Our Experience

In solar, experience matters. Having spent more than 20 years constructing over 1,250 clean energy projects, we’ve learned a thing or two. Whether you are putting a system on your home or a large building, you only get one chance to do it right. Tap into our experience and contact a solar expert today.

Our Credentials

Kokosing Industrial

Headquartered in Westerville, Ohio, Kokosing is one of the largest family-owned construction companies in the Midwest and Mid-Atlantic. Kokosing’s primary business lines include industrial, transportation, pipelines, water and wastewater, marine and renewable energy. Known for unwavering integrity and exceptional safety and quality, Kokosing’s companies provide extensive resources for its customers. Third Sun Kokosing Solar brings more than 20 years of solar installation experience and 71 years of construction experience to homeowners, businesses, and organizations.

Better Business Bureau

The last thing we like to hear from customers is that they had a bad experience with another solar company. Solar is a competitive market and there are many companies out there who are in it for the wrong reasons. Third Sun Solar has been a member with the BBB for over 19 years, has an A+ rating, and many reviews from happy customers. 



NABCEP Solar PV Installation Professionals

NABCEP (North American Board of Certified Energy Practitioners) is the “gold standard” certification in the solar industry. Third Sun Kokosing Solar is proud to have Certified Installation Professionals on staff.  Third Sun Kokosing Solar’s Director of Solar Strategy, Geoff Greenfield, is the Vice-Chair of the NABCEP Board of Directors.


Amicus Solar is a purchasing cooperative made up of leading solar installers with a like-minded approach to business.  Membership in Amicus Solar allows Third Sun Kokosing Solar to achieve “scale” while still maintaining nimbleness, customer focus and “family business feel” of a smaller local company.

Our Work

Check out the projects we’ve completed for homeowners, commercial customers, and more. We’d love for your solar project to be next. Give us a call today.

Impact Report

Interested in learning more about our work? We’d be happy to help! Contact us today to speak with a member of the Third Sun Kokosing Solar team.