The plants, which together will have an installed capacity of 1740MW, are being built on the Santa Cruz river in the province of Santa Cruz, in the south of the country.

Condor Cliff will have a capacity of 1140MW and La Barancosa will be 600MW. The river has been described with a reference flow rate of approximately 700m3/sec.

They were tendered as a combined scheme to finance, build, operate, maintain and commercially exploit the hydro power resources. The bids were submitted by two consortia in April 2008. Financial terms of the opened bids were not immediately available.

The investment requirement for the combined scheme has previously been cited as approximately US$1B.

Impsa’s partners in the winning consortium are Corporacion America and Camargo Correa.

The other consortium comprised Electroingeniería, IECSA and José Cartellone Construcciones Civiles.

Six consortia had originally expressed interest in the scheme, including Isolux Corsán and Andrade Gutierrez; Techint, Grupo Roggio, Esuco and Supercemento; Hidroeléctrica Futaleufú, Odebrecht and Aluar Aluminio Argentino; and Panedille Argentina.