Cerrón Grande Dam
The Cerrón Grande Hydroelectric Dam (Spanish: Central Hidroeléctrica Cerrón Grande) spans the Lempa River 78 km (48 mi) north of San Salvador in the municipalities of Potonico, (Chalatenango) and Jutiapa (Cabañas) in El Salvador.
| Cerrón Grande Hydroelectric Dam | |
|---|---|
| Official name | Central Hidroeléctrica Cerrón Grande |
| Location | Chalatenango (El Salvador) |
| Coordinates | 13°56′24.3″N 88°54′01.3″W |
| Opening date | 1976 |
| Operator(s) | CEL |
| Dam and spillways | |
| Impounds | Lempa River |
| Height | 90 m |
| Length | 800 m |
| Reservoir | |
| Creates | Embalse Cerrón Grande |
| Total capacity | 2,180 million m³ |
| Surface area | 135 km² |
Ramsar Wetland | |
| Official name | Embalse Cerrón Grande |
| Designated | 22 November 2005 |
| Reference no. | 1592 |
The concrete gravity dam has a height of 90 m (300 ft) and a length of 800 m (2,600 ft). The dam's reservoir has a surface area of 135 km2 (52 sq mi) and a capacity of 2,180,000 cubic metres (77,000,000 cu ft).
The hydroelectric power plant was fitted with 2 x 67.5 MWe Francis turbines with a total capacity of 135 Mwe. Major maintenance work carried out between 2003 and 2007 included replacing the turbines with 2 x 85 MWe units with a total capacity of 170 MWe, which generate 488 GWh per year.
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