How the world’s first electric grid was built
4 days ago
- #UK Infrastructure
- #National Grid
- #Electricity History
- In 1883, Sir Coutts Lindsay installed a small generator at the Grosvenor Art Gallery, marking an early use of electricity in London.
- The London Electricity Supply Corporation was formed in 1887, establishing one of the first modern power stations in Deptford by 1891.
- Early electricity supply was chaotic, with 50 different systems, 10 frequencies, and 24 voltages operating in London by 1918.
- The First World War highlighted inefficiencies in the UK's electricity system, leading to government intervention and encouragement of AC over DC.
- The Electricity (Supply) Act of 1919 established regional joint electricity authorities to promote interconnection, but progress was slow due to local opposition.
- The UK lagged behind other countries in electricity consumption due to fragmented systems and lack of standardization.
- The Central Electricity Board was established in 1926 to create a synchronized AC grid, leading to the National Grid's inception in 1933.
- In 1937, engineers synchronized regional grids overnight, a move that became official policy the following year.
- Post-WWII, the Labour government nationalized the grid in 1947, creating the British Electricity Authority to manage generation and transmission.
- The Supergrid was built between 1950 and 1960 to connect regional grids and handle higher voltages, improving transmission efficiency.
- Privatization in 1989 under Margaret Thatcher dismantled the Central Electricity Generating Board, leading to a competitive generation market.
- The National Grid Company was privatized in 1995, with transmission and distribution costs falling by 30% since the 1990s.
- The UK government announced plans in 2024 to renationalize the operation of the electricity network, moving it to a new National Energy System Operator.