The world's largest CO2-based seawater heat pump with a capacity of 70 MW has been put into operation in the port of Esbjerg, Denmark.

According to Amac News: Swiss company Solutions MAN Energy, which developed the technology, said the facility is an important step towards decarbonizing heating infrastructure.
The facility uses renewable energy to extract heat from seawater and nearby wind farms to heat 25,000 households. According to the company, the plant will produce around 280,000 megawatt hours of carbon-neutral heat annually.
The technology reduces carbon dioxide (CO2) emissions by up to 120,000 tons per year and is being considered as a solution for population centers looking for sustainable heating options.
The facility also features a 60 MW boiler fueled by sustainable wood and a 40 MW electric boiler plant, increasing the flexibility of the system.
The use of CO2 as a refrigerant demonstrates the project’s commitment to environmental responsibility and is particularly important due to its location on the Wadden Sea coast, a UNESCO World Heritage Site with a sensitive ecosystem.
Equipped with two sealed, oil-free HOFIM compressor motor units, the heat pump improves the efficiency and sustainability of the energy grid and allows for adaptation to changes in energy demand. The system is equipped with remote monitoring and data analysis capabilities to ensure optimal performance and efficiency.
The use of this technology is said to help cities decarbonize their heating infrastructure and promote sustainable communities.