Haverfordwest power station

Haverfordwest power station supplied electricity to the town of Haverfordwest, Wales and the surrounding area from 1931 to the late 1960s. It was initially owned and operated by the West Cambrian Power Company Limited, then by the British Electricity Authority following nationalisation in 1948. It comprised diesel engines driving electricity alternators.

Haverfordwest power station
CountryWales
LocationHaverfordwest
Coordinates51°47′46″N 04°58′29″W
StatusDecommissioned
Commission date1931
Decommission dateLate 1960s
Owner(s)West Cambrian Power Company Limited
(1931–1948)
British Electricity Authority
(1948–1955)
Central Electricity Authority
(1955–1957)
Central Electricity Generating Board
(1958–1970)
Operator(s)As owner
Thermal power station
Primary fuelFuel oil
Power generation
Units operationalEight diesel engines
Make and modelsee text
Nameplate capacity8 MW
Annual net output13.83 GWh (1954)

History

Haverfordwest power station was commissioned in 1931 and further generating plant was added up to 1954.[1] The power station was owned and operated by the West Cambrian Power Company Limited which also owned the power stations at Lampeter, Llandysul and St. Clears.[2] The British electricity supply industry was nationalised in 1948, and the power company was abolished and ownership of Haverfordwest power station was vested in the British Electricity Authority. The power station was decommissioned in the late 1960s.[3]

Plant

The station finally comprised eight diesel engines driving alternators. The engines were by the following manufacturers:[1]

  • 3 × Fraser & Chalmers
  • 2 × Atlas
  • 1 × BPE
  • 2 × Crosley

Six of the alternators were by GEC and two were Brush, the range of generating capacities were:[1]

  • 2 × 1.2 MW
  • 2 × 1 MW
  • 1 × 1.05 MW
  • 1 × 0.575 MW
  • 2 × 1.2 MW

All the alternators generated current at 11 kV.

Operations

Operating data for the period 1946–67 was:[1][4]

Haverfordwest power station operating data, 1946–67
Year Running hours or load factor (per cent) Max output capacity  kW Electricity supplied MWh Thermal efficiency per cent
1946 (32.5 %) 4,120 4558 28.38
1954 5249 6,025 13,832 43.7
1955 3546 8,465 9,891 33.0
1956 1271 8,465 5,557 51.6
1957 784 8,465 3,128 47.11
1958 671 8,465 3,060 53.9
1961 (10.6 %) 8,000 7,399 27.52
1962 (3.8 %) 8,000 2,659 32.16
1963 (10.59 %) 7,000 7,423 31.00
1967 (28.2 %) 7,000 17,290 30.94

See also

References
  1. Garrett, Frederick (1959). Garcke's Manual of Electricity Supply vol. 56. London: Electrical Press. pp. A-62, A-142.
  2. Electricity Commissioners (1947). Generation of Electricity in Great Britain year ended 31 December 1946. London: HMSO. p. 15.
  3. Haverfordwest is mentioned in the CEGB Statistical Yearbook for 1967 but not in the 1972 edition
  4. CEGB Annual report and Accounts, 1961, 1962 & 1963
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