Mar 07, 2013. /Lesprom Network/. Metsä Fibre’s Joutseno pulp mill is the world's largest single-line softwood pulp mill. The new gasification plant improves the efficiency of renewable energy usage by replacing the natural gas used with bio fuel made from tree bark. The gasification plant makes the pulp mill the first carbon dioxide-neutral facility in Finland during normal operations, as the company said in a press release received by Lesprom Network. The technology in the gasification plant is a new application in the Finnish pulp industry. This innovative and comprehensive solution uses surplus heat from the mill in drying tree bark. The plant considerably improves the mill’s energy-efficiency and further improves the mill’s environmental performance. Similar development work is under way at Metsä Fibre’s other mills as well, and all Metsä Fibre’s mills will become carbon dioxide-neutral in the coming years. Metsä Fibre is a significant supplier of bioenergy in Finland. Metsä Fibre’s mills account for approximately one fifth of all wood-derived electricity generated in Finland.