITC under Section 48/48E.
Top 3 Recommended Solar Panels for Wyoming
With 5.1 peak sun hours/day and high temperatures, Wyoming homeowners need panels with excellent temperature coefficients to minimize heat losses:
| Panel | Wattage | Efficiency | Temp Coeff | Warranty |
|---|---|---|---|---|
| REC Alpha Pure-RX 470W | 470W | 22.6% | -0.24%/°C | 25/25 yr |
| REC Alpha Pure R 430W | 430W | 22.3% | -0.26%/°C | 25/30 yr |
| Meyer Burger White 400W | 400W | 21.7% | -0.26%/°C | 25/30 yr |
Top 3 Recommended Batteries for Wyoming
Pairing solar with battery storage provides backup power during outages and can optimize savings with time-of-use rates:
| Battery | Capacity | Power | Chemistry | Warranty |
|---|---|---|---|---|
| HomeGrid Stack'd Series 38.4kWh | 38.4 kWh | 34.4 kW | LFP (Lithium Iron Phosphate) | 10 yr |
| HomeGrid Stack'd Series 28.8kWh | 28.8 kWh | 25.8 kW | LFP (Lithium Iron Phosphate) | 10 yr |
| BYD Battery-Box Premium HVM 22.1 | 22.08 kWh | 22.08 kW | LFP (Lithium Iron Phosphate) | 10 yr |
Frequently Asked Questions
How much do solar panels cost in Wyoming in 2026?
The average cost of an 8 kW solar system in Wyoming is approximately $24,000 ($3.00/watt installed). Note: The federal residential solar tax credit (Section 25D) was repealed in early 2026, so the full system cost applies unless state incentives are available. Get 3-5 quotes from local installers for accurate pricing.
Is the federal solar tax credit available in Wyoming?
The federal residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal can still claim the credit for that tax year. Commercial solar projects continue to receive the 30% ITC under Section 48/48E. While Wyoming does not have state-level solar tax credits, property tax exemptions and net metering may still provide savings. Consult a tax professional for the latest guidance.
How does Wyoming's climate affect solar panel efficiency?
Wyoming receives 5.1 peak sun hours/day, which is excellent for solar production. However, high temperatures can reduce panel efficiency. Choose panels with strong temperature coefficients (closer to 0%/°C) to minimize heat-related losses. An 8 kW system in Wyoming can produce approximately 1,936 in annual savings.
How much can I save with solar in Wyoming?
An 8 kW solar system in Wyoming produces approximately 14,892 kWh/year, saving about $1,936 annually. The estimated payback period is 12.4 years. Over 25 years, total savings can reach $48,400.
Does Wyoming have net metering?
Net metering policies vary by utility in Wyoming. Most states offer some form of net metering or net billing that credits solar homeowners for excess electricity sent back to the grid. Contact your local utility or check the DSIRE database for current Wyoming net metering policies.
What is the best solar panel for Wyoming?
For Wyoming's high-sun climate (5.1 hours/day), panels with excellent temperature coefficients perform best since they lose less power in heat. Look for HJT or high-quality TOPCon panels with temp coefficients closer to 0%/°C.
What is the payback period for solar in Wyoming?
The estimated payback period for an 8 kW solar system in Wyoming is 12.4 years. This is calculated as: system cost ($24,000) divided by annual savings ($1,936/year). After payback, solar generates essentially free electricity for 15-20+ more years.
Do I need a battery for solar in Wyoming?
A battery is not required for grid-tied solar in Wyoming, but it provides backup power during outages and can increase savings with time-of-use rate optimization. Battery prices continue to decline, making storage increasingly cost-effective.
Does Wyoming have solar incentives?
Wyoming currently has limited state-level solar incentives, and the federal residential ITC (Section 25D) was repealed in early 2026. Solar can still pay for itself through electricity savings alone in 12.4 years.
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