Wallasey power station

Wallasey power station supplied electricity to the town of Wallasey and the surrounding area from 1897. It was owned and operated by Wallasey Corporation until the nationalisation of the British electricity supply industry in 1948.  The power station was redeveloped several times: including the incorporation of new plant in the 1920s and 1950. The station was decommissioned in the late 1960s.

Wallasey power station
CountryEngland
LocationWallasey
Coordinates53°24′29″N 03°02′45″W
StatusDecommissioned and demolished
Commission date1897
Decommission date1960s
Owner(s)Wallasey Corporation
(1897–1948)
British Electricity Authority
(1948–1955)
Central Electricity Authority
(1955–1957)
Central Electricity Generating Board
(1958–1970)
Operator(s)By owner
Thermal power station
Primary fuelCoal
Secondary fuelFuel oil
Turbine technologySteam turbines
Cooling towersNone
Cooling sourceEstuary water
Power generation
Units operational2 x 5 MW, 1 x 12.5 MW
Make and modelBrush Ljungstrom, English Electric
Nameplate capacity22.5 MW
Annual net output37,250 MWh (1946)

History

In 1896 Wallasey Urban District Council were granted a license to supply electricity. The following year the council applied for a Provisional Order under the Electric Lighting Acts to generate and supply electricity to the town. This was granted by the Board of Trade and was confirmed by Parliament through the Electric Lighting Orders Confirmation (No. 6) Act 1897 (60 & 61 Vict. c. lxvi).[1] The power station first supplied electricity on 1 February 1897.[2]

In 1913 the Wallasey electricity committee noted that the demand for power was greater than the supply available. It proposed that a power station should be built in Limekiln Lane Poulton (53°24'29"N 3°02'45"W) at a cost of £60,000 to £65,000.[3]

Equipment specification

The original plant at Wallasey comprised vertical compound engines coupled directly to Ferranti flywheel alternators. In 1898 the generating capacity was 150 kW, with 1,200 kW ready for installation, and 1,300 kW was on order.[2]

Post-war plant

Following the First World War new plant was installed to meet growing demand for electricity. This included 5 MW installed in 1923, 5 MW in 1925 and 12.5 MW in 1928.[4] In 1923 the generating plant comprised:[5]

  • Coal-fired boilers generating up to 109,000 lb/h (13.7 kg/s) of steam, this was supplied to:
  • Generators
    • 1 × 1,000 kW steam turbo-alternator
    • 2 × 3,000 kW steam turbo-alternators
    • 1 × 5,000 kW steam turbo-alternator

These machines gave a total generating capacity of 12,000 kW of alternating current.[5]

A variety of electricity supplies were available to consumers as:[5]

  • single phase, 50 Hz AC at 100 and 200 Volts
  • 3-phase, 50 Hz AC at 6,000 and 400 Volts
  • 500 V direct current (DC) for traction

Plant in 1955

In 1950 a 12.5 MW Parsons turbo-alternator from Percival Lane power station was installed. At Wallasey power station. The plant in 1955 comprised:[4]

  • Boilers:
    • 3 × Babcock & Wilcox boilers with stoker firing, each 95,000 lb/h (11.96 kg/s), steam conditions 200 psi and 588°F (13.8 bar, 309°C),
    • 2 × Simon Carves boilers, pulverised fuel, each 110,000 lb/h (13.9 kg/s), steam conditions 300 psi and 650°F (20.7 bar, 343°C),
    • 1 × Yarrow oil fired boiler, 85,000 lb/h (10.7 kg/s), steam conditions 200 psi and 700°F (13.8 bar, 371°C), commissioned in October 1954.
  • The boilers had a total evaporative capacity of 290,000 lb/h (36.5 kg/s), and supplied steam to:[4]
  • Turbo-alternators:
    • 2 × Brush-Ljungstrom 5 MW turbo-alternators, generating at 6.6 kV
    • 1 × English Electric Parsons 12.5 MW, turbo-alternator, generating at 6.6 kV.

The total installed generating capacity was 22.5 MW, with an output capacity of 21 MW.[4]

Condenser cooling water was drawn from the adjacent dock.[4]

Operations

In 1898 there were 6,040 (8-candle power) lamps connected to the system.[2]

Operating data 1921–23

The operating data for the period 1921–23 is given in the table:[5]

Wallasey power station operating data 1921–23
Electricity Use Units Year
1921 1922 1923
Lighting and domestic use MWh 1,943 2,081 2,536
Public lighting use MWh 25 25 25
Traction MWh 2,446 2,493 2,293
Power use MWh 4,480 5,791 7,382
Bulk supply MWh 0 0 367
Total use MWh 8,894 10,391 12,603
Load and connected load
Maximum load kW 3311 4374 5250
Total connections kW 6877 7402 8756
Load factor Per cent 33.9 30.0 31.0
Financial
Revenue from sales of current £ – 94,461 98,667
Surplus of revenue over expenses £ – 23,829 46,091

Under the terms of the Electricity (Supply) Act 1926 (16 & 17 Geo. 5 c. 51)[6] the Central Electricity Board (CEB) was established in 1926.[7] 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.[7]

Operating data 1946

Wallasey power station operating data in 1946 is as follows:[8]

Wallasey power station operating data in 1946
Year Load factor per cent Max output load MW Electricity supplied MWh Thermal efficiency per cent
1946 48.0 17,850 37,250 15.12

The British electricity supply industry was nationalised in 1948 under the provisions of the Electricity Act 1947 (10 & 11 Geo. 6 c. 54).[9] The Wallasey electricity undertaking was abolished, ownership of Wallasey 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 Wallasey electricity undertaking were transferred to the North Western Electricity Board (NORWEB).

Operating data 1954–67

Operating data for the period 1954–67 is shown in the table:[4] [10]

Wallasey power station operating data, 1954–67
Year Running hours or load factor (per cent) Max output capacity  MW Electricity supplied GWh Thermal efficiency per cent
1954 3010 17 23.620 14.34
1955 3235 21 30.478 15.43
1956 2713 21 21.368 15.37
1957 594 21 4.501 11.72
1958 1555 21 11.430 13.79
1961 (2.3 %) 21 4.233 11.98
1962 (3.2 %) 21 5.901 12.73
1963 (4.72 %) 21 8.686 12.62
1967 (8.2 %) 16 11.496 13.65

Closure

Wallasey power station was decommissioned in the late 1960s.[11] The buildings were subsequently demolished and the area is derelict (in 2020).

See also

References
  1. "Local Acts 1897". Legislation.gov.uk. Retrieved 15 October 2020.
  2. Garcke, Emile (1898). Manual of Electrical Undertakings 1898-99 vol. 3. London: P. S. King and Son. p. 331.
  3. "Wallasey electricity supply". The Times. 19 February 1913. p. 23.
  4. Garrett, Frederick (1959). Garcke's Manual of Electricity Supply vol. 56. London: Electrical Press. pp. A-104, A-137.
  5. Electricity Commissioners (1925). Electricity Supply – 1920–23. London: HMSO. pp. 94–97, 326–331.
  6. "Electricity (Supply) Act 1926". Legislation.gov.uk. Retrieved 15 October 2020.
  7. Electricity Council (1987). Electricity supply in the United Kingdom: a Chronology. London: Electricity Council. pp. 45, 60, 69, 73. ISBN 085188105X.
  8. Electricity Commissioners (1947). Generation of Electricity in Great Britain year ended 31 December 1946. London: HMSO. p. 14.
  9. "Electricity Act 1947". Legislation.gov.uk. Retrieved 15 October 2020.
  10. CEGB Annual report and Accounts, 1961, 1962 & 1963
  11. Wallasey is mentioned in the CEGB Statistical Yearbook for 1967 but is not in the CEGB Statistical Yearbook 1972
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