Called HidroAysén, the project was a joint venture between Endesa Chile a subsidiary of the international energy conglomerate Enel, and Colbún S.A. a subsidiary of Minera Valparaíso. The series of hydro-electric dams were proposed along both the Baker and Pascua rivers, two of Chile's mightiest rivers.
HidroAysén, a joint venture between Endesa Chile and Colbún S.A., proposed a series of hydroelectric dams on the Baker and Pascua rivers, two of Chile's most important rivers.