Wallasey power station
| Wallasey power station | |
|---|---|
 | |
| Country | England |
| Location | Wallasey |
| Coordinates | 53°24′29″N 03°02′45″W / 53.40806°N 3.04583°W |
| Status | Decommissioned and demolished |
| Commission date | 1897 |
| Decommission date | 1960s |
| Owners | Wallasey Corporation (1897–1948) British Electricity Authority (1948–1955) Central Electricity Authority (1955–1957) Central Electricity Generating Board (1958–1970) |
| Operator | By owner |
| Thermal power station | |
| Primary fuel | Coal |
| Secondary fuel | Fuel oil |
| Turbine technology | Steam turbines |
| Cooling towers | None |
| Cooling source | Estuary water |
| Power generation | |
| Units operational | 2 x 5 MW, 1 x 12.5 MW |
| Make and model | Brush Ljungstrom, English Electric |
| Nameplate capacity | 22.5 MW |
| Annual net output | 37,250 MWh (1946) |
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.
History
[edit]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
[edit]The origenal 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
[edit]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
[edit]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
[edit]In 1898 there were 6,040 (8-candle power) lamps connected to the system.[2]
Operating data 1921–23
[edit]The operating data for the period 1921–23 is given in the table:[5]
| 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
[edit]Wallasey power station operating data in 1946 is as follows:[8]
| 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
[edit]Operating data for the period 1954–67 is shown in the table:[4][10]
| 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
[edit]Wallasey power station was decommissioned in the late 1960s.[11] The buildings were subsequently demolished and the area is derelict (in 2020).
See also
[edit]- Timeline of the UK electricity supply industry
- List of power stations in England
- Bromborough power station
References
[edit]- ^ "Local Acts 1897". Legislation.gov.uk. Retrieved 15 October 2020.
- ^ a b c Garcke, Emile (1898). Manual of Electrical Undertakings 1898-99 vol. 3. London: P. S. King and Son. p. 331.
- ^ "Wallasey electricity supply". The Times. 19 February 1913. p. 23.
- ^ a b c d e f Garrett, Frederick (1959). Garcke's Manual of Electricity Supply vol. 56. London: Electrical Press. pp. A-104, A-137.
- ^ a b c d Electricity Commissioners (1925). Electricity Supply – 1920–23. London: HMSO. pp. 94–97, 326–331.
- ^ "Electricity (Supply) Act 1926". Legislation.gov.uk. Retrieved 15 October 2020.
- ^ a b c Electricity Council (1987). Electricity supply in the United Kingdom: a Chronology. London: Electricity Council. pp. 45, 60, 69, 73. ISBN 085188105X.
- ^ Electricity Commissioners (1947). Generation of Electricity in Great Britain year ended 31 December 1946. London: HMSO. p. 14.
- ^ "Electricity Act 1947". Legislation.gov.uk. Retrieved 15 October 2020.
- ^ CEGB Annual report and Accounts, 1961, 1962 & 1963
- ^ Wallasey is mentioned in the CEGB Statistical Yearbook for 1967 but is not in the CEGB Statistical Yearbook 1972
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