National Solar Rankings

Optimum Energy Group

0BBB Complaints (3yr)Excellent
—Years in Business
77.1/100Overall Score

Detailed Profile

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.

Equipment & Products

Solar Panels

REC

Certifications

NABCEP Certified

Warranty & Guarantees

Production Guarantee
No

Operations

Company Type
Local / Regional

Financing Options

cashloan

Google Reviews (8)

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...”