Governing system and OPU is one of the key control equipment of hydro power station, jointly it has the ability to control a hydropower unit by adjusting, closing and opening guide vanes and runner blades of hydro turbine and the guaranteeing the quality of electric power by maintaining the grid frequency. LH Energy can offer FGMO/RGMO based PLC/PID controlled governors with nitrogen accumulator and compressed air tank based OPU. All parts are fitted with Rexroth Bosch valves, Siemens Motor, Grundfos pumps to assure excellent performance.