Plug-In Solar in Wyoming — Status: deferred
Bill: HB 146 — Affordable Electricity Act of 2026
Sponsor: Rep. Clark Stith
Legislative Status: Deferred until 2027. HB 146 was killed in the House Transportation, Highways & Military Affairs Committee after hearing testimony almost exclusively from utility representatives (Rocky Mountain Power). Utilities argued safety concerns and grid cost-sharing. No active law restricts plug-in solar — the bill simply did not pass.
Current Status: Deferred — Killed in Committee (February 2026). Sponsors plan to reintroduce in 2027.
Is Plug-In Solar Legal in Wyoming?
A dedicated statewide plug-in solar pathway is not currently active in Wyoming; HB 146 is listed as deferred. Before installing or connecting equipment, confirm current utility or interconnection rules, local code or permit requirements, property or lease conditions, outlet and electrical suitability, and the equipment listing and manufacturer instructions.
Last Updated: March 2026
Key Information
| Average Electricity Rate | 11.2¢/kWh |
| Estimated Annual Savings | $155/year |
| TOU Rate Spread | 2¢/kWh |
| Peak Sun Hours/Day | 5.2 |
| Retail Choice | none |
Key Provisions
Would have exempted certified plug-in solar devices from interconnection requirements.
What You Can Do
Traditional rooftop solar is available with standard interconnection. Rocky Mountain Power offers net metering.
What You Can't Do (Yet)
No plug-in solar exemption. Utilities require interconnection agreements. Bill was actively opposed and defeated by utility lobbying.
Available Rebates & Incentives
Net metering available through Rocky Mountain Power. No state solar rebate or tax credit in Wyoming. The federal 30% ITC (Section 25D) expired December 31, 2025.
Incentive Program Links
- DSIRE — Wyoming Solar Incentives — Full list of Wyoming state and utility solar incentive programs.
Demographics (US Census 2023)
| Population | 588,753 |
| Total Households | 243,318 |
| Owner-Occupied | 174,669 |
| Renter-Occupied | 68,649 |
| Single-Family Homes | 182,600 |
| Apartment Units (5+) | 18,900 |
| Median Household Income | $76,176 |
| Median Home Value | $309,700 |
Solar Resource Data (NREL PVWatts)
| Peak Sun Hours/Day | 5.32 |
| Optimal Tilt Angle | 20° |
| Optimal Azimuth | Due South (180°) |
| Est. Annual kWh (800W system) | 1232 kWh |
| Best Solar Months | June, July, August |
Major Utilities
| Utility | Customers | Net Metering |
|---|---|---|
| Rocky Mountain Power | ~150,000 customers | Yes |
| Black Hills Energy | customer count not specified | Yes |
| Big Horn Rural Electric Company | ~4,215 customers | Yes |
| High Plains Power, Inc. | ~13,500 customers | Yes |
News Coverage
- Lawmakers pull the cord on plug-in solar bill — WyoFile (February 21, 2026)
- Utilities are raising concerns about plug-in solar panels — NPR (March 12, 2026)
Explore Your Next Steps in Wyoming
Use these tools and guides alongside the state-specific rules above to evaluate your space, potential savings, and the right connection approach.
- Compare every state — Return to the national tracker to compare enacted laws, pending bills, and unclear jurisdictions.
- Check your WY setup readiness — Review placement, outlet, property, and state-rule questions before choosing equipment.
- Estimate savings in Wyoming — Use your location and setup assumptions to estimate bill savings and storage value.
- Understand off-grid and grid-connected use — Separate truly off-grid or portable solar from equipment that connects to a building circuit or utility grid.