The Miguillas Hydroelectric Project consists of two cascaded plants with machine houses located in Umapalca and Palillada, with installed powers of 85,75 MW and 118,60 MW, respectively.
The Umapalca system captures the waters of the Miguillas rivers in Carabuco, in addition to the flows turbinated in the current Carabuco plant, Calachaka Jahuira, Chaka Jahuira, and Chuca Loma, with independent intakes at each of them. In Calachaka Jahuira, there is a lateral reservoir with a capacity of 50.000 m³ that serves as an hourly regulation element to guarantee peak power for up to 4 hours.
The Palillada system takes water from the Umapalca plant through direct intake from the restitution canal, as well as from intakes on the Miguillas and Jalancha rivers.
For the storage of excess contributions during the rainy period, five gravity dams are planned, located in the natural lagoons of the basin.
Additionally, a reduced-scale model study has been carried out at the AIN Research Center, where various design elements have been modeled.
