Salto Osório Hydroelectric Power Plant
The Salto Osório Hydroelectric Power Plant is a dam and hydroelectric power plant on the Iguazu River near Osório in Paraná, Brazil. It is the second dam upstream of the Iguazu Falls and was completed in 1979. The power station has a 1,078 MW capacity and is supplied with water by a rock-fill embankment dam. It is owned and operated by Tractebel Energia. Salto Osório Dam. The Salto Osório Dam is high, long and is of rock-fill embankment type. The dam has two spillways containing 9 wide and wide radial gates and has  a maximum capacity of . Each spillway is on the main structure and the northern spillway contains 4 floodgates with 5 located next to the power station. The reservoir formed behind the dam contains of live storage with a surface area of and a catchment area of . The average flow of the river through the dam is and the normal operating level of the reservoir is above sea level. Power plant. The power plant at the southern end of the dam contains six hydroelectric generators powered by Francis turbines. Four of the turbines were manufactured by Mitsubishi and the other two  turbines were manufactured by Hitachi. Each turbine has a rated discharge of and is fed by a diameter steel penstock which provides a gross hydraulic head of . The first generator was commissioned on October 17, 1975, with another later that year, two in 1976, another in 1980 and the final June 21, 1981. Tractebel Energia, the owners of the power plant began a refurbishment of the turbines in 2005.