Ed has worked in the GSHP industry since the early 1980s and has had the opportunity to design systems for many applications and in climates ranging from the Australian outback to the Siberian tundra, as well as across North America. He is the go-to geothermal design expert for engineering firms across North America, and as such developed and regularly teaches the Certified GeoExchange Design (CGD) course offered by the International Ground Source Heat Pump Association (IGSHPA).