The process enables the cold water from Sundsvallsåsen to be combined with absorption cooling, which is a process where energy from district heating is used to produce cooling. Thomas Nordin describes this further.
“Because district heating is needed mostly in the winter and district cooling mostly in the summer, the systems complement each other. This gives Sundsvall Energi a more even production where energy from waste incineration in Korstaverket and waste heat from the industry are the main components of the energy system.”
This first phase of the district cooling network is currently being planned and Sundsvall Energi will start the digging for the new lines in 2020. One of the first customers to be connected to the new network is a new hotel to be opened in the spring of 2021.
“This is an infrastructure project that will take several years to complete,” says Thomas. We see a number of stages in front of us where the pace of the expansion is determined by the property owners and their interest in being connected to the system.