Solar Panel Installation in Williston, ND
Local sun, utility rules, permits and installers
Williston has about 1,150 kWh a year per kW of rooftop solar (our estimate). Your utility decides what exported power earns, so see the rules for Montana-Dakota Utilities and Mountrail-Williams Electric below, then get quotes.
Williston solar at a glance
Utility rules and programs for Williston
Montana-Dakota Utilities and Mountrail-Williams Electric serve Williams County, so which rules apply depends on your address.
| Utility | Type | Solar export rule |
|---|---|---|
| Montana-Dakota Utilities Co | investor-owned | Montana-Dakota’s Rate 95 lets systems up to 100 kW choose net billing: generation is subtracted from use for the billing period and extra is paid 3.416 cents per kWh (January 1, 2026). Generator and load must be on the same site, and a contract of at least one year is required. |
| Mountrail-Williams Elec Coop | member-owned cooperative | Ask this utility for its current solar export rate and programs; we have not verified them. |
Program details are from each utility’s own pages (read October 2026). See the North Dakota incentives table for statewide credits and a status for every program.
Permits and approvals in Williston
- City of Williston Building Department: permit information · 701-577-8100
- The city enforces its adopted building codes inside city limits; Williams County issues permits only for unincorporated areas. The page lists permit applications and requirements; check it before you start.
- The utility must approve the connection before you switch on: Montana-Dakota Rate 95 · your own utility’s interconnection page.
- Check any contractor on the ND State Electrical Board contractor lookup before you sign.
- We found no North Dakota law that overrides an HOA or covenant banning solar panels, so check your covenants; the state does recognize written solar easements (NDCC 47-05-01.1) for sunlight access.
Fees and steps change; confirm with the office before you start. We have not verified timelines for Williston.
Costs and savings
We do not have verified installed prices for Williston alone. The North Dakota figures above show what to expect; real quotes depend on your home, equipment and installer. Try the solar savings calculator, and get at least two written quotes.
Choosing an installer
- License: check the contractor on the ND State Electrical Board contractor lookup and that the license covers this work.
- Quote: ask for an itemized written quote that names the equipment, warranties and who pulls the permit and handles the utility approval.
- Compare: get two or three quotes and compare them line by line, not only the total.
Get solar quotes in Williston
Tell us about your project in Williston. We reply ourselves and match you with a licensed installer who serves your area. It is free, with no obligation, and nothing is shared with an installer unless you choose one.
More for Williston
Home Battery Installation in Williston · Backup Generator Installation in Williston · Home EV Charger Installation in Williston · Williston energy guide · North Dakota energy guide.
Solar Panel Installation in Williston FAQs
Is solar worth it in Williston?
The sun is strong (about 1,150 kWh a year per kW, our estimate), but export credits are low, so solar pays most when sized to what you use at home or paired with a battery. See the North Dakota incentives for the state credit.
Is there a federal solar tax credit in 2026?
No. The federal 25D credit ended for expenditures after December 31, 2025. North Dakota has no current state solar income tax credit, but it exempts solar, wind and geothermal systems from property tax for five years after installation.
Do I need a permit for solar panels in Williston?
Usually yes, and the utility may need to approve solar and batteries. City of Williston Building Department handles permits in Williston; see the permit information above.
How do I find a licensed installer in Williston?
Use the quote button on this page. We reply ourselves and match you with a licensed installer who serves your area; you can check any contractor on the ND State Electrical Board contractor lookup.
Sources: sunshine and climate NASA POWER; hazards FEMA National Risk Index; utility numbers EIA-861 (2024); prices EnergySage (October 2026) and Generac (U.S.); credits IRS and the North Dakota Office of State Tax Commissioner; permit information from the city or town’s own page; utility programs from each utility’s own pages (October 2026). General information, not financial, tax, legal or electrical advice. See our editorial policy.