Coal supplies for a power station. Bucketwheel machine at the stockpile of a coal-fired power station, with chimneys and cooling towers in the background. The bucketwheel machine is used to add and remove coal from the stockpile. This is the Drax power station near Selby, North Yorkshire, UK. As of 2006, Drax is the largest, cleanest and most efficient of the UK's coal-fired power stations. It can burn 36,000 tones of coal a day to produce 4,000 megawatts of power, around 7% of the UK's electricity needs. It was built from 1974-1986. For a view of the coal stockpile, see T190/440.