Lancaster power stations

The Lancaster power stations provided electricity to the Lancashire town and city of Lancaster and the surrounding area from 1894 to 1976. The first power station was built and operated by Lancaster Corporation and started generating electricity in April 1894. The second power station was built during the First World War near the Lune Aqueduct to provide electric power for a munitions factory. When the factory closed after the war the power station was purchased by the corporation to provide electric power throughout its supply area.

Lancaster power stations
CountryUnited Kingdom
LocationLancaster Lancashire
Coordinates54°04′03″N 02°47′19″W
StatusDecommissioned and demolished
Construction began1892, 1915
Commission date1894, 1916
Decommission date1976
Owner(s)Lancaster Corporation (1892–1948), (Ministry of Munitions, Cator Road (1916–21)), British Electricity Authority (1948–55), Central Electricity Authority (1955–57), Central Electricity Generating Board (1958–76)
Operator(s)As owner
Thermal power station
Primary fuelCoal
Turbine technologySteam turbine (and reciprocating engines prior to 1910)
Chimneys1
Cooling towersNone
Cooling sourceriver water
Power generation
Units operational2 × 20.8 MW (largest sets)
Make and modelMetropolitan Vickers
Units decommissionedAll
Nameplate capacity50.25 MW (1958)
Annual net output217.15 GWh (1963)

History

In 1890 Lancaster Corporation applied for, and the Board of Trade granted, a Provisional Order to generate and supply electricity to the town of Lancaster, Lancashire. This Order was confirmed by Parliament in the Electric Lighting Orders (No. 2) Act 1890 (54 & 55 Vict. c. clxxxvii).[1] The Corporation electricity undertaking constructed a power station with a generating capacity of 240 kW.[2] The generating equipment comprised steam driven Willans engines coupled directly to Brush direct current dynamos. The supply of electricity commenced on 14 April 1894. In the year ending March 1898 the station supplied a total of 147.175 MWh powering 12,256 lamps (each of 8 candle-power). The maximum load on the system was 190 kW.[2] A supply of electricity to the Lancaster tram system commenced in 1903.[3]

In 1912 the cost of coal had increased significantly, Lancaster Corporation claimed it had increased by 25 per cent since 1911, the Corporation investigated the possibility of using hydro-power from the River Lune to generate electricity.[4] Chester Corporation had recently installed a hydro-electric station on the River Dee. In 1923 the plant at Chester comprised 1 × 185 kW and 2 × 225 kW hydro-electric machines.[5] Nothing became of the proposal for Lancaster.

Caton Road station

At the outbreak of the First World War a National Projectile Factory was established off of Caton Road adjacent to the River Lune and the Lune Aqueduct.[6] Construction started in September 1915 and the factory was operational from November 1916. The 33 acre (13.3 hectare) site included an electricity generating station at the east end (54°04'02.6"N 2°47'19.0"W).[7][8] Cooling water for the steam condensers was abstracted from the River Lune. The munitions factory closed down in 1922 and Lancaster Corporation purchased the power station to increase the electricity supplies to Lancaster.[9]

By 1923 the steam plant at the station had a capacity of 26,000 lb/h (3.28 kg/s) and supplied steam to:[10]

  • 1 × 100 kW steam turbine driven generator
  • 2 × 225 kW steam turbine driven generators
  • 2 × 200 kW reciprocating engine driven generators
  • 2 × 300 kW steam turbines driven generator

These provided a total generating capacity of 1,550 kW.

The station supplied only direct current (DC) at 460 & 230 Volts. In 1923 the maximum load on the system was 910 kW, and there was a connected load of 3,122 kW.[10] The power was sold to the following users:[10]

Lancaster power electricity sold 1921–3
User Usage MWh
1921 1922 1923
Lighting and domestic 346.45 340.02 406.90
Public lighting 66.80 58.10 65.00
Traction 281.75 128.00 268.34
Power 365.31 539.76 413.07
Total 1060.3 1065.87 1153.31

Traction current was supplied to the Lancaster tramway system.

The sale of electricity provided an income to the Corporation of £21,747 in 1923. The surplus of revenue over expenses for generating electricity was £6,280.[10]

Low pressure station

The plant installed from the inauguration of the power station in 1916 until 1928 became known as the low pressure (LP) station and comprised:[11]

  • Boilers
    • 2 × Stirling 55,000 lb/h (6.93 kg/s) of steam, coal-fired boilers, supplying steam at 210 psi at 610 °F (14.5 bar at 321 °C)
    • 4 × Stirling 15,000 lb/h (1.89 kg/s) coal-fired boilers, 210 psi at 610 °F (14.5 bar at 321 °C)
  • These gave a total steam evaporative capacity of 170,000 lb/h (21.42 kg/s).
  • Generating plant
    • 1 × 5.0 MW Metropolitan Vickers turbo-alternator operating at 6.66 kV
    • 1 × 2.1 MW Metropolitan Vickers turbo-alternator operating at 6.66 kV
    • 1 × 1.1 MW Metropolitan Vickers turbo-alternator operating at 6.66 kV
    • 2 × 225 kW Greenwood & Batley turbo-generators operating at 460 V DC.

The power station had three railway sidings off the Settle Junction & Morecambe Line (London Midland and Scottish Railway) for the supply of coal to the station.[7][12]

National Grid

Under the terms of the Electricity (Supply) Act 1926[13] (16-17 Geo. 5 c. 51) the Central Electricity Board (CEB) was established.[14] The CEB identified high efficiency ‘selected’ power station that would supply electricity most effectively; Lancaster became a selected station. The CEB also constructed the national grid (1927–33) to connect power stations within a region. Lancaster was a node on the major North–South line from Kilmarnock in Scotland to Carlisle, Lancaster, Stoke-on-Trent, Bristol and Hayle Cornwall.[15] The connection in Lancaster was at a 132 kV grid substation that was built south east of the Caton Road power station.[16]

High pressure station

Demand for electricity increased – nationally from 9,169 GWh in 1930 to 24,263 GWh in 1940[15] – and a high pressure (HP) station was commissioned at Lancaster power station in 1942 and comprised:[11]

  • Boilers
    • 2 × 205,000 lb/h Stirling (2 × 25.83 kg/s) coal-fired boilers operating at a steam pressure of 430 psi and 830 °F (29.7 bar and 443 °C).
  • Generators
    • 2 × 20.8 MW Metropolitan Vickers turbo-alternators operating at 6.6 kV.

Nationalisation

Upon nationalisation of the British electricity supply industry in 1948 under the provisions of the Electricity Act 1947[17] (10-11 Geo. 6 c. 54), the Lancaster electricity undertaking was abolished, ownership of Lancaster 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 Lancaster electricity undertaking were transferred to the North Western Electricity Board (NORWEB).[17]

The total installed plant capacity at Lancaster power station in the mid-1950s was 50.25 MW.[11]

Operating details of the station were as follows:[11][18][19][20][21][22]

Lancaster power station operations 1954–72
Year Running hours (or load factor %) Output capacity MW Electricity supplied GWh Thermal efficiency %
1946 (54.0 %) 226.85 22.79
1954 6373 49 151.86 22.29
1955 5688 49 133.46 22.52
1956 5085 48 119.80 23.14
1957 4114 47 92.52 22.72
1958 4596 47 109.50 23.13
1961 32.6 % 47 134.22 23.31
1962 37.0 % 47 152.42 23.46
1963 52.74 % 47 217.15 23.79
1967 (45.9 %) 46 184.95 24.05
1972 31.6 % 39 108.16 23.58


In 1958 the Lancaster electricity district supplied an area of 235 square miles and a population of 104,220. The amount of electricity sold and the number and types of consumers was as follows:[11]

Year Electricity sold, MWh No. of consumers
1956 369,104 33,822
1957 380,810 34,660
1958 392,720 35,433

In 1958 the above totals were made up of the following:[11]

Type of Consumer No. of consumers Electricity sold, MWh
Domestic 29,857 57,950
Commercial 3,942 25,859
Combined premises 520 4,643
Farms 966 7,626
Industrial 138 293,912
Public lighting 9 1,416
Public traction 1 1,314
Total 35,433 392,710

Closure

Lancaster power station closed on 25 October 1976.[23] The buildings were subsequently demolished. The site is now occupied by commercial and industrial units.

The 132 kV substation to the east of the site remains operational.[16] The substation has a 132 kV connection to Heysham Nuclear power station.

See also

References
  1. "Chronological Table of Local Acts 1890". legislation.gov.uk. 1890. Retrieved 2 August 2020.
  2. Garcke, Emile (ed) (1898). Manual of Electrical Undertakings 1898-99 vol. 3. London: P. S. King and Son. pp. 229–31.CS1 maint: extra text: authors list (link)
  3. "Lancaster Trams". Tramway badges and buttons. Retrieved 2 August 2020.
  4. "Lancashire Electricity Supply". The Times. 25 September 1912. p. 19.
  5. Electricity Commissioners (1925). Electricity Supply – 1920–23. London: HMSO. pp. 22–23.
  6. Grace's Guide to British Industrial History (31 May 2017). "National Projectile Factories". Grace's Guide. Retrieved 2 August 2020.
  7. Britain from Above (1933). "Lancaster Power Station and the Lune Aqueduct, Lancaster, 1933". Britain from Above. Retrieved 2 August 2020.
  8. "Plan of National Projectile Factory, Caton Road, Lancaster circa 1917". kings own museum. 1917. Retrieved 2 August 2020.
  9. Royal Academy of Engineering (May 2016). "Living without electricity: one city's experience of coping with loss of power". Royal Academy of Engineering. Retrieved 2 August 2020.
  10. Electricity Commissioners (1925). Electricity Supply – 1920–23. London: HMSO. pp. 54–57, 290–295.
  11. Garrett, Frederick C. (ed) (1959). Garcke’s Manual of Electricity Supply vol. 56. London: Electrical Press. pp. A-69, A-125, B-182.CS1 maint: extra text: authors list (link)
  12. Ordnance Survey, 25 inch map Lancashire XXX.7 (Halton; Lancaster; Quernmore; Slyne With Hest), Revised: 1938, Published: 1939
  13. "Electricity Act 1926". legislation.gov.uk. 1926. Retrieved 2 August 2020.
  14. Electricity Council (1987). Electricity Council Electricity supply in the United Kingdom: a Chronology. London: Electricity Council. pp. 45, 60. ISBN 085188105X.
  15. Hannah, Leslie (1979). Electricity before Nationalisation. London: Macmillan. pp. 119, 428. ISBN 0333220862.
  16. Open Infrastructure Map. "Open Infrastructure Map". Open Infrastructure Map. Retrieved 2 August 2020.
  17. "Electricity Act 1947". legislation.gov.uk. 1947. Retrieved 2 August 2020.
  18. Central Electricity Generating Board, Annual Report and Accounts 1961, CEGB, London, 1961
  19. Central Electricity Generating Board, Annual Report and Accounts 1962, CEGB, London, 1962
  20. Central Electricity Generating Board, Annual Report and Accounts 1963, CEGB, London, 1963
  21. CEGB (1972). CEGB Statistical Yearbook 1972. London: CEGB. p. 17.
  22. Electricity Commission, Generation of Electricity in Great Britain year ended 31st December 1946. London: HMSO, 1947.
  23. Hansard, Written Answers, 16 January 1984 (volume  52) Coal-fired power stations
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.