HOFOR has started building a large heat pump in Sundkrogsgade in Nordhavn, which will supply electricity-based district heating to the capital. This is stated by HOFOR A/S in a press release.
The heat pump will be built into a power plant that already houses a district cooling plant and a wastewater pumping station. The plant will utilize heat energy from the seawater in the Kalkbrænderiløbet stream and use electricity to raise the temperature so that the heat can be sent out into the district heating network.
- The heat pump in Sundkrogsgade is the next concrete step in HOFOR's plan to ensure that we use more electricity and less biomass to produce district heating. Large heat pumps like this one – and the other one that we are currently installing in Herjedalgade on Amager – allow us to make much greater use of electricity from wind turbines and solar cells to produce the capital's district heating, says John Halkjær Christensen, Area Manager for District Heating at HOFOR.
The upcoming heat pump will have an output of 24 MW and will be able to supply heat and hot water to around 12,500 typical Copenhagen apartments. This will make it the second largest heat pump in the capital area after HOFOR's upcoming plant on Amager with an output of 29 MW.
The initial work includes, among other things, establishing an underground seawater chamber where seawater will be filtered and pumped into the building. According to HOFOR, this work will be particularly noticeable to neighbors and passersby, including when sheet piles are driven into the ground.
The actual installation of the heat pump is expected to begin in the fall of 2026, and the plan is for the system to be able to supply heat to the district heating network from the beginning of 2028.
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