VERBUND's Abwinden-Asten power plant is a run-of-river plant on the Danube, south of Abwinden near Linz in Upper Austria.
VERBUND's most powerful watercraft is deployed for the damming of weir field no. 5 of the Abwinden-Asten Danube power plant: the ‘DOKW2’ floating crane needs all its strength to stack the dam beams in front of the weir field. Only then can the actual inspection work begin.
As part of the LIFE+ Network Danube project, VERBUND constructed a near-natural bypass channel around the Abwinden-Asten power plant. This channel serves as a fish pass as well as a place of retreat and habitat for rare species along the Danube.
Owner: VERBUND Hydro Power GmbH
Operator: VERBUND Hydro Power GmbH
Commissioning: 1979
Type: Run-of-river power plant
Country: Austria
Region: Upper Austria
Waters: Danube
Output: 168 MW
Annual output: 1,039,561 MWh
Turbine: Kaplan
Connectivity: Fish bypass
The powerhouse is equipped with nine 39,000 kW bulb turbine sets. With an impeller diameter of 6 metres and four blades, the turbines are some of the biggest on the Danube.
The plant has three 135,000 kVA block transformers for raising the voltage from 7.75 kV to 235 kV.
The barriers for the weir system comprise six 24 metre-wide pressure segments with weir gates, which were installed in sections due to their size.
Abwinden-Asten was built between 1976 and 1979 with the financial participation of Energie AG Oberösterreich, Salzburg AG, KELAG and VKW in a low-profile design.
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As part of the LIFE+ Network Danube project, the Abwinden-Asten power plant was equipped with a modern fish pass. The near-natural bypass channel, which runs parallel to the Danube, offers additional places of retreat and habitat for rare fish, birds, amphibians and insects.
