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Full Spectrum Solar

We provide excellent customer service and install the best photovoltaic systems available at a competitive price. Instead of a commissioned salesperson, you will work with a skilled and experienced project manager to arrive at the right system for your needs, who will guide the project from contract to commissioning. Established in Madison in 2002, we will be here if you ever need warranty support or want to expand your system.
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U.W. Madison mechanical engineering alumni, Burke and Mark O'Neal, started Full Spectrum Solar in August 2002. Burke had returned from his position as a lead engineer with one of the largest California solar energy companies at that time, and with Mark, they envisioned building an environmentally friendly contractor that would install the best quality photovoltaic systems possible, with unmatched customer service and at a competitive price.

Today, Full Spectrum Solar is one of the most highly-credentialed solar energy contractors in the Midwest. Among our experienced staff, we have degreed mechanical and electrical engineers, with over 40 years of combined renewable energy experience between them. Our staff includes master electricians, two with over 15 years of photovoltaic installation experience, journeyman-level electricians, NABCEP-Certified Installers, and solar-experienced roofers.

We are proud of our zero-energy-cost office and shop on East Washington Ave and our energy-efficient vehicles, including three electric vehicles. In early 2013, our office and shop was awarded an ENERGY STAR 100/100 rating. That’s the highest rating in Wisconsin; better than 99 percent of comparable buildings!

Our team has installed over 800 of the finest quality solar energy systems in southern WI, for homes, apartments, and a wide variety of businesses and non-profits. Our most visible projects include Forest Edge Elementary School, Dane County Job Center, Willy Street Grocery Co-op, Troy Gardens Co-housing, and Holy Wisdom Monastery in Dane County; the Milwaukee Recycling Center in Milwaukee; Organic Valley Cooperative in La Farge; Evansville Community Pool in Evansville; and Dominican Eco-Justice Center in Racine.
Year Established
2002
Phone Number
6082849495
Reasons Why You Should Work With Us
  1. Instead of a commissioned salesperson, you will work with a skilled and experienced project manager to arrive at the right system for your needs, who will guide the project from contract to commissioning.

  2. We provide excellent customer service and install the best photovoltaic systems available at a competitive price.

  3. Established in Madison in 2002, we are a local company that will be here if you ever need warranty support or want to expand your system.

Approved EnergySage badge

Approved installers passed our rigorous screening criteria for experience, licensing, and positive reviews.

We speak

English

Services Offered

  • Installation
  • Financing
  • Solar Repair & Maintenance

The Full Spectrum Solar team consists of engineers, licensed electricians and NABCEP certified installers who are committed to the highest quality work and customer service. Our team includes three degreed engineers, two master electricians with over 15 years of photovoltaic installation experience, two journeyman-level electricians with over 12 years of photovoltaic experience, NABCEP-Certified Installers, and solar-experienced roofers.

Associated product manufacturers

Workmanship Warranty

5 year workmanship warranty covering any defects in our work or problems caused by our work, in addition to the manufacturers' warranties. Our inverter manufacturers provide a 5 to 12 year warranty with labor reimbursement.

Licenses

Master Electrician #908748, #1080240
Journeyman Electrician #1485055, #1012013
Electrical Contractor License #1055530
General Contractor License #1055530
HVAC Contractor License #1055530

Insurance

$1,000,000 liability insurance, worker's compensation, errors and omissions coverage, vehicle coverage through Acuity Insurance Company

Certifications

Full Spectrum Solar holds Design and Installation Certificates from the National Accredited Board of Certified Energy Practitioners (NABCEP), Solar Energy International, SMA Industries, Fronius, Enphase Energy, Generac, and the Midwest Renewable Energy Association.

Industry Certifications

  • North American Board of Certified Energy Practitioners
  • Solar Energy Industries Association

Manufacturer Certifications

  • Authorized Solar Installer

What Customers Are Saying

4.5
13 reviews
4.5
Average Rating 13 review(s)
Response
4.5
Quality
4.5
Value
4.5
Service
4.5
Leave a Review
Full Spectrum does not do off grid installations

If you want an installation that is not tied to the grid, Full Spectrum will turn down your project. They were friendly and responsive, but they are limited in their offerings.

Posted by phillip on Feb 26, 2024
Green Energy a Win for us

We are nearly nine months into having our solar panels on our roof and find it exciting to see the offset to our carbon footprint. We decided to get an EV when we installed solar panels and it feels like a double win. Ron C, our project manger at Full Spectrum Solar is very responsive as we learn about our system through the seasons. We also installed heat pumps and our summer cooling has changed dramatically with the heat pumps and solar panels. We don't have a full years worth of data yet, so it's too soon to tell the exact payoff. We can tell you that we are trending to payoff the systems sooner than we anticipated. Overall we are very satisfied with the tax credits and rebates to make these green energy strategies winning solutions financially and more importantly for our climate footprint.

Posted by pulvermalice on Feb 19, 2024
Choose Full Spectrum

We were the first in our neighborhood to put panels on our roof and we haven't looked back. Full Spectrum was one of 3 vetted by Renew WI so we limited our search to those. They were also the only company of the 3 we interviewed that had a fish eye lens and took the time to go into the attic. By having a local presence, we knew they'd be there if we ever needed them.

Posted by ccrosby80033 on Feb 15, 2024
home solar system

We elected to place 19 panels with a capacity of 8.4 kW in 2020. The install occurred during the early phase of the pandemic and the folks at Full Spectrum were very accommodating. Since going "live" we've generated 26.26 MwH of electricity! Our utility bill is less than half what it was prior to converting. The original inverter installed was faulty and FS replaced it quickly. The entire system has been hands off, no maintenance. I look forward to the next step, getting an EV that I can charge during sunlight hours and reverse flow to help run the house at night. I'd highly recommend Full Spectrum, and with the tax credit, it's a no brainer to go solar!

Posted by dansbarry on Dec 19, 2023
Top notch work

The folks from Full Spectrum did a great job for us and I would gladly recommend them!

Posted by cloudydays33 on Dec 19, 2023
Price was fair, service was fantastic

The service techs were amazing, they got the job done quick and I’m highly impressed by the care they took to make it fit with my house. They put the customer first, when the cells I ordered were discontinued they gave me the better ones at not additional cost. I wish I had more roof to have them come back

Posted by chris on Dec 19, 2023

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