The Cerrón Grande Hydroelectric Dam (Spanish: Central Hidroeléctrica Cerrón Grande) spans the Lempa River 78 km north of San Salvador in the municipalities of Potonico, (Chalatenango) and Jutiapa (Cabañas) in El Salvador.The concrete gravity dam has a height of 90 m and a length of 800 m. The dam's reservoir has a surface area of 135 km² and a capacity of 2,180 million m³.The hydroelectric power plant was fitted with 2 x 67.5 MWe Francis turbines with a total capacity of 135 Mwe.
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