Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,414 pages of information and 233,868 images on early companies, their products and the people who designed and built them.
1948 The Electricity Act 1947 provided the basis for the nationalisation of Great Britain's electricity supply industry. The Act created the British Electricity Authority which, together with the South East Scotland Electricity Board and the South West Scotland Electricity Board and 12 Area Electricity Boards, took over the operations of over 600 (another source says over 560) small power companies, municipal authority electricity departments and the Central Electricity Board, plus nearly 300 power stations operated by these organisations. The BEA was responsible for the generation, distribution and sale of electricity to users. The North of Scotland Hydro-Electric Board remained independent of the BEA. 
Twelve regional electricity boards were established in England and Wales to distribute electricity to customers: