Thanet power station

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Thanet power station
Thanet power station
CountryEngland
LocationSt Peter's Broadstairs, Kent
Coordinates 51°22′12″N01°25′09″E / 51.37000°N 1.41917°E / 51.37000; 1.41917
StatusDecommissioned
Construction began1900
Commission date 1901
Decommission date1964
Owner(s)The Isle of Thanet Electric Tramways and Lighting Company Limited
(1901–1924)
Isle of Thanet Electric Supply Company Limited
(1924–1948)
British Electricity Authority
(1948–1955)
Central Electricity Authority
(1955–1957)
Central Electricity Generating Board
(1958–1964)
Operator(s)As owner
Thermal power station
Primary fuelCoal
Turbine technologySteam turbines
Cooling towers3
Power generation
Units operational1 x 1 MW, 1 x 2 MW, 1 x 3 MW
Make and modelBritish Thomson-Houston
Nameplate capacity 6 MW
Annual net output 2,746 MWh (1923)
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Thanet power station, also known as St. Peter's power station, supplied electricity to the towns of Broadstairs and Margate and other locations on the Isle of Thanet, Kent, England from 1901 to 1964. The station was owned and operated by the Isle of Thanet Electric Supply Company Limited until the nationalisation of the British electricity supply industry in 1948. The coal-fired power station had an ultimate electricity generating capacity of 6 MW.

Contents

History

The Isle of Thanet Electric Tramways and Lighting Company Limited applied for a Provisional Order under the Electric Lighting Acts to generate and supply electricity for the tram system and to the local area. This was granted by the Board of Trade and was confirmed by Parliament through the Electric Lighting Orders Confirmation (No.7) Act 1901 (1 Edw. 7  c. clxxiv). [1] The company built the power station (51°22'12"N 01°25'09"E) [2] in St. Peter's adjacent to the South Eastern and Chatham Railway and in conjunction with the tramway depot.

From the inauguration of the Isle of Thanet Electric Tramways on 4 April 1901 the power station supplied electric current to the tram system. [3] The trams were decommissioned on 27 March 1937, but the power station continued in operation supplying the area with electric current.

New plant was installed and the output of the power station was uprated to meet the increased demand over the period 1914 to 1926. [4]

In 1924 The Isle of Thanet Electric Tramways and Lighting Company Limited changed its name to Isle of Thanet Electric Supply Company Limited. [5] This better reflected the scope of its operations.

The British electricity supply industry was nationalised in 1948 under the provisions of the Electricity Act 1947 (10 & 11 Geo. 6 c. 54). [6] The Isle of Thanet electricity undertaking was abolished, ownership of the power station was vested in the British Electricity Authority, and subsequently the Central Electricity Authority and the Central Electricity Generating Board (CEGB). [7] At the same time the electricity distribution and sales responsibilities of the Isle of Thanet electricity undertaking were transferred to the South Eastern Electricity Board (SEEBOARD).

Thanet power station was decommissioned in 1964; superseded by 336 MW Richborough power station initially commissioned in 1962–3. This itself closed in 1996 and the site cleared by 2016. [8]

Equipment specification

Plant in 1923

By 1923 the generating plant comprised: [9]

These machines gave a total generating capacity of 4,200 kW, comprising 3,800 kW of alternating current and 400 kW of direct current. [9]

Electricity supplies available to consumers:

Coal was delivered to the power station by a siding off the adjacent railway line. [2]

Plant in 1954

By 1954 the plant comprised:

Cooling of the condensers was by two Davenport cooling towers with a total water circulation of 448,000 gallons per hour (0.566 m3/s).

Operations

Operating data 1921–23

The electricity supply data for the period 1921–23 was: [9]

Thanet power station supply data 1921–23
Electricity UseUnitsYear
192119221923
Lighting and domesticMWh7631,0051,292
Public lightingMWh243346
TractionMWh9771,0111,092
PowerMWh219261269
Bulk supplyMWh0047
Total useMWh1,9842,3112,746

Electricity Loads on the system were:

Year192119221923
Maximum loadkW1,7581,9402,220
Total connectionskW5,4405,8776,368
Load factorPer cent19.920.722.1

Revenue from the sale of current (in 1923) was £38,214; the surplus of revenue over expenses was £19,401. [9]

Operating data 1946

In 1946 Thanet power station supplied 1,395 MWh of electricity; the maximum output load was 2,945 kW. [10]

Operating data 1954–63

Operating data for the period 1954–63 was: [4] [11]

Thanet power station operating data, 1954–63
YearRunning hours
or load factor (per cent)		Max output
capacity (MW)		Electricity
supplied (MWh)		Thermal
efficiency
195485141,8787.59%
195575541,7317.21%
195670241,5076.24%
195770641,6416.84%
195850541,0907.08%
19617.0%42,4666.54%
19621.1%43794.99%
19633.68%41,2986.19%

See also

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References

  1. ↑ "Local Act 1901". legislation.gov.uk. Retrieved 16 December 2020.
  2. 1 2 Ordnance Survey 6-inch England Kent XXVI.SW (includes: Broadstairs and St Peters.), revised 1905, published 1908
  3. ↑ Klapper, Charles F. (1962). The Golden Age of Tramways. Routledge and Kegan Paul.
  4. 1 2 Garrett, Frederick (1959). Garcke's Manual of Electricity Supply vol. 56. London: Electrical Press. pp. A-99, A-136.
  5. ↑ "Isle of Thanet Electric". The Times. 7 June 1924. p. 19.
  6. ↑ "Electricity Act 1947". legislation.gov.uk.
  7. ↑ Electricity Council (1987). Electricity supply in the United Kingdom: a Chronology. London: Electricity Council. pp. 60–61. ISBN   085188105X.
  8. ↑ The station is included in the CEGB Annual Report 1963 but is not mentioned in the CEGB Statistical Yearbook for 1965-6
  9. 1 2 3 4 Electricity Commissioners (1925). Electricity Supply – 1920–23. London: HMSO. pp. 168–71, 430–35.
  10. ↑ Electricity Commissioners (1947). Generation of Electricity in Great Britain year ended 31 December 1946. London: HMSO. p. 11.
  11. ↑ CEGB Annual Report 1961, 1962, 1963
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