21 August 2019

Waste Heat Recovery at the Steel and Rolling Mill “Marienhütte”, Graz (Austria)

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A long-standing cooperation between two companies, the energy service provider and district heating network
operator Energie Graz GmbH & Co KG and the steel and rolling mill Marienhütte GmbH, has resulted in a project that is economically viable for both partners and ecologically valuable for the Graz region (Austria). Due to the installation of two highly efficient large heat pumps, waste heat from the steel and rolling mill Marienhütte GmbH can be used to deliver environmentally friendly heat to the existing district heating network in Graz.