sentences:  Oldbury is one of four stations located close to the mouth of the River Severn and the Bristol Channel, the others being Berkeley, Hinkley Point A, and Hinkley Point B.Opened in 1967, it had two Magnox reactors producing 424 megawatts (MWe) in total – enough electricity on a typical day to serve an urban area twice the size of Bristol.Reactor 1 went critical on 18 September 1967 and first generated electricity on 9 November 1967, Reactor 2 started generating electricity in April 1968.