Krippau Run-of-River Plant

The Krippau run of river plant is situated in the municipality of Altenmarkt near St. Gallen on the river Enns along the Styrian Iron Road.

Man in the kitchen

39,448 households

supplies the Krippau power plant

Conscious of the environment

131.773 avoided 
tonnes of CO2*


Efficiency increase

Modernisation increases output by 2 MW per machine set, planned until 2020

Technical Description 

The Krippau power plant was constructed from 1964 to 1966. Seeing as the construction site for a powerhouse was too small, the machine unit was housed in a cavern in the mountain. A vertical Kaplan turbine generates annually on average around 174 GWh of electricity at a nominal flow of 120m³/s.

Image from the Location

Owner VERBUND Hydro Power GmbH
Operator VERBUND Hydro Power GmbH
Commissioning 1965
Type Run-of-river power plant
Country Austria
Region Styria
Waters Enns
Output 30 MW
Annual output 174,794 MWh
Turbine Kaplan
Connectivity Fish bypass is in the planning process
Environmental protection at VERBUND

There is currently no fish bypass at the site. Various types of fish bypass are currently still being evaluated in order to ensure an optimal solution for the conditions at the site.

Responsible treatment of the environment
Fish bypass

Turbines and generators:
A vertically mounted Kaplan turbine (built in 1965) achieves a nominal output of 24,000 kW at a nominal flow rate of 120 m³/sec. and a head of 23.0 metres. The directly coupled 27,000 kVA three-phase synchronous generator with a shielded design has a nominal voltage of 10.5 kV.

The generated energy is raised from 10.5 kV to 110 kV by a 27,000 kVA machine transformer in the main power plant. 

Hydro consulting from VERBUND