Feb 13, 2009. /Lesprom Network/. New types of green fuels produced using waste from forestry may be among the first new generation biofuels to start production, an executive from Finnish forestry and paper group UPM-Kymmene said on February 12, Thursday, as Reuters agency informed Lesprom Network. UPM was planning to expand into biofuel production and was currently conducting trials to produce biodiesel, bioethanol and heavy fuel oils from forest residues including tree bark, twigs and stumps, said vice president corporate relations and development Hans Sohlstrom. Governments worldwide want second generation biofuels to replace first generation green fuels produced from foods such as corn, sugar and vegetable oils, following bitter controversy about whether biofuel production raises food prices. "According to our plans we should have the necessary information in our hands to make decisions about the first large scale commercial unit by the middle of this year," Sohlstrom said on the sidelines of a conference on second generation biofuels organised by German commodity analysts F.O. Licht. "However I am not saying we will make a decision as many things have changed in this financial and economic climate." Any investment could involve hundreds of millions of euros. If current trials were positive, a start to commercial green fuel production from forest residues could be possible in 2012-2013, he said. About three million tonnes of forestry residues was likely to be sufficient to produce 200,000 tonnes of biodiesel. "We believe there are large volumes of residues that could be used for biofuel production in Europe and elsewhere," he said. "Around half of a tree's biomass is currently left as residue which cannot be used for timber or paper production."