District cooling in Helsingborg, Sweden
At Västhamnsverket in Helsingborg, heat pumps utilize treated water from Helsingborg’s sewage system to produce district heating and district cooling. The local district heating company, Öresundskraft is planning to expand the current district cooling grid by enabling an absorption cooling technology to deliver cooling to offices and commercial buildings, hereby replacing individual chillers with centralized cooling.
Öresundskraft begun production and selling district cooling in 1999 and since has the demand grown steadily. Helsingborg have especially found an increased cooling demand from offices and commercial buildings. Öresundskraft have accordingly decided to invest € 2.93 M in an expansion of the current district cooling system and a modernization of production facilities. It is expected, that the fully implemented district heating system can reduce both electricity consumption and environmental emission between 65 and 70 %, compared to traditional and individual refrigeration system. The district cooling capacity is expected to be increased from 16 MW to 30 MW, when the project is fully implemented.
During winter, the district cooling is supplied with sea water to deliver the cooling needed. In summer, an absorption heat pump utilizes excess heat from the district heating network, to transfer energy, and hereby produce cooling for the local offices and buildings. The district cooling option eliminates approximately 1200 ton of CO2 equivalent emissions annually, as fewer individual chillers reduce the emission of hydrofluorocarbons, which are potent and short-lived greenhouse gasses. The system is built in cooperation with the current Västhamnsverket and construction is expected to begin during fall and winter 2017/2018.
In 2017, the project won a Climate & Clean Air Award for using climate safe and energy-efficient technology to cool down the city of Helsingborg.
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