Solar Panel Cost in Williston, North Dakota
Local pricing, savings, and net metering data for Williston homeowners.
Solar in Williston: What Homeowners Should Know
Williston sees an average of 4.9 peak sun hours per day, which is what ultimately determines how much electricity a rooftop system produces here. A standard 8 kW system (about 20 panels) generates roughly 11,446 kWh each year in Williston — and paired with North Dakota's local electricity rate of $0.097/kWh, that's where the savings come from.
At those numbers, a Williston homeowner saves about $93/month ($1,110/year). Against a $23,200 system cost (about $20,200 after North Dakota state incentives), that works out to a payback of about 18.2 years, after which the system produces essentially free power for two decades — an estimated $17,725 in lifetime savings. Note: the 30% federal tax credit expired at the end of 2025 for purchased systems, though a solar lease or PPA can still pass it through. The local grid is served by Montana-Dakota Utilities, whose net metering policy directly affects how much credit you earn for surplus power.
Cost & Savings Breakdown
Based on a standard 8 kW system in Williston
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in Williston
- 1.Get at least 3 quotes. Prices in North Dakota vary widely between installers — comparing bids on the same 8 kW system is the fastest way to avoid overpaying.
- 2.Confirm Montana-Dakota Utilities interconnection experience. An installer who regularly files with your local utility will move your permit and net-metering paperwork through faster.
- 3.Check licensing & the warranty. Look for NABCEP-certified installers and a workmanship warranty of 10+ years on top of the standard 25-year panel warranty.
- 4.Size for your actual usage. With 4.9 sun hours/day in Williston, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in Williston?
Solar in Williston, North Dakota costs approximately $23,200 for a 8 kW system, or about $20,200 after state incentives. The 30% federal tax credit expired December 31, 2025 for purchased systems, though solar leases and PPAs can still pass it through.
What is the solar payback period in Williston?
The estimated payback period for solar in Williston is 18.2 years for a standard 8 kW system, based on local sun hours of 4.9 hrs/day and a rate of $0.097/kWh.
Is solar worth it in Williston?
For most Williston homeowners, yes. With 4.9 peak sun hours per day and an electricity rate of $0.097/kWh, a typical system saves $1,110 per year and around $17,725 over 25 years after paying for itself in 18.2 years.
How many solar panels do I need in Williston?
A standard 8 kW home solar system is about 20 panels, producing roughly 11,446 kWh per year in Williston at 4.9 sun hours/day. Your exact size depends on your household's electricity use.
Does Montana-Dakota Utilities offer net metering?
Montana-Dakota Utilities offers Full Retail net metering. Full retail rate.