Keadby Power Stations

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Keadby Power Station
Keadby power station.jpg
Keadby gas-fired power station in 2006
Keadby Power Stations
Country England
Location North Lincolnshire, Yorkshire and the Humber
Coordinates 53°35′40″N0°45′02″W / 53.594444°N 0.750442°W / 53.594444; -0.750442
Construction beganCoal-fired: 1948
Commission date Coal-fired: 1952
Gas-fired: 1996
Decommission dateCoal-fired: 1984
Owner(s) SSE plc
Operator(s) SSE Thermal
Thermal power station
Primary fuel Natural gas
Tertiary fuel Coal
External links
Commons Related media on Commons
[ edit on Wikidata]

grid reference SE828116

Keadby Power Stations are a pair of natural gas-fired power stations near Scunthorpe in North Lincolnshire, built on the site of an older coal power station. The site lies near the B1392 and the River Trent, and the Scunthorpe-Grimsby railway. Also nearby is the Stainforth and Keadby Canal, which is part of the Sheffield and South Yorkshire Navigation. The current stations are operated by SSE Thermal.

Contents

SSE also owns a 68 MWe capacity wind farm, Keadby Wind Farm, nearby. This was England's largest onshore wind farm, and started operating in July 2014. [1] [2]

Keadby Gas Power Station

Keadby Gas Power Station was commissioned on 22 January 1996, and was opened by Scottish Hydro Electric and NORWEB when the site was in South Humberside. Scottish Hydro bought the 50% share of Keadby Generation Ltd, then owned by United Utilities, in March 1997 for £253 million. It is now owned by Scottish and Southern Energy.

In March 2013 the power station was 'deep mothballed' in response to adverse market conditions; it reopened in December 2015 after winning a stand-by contract to provide 734 MWe of capacity. [3] [4] [5]

It is a CCGT type power station running on natural gas. There are two General Electric Frame 9FA gas turbines each rated at 250 MWe. The total thermal input is 1329 MW. Each gas turbine is connected to a heat recovery steam generator which connect to one steam turbine which has an output of 260 MWe. Steam is condensed using water from the River Trent. There is a 25 MWe 11 kV gas turbine available for black starts when there is no power to start producing electricity. The station connects to the National Grid at 400 kV, being used for baseload.

Keadby 2

In 1999, Scottish Hydro applied to add another 710 MWe of capacity at Keadby, and a variation to this consent was granted in November 2016. The project, called 'Keadby 2', was announced in May 2018. [6]

Construction on the plant, now rated at 893 MWe, began in August 2018. [7] The station was planned to come online in October 2022, but this date was missed, with the plant coming online in February 2023. [8] As of 2024, Keadby 2 at 849 MW is the biggest combined cycle powerplant in the world, and the most efficient at 64%. [9] [10]

Keadby Three

In December 2022, development consent was obtained for a third plant on the Keadby site. Keadby Three is planned to be a 910 MWe plant with carbon capture and storage, with opening planned as soon as 2027. [11]

Keadby coal-fired station

The first power station on the site was authorised in 1947 and work on the foundations began in July 1948. It was designed to have a total capacity of 360 MW. [12]

The plant comprised six Stirling radiant type, pulverised fuel, twin furnace boilers. Each boiler had an evaporation capacity of 550,000 lb/hr (69.3 kg/s) of steam, the total evaporative capacity of the completed station was 3,300,000 lb/hr (415.8 kg/s). Steam conditions were 925 psi and 915 °F (63.8 bar and 490.6 °C). [12]

There were six Parsons 60 MW hydrogen cooled turbo-alternators, generating at 11 kV. The first set was commissioned in April 1952, followed by the other sets in November 1952, June 1953, June 1954, December 1954 and December 1955. [12] In 1952 the boiler associated with the first set was the largest yet commissioned in the UK. [13]

The generating capacity and electricity output from Keadby power station is given in the following table. [12] [14] [15] [16]

Keadby generating capacity and output
195419551956195719581961196219631967197119791982
Installed capacity, MW168280336336336378378378360360360360
Electricity output, GWh771.611330.661990.752144.092258.402369.132252.1962052.9252031.01186.19970.29431.18

The coal-fired station closed in 1984.

See also

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References

  1. ↑ "SSE hungry for more at Keadby". reNEWS. 17 July 2014. Archived from the original on 16 January 2016. Retrieved 14 November 2015.
  2. ↑ "SSE Renewables, the renewable energy development division of SSE, acquired the Keadby wind farm project in North Lincolnshire in May 2011". SSE. Archived from the original on 9 April 2014. Retrieved 14 November 2015.
  3. ↑ "SSE Announces Reopening of Keadby Gas Fired Power Station". SSE. 20 October 2015. Archived from the original on 23 October 2015. Retrieved 8 May 2017.
  4. ↑ "SSE cranks up mothballed Keadby gas-fired power station as winter back-up for UK renewable energy". Scottish Energy News. 21 October 2015. Retrieved 14 November 2015.
  5. ↑ "Keadby Power Station". SSE. Archived from the original on 11 February 2016. Retrieved 14 November 2015.
  6. ↑ "On 25 May 2018, SSE announced its decision to proceed with the construction of a new 840MW Combined Cycle Gas Turbine (CCGT) power station at Keadby 2". SSE. Archived from the original on 16 August 2018. Retrieved 11 August 2018.
  7. ↑ "Keadby2 Power Station". siemens-energy.com Global Website. Retrieved 2023-02-26.
  8. ↑ Laister, David (2023-01-20). "SSE gives update on Keadby Two Power Station delay". Business Live. Retrieved 2023-02-26.
  9. ↑ Largue, Pamela (20 June 2024). "Siemens Energy sets world records at UK's Keadby 2 Power Station". Power Engineering International.
  10. ↑ "Most efficient combined cycle power plant". Guinness World Records. 21 May 2024.
  11. ↑ Laister, David (2022-12-08). "Humber carbon capture power station given go-ahead". Business Live. Retrieved 2023-02-26.
  12. 1 2 3 4 Garrett, Frederick C., ed. (1959). Garcke's Manual of Electricity Supply. London: Electrical Press. pp. A-66–67, A-124.
  13. ↑ Electricity Council (1987). Electricity Supply in the United Kingdom: a Chronology. London: Electricity Council. p. 66. ISBN   085188105X.
  14. ↑ CEGB (1972). CEGB Statistical Yearbook 1972. London: CEGB. p. 15.
  15. ↑ CEGB (1982). CEGB Statistical Yearbook 1981-82. London: CEGB. p. 8. ISBN   0902543695.
  16. ↑ CEGB Annual report and Accounts, 1961, 1962 & 1963
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