Los Reyunos Dam

Dam in San Rafael, Mendoza Province
34°36′8.45″S 68°38′30.06″W / 34.6023472°S 68.6416833°W / -34.6023472; -68.6416833PurposePower, water supplyStatusOperationalOpening date1983; 41 years ago (1983)Owner(s)Hirdroeléctrica Diamante (HIDISA)/Hidroeléctrica de los Nihuiles (HINISA)Dam and spillwaysType of damEmbankmentImpoundsDiamante RiverHeight136 m (446 ft)Length295 m (968 ft)ReservoirTotal capacity258,570,000 m3 (209,630 acre⋅ft)Active capacity137,280,000 m3 (111,290 acre⋅ft)Surface area7.34 km2 (2.83 sq mi)Commission date1983TypePumped-storageTurbines2 x 112 MW reversible Francis-typeInstalled capacity224 MW

The Los Reyunos Dam is an embankment dam on the Diamante River, in central Mendoza Province, Argentina, some twenty-two miles (thirty-five kilometers) from the city of San Rafael. The dam, built of stone and compacted clay to minimize execution and cost, is 440 feet (130 meters) high and contains a reservoir covering an area of 1,828 acres (7.40 km2).[1]

The dam is used to generate hydroelectricity. This is done with a pumped-storage power station located below the level of the reservoir. About one mile (two kilometer) downstream is a smaller, compensation dam, which forms the lower reservoir, called El Tigre. During the hours of decreased power demand, water is pumped from the reservoir of El Tigre back into Los Reyunos to stabilize the water level.

The reservoir is employed in raising Salmonidae and silverside, allowing for sport fishing. Los Reyunos Fishing and Nautical Club, along with private summer residences and a hotel, lies on the western shore of the reservoir and serves as a base for activities in the lake (such as windsurf, canoeing) and in the surrounding mountains (such as hiking).

References

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  1. ^ "Los Reyunos PS Hydroelectric Power Plant". Global Energy Observatory. Retrieved 19 May 2014.
  • (in Spanish) Los Reyunos at ValleGrande.com.ar.
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