Plug-In Solar in Wyoming
Wyoming doesn't have a plug-in solar law. In 2026, a bill covering 1,200 W kits died in House committee, so the rules for utility net metering and interconnection are still in effect.
- No plug-in solar law in Wyoming yetBill HB 146
- Utility rules are in effect.There's no watt cap for plug-in solar.
- 14.0 centsPer kWh, the EIA average home price from Jan to Aug 2026.
- $177 each year.In Cheyenne, an 800 W kit, excluding any utility solar fee.
You need your electric utility's approval before connecting in Wyoming, plus an inverter listed to UL 1741 (anti-islanding included) or to UL 3700.
Wyoming Plug-In Bills
- HB 146 (2026), called the Affordable electricity act of 2026, would have allowed per meter up to 1,200 W with UL or NRTL certification and no utility approval or fee; no motion was made, so it died in House committee (last action 3 Mar 2026). Bill page
Wyoming's Rule Today
Hooking up: Wyoming's statute on net metering (W.S. 37-16-101 et seq.) covers systems up to 25 kW with basic interconnection terms. The PSC doesn't have interconnection rules of its own, and you'll need an external disconnect switch.
By statute, net metering exists for systems up to 25 kW. With Rocky Mountain Power, excess energy turns into a kWh credit on the next bill, while each year leftover credits get bought at avoided cost.
Wyoming Kit Savings
Each 1 kW of panels in Cheyenne puts out 1,577 kWh a year, according to PVWatts, and homes in Wyoming pay 14.0 cents per kWh in 2026 so far. With an 800 W kit, results depend on where the panels go:
| Where the panels go | kWh a year | Saved a year |
|---|---|---|
| Tilted south on a stand | 1,262 | $177 |
| Upright on a railing | 795 | $111 |
| Facing east or west | 1,009 | $141 |
Cheyenne, Month by Month
- Jan89
- Feb89
- Mar113
- Apr112
- May111
- Jun123
- Jul121
- Aug120
- Sep113
- Oct101
- Nov87
- Dec82
An 800 W kit makes this many kWh, tilted south.
Wyoming Kit Prices
| Kit | kWh a year | Saved a year | Pays back in | Price |
|---|---|---|---|---|
| US Solar Supplier 1180 W EZ1 Kit | 1,861 | $261 | 3.4 years | $899 |
| Bright Saver 360 W Balcony Kit | 568 | $80 | 5.2 years | $414 |
| EcoFlow STREAM 800 W Kit | 1,262 | $177 | 6.2 years | $1,099 |
Tilted south, all used at home. Compare all kits
Wyoming: What to Know
- Power costs relatively little here, with the average residential price at 12.47 cents/kWh in 2024. A plug-in kit therefore saves less for every kWh than in high-cost states.
- On safety grounds, Black Hills Energy and Rocky Mountain Power, the largest utility, opposed the 2026 bill before it died in committee.
Renting, or Using a Balcony?
The mount is up to your landlord or HOA; the hookup is up to your electric utility. See balcony solar and apartment solar.
Main Utility Companies
- Rocky Mountain Power (PacifiCorp)
- Cheyenne Light Fuel & Power (Black Hills Energy)
- Powder River Energy Corporation
Wyoming: Your Next Steps
- Pick a size: in Cheyenne, roughly 631 kWh a year comes from a 400 W kit, while a kit of 1,200 W gives roughly 1,892 kWh. Run your own numbers
- Follow HB 146 during the next legislative session. Should it pass, you may not need that approval step.
Sources
- Legislation - 2026 - HB0146, Wyoming Legislature
- Plug-in solar bill: lawmakers pull the cord | News From The States (WyoFile)
- Title 37 Public Utilities, Wyoming Statutes
- DSIRE Wyoming Interconnection Guidelines
- Rocky Mountain Power Wyoming Schedule 135 Net Metering Service
- EIA State Electricity Profile tables, Wyoming 2024
- Sources: NREL PVWatts, Cheyenne plus EIA Table 5.6.B, 2026 prices
Look over every state at a glance or check a neighbor: Colorado, Utah, Montana.