☀ SolarInstallers.io

Solar by State / Montana / Great Falls

How much does solar cost in Great Falls, MT?

Here's what a typical home solar system costs in Great Falls, Montana in 2026 — system size, installed price, incentives, production, savings and payback.

Get solar quotes Compare Great Falls installers

Typical numbers for a Great Falls home

Based on Montana pricing and the local solar resource. Actual cost depends on your roof, shading, equipment tier and installer. For a precise figure, run the calculator with your own power bill.

  • Average peak sun hours—
  • Average electricity rate—
  • Typical price per watt—
  • Typical system size—
  • Gross system cost—
  • Federal tax credit—
  • Net cost—
  • Estimated year-1 production—
  • Estimated year-1 savings—
  • Estimated payback—
  • 25-year bill savings—

Estimated based on the information above and typical solar assumptions for the area. Actual production, pricing, incentives and savings vary by property, utility, installer and financing terms. This is not a quote.

How to check a Great Falls solar quote

  • Effective price per watt should land in the typical range shown above.
  • Watch for a large "dealer fee" folded into financed deals - it can add 15-30%.
  • Confirm the workmanship warranty is 10+ years and in writing.
  • Compare quoted year-1 production against the estimate above - inflated production overstates savings.
  • Get at least three quotes before signing anything.

Open the Quote Checker →

Estimated net solar cost in Great Falls
$0
—

Next steps

Get a location-specific estimate, then compare vetted installers serving Great Falls.

Get solar quotes Calculate my exact cost

Other Montana cities

All of Montana →

Solar installers serving Great Falls

Montana installer directory — coming soon

We're adding verified, licensed installers for Montana. In the meantime, tell us about your project and we'll match you with vetted solar companies that serve your ZIP.

Get matched with installers

Great Falls installer directory →

Related offers for solar households

Options that pair with going solar - financing for a cash purchase, EV charging, and electricity-plan shopping where the market is deregulated.

Frequently asked questions

How much does solar cost in Great Falls?

Based on Montana pricing (about $2.80-$3.90/W installed before incentives) and the local sun resource, the panel below shows a typical system size, net cost and payback for a Great Falls home. Your number depends on your roof, shading, equipment and installer.

What incentives can Great Falls homeowners get?

Residential alternative-energy tax credit up to $500; no state sales tax; property-tax exemption for the added value.

Where can I find solar installers in Great Falls?

See the Great Falls installer directory, or tell us about your project and we'll match you with vetted companies that serve the area.