Pinet (power station)

Pinet
A river dam
Pinet barrage on the Tarn.
Country France
Location St Victor et Melvieu, Aveyron
Coordinates 44°04′13″N 2°48′17″E / 44.0702°N 2.8046°E / 44.0702; 2.8046Coordinates: 44°04′13″N 2°48′17″E / 44.0702°N 2.8046°E / 44.0702; 2.8046
Purpose Hydroelectric
Construction began 1929
Opening date 1932 (restored 1988-90)
Dam and spillways
Height 41 m (135 ft)
Length 175 m (574 ft)
Reservoir
Total capacity 4.4 million m³
Surface area 1.09 km2 (0.42 sq mi)
Normal elevation 320 m (1,050 ft)
Power Station
Operator(s) EDF
Type Run-of-the-river
Hydraulic head 36.4 m (119 ft)
Turbines 5 x Francis turbine
Installed capacity 42.5 MW (57,000 hp)
Annual generation 104 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. ↑
  3. ↑ Hydroweb: Pinet Archived 2012-02-16 at the Wayback Machine. in French, accessed 2012-09-27
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