VERBUND's Mellach district heating power plant

District heating power plant Mellach

The VERBUND district heating power plant Mellach is situated in the municipality of Mellach in Styria. Austria’s last coal-fired power plant produced electricity and heat for the Styrian provincial capital Graz for 34 years and can in future be used for short periods with natural gas as a fuel to support the national electricity grid.

The VERBUND district heating power plant in Mellach

Ready to spring into action when sun and wind plants

drop out due to the weather.

high is the free-standing stack of the district heating power plant

Certified in accordance with ISO14001

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Owner	VERBUND Thermal Power GmbH & Co KG
Operator	VERBUND Thermal Power GmbH & Co KG
Commissioning	1986
Type	Thermal power plant
Country	Austria
Region	Styria
Output	246 MW

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Ecology & environmental protection

The Mellach district heating power plant and the Mellach combined cycle gas turbine power plant on the same site are certified to EMAS and ISO 14001.

Responsible treatment of the environment

The power plant consists of the machine and boiler house, the flue gas cleaning plant, the flue gas desulphurisation plant and a plant for removing dust. The power plant is cooled using water from the river Mur.

The Mellach district heating power plant is equipped with a cogeneration system: A portion of the steam is taken from the turbine and passed to a heat exchanger, where the steam condenses and gives off its energy. This increases the total amount of energy produced from about 40% to as much as 68%. The power plant is put into operation each year from September to May and supplies up to 225 MW of electricity and 230 MW of district heating. Coal as well as natural gas are used as fuels.