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Liberty Staff

Ben Hatfield - Solar Project Manager

Ben Hatfield

Project Manager Ben caught the solar bug at a young age after visiting the New Alchemy Institute in Falmouth, MA, a research center focused on sustainability, where he was first exposed to the virtues of renewable energy. After gaining experience with a midcoast-based mechanical contracting company, Ben came to work with ReVision in spring of… Read more

Ryan Herz Master Electrician Maine

Ryan Herz

Ryan is a Maine native, with a hearty background in construction and trade work. After receiving an Associates degree in Electrical Power and Automation Technology with honors from Eastern Maine Community College, he stayed in Maine to work in industry and for an electrical contractor. Since joining ReVision Energy in 2005, Ryan has installed hundreds… Read more


Dennis Rumba

Born in Rockport, Maine, Dennis grew up in southwestern New Hampshire before coming back to Maine to study at Unity College, where he graduated in 2000. Prior to joining ReVision he worked for 10 years as a stonemason throughout the Northeast, including New Hampshire, Vermont, New York, Massachusetts and Maine. Dennis is also a Maine… Read more

Bernie Nye - Installer Liberty Maine

Bernie Nye

Bernie is a Waldo County native who has worked as a farmer, timber framer, and musician. He likes writing, singing songs and cooking dinner. Bernie is an integral part of our heat pump installation and service department, spending his days running refrigerant line, hiding said line, and commissioning systems. His mellow attitude and strong work… Read more

Portland Staff

Josh Rollson - Purchasing Manager

Josh Rollson

Josh grew up in Vermont in the construction trades, learning post and beam and log home construction and passive solar. After graduating from Goddard College with a BA in Philosophy, he married then spent time with his wife traveling the United States, living in New Mexico, Boston, and eventually moving to Maine. He reports local… Read more

Becca Austin - Solar Design Specialist

Becca Austin

Born and raised in East Millinocket, Becca is a native Mainer with a biology degree from Bowdoin College and a passion for the outdoors. After graduating from Bowdoin, she became Assistant Director for the Bowdoin College Outing Club leading trips, teaching students to become outdoor trip leaders and much more. After 8 years at Bowdoin,… Read more

Christine Puopolo - Graphic Designer

Christine Puopolo

A native of Georgetown, Massachusetts, Christine spent much of her life outdoors, resulting in her love for rock climbing, surfing, hiking and running. While studying Graphic Design at Roger Williams University, Christine developed her interests in travel and anthropology by studying abroad in Italy and traveling through Europe. In addition, she pursued her love for… Read more

Chris Blaisdell - Master Plumber

Chris Blaisdell

A licensed Master Plumber since 1985, Chris Blaisdell has been a core part of our solar hot water installation team since joining us in 2006. Prior to ReVision, Chris has extensive experience in both residential and commercial plumbing & heating as well as the experience of having owned a contracting business for the previous 10… Read more

Exeter Staff


Cal Truman

Cal is a solar installer and apprentice electrician, joining us in 2014 after having studied solar technology at Solar Energy International in Colorado. She holds a BA from Oberlin College that she earned in 2007. You’ll find her working hard on our solar PV crew throughout New Hampshire and the north shore of Massachusetts. A… Read more

Amy Farnham - Solar Design Specialist

Amy Farnham

As a native of Exeter, Amy made her way back here after years of exploring the mountains, landscapes, coastlines and cultures of California, Oregon, Boston, and New York. Through skiing, hiking, and camping, she enjoys sharing the natural beauty of New England with her husband and two young boys. Before coming to ReVision, Amy managed… Read more

Ethan Sprauge - PV Installer NH

Ethan Sprague

Before joining the ReVision team in 2014, Ethan was raised in Beekman, NY and attended Wentworth Institute of Techonology in Boston where he received a degree in Mechanical Engineering Technology. He knew from a young age that he wanted to be an engineer and that passion has taken him many places. He spent time working… Read more


Alex Greenhalgh

Originally from the Bangor, Maine area, Alex moved down to New Hampshire to join our growing solar hot water installation team. He brings with him several years of trades experience, including carpentry and commercial painting work for sites such as Jackson Laboratory and College of the Atlantic. Since joining us in 2011, he has grown… Read more

Concord Staff

Elijah Garrison - Solar Design Specialist

Elijah Garrison

For Elijah Garrison, it’s about matching people with technology. Elijah joined our team at ReVision Energy in 2015 as a Solar Design Specialist with a background in Building Science that allow him to educate customers about sustainability and renewable energy. He is also focused on business development and marketing as we look to grow the Concord branch. Elijah… Read more


Craig Cadieux

Craig joined ReVision in 2014 after working with Plymouth Area Renewable Energy Initiative (PAREI) for more than 5 years as their Energy Solutions Advisor providing their members with sound advice on ways to reduce energy consumption and produce their own. Prior to this position Craig had a successful career in Facilities Management. He’s a certified… Read more


Jack Ruderman

Jack Ruderman joins ReVision Energy to lead our Community Solar Initiatives, an ambitious effort to solarize municipalities, nonprofits, and schools throughout the Granite State, as well as organize the development of community solar farms. He previously served as Director of the Sustainable Energy Division of the New Hampshire Public Utilities Commission, where he was responsible… Read more

Ian Pahl - Solar Leads Specialist - Concord, NH

Ian Pahl

Hailing from the flatlands of Ohio, Ian grew up on a horse farm, and learned the fundamentals of creating less with more by combining a hay bale slinging, horse training lifestyle, while also being a part of his parents business whilst starting an independent insurance agency in his local town of 847 people. Ian studied… Read more