Solar in Williston, ND
With Montana-Dakota Utilities's electricity at about 12.0¢ per kWh and 1,331 kWh of sun per kW, solar is not worth it for a typical Williston home today: about a 22.1-year payback.
- Payback, typical home
- 22.1 yrsNorth Dakota: 20.3 yrs
- 25-year net
- $1,962after paying $12,750
- Sun
- 1,331kWh per kW per year
- Electricity
- 12.0¢33% below U.S. average
A typical Williston home, by the numbers
| Utility | Montana-Dakota Utilities |
|---|---|
| Electricity use | 828 kWh a month |
| Best-value system | 3.7 kW, about 9 panels, 4,923 kWh a year (50% of use) |
| Cost | $12,750 |
| First-year savings | $589 |
| Payback | 22.1 years |
| Exported power | Avoided-cost export credit (North Dakota rule) |
Cash purchase, no federal credit, 2.1% yearly rate increases. Run it with your own numbers.
Homes in Williston
- Owner-occupied homes
- 47%
- Single-family detached
- 37%
- Median home value
- $286k
- Median year built
- 2003
- Population
- 28,056
Census ACS 2020–2024.
Installers working in Williston
Public installation records for North Dakota don't name installers, so we can't rank local companies here. Browse installers in North Dakota.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Williston
Is solar worth it in Williston, ND?
For a typical home in Williston, solar is not worth it at 2026 prices: a 3.7 kW system costs about $12,750 after state incentives, saves about $589 in year one and pays back in about 22.1 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Williston?
About 1,331 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% more than the North Dakota average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Williston?
Most homes in Williston are served by Montana-Dakota Utilities, at about 12.0¢ per kWh on average. Some areas are served by Mountrail-Williams Electric Cooperative.
How much do solar panels cost in Williston?
A fair cash price is around $3.00 per watt before incentives, so about $12,750 for a 3.7 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Dickinson 21.5 yrs
- Minot 20.8 yrs
- Bismarck 21.4 yrs
- Grand Forks 18.3 yrs
- West Fargo 15.1 yrs
- Fargo 14.8 yrs
- All of North Dakota
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.