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How waste heat from Hamburg’s copper smelter is warming the city but not the planet

By District Energy posted 07-22-2025 15:50

  

Euro News

Summary

Hamburg, in northern Germany, is home to a one-of-a-kind district heating system. The hot water that supplies it is largely obtained from waste heat from the city’s copper smelter, meaning no CO2 is released.

The Hafencity area, once part of Hamburg’s port, is now a large urban redevelopment project. Since 2018, the buildings in eastern Hafencity have been connected to a district heating system fuelled by CO2-free industrial waste heat. The multi-metal company Aurubis and the energy supplier Enercity Contracting got together to make it work. 

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