Spielfeld Run-of-River Power Plant

VERBUND's power plant at Spielfeld is a run-of-river power plant situated on the river Mur and north Spielfeld in Styria.

The Spielfeld power plant was built between 1980 and 1982. The Spielfeld power plant, the final link in the Mur power plant chain, houses two machine sets that generate around 68 GWh of electricity per year.
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Owner VERBUND Hydro Power GmbH
Operator VERBUND Hydro Power GmbH
Commissioning 1982
Type Run-of-river power plant
Country Austria
Region Styria
Waters Mur
Output 13 MW
Annual output 67,691 MWh
Turbine Kaplan
Connectivity Fish bypass
Environmental protection at VERBUND

Ecology & environmental protection

A fish bypass was implemented at the Spielfeld location in 2007. This was created by combining the “Gamlitzbach” flume with a 3 km-long vertical slot pass at the exit into the reservoir. The existing flume used to be fed only with the water of the Gamlitzbach and has now been made more attractive for the fish with the additional flow rate. In addition, the regulated lower reaches of the Gamlitzbach have now been structurally upgraded by means of revitalisation measures.
Fish bypasses safeguard the variety of species
Turbines and generators: Located in the powerhouse are two horizontally installed machine sets, each of which consists of a Kaplan bulb turbine with a nominal output of 6,500 kW and a directly coupled three-phase synchronous generator with a nominal output of 10,000 kVA. The machine transformer has a nominal output of 20,000 kVA. The generated electricity is fed into the 110 kV Leibnitz-Gosdorf line.

Weir system: The weir fields have segment gates with flaps. The inflatable rubber dam at the mouth of the Gamlitzbach is controlled with the aid of a float-controlled pump.