Nuclear power in the United Kingdom a total of 12.5GW of new nuclear capacity, slightly more than the total capacity of British Energy's currently operating plants. In 2009 government officials believed a carbon price floor would be needed to encourage companies to commit funds to nuclear build projects. In November 2009, the Government identified ten nuclear sites which could accommodate future reactors: Bradwell in Essex; Braystones in Cumbria; Kirksanton in Cumbria; Sellafield in Cumbria; Hartlepool in County Durham; Heysham in Lancashire; Hinkley Point in Somerset; Oldbury in Gloucestershire; Sizewell in Suffolk; and Wylfa in North Wales Most of these sites already have a nuclear power station;
Oldbury Nuclear Power Station 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. The construction was undertaken by a consortium known as The Nuclear Power Group ('TNPG'). The reactors were supplied by TNPG and the turbines by AEI and C. A. Parsons & Co. The main civil engineering contractor was Sir Robert McAlpine. Construction on site began in 1961. Oldbury was the first nuclear power station in the UK to use prestressed concrete pressure vessels, earlier Magnox reactors having used steel