Is balcony (plug-in) solar legal in Montana?
Montana has no plug-in solar law yet (checked Sep 28, 2026). Without one, your utility's normal rules for connecting solar apply, so ask your utility before plugging in a kit.
Montana law
No state law yetState law: no plug-in solar law yet.
Federal bill, not law
The federal bill: H.R. 10851
H.R. 10851, the Socket Full of Sunshine Act, was introduced in the House by Rep. Rob Menendez (D-NJ-8) on Oct 19, 2026 and referred to the Committee on Energy and Commerce. It has no cosponsors and has not passed the House or the Senate.
If it became law, it would require every state to consider rules for plug-in solar devices of up to 1,200 W, such as dropping interconnection agreements and utility approval, fees, insurance and extra equipment. Considering is not adopting: even if it passes, it would not make plug-in solar legal in Montana by itself.
It would also offer grants to states that set up rebate programs for low- and moderate-income households. None of this exists unless the bill passes, and even then a rebate in Montana would depend on the state applying for a grant.
Sources: H.R. 10851 on congress.gov (status), the introduced text (govinfo.gov). Status checked .
More about plug-in solar in Montana
How much would a plug-in solar kit save in Montana?
It depends on which way the panels face, their tilt, how much of the power your home uses as it is made, and your utility's rate. The average residential electricity price in Montana was 13.9¢/kWh (our 12-month average of EIA data, Aug 2025–Jul 2026). The calculator on canipluginsolar.com models it hour by hour for your address.
Before you buy a kit in Montana
Neighboring states
Planning a kit in Montana? Get your step-by-step checklist, from the law's own wording.
Renting in Montana? Write a letter to your landlord, matched to Montana's rules.