Grimselsee

The Grimselsee or Lake Grimsel is an artificial lake near the Grimsel Pass in the Canton of Bern, Switzerland. With a volume of 95 mio m³ (20.9 billion imperial gallons, 20.1 billion US gallons), it is larger than other hydroelectric reservoirs in the Aare headwaters region: Oberaarsee, Räterichsbodensee and Gelmersee. The dam was completed in 1932 and is operated by Kraftwerke Oberhasli AG (KWO). It is located in the municipality of Guttannen.

Lake Grimsel and Räterichsbodensee in the background.
Grimselsee
Lake Grimsel
Grimselsee
Lake Grimsel
Grimselsee
Lake Grimsel
Grimselsee
Lake Grimsel
map
LocationGuttannen, Canton of Bern
Coordinates46°34′10.52″N 8°19′38.66″E
Typeartificial lake, hydroelectric reservoir
Primary inflowsOberaarbach, Treibtenbach
Primary outflowsAare
Catchment area74.4 km2 (28.7 sq mi)
Basin countriesSwitzerland
Surface area2.63 km2 (1.02 sq mi)
Water volume95 million cubic metres (77,000 acre⋅ft)
Surface elevation1,908 m (6,260 ft)
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