aerial photograph of Didcot power station chimney Oxfordshire England UK. There are actually two power stations at Didcot, Didcot A and Didcot B. Didcot B is still active and powered by ntural gas whereas Didcot A was coal powered and has now been shut down. This photo was taken in 2016 showing Didcot A partially demolished. The Chimney is the largest structure on the site and reaches a height of 650 ft (200 m)