| Hayle Power Station | |
|---|---|
 | |
| Official name | Hayle Power Station |
| Country | England |
| Location | Cornwall, South West England |
| Coordinates | 50°11′32″N5°25′47″W / 50.1922°N 5.4297°W |
| Commission date | 1910 |
| Decommission date | 1973 |
| Operator | Cornwall Electric Power Company |
| Thermal power station | |
| Primary fuel | Coal |
grid reference SW553381 | |
Hayle Power Station was a coal-fired power station situated at the mouth of the River Hayle, at Hayle in Cornwall, South West England. [1] [2]
On 13 March 1910, Harvey & Co of Hayle signed an agreement with the Cornwall Electric Power Company, for them to build a power station on land owned by Harveys. [3] [4] Stage 1 of the station's construction was completed by Carkeeks of Redruth. It began on 7 May 1910, and was completed thirty weeks later on 12 December 1910 and generation began. [3]
Initially the station used a single 900 kilowatt (kW) Belliss and Morcom (B&M) steam turbine, supplied with steam by two Babcock & Wilcox boilers. This powered a Dick, Kerr & Co. alternator. In 1911 a 500 kW (B&M) was added, to use steam from the first turbine. This powered a Lancashire Dynamo alternator. Another two identical generating sets were added between 1912 and 1913. Between 1914 and 1916, two 3,000 kW Richardsons Westgarth & Company, each supplied with steam by two Babcock & Wilcox boilers. This brought the station's generating capacity to 8,800 kW. [3]
In 1928 a 7,500 kW British Thomson-Houston (BTH) turbo-alternator was added, supplied with steam from the Babcock & Wilcox boilers. In 1929, a 500 kW Parsons turbo alternator was moved to the station from Carn Brea Power Station, along with a Babcock & Wilcox boiler, but they were never satisfactory and were removed by 1935. [3]
In 1932, a 10,000 kW English Electric turbo-alternator was added, provided for by a Sterling boiler. In 1933 the station was connected to the National Grid, so electricity could be imported or exported by the company. A 300 kW English Electric turbo alternator was installed in 1935, primarily for pumping circulatory water around the station in case of a shut down. By this time the station's nameplate generating capacity was 36,600 kW, but in 1936, the first six generating units were put up for sale as scrap, bringing the capacity down to 27,800 kW. [3]
In 1938, Imperial Chemical Industries built the British Ethyl Works near to the power station, and the station provided it directly with electricity at 11 kilovolts. The works also used the station's waste hot water. Associated Octel took over using the station's water in 1948. In December 1938, heavy snow fell on England and for the first time the station was required to operate at maximum capacity. [3]
In 1939, a 15,000 kW English Electric turbo alternator was added, provided with steam by a Sterling boiler. However this created problems with high water temperature and cooling problems on low tides, and so a dam was built near the station. [3]
In 1947, another 15,000 kW English Electric turbo alternator was added, provided with steam by two Sterling boilers. In 1949, a 20,000 kW English Electric turbo alternator was added, with a Yarrow boiler. In 1959, another 20,000 kW turbo alternator was added, this time provided by BTH, as well as another Yarrow boiler. This brought the station's generating capacity to its highest, at over 70,000 kW. [3]
In 1972, some of the station's older generating sets were taken out of service, the installed capacity was reduced to 66.3 MW. [5] In September 1973, Associated Octel closed and ceased to take the station's hot water. This, combined with large, modern stations taking base load, led to the station rarely being called upon to generate, and it closed by the end of the year. [3]
The high pressure boiler plant comprised two Stirling boilers each 100,000 pounds per hour, two Yarrow boilers each 200,000 lb/hr these had a working pressure of 425 psi and 825 °F (29.3 bar, 441 °C). [6] The low pressure plant comprised two Babcock & Wilcox 50,000 lb/hr boilers, one Babcock & Wilcox 60,000 lb/hr boiler, and two Stirling 100,000 lb/hr boilers; these operated at 250 psi and 730 °F (17.2 bar, 388 °C)(one at 825 °F, 441 °C). [6]
The capacity and electricity output of the station was as follows. [6] [5] [7]
| Year | Capacity MW | Output GWh |
|---|---|---|
| 1954 | 64 | 254.659 |
| 1955 | 64 | 246.119 |
| 1956 | 64 | 226.847 |
| 1957 | 64 | 214.959 |
| 1958 | 64 | 185.554 |
| 1961 | 83 | 136.175 |
| 1962 | 83 | 60.456 |
| 1963 | 83 | 139.893 |
| 1967 | 83 | 159.003 |
| 1971 | 43 | 70.206 |
The station's two chimneys were demolished in June 1981. The station's turbine hall and boiler room were demolished the following December. To fit with an agreement made before the station's construction, the site was cleared following demolition. [4]
Barking Power Station refers to a series of power stations at various sites within the London Borough of Barking and Dagenham in east London. The original power station site, of the coal-fired A, B and C stations, was at River Road, Creekmouth, on the north bank of the River Thames. These stations were decommissioned by 1981 and were subsequently demolished. The later gas-fired power station was built further down the Thames near Dagenham Dock in the early 1990s. The site of the former power stations is being redeveloped as Barking Riverside.
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Shoreham Power Station is a 420MWe combined cycle gas-fired power station in Southwick, West Sussex. It was built on the site of the Shoreham B Power Station.
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Pyrmont Power Station was an electricity generating plant located in the Sydney suburb of Pyrmont, New South Wales.
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The Percival Lane power station in Runcorn was built and operated by the Mersey Power Company Limited. It comprised two stations A and B commissioned in 1921 and 1941. The station supplied electricity to commercial, industrial and domestic users over a wide area of 95 square miles around the River Mersey including Widnes, Ellesmere Port and Runcorn.
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The Newport power stations supplied electricity to the town of Newport and the surrounding area from 1895 to the late 1970s. The original power station was in Llanarth Street which supplied electric lighting; a larger station, known as the East power station, was built in Corporation Road from 1903. They were owned and operated by Newport Corporation prior to the nationalisation of the British electricity supply industry in 1948. The East power station was redeveloped in the 1920s and 1940s to meet the increased demand for electricity.
Trafford power station supplied electricity to the Trafford and Stretford areas of Greater Manchester, and to the national grid, from 1929 to 1976. The generating station was built by the Stretford and District Electricity Board which it operated until the nationalisation of the British electricity supply industry in 1948. The 60 megawatt coal-fired station was supplemented in 1952 with an experimental 15 megawatt gas turbine generating set.
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