New bio-boiler plant improves energy efficiency at UPM Joensuu plywood mill
The new bio-boiler plant has been put into operation at UPM Joensuu Plywood Mill. It replaces the combined heat and power plant which was built in 1962. The modern bio-boiler plant not only improves the mill's energy efficiency but also environmental performance, occupational safety and fire safety. The boiler uses biofuel, i.e. by-products of plywood production, such as bark and wood chips. Thus, no additional trees are cut down to generate thermal energy. The combustion technology based on the grate technology is more efficient than the technology of the old power plant, which means lower fuel consumption per heat output and thus lower emissions.