The order will see Andritz equip the power plant with a 170-megawatt variable-speed reversible pump turbine, the generator and related automation.
The advanced pumped storage plant will act as a green battery by balancing fluctuations in power generation from wind and solar plants, ensuring security of supply. The plant takes advantage of the topography to store energy and make it available whenever needed.
Excess energy from renewable sources will be used to pump water from the Traunsee lake into a mountain reservoir 500 meters higher up at Grosser Sonnstein. When needed, the stored water will be released to generate energy that would otherwise have to be produced from fossil sources.
Scheduled to start commercial operation in 2028, the plant will be able to supply 280,000 households with green electricity.
