Ybbs-Persenbeug Run-of-River Power Plant

VERBUND's power plant at Ybbs-Persenbeug is a run-of-river plant situated on the Danube and in the municipality of Ybbs and Persenbeug in Lower Austria.

Man in the kitchen

305.555 households

supplies the Ybbs-Persenbeug power plant

Environmentally friendly

1.020.688 avoided
tonnes of CO2*


News: Project "Ybbs2020" 

By 2020, VERBUND will invest approx. 144 million Euro in the modernisation and efficiency increase of Austria's oldest Danube power plant Ybbs-Persenbeug as part of the project "Ybbs 2020". The increased output thus generated corresponds to the annual consumption of 17,000 households.

Technical Description 

The oldest Danube power plant in Austria was planned already in the 1920s and was completed in 1959. The power plant was constructed in the riverbed on the Danube and each have a power plant hall on the southern and northern banks. In both of the power plant sections there are three built-in "standing" Kaplan turbines. Each one of them propels a three-phase generator. Since 1996, a seventh machine unit in a small powerhouse on the southern bank generates electricity. In the middle of the power plant facility there are five weir fields, each 30 m wide. On an annual average, the power plant generates around 1,336 GWh of electricity. 

Image from the Location

Owner VERBUND Hydro Power GmbH
Operator VERBUND Hydro Power GmbH
Commissioning 1959
Type Run-of-river power plant
Country Austria
Region Lower Austria
Waters Danube
Output 237 MW
Annual output 1,370,483 MWh
Turbine Kaplan
Connectivity Fish bypass is in the planning process
Environmental protection at VERBUND
The Ybbs-Persenbeug run-of-river power plant does not currently provide continuity for fish, as no suitable technology is yet available for overcoming this large drop in height given the cramped conditions.  As soon as new developments are identified, they will be tested by VERBUND for the Ybbs-Persenbeug site.
Below the power plant is the storage area of the Melk power plant. In the coming years, new gravel banks and islands will be created there as habitats and spawning grounds for fish in the area of the “Ybbs disc”, with support from the EU-LIFE+ programme.
Responsible treatment of the environment
Fish bypass

After the Second World War, Ybbs-Persenbeug was one of the most prestigious projects in Austria’s reconstruction. With an output of 236.5 MW, it is the fourth most powerful power plant on the Danube in Austria.

The south and north powerhouses with machines 1 to 6:

The power plant has a total of six main machine sets with vertically installed Kaplan turbines and a total nominal output of 200,000 kW. Three of them are located in the north and three in the south power plant. 

The two auxiliary sets of machinery in the separation columns each consist of a Kaplan turbi

ne from 1957 and 1958 with an output of 1,765 kW and 2,500 kW respectively and a generator.

The powerhouse of machine 7:

With an impeller diameter of 7.5 metres, the horizontally installed Kaplan bulb turbine is one of the largest Kaplan bulb turbines in Europe. This seventh machine delivers a maximum output of 48,000 kW with a head of 10.9 metres. 

Weir system:

The fields of the weir system are equipped with double hook gates. 

Hydro consulting from VERBUND

Historic photographs of the construction of the Ybbs-Persenbeug power plant:

VERBUND power plant Ybbs-Persenbeug