Energy Impact Partners, a collaborative strategic investment firm that invests in companies optimizing energy consumption, led a $15m Series A round in Stone Mountain Technologies, a developer of high-efficiency heat pump technologies using natural refrigerants, with participation from Enbridge Gas, Beckett Thermal Solutions, and Southern California Gas Company. “EIP is proud to be leading the Series A Financing round for Stone Mountain Technologies. We believe that SMTI's innovative gas absorption heat pump is a game-changing technology for heating and hot water, providing low cost and high efficiency. We are extremely bullish on the upside potential for CEO Michael Garrabrant and his organization," Jim Laurito, EIP Operating Partner.