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Zervreila storage power stations

The water from various valleys is collected in the Zervreila reservoir above Vals near the Rheinwaldhorn, and used to generate electricity in three stages and in three stations. The annual production is sufficient to supply some 110,000 households with electricity. Thanks to the reservoir, 55% of the electricity can be generated during the high-demand winter months.

Facts & figures

Plant type:

Storage power plant

Location:

Safien, Rothenbrunnen, Realta, Switzerland

Number of turbines:

Safien: 2 Francis turbines / Rothenbrunnen: 3 twin Pelton turbines / Realta: 2 Pelton turbines

Capacity:

266 MW

Shareholding:

21.6 %

Commissioning:

1958

Average annual production:

550 GWh

Guided tours:

Yes

Status:

In service