The Aguacapa Hydroelectric Dam (Spanish: Planta Hidroeléctrica Aguacapa ) is a reinforced concrete

Reinforced concrete

Reinforced concrete is concrete in which reinforcement bars , reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867. The term Ferro Concrete refers only to concrete that is...

 gravity dam and power plant spanning the Aguacapa River

Aguacapa River

The Aguacapa River is a river in Guatemala. Its sources are located in the hills south-east of Guatemala City, at an altitude of 1850 m. From there it flows in a southerly direction through the department Guatemala and Santo Rosa and joins the Maria Linda River at , which flows into the Pacific...

 in Escuintla

Escuintla

Escuintla is a city in south central Guatemala. It is the capital of the Escuintla Department and the administrative seat of Escuintla Municipality....

, Guatemala

Guatemala

Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...

.

The dam's reservoir has a total capacity of 300,000 m³. The water is transported to the powerhouse through a 12.04 km long tunnel and a 3.65 km long pressure tube. The plant has 3 x 30 MW Pelton turbines, with a total installed capacity of 90 MW. The plant has a net level declination of 490.6 m, and a designed flow of 7.33 m³/sec per unit.

The plant's total output between 1981 and 2006 was 6600.96 GWh, which amounts to an average annual electricity generation of 264 GWh.