Kühtai storage power plant project, Austria
Name of the Project
Kühtai storage power plant project.
Location
Tyrol, in Austria.
Project Owner/s
Austrian power utility Tiwag.
Project Description
The Kühtai storage power plant project is being built as an expansion to the Sellrain-Silz series of power plants.
The expansion comprises three main components: the Kühtai 2 power plant, the Kühtai reservoir and a water diversion gallery with six water intakes.
The new power station has been designed for pumped-storage operations and will be entirely underground. Two pump-turbines are at the core of the plant. The new 31-million-cubic-metre Kühtai reservoir will be built at the back of Längental valley. The dam will be an earth core rockfill dam, 113 m high from the original valley floor to the dam crest. The full supply level will be at 2 140 m above sea level. The rockfill dam will be built of material extracted on site from the future reservoir or excavated waste from tunnelling activities.
The project will offset 127 000 t/y of carbon dioxide emissions.
Potential Job Creation
Not stated.
Capital Expenditure
Not stated.
Planned Start/End Date
Construction is scheduled to start in 2021.
Latest Developments
None stated.
Key Contracts, Suppliers and Consultants
AFRY (execution design of the main caverns, including structural calculations, coordination with electromechanical parts, preparation of formwork and reinforcement drawings, as well as a three-dimensional coordination model of the main structures of the pumped storage power plant).
Contact Details for Project Information
Tiwag, email info-skw.kuehtai@tiwag.at.
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