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ANDRITZ: Modernization of Austria’s oldest hydropower plant on the River Danube Ybbs-Persenbeug provides clean energy for additional 17,000 households


ANDRITZ HYDRO, part of international technology Group ANDRITZ, has received an order from VERBUND, the leading Austrian electrical energy supplier and one of the biggest hydropower generation companies in Europe, to modernize the Ybbs-Persenbeug run-of-river power plant (total capacity: 236 megawatts), which went into operation in 1959.

Recently, one of the first major project milestones, the model test of the turbines, was finished successfully. 

Due to new technologies in hydraulic and electrical engineering, improved materials and manufacturing techniques, and digital control systems, the hydropower plant will generate additional power for 17,000 households until 2020. Currently the Danube river hydropower plant delivers power for 380,000 households.

The modernization will improve the plant’s efficiency and availability, and its annual output will increase by around 60 million kilowatt-hours, representing the equivalent to an annual saving of 49,000 tons of CO2 emissions. With its “Ybbs 2020” project, VERBUND is continuing its collaboration with ANDRITZ HYDRO to revitalize the power stations on the River Danube. Aschach power station on the Danube was already modernized between 2006 and 2010.

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International technology Group ANDRITZ is a globally leading supplier of plants, equipment, and services for hydropower stations, the pulp and paper industry, solid/liquid separation in the municipal and industrial sectors, the steel industry, and the production of animal feed and biomass pellets. In addition, ANDRITZ offers technologies for certain other sectors including automation, pumps, machinery for nonwovens and plastic films, steam boiler plants, biomass boilers and gasification plants for energy generation, flue gas cleaning plants, plants for the production of panelboard (MDF), thermal sludge utilization, and torrefaction plants. The publicly listed ANDRITZ GROUP is headquartered in Graz, Austria and has a staff of approximately 16,700 employees worldwide. ANDRITZ operates over 180 production sites as well as service and sales companies all around the world.


ANDRITZ HYDRO supplies electromechanical equipment for hydropower stations. With over 170 years of accumulated experience and more than 30,000 turbines installed totaling approximately 400,000 megawatts output, the business area is one of the world’s leading suppliers for hydraulic power generation, offering the complete product portfolio, including turbines, generators, and additional equipment of all types and sizes: “from water to wire” for small-scale hydropower stations up to outputs of more than 800 megawatts. ANDRITZ HYDRO also holds a top position in the growing hydropower plant service, refurbishment, and upgrade market. Pumps (for water transport, irrigation, and applications for various industries) and turbogenerators for thermal power stations are also allocated to the business area.

The Ybbs-Persenbeug hydropower plant

The Ybbs-Persenbeug hydropower plant

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Michael Buchbauer
Alexander Schwab
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