Lopwood and brushwood make high-grade charcoal

In comparison with other fossil fuels, charcoal emits low levels of sulphur and nitrogen oxides. This would result in lower local air pollution. Photo: Thor Nielsen

In comparison with other fossil fuels, charcoal emits low levels of sulphur and nitrogen oxides. This would result in lower local air pollution. Photo: Thor Nielsen

When the forestry machines have finished extracting timber, what is left are tops and branches – waste which cannot be used. However, according to researchers, it is possible to turn these heaps of lopwood into high-quality charcoal.

Branches, tops, lopwood and brushwood that are left in felled areas after the timber has been extracted are now set to become more than just an irritation to hikers and berry-pickers. The aim is to turn these heaps of lopwood into the purest possible biocarbon. That’s charcoal, to you and me.

So the raw material, known in the trade as brash, is now being put under the microscope.

SINTEF Senior Researcher Øyvind Skreiberg isn’t holding back. “This could revolutionise Norwegian bio-energy production”, he says.

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