GREEN TURBINE. Green Turbine is a small (slightly larger than a football) steam-driven turbo generator that converts (waste) heat into electricity. The energy not converted to electricity is available for heating or cooling. Green Turbine-powered heaters enable any homeowner or small business to produce 100% of their heating and hot water needs at a huge savings while generating up to 80% of their electricity needs, free of charge. It will also reduce their CO2 emissions by 50%.