Arzkarsee
Arzkarsee | |||||
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The Arzkarsee from the north, the dam on the left | |||||
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Coordinates | 46 ° 33 '1 " N , 10 ° 53' 25" E | ||||
Data on the structure | |||||
Lock type: | Gravity dam | ||||
Construction time: | 1965-1966 | ||||
Height of the barrier structure : | 85 m | ||||
Building volume: | 610,000 m³ | ||||
Crown length: | 464.8 m | ||||
Power plant output: | 42 MW | ||||
Operator: | Alperia Greenpower GmbH | ||||
Data on the reservoir | |||||
Altitude (at congestion destination ) | 2250 m | ||||
Water surface | 30 ha | ||||
Storage space | 12.6 million m³ | ||||
Particularities: |
Pressure tunnel to the power plant 358 m below |
The Arzkarsee (also Arzkar-Stausee , sometimes also Arzker-Stausee , Italian Lago Quaira ) is a reservoir above the Ulten Valley northwest of St. Nikolaus in South Tyrol . It lies at an altitude of 2250 m and is thus the highest reservoir in the Ulten Valley area after the Grünsee .
Its gravity dam is 85 meters high and has a crown length of 464.8 meters. Their total volume is 610,000 m³. The 3257 m high peak of the Hasenöhrl rises about 2.5 kilometers west of the lake . Its glacier area with the Hasenöhrlferner and Kuppelwiesferner supplies the water for the lake. Its water surface covers about 30 hectares with a storage capacity of 12.6 million cubic meters.
The Arzkarsee was built from 1965 to 1966 as the last of the reservoirs for the hydropower plants in Ultental . A pressure tunnel leads from here to the Kuppelwieser Alm power station, 358 meters below . 13 cubic meters of water per second generate an output of 42 megawatts in the turbine there.
The system also works as a pumped storage plant, in which water can be pumped up from the Weißbrunnsee into the Arzkarsee with a high-performance pump during the low- consumption period , up to 8.5 m³ / s.
The dam of the Arzkarsee can be crossed on the top of the wall.
literature
- Christoph Gufler: The lost legacy: the power plant and reservoir construction in Ulten and Lana , Verlag-Anst. Athesia Bozen, 2007, ISBN 978-88-8266-096-3
- SE Hydropower GmbH: hydropower plants Ultental , folder, ( digitized )
Web links
- Arzkarsee on ultental-valdultimo.com
- Under power - reservoirs and power plants in Ultental (video)
Individual evidence
- ↑ Measured with Geobrowser South Tyrol
- ↑ Hikr.org