Altenwörth Power Plant on the Danube

Technical Description

The Altenwörth power plant, which uses a low-height construction method, was built between 1973 and 1976 around 20 km downstream from Krems, with co-financing by Energie AG Oberösterreich, Salzburg AG and VKW. In the powerhouse, which is on the right bank, there are nine machine units comprising a Kaplan bulb turbine each and a built-in DC coupled three-phase generator. With a total capacity of 328,000 kW, it is the most productive Danube power plant and generates around a sixth of all electricity from the Danube from renewable hydropower.

Inspection works in 2017

In the late summer, preparations for inspection of machine No. 3 started with a diving operation. More about the divers' mission in flow, the VERBUND blog.

Austria's largest renaturation project

In the summer of 2016, with Project LIFE+ Traisen, the estuary area of the new Traisen River downstream from the Altenwörth power plant was completely restructured over a distance of 9.4 kilometres. The mouth of the Traisen had been moved downstream from the power plant at the time the Altenwörth power plant was constructed on the Danube, and the river had been straightened and fitted with a concrete bed. Along with project partners, the floodplains landscape has now been completely restructured and diversified.

Lower Austria's longest fish bypass

Location of the new fish bypass at Altenwörth
Location of the new fish bypass and measures on the old course of the river.

Technical data:

Owner: VERBUND Hydro Power GmbH
Operating company: VERBUND Hydro Power GmbH                                 
Beginning of operation: 1976
Type:  Run-of-river
Country, State: Austria, Lower Austria
Waters: Danube
Capacity: 328 MW
Annual generation: 2.004.196 MWh
Turbines: Kaplan (9)
Fish bypass: in the planning process

Querschnitt der Turbine im Kraftwerk Altenwörth
Cross-section of the turbines at the Altenwörth run-of-river power plant

Project LIFE+ Traisen

Aerial image of the new course of the Traisen river with meanders

The redevelopment of the Traisen river mouth is Lower Austria's biggest land restoration project. A natural floodplain landscape with an amazing variety of species has been created over a distance of 9.4 kilometres

Projekt LIFE+ Traisen


Florian Seidl Florian Seidl

Media Spokesperson for Generation

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