Central Electricity Board
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The United Kingdom Central Electricity Board was set up under The Electricity (Supply) Act 1926 to standardise the nation's electricity supply. At that time, the industry consisted of more than 600 electricity supply companies and local authority undertakings, and different areas operated at different voltages and frequencies (including DC in some places).
The CEB established the UK's first synchronised AC grid (the National Grid), running at 132 kilovolts and 50 hertz, which was operational over most of England by 1933. The CEB ceased to exist when the grid was nationalised by the Electricity Act 1947 and taken over by the British Electricity Authority.
The CEB coexisted with the Electricity Commissioners, an industry regulator responsible to the Ministry of Transport.
