MAN Energy Solutions’ heat pump system utilizes a combination of renewable energy sources to provide heating for 25,000 households.
The world’s largest CO2-based seawater heat pump has commenced operations at the port of Esbjerg in Denmark. The technology, developed by the Swiss company MAN Energy Solutions, represents a significant advancement towards reducing carbon emissions from infrastructure and serves as an example for cities looking to minimize their environmental impact, Interesting Engineering reported on December 1st.
MAN Energy Solutions’ seawater heat pump system. (Photo: MAN Energy Solutions)
The 70 MW heat pump is a key component of a broader strategy aimed at reducing dependence on fossil fuels. This advanced heat pump facility harnesses renewable energy, extracting heat from seawater and a nearby wind farm to supply heating for 25,000 households. The plant is expected to deliver 280 MWh of heat annually while reducing carbon dioxide emissions by 120,000 tons each year.
According to MAN Energy Solutions, their technology offers an option for other residential centers to explore heating solutions. The project’s significance lies not only in the scale of the CO2 heat pump but also in its ability to integrate multiple energy sources.
The facility combines a 60 MW wood chip boiler to ensure a continuous supply of renewable energy. Additionally, a 40 MW electric boiler enhances the system’s resilience, meeting peak demand and providing backup heating solutions. The use of CO2 as a refrigerant in the heat pump highlights the project’s positive impact on environmental protection, as CO2 is a safer and more sustainable option than traditional refrigerants.
Beyond environmental benefits, the system is designed for high efficiency and stability with the power grid. It can adapt to changes in energy demand and can be switched on and off multiple times a day with rapid response capability.
The new heat pump system is equipped with two sealed HOFIM compressor-motor units developed by MAN Energy Solutions. This equipment uses high-speed motors and active bearings, eliminating the need for oil and minimizing maintenance requirements. Additionally, the system features remote monitoring and diagnostic data analysis to ensure optimal performance.
