| Jurún Marinalá Dam | |
| Name Official: | Planta Hidroeléctrica Jurún Marinalá |
| Dam Crosses: | Michatoya River |
| Location: | Finca El Salto (Escuintla) |
| Opening: | 1970 |
| Res Capacity Total: | 112,000 m3 |
| Location Map: | Guatemala |
| Coordinates: | 14.3892°N -90.7106°W |
The Jurún Marinalá Dam (Spanish: Planta Hidroeléctrica Jurún Marinalá) is a reinforced concrete gravity dam and power plant spanning the Michatoya River in Escuintla, Guatemala. The project became operational in 1970.[1]
The dam's reservoir has a total capacity of 112,000 m3. The water is transported to the powerhouse through a 4.03 km long tunnel and a 2.44 km long pressure pipe. The plant has Pelton turbines, with a total installed capacity of 60 MW. The plant has a net level declination of 660 m, and a designed flow of 4 m/s per unit.
The plant's total power generation between 1970 and 2006 was 6674.91 GWh, which amounts to a mean annual power generation of 185 GWh.