operating data for the period 1921–23 is shown in the table: There was significant growth of demand and use of electricity. Under the terms of the Electricity (Supply) Act 1926 (16-17 Geo. 5 c. 51) the Central Electricity Board (CEB) was established in 1926. The CEB identified high efficiency ‘selected’ power stations that would supply electricity most effectively. The CEB also constructed the national grid (1927–33) to connect power stations within a region. Operating data 1946 Gravesend power station operating data in 1946 was: The British electricity supply industry was nationalised in 1948 under the provisions of the Electricity Act 1947 (10-11 Geo. 6 c. 54). The Gravesend electricity undertaking was abolished, ownership of Gravesend power station was vested in the British Electricity Authority, and subsequently the Central Electricity Authority and the Central Electricity Generating Board (CEGB).#council At the same time the electricity distribution and sales responsibilities of the Gravesend electricity undertaking were transferred to the South Eastern Electricity Board (SEEBOARD). Operating data 1954–69 Operating data for the period 1954–69 is shown in the table: The electricity supplied in MWh over the power station's operating life was as follows. In 1958 the Gravesend electricity district supplied an area of 98 square miles and a population of 104,280. The amount of electricity sold and the number and types of consumers was as follows: In 1958 the above totals were made up of the following: Closure The station was decommissioned in 1970. After closure the GEGB converted the station to a scientific research base, which continued in use until 1993. The buildings were demolished in 1995. See also Timeline of the UK electricity supply industry List of power stations in England References Coal-fired power stations in England Demolished power stations in the United Kingdom Former power stations in England Power stations on the River Thames Gravesend, Kent