Stausee Mapragg
Encyclopedia
Stausee Mapragg is located at Pfäfers
Pfäfers
Pfäfers is a municipality in the Wahlkreis of Sarganserland in the canton of St. Gallen in Switzerland. The villages Pfäfers, St. Margrethenberg, Vadura, Valens, Vasön and Vättis belong to the municipality.-History:...

 in the Canton of St. Gallen
Canton of St. Gallen
The Canton of St. Gallen is a canton of Switzerland. St. Gallen is located in the north east of Switzerland. It covers an area of 2,026 km², and has a population of . , the population included 97,461 foreigners, or about 20.9% of the total population. The capital is St. Gallen. Spelling...

, Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

. Its surface area is 26 ha
1 E5 m²
To help compare sizes of different geographic regions, areas between 10 hectares and 100 hectares are listed below.* Areas smaller than 0.1 km2* 0.1 km2 is equal to:**1 E+5 m² or 100,000 m2...

. The reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 and Gigerwaldsee
Gigerwaldsee
Gigerwaldsee is a lake in the municipality of Pfäfers, in the Canton of St. Gallen, Switzerland. The reservoir has a volume of 35.6 million m³ and a surface area of 0.71 km².The arch dam Gigerwald was completed in 1976. It has a height of 147 m....

 are operated by Kraftwerke Sarganserwald (NOK group) for pumped-storage hydroelectricity
Pumped-storage hydroelectricity
Pumped-storage hydroelectricity is a type of hydroelectric power generation used by some power plants for load balancing. The method stores energy in the form of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost off-peak electric power is used to run the pumps...

.

External links

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