Le Pouget (power station)
| Le Pouget | |
|---|---|
 | |
| Country | France |
| Location | Le Truel |
| Coordinates | 44°3′34.92″N 2°46′12.0″E / 44.0597000°N 2.770000°E |
| Operator(s) | EDF |
| Upper reservoir | |
| Creates | Lac de Villefranche-de-Panat, Lac de Saint-Amans. Connected to Lac de Pareloup. |
| Lower reservoir | |
| Creates | River Tarn |
| Power Station | |
| Hydraulic head | 461.2 m |
| Installed capacity | 372.5 MW |
Le Pouget is a hydroelectric power station located at
In addition to its 440 MW generating capacity it houses a small pumping station that can return 6.6 m³/s of water from the Tarn to its header reservoir.
Geography
The catchment of this system is on the Lévézou plateau- which is at the western end of the Grandes Causses. The plateau lies between 700 m and 900 m and consist of
Description
The catchment area of Le Pouget is extensive. The Alrance valley was dammed at Villefranche-de-Panat, creating the 197 hectare Lac de Villefranche-de-Panat. The dam at Villefranche is 17.10 m high and holds back 8.66 hm3 of usable water. This passes by a 5.3 km tunnel to the small 11 ha Lac de Saint-Amans reservoir, and then by steel penstocks the last 1.2 km to Le Pouget.
To the north is the
Water from Le Pouget exits into the Tarn both above and below the Barrage du Truel.[2]
Turbines
In 1952, the station was equipped with 3 PELTON type turbines. They take 11 m3/s of water and together generate 127.5 MW. They are denominated G1, G2, G3. In 1983 two new generators were installed. These were G4, a 275 MW FRANCIS type turbine, the most powerful of its type used in France; and the unique G5 41.5 MW reversible FRANCIS type turbine. Reversible, the latter could also be used to pump water 461 m up to the lac de Saint-Amans.[2]
G4 uses a turbine that develops 286 MW of power, using 74 m3/s of water. At the time of its installation it was the most powerful gravity fed turbine in Europe and in 2012 is still the most powerful in France. This drives an alternator running at 333 revolutions / minute. It is 91% efficient delivering 275 MW (MVA) of electrical energy to the grid at 15.5 kV – that is nominally 10,245 kA.[2]
See also
References
Notes
- ^ Energie Midi-Pyrénées (1994)
- ^ a b c Hydroweb Pouget Archived 2011-09-10 at the Wayback Machine, French, accessed 2012-09-26
Bibliography
- EDF Production Transport- Energie Midi-Pyrénées (1994). "Présentation de l aménagement hydroélectrique du Pouget et du barrage de Pareloup (Aveyron)". Hydroécol. Appl. (1994) (in French). 6. Toulouse: EDF: 1–7. . Retrieved November 14, 2021.
External links
- Hydroweb Pouget in French
