 If the export of heat energy to district heating is taken into account the energy conversion efficiency reaches 94-96%, making it one of the world's most efficient combined heat and power (CHP) stations.In preparation for conversion to 100% biomass in 2027, the plant has received a 360 tonne crane capable of transferring 800 tonnes of wood pellets per hour from ship to shore, although some environmentalists question the benefits of biomass.As a by-product, high quality plaster is made when cleaning the flue gas.