Hamburg will produce district heating from waste water, reusing resources efficiently.
In the heart of Germany, a groundbreaking project is underway at the wastewater treatment plant in Dradenau, Hamburg. This initiative, a joint effort between Hamburg Wasser and Hamburger Energiewerke, is set to revolutionise the city's energy landscape.
The centrepiece of this project is a 60-megawatt large-scale heat pump, slated to commence operation in 2026. This heat pump is poised to generate climate-friendly district heating from cleaned wastewater, making it a unique solution in Germany.
Centrally located at the outlet of the wastewater treatment plant, the cleaned wastewater has an average year-round temperature of at least 12 degrees Celsius, warmer than winter air. The heat pump will harness this thermal energy, converting it into usable heat for the city's district heating network.
The hot water generated by the heat pump will be stored in the Energy Park Hafen's heat storage, where climate-friendly heat from other local sources is also stored. This storage facility will ensure a consistent supply of heat, even during periods of low production.
The project is projected to supply heat to up to 39,000 Hamburg households, making a significant contribution to the city's energy needs. Moreover, the cooperation between Hamburg Wasser and Hamburger Energiewerke could potentially save up to 90,000 tonnes of CO2.
This initiative is an important step towards achieving Hamburg's climate goals, with the aim of making the municipal companies of Hamburg climate-neutral by 2040. Hamburg's Second Mayor, Katharina Fegebank, hailed the wastewater heat pump as a significant milestone for Hamburg's heat transition.
Further information and resources on this project can be found at hamburgwasser.de. The project at the wastewater treatment plant in Dradenau is a testament to Hamburg's commitment to sustainable energy solutions and its pursuit of full climate neutrality as soon as possible.
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