Thurnsdorf Run-of-River Power Plant

The Thurnsdorf run-of-river power plant is south of the town of Enns, along the border between Upper and Lower Austria.

*Source: ENTSO-E Production 2017
The St. Pantaleon power plant was built between 1960 and 1965. In 1976/77, the machines were automated and the remote control of the entire plant moved to Mühlrading. Two Kaplan turbines generate around 262 GWh of electricity annually.
Turbines and generators: The powerhouse accommodates two vertically mounted Kaplan turbines with an expansion output of 27,287 kW each and a flow rate of 145 m³/sec. Immediately above these are two directly coupled generators of different designs: One is a 32,000 kVA single-phase alternator (traction current) with a nominal frequency of 16 2/3 Hz, the other a 31,400 kVA three-phase synchronous generator with the VERBUND standard frequency of 50 Hz.

Transformers: A 32,000 kVA single-phase transformer is available for raising the single-phase current from 8.6 kV to 120 kV. The generated energy is conducted via a loop to an ÖBB line on the west site of the structure. The three-phase current is raised from 6.3 kV to 110 kV by a 31,400 kVA transformer. Switchgear of Energie AG located to the east of the power plant feeds the generated energy into the Upper Austrian regional grid. The power plant’s own requirements are ensured by a 500 kVA, which lowers the energy generated in the Thurnsdorf weir power plant from 20 kV to 0.4 kV. Since the year 2000, the power plants on the Enns have been controlled from the control room in Steyr.