Arch Solar


Tony Kieffer, Founder and President
Tony brings more than 25 years of experience in international management and management consulting to ArchSolar and has worked in environmental technology, energy and finance.

tk-mug-shotThroughout his consulting career, Tony has focused on the intersection of strategy and technology, helping client organizations drive top line growth by focusing on new markets, new customers and new offerings by integrating new technologies into their business models.

Today, Tony stands at the helm of ArchSolar, bringing vision and cutting edge technological expertise to making ArchSolar’s integrated solar technology product offerings.

Tony has received a BA and MA from Stanford University and Master’s in International Management from University of California San Diego, and is fluent in Spanish and Mandarin.

He can be reached at



Merritt Carey, Esq., Marketing
Merritt has spent the past 10 years as a marketing and communications consultant, with a previous background in law. Over time, she has developed a specialty in sustainability and how to help companies tell their story. Merritt works with clients on both the strategic level, identifying market opportunities and developing marketing and communications plans, as well as on the operational and tactical level.


Glenn Kersteen, Finance

Glenn Kersteen is the owner of G5 Tax and Consulting Services. Glenn uses his expertise in business, finance and accounting to help new start-ups, troubled veterans and established businesses take the next leap to growth and success. Glen founded Runyon Kersteen Ouellette in 1979 one of Portland’s leading accountancies, and among other notable accomplishments, he was appointed in 1987 appointment by Governor McKernan to the Maine Board of Accountancy, and in 1989 was elected as Chairman. He continues to prepare tax returns and consults for hundreds of individuals, businesses and non-profit entities. Glenn has worked over 35 years with leading agriculture producers throughout the state of Maine.


Justin Schair, Director of Business Development
Justin Schair works on the development of new solar projects, including greenhouses and light
industrial applications, in concert with other developers, growers, municipalities, end-users and capital partners.

In addition to his capacity as head of business development for ArchSolar, Justin serves as president of the Casco Passage companies, investment and consulting businesses focused on energy storage, technology and real estate.

Prior to joining ArchSolar, he held senior roles in independent political campaigns focused on reform politics, including for Senator Angus King. Prior to his work in politics, he served as the U.S. Press Officer for Concern Worldwide, an international emergency relief and development organization with operations throughout the world, and as a reporter for the New York Daily News.

He serves on the board of directors of Thermal Energy Storage of Maine, and with non-profit organizations that include the Maine Center for Public Interest Reporting, the Maine Jewish Museum and the Lerner Foundation.

A Maine resident, Justin is a graduate of Hofstra University and an Executive MBA candidate at Northwestern University’s Kellogg School of Management in Chicago, where he commutes.






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