Gletsch-Oberwald power plant
| Gletsch-Oberwald power plant | ||
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| location | ||
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| Coordinates | 670618 / 154984 | |
| country |
 Switzerland
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| place | Oberwald | |
| Waters | Rhone | |
| Height upstream | 1456 m above sea level M. | |
| power plant | ||
| owner | FMV | |
| Start of planning | 2009 | |
| construction time | 2015-2018 | |
| Start of operation | 2018 | |
| technology | ||
| Bottleneck performance | 14 megawatts | |
| Average height of fall |
280 m | |
| Expansion flow | 5.7 m³ / s | |
| Standard work capacity | 41 million kWh / year | |
| Turbines | 2 × Pelton turbines | |
| Others | ||
| Website | FMV | |
| was standing | 2020 | |
The power plant Gletsch-Oberwald is a Taken in 2018 in operating medium pressure - hydropower plant , in Obergoms , the waters of the Rhone between Gletsch and Oberwald processed.
history
After the introduction of the cost-oriented feed-in tariff (KEV) in 2009, smaller hydropower projects became economically interesting again, which is why the FMV , the former Forces Motrices Valaisannes, planned a power plant in Obergoms. After a seven-year approval phase, construction work began in May 2015 with the excavation of the access tunnel to the central cavern , which was excavated in autumn. Starting in October, the pressure tunnel to Gletsch was driven, which was completed after about six months. The construction site in Gletsch was only accessible through the pressure tunnel during the seven winter months because the road was closed in winter. There were an average of 40 employees on site who sometimes worked in three shifts.
technology
The central ⊙ of the power plant is located underground in Oberwald. It is located almost exactly under the tracks of the Furka mountain line steam train . The access ⊙ is below the main road 19 , which leads over the Furkapass. The water intake ⊙ is located at the entrance to Gletsch next to the main road.
Two six-jet Pelton turbines are installed in the headquarters, each with an output of 7.5 MW. The energy generated is transferred to the Oberwald substation via a 16 kV line laid in the ground.
If the outflow is low, as occurs in winter, only one turbine works; if the outflow falls below 200 l / s, the turbines have to be switched off completely because this amount is required for the residual water alone .
Web links
Individual evidence
- ↑ a b Radomír Novotný: Questions of acceptance of alpine hydropower. In: bulletin.ch. SEV, January 30, 2019, accessed on May 25, 2020 .
Map with all coordinates: