The company originated as the Southern Electricity Board, created in 1948 as part of the
nationalisation of the electricity industry by the
Electricity Act 1947. The board's assets passed in 1990 to Southern Electric plc, one of the fourteen
public electricity suppliers, and that company was privatised in the same year. In 1998 the company merged with
Scottish Hydro-Electric plc and became part of
Scottish and Southern Energy. SSE used the "Southern Electric" name and logo for a time as a brand name for retail distribution of gas and electricity in the south of England, before replacing it with SSE branding. Following the purchase of SSE's retail business by
OVO Energy in 2020, the Southern Electric brand is a trading name of OVO Electricity Limited.
Southern Electricity Board The key people on the board were: Chairman Henry Nimmo (1948–54), Chairman R.R.B. Brown (1964, 1967), Deputy Chairman W.B. Poulter (1964, 1967), full-time member A. W. Bunch (1967). The number of customers supplied by the board was: The amount of electricity, in GWh, sold by the Southern Electricity Board over its operational life was:
Local authorities • Aldershot Corporation • Basingstoke Corporation • Bournemouth Corporation • Brentford and Chiswick Corporation • Calne Corporation • Chichester Corporation • Dorchester Corporation • Ealing Corporation • Fareham Urban District Council • Heston Isleworth Corporation • High Wycombe Corporation • Maidenhead Corporation • Marlborough Corporation • Oxford Corporation • Portland Urban District Council • Portsmouth Corporation • Reading Corporation • Southampton Corporation • Swindon Corporation • Weymouth Melcombe Regis Corporation • Winchester Corporation • Witney Urban District Council
Private companies • Alton District Electricity Company • Ascot District Gas and Electricity Company • Blandford Forum and District Electric Supply Company • Bognor and District Gas and Electricity Company • Bournemouth and Poole Electricity Supply Company • Brentford Electric Supply Company • Burford Electric Light Power Company • Egham and Staines Electricity Company • Farnham Gas and Electricity Company • Isle of Wight Electric Light and Power Company • Metropolitan Electric Supply Company • Mid Southern Utility Company • Milford-on-Sea Electric Supply Company • Milton and Barton-on-Sea (Hants.) Electricity Supply Company • Petersfield Electric Light and Power Company • Ringwood Electric Supply Company •
Salisbury Electric Light and Supply Company • Slough and Datchet Electric Supply Company • Uxbridge and District Electric Supply Company •
Wessex Electricity Company • West Hampshire Electricity Company • Whitchurch (Hants.) Gas and Electricity Company • Wilton Electricity Supply Company • Windsor Electrical Installation Company • Woodstock and District Electrical Distribution Company •
Yorktown (Camberley) and District Gas and Electricity Company ==Operations==