National Solar Rankings

North Dakota Solar Company Rankings – 2026

Updated February 22, 2026

125Companies Evaluated
$21,280Avg. System Cost
Optimum Energy GroupTop-Rated Company

Top Ranked Solar Companies

77.1/ 100

Optimum Energy Group

0BBB Complaints
—Years in Business
DuluthLocation

Optimum Energy Group serves the North Dakota market from their Duluth, Minnesota, base, and their solar work in the Peace Garden State earned them the top ranking. Operating in North Dakota means dealing with some of the most extreme weather conditions in the continental United States, from winter temperatures that can drop well below zero to sustained high winds and heavy snow. What earned Optimum Energy Group the top spot was their willingness to serve a market that many solar companies ignore entirely. North Dakota is one of the least-penetrated solar states in the country, and having a NABCEP-certified installer with a 4.8-star rating from 107 reviews provide service here fills a gap that homeowners feel. The company designs systems built for northern plains conditions, with reinforced mounting and equipment rated for extreme cold. Their understanding of Xcel Energy and Montana-Dakota Utilities interconnection requirements makes the process smoother for North Dakota homeowners. With a composite score of 77.1, Optimum Energy Group is our top-ranked solar company in North Dakota for 2026.

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Customer Reviews

Mike S.

“Had a difficult install, because our house is three stories high with a flat roof, and we completely covered it with 38 solar panels. The install group worked super hard and used a lift to bring...”

Peter P.

“We are so grateful we partnered with Optimum Energy Group for our solar installation! The sales process was informative - but never pushy, installation was quick and professional, and everything in...”

Eric B.

“Very happy with Optimum. Financing was quick and easy. Given timeline was very accurate. Financing company caused a minor panic, but Optimum told me to expect that and then performed quickly enough...”

David W.

“We are really happy with our experience with the Optimum Energy Group. Impressed with the nice neat work they did in the installation and their contract vendor Belknap Electric. Optimum lived up to...”

Chris Y.

“It was a lengthy process from start to finish. It took 6 months, but Solar is up (REC450 Panels) on an 18KW Output system. To shed a little detail, Optimum was working with bad data from another...”

Tim B.

“We were very satisfied with the service from Optimum Solar Group. Their response time to our questions was great. The work was done in a timely manner and we experienced professionalism at all...”

MidnightSynergy

“Optimum Energy Group was easy to work with and did an excellent job, keeping you in the loop as to where things are at, as the install requires a ton of paperwork including permits and inspections,...”

Todd H.

“Optimum recently completed installation of solar panels on my garage roof. The installation crew knew what they were doing and did a fantastic job. Good communication with the office staff from the...”

68.54/ 100

ROOFTOP - Your Roofing Contractor.

0BBB Complaints
10Years in Business
BismarckLocation

ROOFTOP has operated in the Bismarck-Mandan area for 10 years, building a reputation as a dependable exterior contractor in a region where harsh weather puts roofing and energy systems to the test every winter. Originally established as a roofing and renovation company, ROOFTOP has expanded their service portfolio to include solar installation alongside siding, gutters, fencing, flooring, and general exterior work, making them a one-stop provider for homeowners looking to upgrade multiple building envelope components simultaneously. Operating from their location on 26th Street NE in Bismarck, the company serves the broader south-central North Dakota market. Their roofing background gives them a practical advantage when it comes to solar panel mounting, particularly in a climate where freeze-thaw cycles, heavy snow loads, and sustained high winds can compromise improperly installed racking systems. A contractor who understands how a roof breathes, sheds water, and handles structural stress is better positioned to integrate solar without creating long-term problems. The company's 4.9-star Google rating across 75 reviews reflects strong customer satisfaction, although the relatively modest review count is characteristic of the North Dakota market, where the residential solar customer base is still developing compared to states with more aggressive solar incentive programs. Customers have praised ROOFTOP for responsive communication, clean job sites, and straightforward pricing. North Dakota presents unique challenges for solar adoption, including long winters with limited daylight hours and a utility rate structure that has historically made the payback period longer than in sunbelt states. Companies that succeed here tend to be pragmatic operators who set realistic expectations rather than overselling returns, and ROOFTOP's grounded approach fits that profile. With a composite score of 68.54 out of 100, ROOFTOP earns the number two ranking among North Dakota solar installers for 2026.

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Customer Reviews

Morgan

“Rooftop answered my call immediately,and came out that day to help me sort through all my options. When I decided to go with Rooftop they showed up with a very skilled,and capable crew. After one...”

Tim A.

“It's lots of fun to watch people do what they're really good at. Rooftop did an excellent job for us. Clear and complete scope of work. Top quality shingles, underlayment, flashing, ridge vent, ......”

Amy I.

“The last thing we wanted to see was our roof leaking into our attic/ceiling. However, from first contact Rex and the rest of the rest of the staff have made a seemingly unbearable problem a positive...”

Jon J.

“The team from Rooftop was great to work with. They met all of our needs. The actual job only took about 8 hours and not a sign they were there after they cleaned up. I would highly recommend Tyler...”

Lee H.

“We found Rooftop to be professional and accurate in their assessment and estimate of our recent home improvement project. Both Avery and Brent were always immediately responsive to our questions and...”

Tatianna L.

“From the first visit and even after the roofing was finished, Rex has been the biggest help in the process of filing a claim to getting a new roof after hail damage and a leak. He helped us...”

Ashbury C.

“Rooftop was great to work with through out the entire insurance claim and roofing process! Pricing and customer service was great and the quality of work was even better! We own multiple properties...”

jessica S.

“They did an excellent job—completed the work efficiently and left the area clean. Rex was especially great at keeping me updated on the progress and clearly communicating any concerns throughout the...”

66.23/ 100

Feininger Electric Works

0BBB Complaints
65*Years in Business
DickinsonLocation

Feininger Electric Works is one of the oldest continuously operating electrical contractors in western North Dakota, with 65 years of service to the Dickinson area and surrounding communities. Founded in the early 1960s, the company has weathered multiple economic cycles in a region whose fortunes have historically tracked the oil and agriculture industries. That kind of longevity speaks to operational stability and a deep reservoir of community trust that newer firms have not had time to build. The company operates from their location on 1st Street SW in Dickinson, providing residential, commercial, industrial, and oilfield electrical services. Their expansion into solar installation is a natural extension of decades of electrical expertise, and their NABCEP-certified staff brings a level of formal solar training that is uncommon in rural North Dakota markets. Feininger also serves as an authorized dealer for Kohler and Generac generators, which positions them well for homeowners interested in pairing solar with backup power systems for the kind of grid resilience that makes sense in a state prone to severe weather events. With a perfect 5.0-star Google rating across 32 reviews, Feininger maintains a spotless customer satisfaction record, though the small review count reflects the realities of operating in a community of roughly 25,000 people rather than any lack of activity. In markets this size, reputation spreads primarily through word of mouth, and a company that has survived for more than six decades in Dickinson has clearly earned that local confidence. The western North Dakota solar market remains relatively nascent, but it is growing as panel costs continue to decline and battery storage makes off-grid and hybrid systems more practical for rural properties. Feininger's combination of deep electrical roots, generator expertise, and solar capability makes them a logical choice for property owners in the region who want a single contractor capable of handling the full spectrum of their power needs. With a composite score of 66.23 out of 100, Feininger Electric Works holds the number three ranking among North Dakota solar installers for 2026.

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Customer Reviews

Cory R.

“Mitch has always been there when I needed reliable work. His crew of guys are top notch. Great to work with. I would recommend him no matter the size of the project. You won’t go wrong. This is my...”

Brenna H.

“We recently purchased a new construction mobile home. It didn’t have an outlet under the sink for a garbage disposal. Mike came over and installed one in a jiffy. Mitch kept us in the loop the whole...”

Stephanie B.

“I highly recommend Feininger Electric Works for complex electrical work. They recently wired my new tankless water heater, which required a significant power upgrade. They also fixed the problem I...”

Robin N.

“I was very impressed with Mitch and his crew. They came as promised on time and on date. Mitch's crew put in an electric vehicle outlet & new electrical panel on one occasion. And the next year he...”

paul P.

“Had a problem with our main box outside our home. Mike the electrician came by and was able to find the problem in that box and fix it. He also proceeded to come into house and check our panel board...”

Jason A.

“Mitch and the crew at Feininger do great work. Had some significant issues come up with my full new build basement and garage project and they handled it with professionalism and true care for the...”

Bill F.

“This is a solid reliable company! You can guarantee positive results! Highly recommend Feininger Electric works! Better get em while you can. Very busy! And in demand! The workers make this company...”

Joshua G.

“Exceptional Service. Fair Pricing, Great people. Highly recommend. Feininger Electric has serviced many of our rental properties in the Dickinson area.”

All Solar Companies in North Dakota

Showing 20 of 63 companies

Profile
Wegner Roofing & SolarBismarck5.0View
Feininger Electric WorksDickinson5.0View
HighPoint Construction LLCDickinson5.0View
Earl's Electric IncWilliston5.0View
The Solar Guys - Northeastern Wyoming5.0View
Wolf Track EnergyTwo Harbors5.0View
North Peak Solar5.0View
Vetter Construction LLCJamestown5.0View
Bison Roofing5.0View
Polar InsulationWest Fargo5.0View
Jessen Roofing, IncBurlington5.0View
Ideal Insulation LLCWest Fargo5.0View
Continental Battery Systems of FargoFargo5.0View
Advantage Electric Inc.Jamestown5.0View
Contractor Dickinson ND | Bartow Builders5.0View
Eco Sun Energy5.0View
RJ Energy SolutionsFargo5.0View
Black Hills Solar, Inc.Rapid City5.0View
Prosperity ElectricGrand Forks5.0View
Lightspring Solar - North Dakota Solar Design & InstallBismarck5.0View

North Dakota Solar Resources

Energy Laws & Incentives

Property tax exemption for solar (5 years)|Net metering at retail rate|No state solar tax credit|Limited state-level incentives

Solar News

Useful Links & Blogs

*Companies displaying 15 or more years in business are typically established electrical, roofing, or general contracting firms that expanded into solar installation in more recent years. The years shown may reflect the age of the parent organization or a strategic partner, not necessarily the solar division itself. This distinction is worth considering when comparing to dedicated solar installers, as purpose-built solar companies may offer more specialized expertise despite a shorter operating history.