From here, the coarse RDF is automatically fed by belt conveyor into the two boilers. Just before the fuel is delivered to the boilers, non-ferrous metals are removed by an eddy current separator. An overfeed system ensures that there is always enough fuel available for the boilers, and returns any balance to the store. Recirculated flue gases blow the fuel across the bed. Non-combustible material is continuously removed from the bed which has dolomite added to it to reduce boiler tube fouling and control emissions of sulphur dioxide.
Heat released during combustion is used to produce steam which in turn drives a turbine.