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Derome goes from pellets to woodchips to cut transport emissions at Tanumshede

Sweden's largest family-held solid wood processing group, Derome AB has retrofitted a wood pellet fired heat boiler at its Tanumshede wood truss facility to run on woodchips, derived on-site from wood processing residues. In doing so the company has reduced carbon emissions even further by eliminating fuel transportation emissions entirely.

Derome AB has retrofitted a wood pellet fired heat boiler at its Tanumshede wood truss facility to run on woodchips, derived on-site from wood processing residues. In doing so the company has reduced carbon emissions even further by eliminating fuel transportation emissions entirely (photo courtesy Derome).

Derome’s site in Tanumshede, a municipality in Bohus county on the Swedish west coast consists of a timber roof truss manufacturing plant, a builders merchants yard also operated by Derome, and external tenants. On-site, truss manufacturing gives rise to wood residues in the form of off-cuts.

The property was previously heated with a wood pellet boiler. Although the pellets are made by Derome, these are produced at its integrated sawmill and wood pellet plant in Kinnared thus requiring transport to the Tanumshede site.

Instead, Derome saw an opportunity to rebuild the boiler converting it into a woodchip boiler to use the wood residues generated onsite instead. At the same, it transitioned the truss plant as a district heating client, thereby better visualizing actual heat consumption.

It has worked remarkabley well. Our woodchip boiler sells 100 percent of the energy to the district heating network. We then buy back district heating to our property. This also means that we no longer have any emissions associated with fuel transportation, we have removed 33 truck deliveries per year, said Patrik Vendelskulle.

Local ecosystem and self-sufficiency

Patrik Vendelskulle highlights the circular economy approach when Derome first looked into using woodchips to heat the roof truss plant. It is also possible to expand the heat network further to other businesses in the vicinity.

Even if all the pellet transport trucks used 100 percent renewable fuels, such as ED95, biomethane, or HVO, the project has shown that they are unnecessary.

At Derome, we have a strong focus on environmental issues and have really succeeded in reducing the number of transports. I also want to mount rooftop solar PV so that we become self-sufficient in both heating and electricity here in Tanunshede, ended Patrik Vendelskulle.

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