VERBUND's power plant at Weinzödl is a run-of-river power plant situated on the river Mur north of Graz in Styria.
The former European Capital of Culture stands for the combination of tradition and innovation. An ideal place for generating green electricity with the latest technology.
Since 2015, new turbines and generators have increased the annual generation of the power plant by about one fifth. The increased generation of electricity from 100% hydropower and the simultaneous improvement of the ecological conditions at the site are creating significant added value for the surrounding region.
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: 18 MW
Annual output: 74,034 MWh
Turbine: Kaplan
Connectivity: Fish bypass
Powerhouse: The machine hall houses two sets of machinery installed in 2014/2015. They consist of a Kaplan bulb turbine with an impeller diameter of 3.7 metres and a generator.
During an increase in the efficiency of the power plant between 2013 and 2015, not only the machine sets but also the entire control technology of the power plant, the auxiliary power supply, the electrical protection, the battery systems, the generator diversion and the ventilation system were renewed. In addition, fire protection measures were implemented and other upgrades carried out.
Weir: The weir gates are designed as segment gates with attached flaps.
Mühlkanal small power plant: The Mühlkanal branches off at the right-hand weir pier of the Weinzödl power plant, the gradient stage of which is used by a small power plant. The third set of machinery from 1982 is installed here. It consists of a simply regulated Straflo turbine with a nominal output of 200 kW and an asynchronous generator.
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The building works carried out at the power plant between 2013 and 2016 not only improved the power plant’s efficiency but also created a fish bypass at the site.
It consists of a vertical slot bypass, a near-natural raceway section in the form of a concrete box profile as well as a bridge construction for crossing the Mühlgang canal. The total length of the ascent is approximately 368 metres to overcome the 11.5 metre difference in height below the lower and upper water levels. Entry into the fish bypass is directly in the area downstream of the machinery, making it easy for the fish to find the facility.
