Vänersborg
Facts
Country
Sweden
Heat Capacity
108 MWth
Technology
Heat plant
Main Fuel
Biomass
Vattenfall ownership share
100 %
Status
In Operation
The Vänersborg plant was commissioned in 1985. As much as possible, waste heat from the Vargön Alloys company is used in production. Bio-oil has been used for peak and reserve power since 2003.
Since 2017, Vänersborg's district heating network has been connected to Trollhättan's, enabling waste heat from Vargön Alloys to be utilised even more efficiently.
In 2021, fossil fuel oil was replaced with bio-oil, meaning district heating in Vänersborg is now produced using 100 per cent fossil-free biofuels.
In order to meet the growing demand for district heating, the Vänersborg plant was expanded in 2025. The new plant, called Lignum (Latin for 'wood'), is fuelled by wood pellets, a by-product of the forestry industry.