Três Irmãos Dam

The Três Irmãos Dam is an embankment dam with gravity sections on the Tietê River in Pereira Barreto of São Paulo state in Brazil. The dam is about 28 kilometres (17 mi) upstream of the river's confluence with the Paraná River. It supports the largest hydroelectric power station on the river with an installed capacity of 807.5 megawatts (1,082,900 hp). The dam was completed in 1991 and the five 161.5 megawatts (216,600 hp) Francis turbine-generators were commissioned between November 1993 and January 1999. It is owned and operated by Companhia Energética de São Paulo (CESP). The dam also provides for navigation with two ship locks.[1][2]

Três Irmãos Dam
Location of Três Irmãos Dam in Brazil
Official nameBarragem Três Irmãos
CountryBrazil
LocationPereira Barreto, São Paulo
Coordinates20°39′56.29″S 51°18′5.19″W
PurposePower, navigation
StatusOperational
Opening date1991 (1991)
Dam and spillways
Type of damEmbankment with gravity sections
ImpoundsTietê River
Height82 m (269 ft)
Length3,640 m (11,940 ft)
Reservoir
CreatesTrês Irmãos Reservoir
Total capacity13,373,000,000 m3 (10,842,000 acre⋅ft)
Active capacity3,450,000,000 m3 (2,800,000 acre⋅ft)
Inactive capacity9,923,000,000 m3 (8,045,000 acre⋅ft)
Catchment area699,000 km2 (270,000 sq mi)
Surface area785 km2 (303 sq mi)
Normal elevation328 m (1,076 ft)
Operator(s)Companhia Energética de São Paulo (CESP)
Commission date1993-1999
TypeConventional
Turbines5 x 161.5 MW (216,600 hp) Francis-type
Installed capacity807.5 MW (1,082,900 hp)

References

  1. "Hydroelectric Three Brothers" (in Portuguese). CESP. Retrieved 8 November 2014.
  2. "Characteristic Data - HPP 3 Brothers" (in Portuguese). CESP. Retrieved 8 November 2014.
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