Ottensheim-Wilhering power plant

Ottensheim-Wilhering power plant
	Danube power plant Ottensheim-Wilhering
	location
Coordinates	48 ° 19 '1 " N , 14 ° 9' 2" E Coordinates: 48 ° 19 '1 " N , 14 ° 9' 2" E
country	Austria / Upper Austria
place	Ottensheim / Wilhering
Waters	Danube
Kilometers of water	km 2146.73
Height upstream	264.2 m above sea level A.
	power plant
owner	VERBUND-Austrian Hydro Power AG
operator	VERBUND-Austrian Hydro Power AG
construction time	1970-1974
	technology
Bottleneck performance	179 megawatts
Average ; height of fall	10.5 m
Expansion flow	2,250 m³ / s
Standard work capacity	1,135 million kWh / year
Turbines	9 Kaplan bulb turbines
Generators	9 synchronous generators
	Others
was standing	August 2007

The Ottensheim-Wilhering power plant is a run-of- river power plant in the Danube between the two Upper Austrian municipalities of Ottensheim and Wilhering . This Austrian Danube power plant was built between 1970 and 1974.

location

Since the boundaries between Ottensheim and Wilhering were established at a time when the Danube was not yet regulated , the Ottensheim-Wilhering power plant is actually located almost exclusively in the Ottensheim municipality, as the entire width of the Danube and part of it until just behind the power plant south of the Danube ("Marktau") belong to Ottensheim. Only part of the substation , south of the Danube, is located in Wilheringen's municipal area.

technical description

The facility has five weir fields and two lock chambers (each 230 × 24 m). The reservoir length of the river is 16 km and the reservoir target is at an altitude of 264.2 m at river kilometers 2,146.73.

Nine machine sets in the machine house , which was built on the right, southern bank of the Danube, supply electricity to the public grid . The expansion flow is 2,250 m³ / s and the standard energy capacity is 1,135 million kWh annually.

Each of these machine sets consists of a Kaplan bulb turbine , each with a directly coupled three-phase generator . The Kaplan bulb turbines 1–3 each have a nominal output of 20,200 kW and a nominal flow rate of 238 m³ / s each, the turbines 4–9 have a nominal output of 20,400 kW each and a nominal flow rate of 240 m³ / s. The impeller diameter of 5.6 m and the nominal speed of 100 / min are identical for all nine turbines. The raw drop height is 10.5 m.

ecology

The Ottensheim-Wilhering power plant was the first power plant on the Austrian Danube to install Kaplan turbines with a horizontal shaft. This construction method enables a lower power station building that fits better into the surrounding landscape.

The storage space in the Eferdinger basin is used as a swimming and leisure paradise. In the calm arm of the Danube, an international regatta course was built, on which international rowing competitions take place regularly.

Flood

The weir operating regulations of the power plant stipulate that in the event of flooding, the Danube is diverted into the Eferdinger Basin. During the flood in June 2013 , the water level was 264.90 m above sea level. A. (left bank) or 264.75 m above sea level. A. (right bank) water into the Eferdinger basin. This resulted in widespread flooding and damage to homes. As a result of these events, the aim is to change the weir operating regulations and to redesign the flood protection in the Eferding Basin .

literature

Gerhard A. Stadler, Manfred Wehdorn , Monika Keplinger, Valentin E. Wille: Architektur im Verbund (= series of research in Verbund 100). Springer Verlag, Vienna et al. 2007, ISBN 978-3-211-75795-6 .