The combustion is fueled with sawmill residues such as bark, offcuts, sawdust, and wood chips, as well as selective thinning wood as needed. The fuel is either unloaded in the storage area near the push floors and transported to the push floors by a wheel loader or directly fed to the push floors. The push floors convey the fuel material with a closed-type mechanical conveyor to the combustion’s feeding device. The high-pressure steam boiler, with a fuel heat output of approximately 21,5 MW, is a radiant boiler with a steam generation capacity of 23 t/h at an operating pressure of 65 bar. It is designed as a multi-pass natural circulation boiler, including superheaters, economizers, and air preheaters, in a vertical arrangement. The flue gas temperature after the steam boiler is around 150 °C. A pre-separator and an electrostatic precipitator are used for flue gas dedusting. In the pre-separator (multicyclone type), the flue gas is pre-cleaned through centrifugal force separation. Additional dust particles are separated when the flue gas passes through the electric fields of the electrostatic precipitator, where the effect of high-voltage current causes them to deposit on the collecting electrodes. The induced draft fan provides the necessary negative pressure and directs the clean gases to the flue gas condensation system and further through the chimney into the atmosphere. To generate electricity, a steam turbine with a rated power of up to 5.000 kW is installed. The electrical power is fed into the public grid.