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About Us

Long Island Solar Power Pioneers

Who is GreenLogic

Founded in 2005, Greenlogic is one of the longest standing solar power providers on Long Island, helping our customers save millions in energy bills. Our quality, reliability and high level of performance make us one of the most referred solar panel companies on the Island. Our talented team of energy consultants, designers, installers and customer service representatives are some of the most educated and experienced solar power professionals in the area.

About section 2

Here are just a few of the things that make us unique.

We're With You for Life

GreenLogic approaches each customer as a lifetime engagement, starting with our commitment to system output, reliable performance, and return on investment. Whether your system is 20 days old or 20 years old, we’ll provide the support you need.

Proprietary Tools for System Performance

We developed proprietary tools and methodologies to accurately predict and track system performance. These tools ensure our custom-designed systems produce the most power and savings at the lowest cost.

Award-Winning Leadership & Service Teams

GreenLogic has won numerous industry awards for leadership, quality, and customer service including several utility Trade Ally Awards and SunPower's Residential Dealer of the Year Award.

Energizing Long Island

GreenLogic is an active supporter of the Long Island communities that we live and work in. Each year we donate a solar power system and sponsor fundraisers as a way to give back.

Technology Partnership

Meet the Partners that Help Us Shine.

GreenLogic also has experience designing and installing wind, geothermal, solar hot water and solar pool heating systems. We partner with the top technology providers in each field to deliver a high quality system to meet your specific renewable energy requirements. Contact us to learn more about our other renewable energy capabilities.

Techology Partners
Sunpower logo
Tesla logo 1
Sunvault ess1 3 garageangled 39kwh 27apr2346

Marc Cléjan


Marc Cléjan has a proven track record of building successful and profitable businesses gleaned from more than 30 years of management expertise. He left the corporate sector to found GreenLogic, a for-profit company aligned with his growing desire to help make the world a better place. In preparation for this new focus, he earned a Masters Degree in Environmental Management from New York University, and received his solar, wind, and geothermal certifications.

Previously, Marc was president of Odyssey Capital Corp., a Manhattan real estate investment and management firm specializing in corporate temporary housing. Prior to establishing Odyssey Capital, Mr. Cléjan was a corporate vice president at Health Management Systems, Inc. (HMSY) in New York City for 12 years, when he helped sales grow from $17 to $110 million, and the company issued a very successful IPO. Mr. Cléjan earned a Bachelor of Science in Business from Cornell University.

He lives in East Hampton, N.Y., with his wife and two children.


Meet Our Founders

Marc, Nick and John joined forces to build a company that would help make the world (and especially Long Island) a better place.

Marc Cléjan
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Nick Albukrek
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John Rocchetta
Vice President
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Meet Our Team

Working around the clock to provide the best service from the beginning of the conversation until long after the solar installation.

Our talented team makes going solar stress-free for homes and businesses.

A Smith
Andrew Smith
Anne mariconda
Anne Mariconda
Danny volkomer
Danny Volkomer
Brian dorgan
Brian Dorgan
Jean pierre
Jean Pierre
Julie sullivan
Julie Sullivan
John murphy
John Murphy
Mark allen2
Mark Allen
Kyle guerra
Kyle Guerra
Matthew burmeister
Matthew Burmeister
Michael panzarino
Michael Panzarino
Paul kessler
Paul Kessler
Morgen Hand
Michael Kovar
Michael Brunet
Joshua Marsteller
Claire Farry
Bob Skypala
We’re hiring

Join Our Award -Winning Team

Our award-winning, Long Island solar power company is currently seeking experienced solar professionals to join our team!

Apply now
Career - About us