Hyman  is currently president of Goss Engineering, Inc, a consulting firm he helped found some 17 years ago, which provides district energy (central plants, thermal storage, cogeneration, distribution systems), and laboratory/building HVAC planning, design, and commissioning services. As a registered professional engineer in 7 states, He is the author of Sustainable Thermal Storage Systems, which is being published by McGraw-Hill in August, 2011 and co-author of Sustainable On-Site CHP Systems, published by McGraw Hill. He is the vice chair of ASHRAE’s thermal storage technical committee and is a member of the District Energy and Cogeneration technical committees.