stokers, The total evaporative capacity was 229,000 lb/h (28.8 kg/s), steam conditions were 200 psi and 620–650 °F (13.8 bar, 327–343 °C), and supplied steam to: Turbo-alternators: 2 × Parsons 10 MW turbo-alternators, 3000 rpm, generating at 6.6 kV Condenser cooling water was taken from the River Thames. Operations Operational data for the early years of operation was as follows: There was a growth in the number of consumers and the amount of current sold within yearly variations. Operating data 1921–23 The operating data for the period 1921–23 is shown in the table: 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. Hammersmith power station was electrically connected to Fulham power station via twin 66 kV underground cables and to Barnes power station via triple 6.6 kV underground lines. Operating data 1937 and 1946 Hammersmith power station operating data, 1937 and 1946 is as follows. The British electricity supply industry was nationalised in 1948 under the provisions of the Electricity Act 1947 (10-11 Geo. 6 c. 54). The Hammersmith electricity undertaking was abolished, ownership of Hammersmith power station was vested in the British Electricity Authority, and subsequently the Central Electricity Authority and the Central Electricity Generating Board (CEGB). At the same time the electricity distribution and sales responsibilities of the Hammersmith electricity undertaking were transferred to the London Electricity Board (LEB). Operating data 1954–65 Operating data for the period 1954–65 is shown in the table: The data demonstrates the less intensive use of the power station during its last decade of operating life. The electricity supplied, in MWh, by Hammersmith power station over its operating life was: Closure Hammersmith power station was decommissioned in 1965. The buildings subsequently demolished and the area has been redeveloped with commercial and residential buildings. 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 Former power stations in London