Utility company Vantaan Energia has said the conversion of its Martinlaakso Power Plant is on to track to be completed early this year.
In a statement, issued this week, the firms said "at the moment" there is a trial run of a biomass-fired boiler to test "performance and usability", indicating the facility was in the final stages of commissioning.
According to the statement, when the test run is approved, the plant will be handed over and production will "start".
Vantaan said in April 2016 that the €50m project would replace the use of fossil fuels with woodchips "mainly sourced domestically", along with sawdust, plywood industry waste and a "small amount of peat". Overall, the plant has capacities of 195MWe and 390MWth.