Don Foster is now a certified Renewable Energy Professional (REP) with the American Association of Energy Engineers. This certification recognizes the expertise of professionals involved in the design of renewable energy technologies, including geothermal systems, PV solar systems, solar thermal systems, and gas fired electrical generating systems. Farris Engineering is ready to provide owners with system designs that will decrease their utility consumption and carbon emissions for years to come. Don is a mechanical engineer and the Omaha office manager with over 30 years of experience.