Solar Energy in Montana (2026)

4 rules on the books across Montana, 2 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Panel Permits

Permits required for installing rooftop or ground-mounted solar panels, including electrical inspections and interconnection approvals.

Montana requires regulated electric utilities to offer net metering to customers whose solar systems generate no more…

Billings zoning code exempts small on-site rooftop or ground solar arrays (Tier 1) from a zoning permit, but larger…

In unincorporated Yellowstone County, Montana, a rooftop or ground-mounted solar array is regulated as a Solar Energy…

State and local laws that limit what HOAs can restrict when it comes to solar panel installation, placement, and appearance.

Montana has never passed a statute voiding covenants that ban or restrict solar panels. There is no "reasonable…