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About Third Sun Solar

About Us

What began in an attic decades ago has turned into a diverse team of experts passionate about bringing sustainable energy to Ohio and beyond. At Third Sun Solar, we believe our story, our mission, and our people lead to better solar solutions and are what set us apart. Learn more about us and how we can help you go solar today.

Our Mission

Accelerate the shift to clean energy. Our approach to business is based on four core values:

We believe that business can be a force for good, and that we are very lucky to earn our livelihoods in a way that makes the planet a better place.  In addition to serving our customers, we believe in the important role we have in serving and supporting each other, along with our communities and the other stakeholders we work with.  Third Sun Solar is a different kind of company, and our customers see this as our people take genuine pride in delivering the very best solar solutions. 

Every one of our team members is passionate about solar. It shows in every Third Sun Solar project. We do what it takes to ensure the delivery of the finest system and the best customer experience. Our experience allows us to work intelligently and efficiently, providing greater value for our customer’s investment. Our team takes pride in their dedication to do what it takes to get things done right. That is the Third Sun Solar way. 

Third Sun Solar is filled with dependable, honest and reliable people. We keep our promises and strive to do it right the first time.  Modern solar is about more than idealism — it is a practical and cost-effective technology. We understand that the decision to go solar may sometimes seem daunting. Our high integrity approach sets us apart from less established companies that may not be around to answer questions or provide follow up service during the 25-35 years of system operation. 

Third Sun Solar has many years behind us and a bright future ahead. Our hunger for knowledge and continuous improvement keeps us at the top of our ever-evolving industry. Our staff are on the pulse of cutting-edge solar advancements, so you don’t have to be. We believe in solar, and we know that it can only truly succeed as a clean energy solution if it is economically competitive. We strive for greatness and are not satisfied with the status quo. 

Our Story

About 25 years ago, Michelle and Geoff Greenfield began to build a sustainable home on a piece of rural land in SE Ohio beyond the utility Grid power. They knew they wanted to go solar but the only solar experts they found were in California. 

With the same determination that was driving the rest of their modern homesteading project, the couple poured over the available books and magazines and took on their first solar project for their home at “Hooper Ridge”.  The choices and options seemed overwhelming at first but Geoff patiently gathered information, pushing past the marketing hype to discover what really worked, and how the components would best match up for an “optimized” design.  People who had heard about the Greenfields’ energy independence started coming to them for advice, and Geoff helped install several systems on the weekends, gaining both experience and his first referrals, a key to the company’s future growth. 

With a toddler, a baby and a partly finished home,  the Greenfield’s decided to pursue their passion for solar solutions and Geoff left has job with a housing non-profit to go all in on solar.  In 2000, Third Sun Solar was founded in the attic of their home along with a pickup truck and a cell phone.  As the interest in solar grew, so did the company, and today Third Sun Solar has become a respected national leader and a household name in Ohio.  

While the technology and economics of solar sure have changed over the years, the DNA at the heart of Third Sun Solar hasn’t.  Driven by a mission to Accelerate the Shift to Clean Energy, our team still is focused on the best technology, optimized design, and a customer experience that earns referrals. 

About our name.

We are often asked about the significance and origin of our name. There are quite a few origin stories, and in the end they all are important and fun!  

  • The original concept for the name was simply a play on the words “sun” and “son”. Michelle and Geoff were talking about the business while watching their two boys play with toys, and Michelle pointed out that the business they were nurturing had become their third child.   
  • This name idea was reinforced by its tie in with the book Entropy by Jeremy Rifkin. In it, Rifkin holds that all earthly energy derives originally from the sun. The first solar age ended as the last forests were cut; industrializing societies evolved from biomass fuel to fossil fuel—coal, and then oil—in the second solar age. Now, we are seeing the dawn of a transition to direct solar power—our third solar age.
  • Yet another “Third Sun” name story is tied to the three different forms of solar energy that we originally installed.  Back in the day (before photovoltaics made the other forms obsolete) we installed solar photovoltaic systems (making electricity), solar thermal systems (making hot water) and wind generators (making electricity from wind, an indirect outcome of solar energy heating the planet unevenly).
  • In Third Sun Solar’s continuing efforts to use business as a force for good, it became a Certified Benefit Corporation in 2012. At the time, it was the 3rd business to secure the B Corp certification in Ohio, leading the way for other businesses to do the same.

Maybe there are others… let us know if you have any fun ideas about how our name means something we may have missed.

Our Future

Based on a commitment to business integrity, design optimization, and delighting customers, Third Sun Solar rapidly became successful. In order to support the growth and hire new team members, we relocated first to the Ohio University Innovation Center in 2003 then to our current headquarters in 2012.

Third Sun Solar has grown beyond its humble beginning as a “mom & pop” business that simply wanted to make the world a better place and is now the leading solar installer in Ohio and a top 100 installer in the US. With over 1250 clean energy projects generating more than 25 MW of electricity throughout the country, Third Sun Solar is proud to make progress every day on our mission to accelerate the shift to clean energy with industry-leading solar solutions.

Third Sun Solar

We are often asked about the significance and origin of our name. Although multiple factors played key roles in selecting the name, the main inspiration for Third Sun Solar came from the book Entropy by Jeremy Rifkin. In it, Rifkin holds that all earthly energy derives originally from the sun. The first solar age ended as the last forests were cut; industrializing societies evolved from biomass fuel to fossil fuel—coal, and then oil—in the second solar age. Now, we are seeing the dawn of a transition to direct solar power—our third solar age.

In Third Sun Solar’s continuing efforts to use business as a force for good, it became a Certified Benefit Corporation in 2012. At the time, it was the 3rd business to secure the B Corp certification in Ohio, leading the way for other businesses to do the same

Giving Back

Third Sun Solar makes a special effort to support worthy causes in our community. We enlist the help of our employees and friends in giving financial and volunteer support to the people and organizations that are making a difference.

Third Sun Solar is committed to having an impact in the local communities where we are headquartered and work. One way to demonstrate that impact is through charitable giving or donations. Community requests for donations exceeds the resources available for us to give, so unfortunately we are unable to contribute to every request we receive. Because of this, our company has determined its charitable priorities to be the in the following areas:

Is it possible for a business to be a force for good as the challenges of social progress and climate converge? Join Third Sun Solar CEO and 20-year solar industry expert Geoff Greenfield as he discusses this important subject with a diverse selection of people leading the change the clean energy economy. Guests range from business leaders and policy advocates to the “boots on the roof”: the rapidly diversifying workforce of the clean energy sector.

Reach Out

If you are part of an organization requesting funding in the above areas, please fill out the form below to submit your request for donations. Donation decisions are reviewed quarterly. Third Sun Solar management will review and let you know if we can honor your request. Thank you!

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To learn more about our team or start your solar project, get in touch with the Third Sun Solar Team today.