Plug-in solar
No bill yet Not under a dedicated law. Montana has no plug-in solar bill so far. The full rules for Montana.
A typical 800 W kit on a south-facing balcony railing would make about 774 kWh a year here, worth roughly $102 at Montana’s current price if you use 85% of it at home.
What everyday things cost in Montana
| Space heater on high, one hour | $0.23 | Heater cost calculator |
|---|---|---|
| Charging an EV at home, per 100 miles | $5.04 | EV charging calculator |
| 100 W of always-on load, per year | $136 | Standby calculator |
| Swapping 15 old bulbs for LEDs, per year | $130 | LED calculator |
Home energy rebates
Montana wasn’t listed as taking applications for the federal Home Energy Rebate programs (HOMES or HEAR) in an Oct 12, 2026 review of state program pages. Programs open and close as money runs out, so check your state energy office. The federal tax credits for efficiency upgrades and home solar ended after 2025. What’s left in 2026.
Gas lawn equipment
We don’t list any local gas leaf blower bans in Montana yet. All local bans.
Clotheslines
Montana has no right-to-dry law, so HOA rules on clotheslines generally stand. Right-to-dry laws.