Knivsta
Facts
Country
Sweden
Heat Capacity
43 MWth
Technology
Heat plant
Main Fuel
Biomass
Vattenfall ownership share
100 %
Status
In Operation
Vattenfall operates both a heating plant and a district heating network in Knivsta, south of Uppsala.
The heating plant in Knivsta has been in operation since 1976. Its primary fuel is wood chips, bark, and other waste products from the forestry industry. A significant proportion of this comes from local suppliers. Fossil oil was phased out in 2025, meaning that Vattenfall's district heating in Knivsta is now produced entirely with fossil-free biofuels.
In May 2023, a new boiler was commissioned to further strengthen the district heating supply. Fired with pellets or wood chips, it is used as a base load in summer and as a peak load on the coldest winter days.