Coordinating Board for Lake Toba Basin Ecosystem Conservation2016-04-192016-04-192007-08-082541_Indonesia_Lake_Toba_eng.pdfhttp://hdl.handle.net/10919/67046PT Indonesia Asahan Alumunium (INALUM) - an aluminum refining and power generation corporation - is a Japanese overseas investment in North Sumatra, Indonesia. The electric power is produced in Asahan Hydropower Plant using the water from Toba Lake. This supply of electric power is for use in aluminum industry and sale of electricity for public use (80% from the total production in North Sumatra).application/pdfen-USIn CopyrightSedimentationWater managementPayments for environmental servicesSurface waterHydropowerWaterWater useWater qualityLake tobaReport