David Hatherton has been a leader in the domestic and international geothermal, renewable, and energy efficiency industries for 25 years. Companies that Mr. Hatherton has co-founded have installed over 250,000 systems, accounting for approximately US$2.5 billion in retail sales. David was the cofounder of companies including EarthSystems/WaterFurnace Canada, WaterFurnace International (Fort Wayne, Indiana), and NextEnergy Inc. Among his many contributions to industry associations, Mr. Hatherton was the founding President of the Canadian Earth Energy Association and initiated the Ontario Hydro GSHP incentive program with 7,000+ installations. During the administration of President Clinton, Mr. Hatherton was the key industry representative providing successful congressional testimony in the launch of the US$100 million Department of Energy (DOE) – Geothermal Heat Pump Consortium’s National Earth Comfort Program, part of the Clinton/Gore Climate Change Action Plan.