Small Hydro Turbine Generator 500kW 1000rpm Grid Tie Stainless Steel Runner This 500kW small hydro turbine generator is designed for grid tie operation at heads from 40 m to 120 m. The stainless steel runner and precision governor keep the unit stable under variable flow. Key Features Grid tie ready with synchronizing control Water head range 40-120 m 1000rpm rated speed for compact generator Stainless steel runner and wear-resistant seal Automatic speed and voltage