Jim Gruber has been involved in energy conservation consulting and passive solar home design for many years at TEA. As a civil engineer, he has worked as an energy and environmental consultant for home builders, and state and federal agencies, both nationally and internationally. His passive solar energy home in Alstead has been heated with two cords of wood per year for the last 40 years. He is a professor emeritus in Environmental Studies at Antioch University New England and is enjoying a busy retirement with his wife, Patience Stoddard.
Daniel Lewis, PE, received a Masters in Mechanical Engineering from UMass and joined TEA in 1978, where he was head of Consulting Services. Dan and his wife Leslie live in Lost Alstead and installed a 8kW solar PV system in 2010.
Dr. Joseph Kohler taught Chemical Engineering at Worcester Polytechnic Institute prior to joining Total Environmental Action (TEA) in Harrisville, NH in 1977 as a Research Engineer. Joe and his wife Mona Anderson built a super-insulated “net zero” stone house in 1979.
Joe and Dan developed a mainframe-based computer model to simulate the hourly energy performance of passive solar houses. They later founded Kohler and Lewis, a mechanical engineering firm that specialized in designing energy efficient HVAC systems. For their research in the solar field, Joe and Dan were designated “Solar Pioneers” by the International Solar Energy Society (ISES) in 2021.