Evaluation of trashrack replacement design for malalo intake of singkarak hydro power plant in west Sumatera

Abstract Singkarak hydro power plant (SHPP) with the capacity of 175 MW provide essential supply to Sumatera Interconnection System thus reliable and efficient operation component must be maintained. With damaged experienced by trash rack during Padang earthquake, was disturbed replacement need executed. This study evaluate modification in terms head loss, potential energy revenue losses. simple evaluation finds that design gives lower loss which translated The losses also increase exponentially blockage. result amplify importance cleaning a plant.