Pinet (power station)

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Pinet
A river dam
Pinet barrage on the Tarn.
CountryFrance
LocationSt Victor et Melvieu, Aveyron
PurposeHydroelectric
Construction began1929
Opening date1932 (restored 1988-90)
Dam and spillways
Height41 m (135 ft)
Length175 m (574 ft)
Reservoir
Total capacity4.4 million m³
Surface area1.09 km2 (0.42 sq mi)
Normal elevation320 m (1,050 ft)
Power Station
Operator(s)EDF
TypeRun-of-the-river
Hydraulic head36.4 m (119 ft)
Turbines5 x Francis turbine
Installed capacity42.5 MW (57,000 hp)
Annual generation104 GWh (370 TJ)

Pinet is a barrage and hydroelectric power station on the River Tarn in Saint-Victor-et-Melvieu in Aveyron, southern France.

The barrage was built in 1932, and the station has five Francis turbines generating 42.5MW. The dam is 175 metres (574 ft) long and 41 metres (135 ft) high.[1]

Description

The dam

The dam constructed in 1929 was regulated by 18 groups of vannes secteur (sluices). These were replaced by 3 vannes-clapet (rising barriers), 6.2 by 40 metres (20 ft × 131 ft) in dimension. These gave the dam capacity to cope with crues (floods) of up to 4 400 m3/s.[2]

The lake

The barrage raises the level of the Tarn by 40 m and the lake formed, the Lac de Pinet, is at an altitude of 320 m and has a surface area is 1.09 km². It lies in the communes of Saint-Rome-de-Tarn, Viala-du-Tarn and Saint-Victor-et-Melvieu.

The turbine hall

The turbine hall is 500 metres (1,600 ft) downstream from the barrage, it contains five Francis turbines which generate 42.5 megawatts (57,000 hp).[3]

See also

References

  1. ^ Hydrelect info: Pinet in French, accessed 2012-09-27
  2. ^ [1]
  3. ^ Hydroweb: Pinet in French, accessed 2012-09-27

External links