Wisenta pumped storage plant
| Upper basin (Wisenta dam) | |||||||
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| Coordinates | 50 ° 34 '34 " N , 11 ° 43' 2" E | ||||||
| Data on the structure | |||||||
| Construction time: | 1933-1934 | ||||||
| Height above valley floor: | 12.5 m | ||||||
| Height above foundation level : | 16.1 m | ||||||
| Height of the structure crown: | 390.5 m | ||||||
| Building volume: | 10 300 m³ | ||||||
| Crown length: | 148 m | ||||||
| Crown width: | 4 m | ||||||
| Data on the reservoir | |||||||
| Altitude (at congestion destination ) | 389 m | ||||||
| Water surface | 28 ha | ||||||
| Reservoir length | 2.4 km | ||||||
| Storage space | 1.04 million m³ | ||||||
| Total storage space : | 1.04 million m³ | ||||||
| Catchment area | 170 km² | ||||||
| Lower basin (Walsburg dam) | |||
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| Coordinates | 50 ° 34 ′ 20 " N , 11 ° 42 ′ 33" E. | ||
| Data on the structure | |||
| Construction time: | 1938-1939 | ||
| Height above foundation level : | 15.5 m | ||
| Building volume: | 16 000 m³ | ||
| Crown length: | 118 m | ||
| Crown width: | 4 m | ||
| Base width: | 12.5 m | ||
| Data on the reservoir | |||
| Water surface | 46.49 ha | ||
| Reservoir length | 5.8 km | ||
| Reservoir width | 90 m | ||
| Storage space | 2.54 million m³ | ||
| Total storage space : | 2.54 million m³ | ||
| Design flood : | 120 m³ / s | ||
The Wisenta pumped storage power plant consists of the Wisenta dam on the Wisenta as the upper basin and the Walsburg reservoir on the Saale as the lower basin. The plant is located near Ziegenrück and Schleiz in Thuringia and is operated by Vattenfall Europe Generation.
Upper and lower basins
The barrier structure of the upper basin is a straight gravity dam made of cast concrete . It was built in just four months in 1933. It was dammed for the first time on December 2, 1933. Between 1954 and 1955 the wall was raised by 3 m to 16.1 m and also reinforced on the air side. It is based on slate . A siphon was built on each side next to the raid as flood relief .
The Walsburg dam, a dammed section of the Saale below the Bleilochtalsperre and the Burgkhammer dam and above the Hohenwartetalsperre, was used as the lower basin from 1939 . The barrier structure is also a gravity dam.
All of these dams are part of the Saale Cascade , which was built between 1926 and 1945 with a gradient of around 200 m over 65 km in five barrages on the upper Saale, even if the Wisenta dam is not located directly on the Saale , but on its tributary Wisenta.
Hydroelectric power plant
The four machine sets in Wisenta ( Francis / Kaplan ) together have a total nominal output of 3.76 megawatts (MW), which is comparatively little for a pumped storage power plant. The barrier at Untersee (Walsburg) has two turbines with 1.2 and 1.3 MW, respectively, a total of 2.5 MW, the barrier at Obersee (Wisenta) has two turbines with 0.6 and 1.2 MW each.
The pumped storage power plant was in its commissioning, the first fully automatic pump storage power plant in Europe. On August 1, 1992, however, the pumps were shut down and the Wisenta power plant has only been used as a storage power plant or run-of-river power plant since then .
precursor
Before that there was the "stone box weir", which was 60 m above the river bed and dammed the Wisenta into a natural upper basin. The foundation stone for the Wisenta pumped storage plant was laid in April 1919. The plans go back to Rudolf Straubel . In December 1920, the power plant supplied electricity to the Zeiss works for the first time via a direct line .
literature
- Dams in Thuringia . Thuringian dam administration, author college, 1993
See also
Web links
- Hydropower in Germany - general information
- Vattenfall's power plants - Filterable list and map