Solar Thermal or Water Heater Efficiency?

Max Twogood for Zondits, August 3, 2015. Image credit: Avalanche Energy [Somerville, MA] Avalanche Energy is a small start-up with a new take on a century-old technology. While they are based just outside of the snowy city of Boston, Avalanche has nothing to do with this frosty precipitation. Avalanche Energy has invented a novel solar … Read more