The country's largest dam, Jatiluhur, has several purposes, including the provision of hydroelectric power generation, water supply, flood control, irrigation and aquaculture. The earth-fill dam is  high and withholds a reservoir of . It helps to supply water to Jakarta and to irrigate  of rice fields and has an installed capacity of 186.5 MW which feeds into the Java grid managed by the State Electricity Company (''Perusahaan Listrik Negara'', PLN).