Zillergründl Dam
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The Zillergründl Dam is an
Design and operation
At an elevation of 1,850.7 m (6,072 ft) above sea level, the Zillergründl is a 186 m (610 ft) tall and 502 m (1,647 ft) long variable-radius arch dam with a structural volume of 1,373,000 m3 (1,795,816 cu yd). The dam is 6 m (20 ft) wide at its crest and 36 m (118 ft) at its base. Its reservoir has a capacity of 89,500,000 m3 (72,559 acre⋅ft), of which 88,800,000 m3 (71,991 acre⋅ft) is active (or "useful") capacity. At normal levels, the reservoir has a catchment area of 67 km2 (26 sq mi). The reservoir operates at elevations from 1,850 m (6,070 ft) to 1,740 m (5,709 ft), which is the draw-down level.[1][2]
Water released from the reservoir reaches the Häusling Power Plant 10 km (6 mi) downstream. The power plant is located at an elevation of 1,060 m (3,478 ft) and contains two 180 MW Francis turbine-generators. It is afforded 744 m (2,441 ft) of hydraulic head given the difference in elevations.[4] Using its pumped-storage capability, the power-station receives water from the Stillupp Reservoir 8 km (5 mi) to the west in an adjacent valley at 47°07′17″N 11°51′58″E / 47.12139°N 11.86611°E and pumps it up to the Zillergründl Reservoir. The pumping and replenishment of the reservoir occur at night, during low energy demand periods. The process is repeated; electricity is generated during high-demand periods and pumping occurs during low-demand periods when electricity is cheaper.[3][5][6]
See also
- List of tallest dams in the world
- List of power stations in Austria
References
- ^ a b "Zillergründl Dam Austria" (PDF). STRABAG. Retrieved 7 August 2011.[permanent dead link]
- ^ a b "Zillergründl". Austrian National Committee on Large Dams. Retrieved 7 August 2011.[permanent dead link]
- ^ a b Jacobs, S.; Blauhut, A.; Schöberl, P. (2009). "Long term deformation of Zillergründl rock foundation" (PDF). Long Term Behaviour of Dams. B (9). Graz University of Technology. Retrieved 7 August 2011.[permanent dead link]
- ^ "Hydraulic Machines for hydroelectric stations". ANDRITZ.
{{cite web}}: Missing or empty|url=(help) - ^ "HÄUSLING" (in German). ANDRITZ. Retrieved 7 August 2011.
- Verbund AG. Archived from the originalon 6 August 2011. Retrieved 7 August 2011.