SWEB Energy, formerly South Western Electricity Board (SWEB) was a British state-owned regional electricity company operating in South West England which was privatised by the Thatcher government. Although sold many times, the 'SWEB' brand name survived until 2006.
The Central Electricity Generating Board (CEGB) was responsible for electricity generation, transmission and bulk sales in England and Wales from 1958 until privatisation of the electricity industry in the 1990s.
Northern Ireland Electricity Networks Limited (NIE Networks) is the electricity asset owner of the transmission and distribution infrastructure in Northern Ireland, established in 1993 when the business was privatised. NIE Networks does not generate or supply electricity. Since 2010 it has been a subsidiary of ESB Group.
Norweb, originally the North Western Electricity Board, was a British electricity supply and distribution company. It supplied electricity to about 4.7 million industrial, commercial and domestic customers in the North West of England, although Merseyside and parts of Cheshire were instead covered by Manweb.
PPL Corporation is an energy company headquartered in Allentown, Pennsylvania in the Lehigh Valley region of eastern Pennsylvania. The company is publicly traded on the New York Stock Exchange as NYSE: PPL and is part of the S&P 500. As of 2022, the company had $7.9 billion in revenue, 6,500 employees, over $37 billion in assets, and serves 3.6 million customers.
National Power was an energy company based in the United Kingdom.
National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in the United Kingdom, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York and Massachusetts.
Public electricity suppliers (PES) were the fourteen electricity companies created in Great Britain when the electricity market in the United Kingdom was privatised following the Electricity Act 1989. The Utilities Act 2000 subsequently split these companies between distribution network operators and separate supply companies.
Hyder was a Welsh water, gas and electricity multi-utility and infrastructure company created in 1996. It broke up in 2001 following a financial crisis.
Western Power Distribution is a trade name formerly used by four electricity distribution companies in the United Kingdom: WPD South West, WPD South Wales and WPD Midlands. Each company was the distribution network operator for its respective region. Western Power Distribution, which had headquarters in Bristol, served approximately 7.7 million customers in its combined distribution areas. In 2022 the company was absorbed into its new parent company, National Grid.
SWALEC was an electricity supply and distribution company in South Wales, established in 1989 following the de-regulation of the electricity supply industry in the United Kingdom. The business has seen several changes of ownership from 1996, and the SWALEC brand has been used for retail gas supply as well as electricity. Today Western Power Distribution runs the distribution network business, and SWALEC Contracting is a trading name of OVO Energy. The name SWALEC is a syllabic acronym of 'South Wales Electricity'.
The East Midlands Electricity Board (EMEB) was formed in 1947 as one of the United Kingdom's twelve area electricity boards specified under the Electricity Act 1947. In 1990 it was floated on the stock market as East Midlands Electricity plc, which went through several changes of ownership.
E.ON UK is a British energy company and one of the largest suppliers of energy in the UK, following its acquisition of Npower. It is a subsidiary of E.ON of Germany and one of the Big Six energy suppliers. It was founded in 1989 as Powergen, and was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index. It has been a subsidiary of E.ON since 1 July 2002.
Southern Electric plc was a public limited energy company in the United Kingdom between 1990 and 1998, when it merged with Scottish Hydro-Electric plc to form Scottish and Southern Energy plc. The company had its origins in the southern England region of the British nationalised electricity industry. Created in 1948 as the Southern Electricity Board, in 1990 it was privatised by being floated on the London Stock Exchange.
Yorkshire Electricity was an electricity distribution utility in England, serving much of Yorkshire and parts of Derbyshire, Lincolnshire and Nottinghamshire.
Eastern Electricity plc was an electricity supply and distribution utility serving Eastern England, including East Anglia and part of Greater London. It was renamed Eastern Group under which name it was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index until it was acquired by Hanson plc in 1995, before being purchased by Texas Utilities in 1998.
Seeboard, formerly South Eastern Electricity Board (SEEB), was a British electricity company. The electrical power industry in the United Kingdom was nationalised by the Electricity Act 1947, when over 600 electric power companies were merged into 12 area boards, one of which was the South Eastern Electricity Board. It acquired the former Princes Hotel on the seafront in Hove, East Sussex, and converted it into its headquarters. The building was refurbished and substantially extended between 1979 and 1981.
The London Electricity Board was the public sector utility company responsible for the supply and distribution of electricity to domestic, commercial and industrial consumers in London prior to 1990. It also sold and made available for hire and hire-purchase domestic electrical appliances through local showrooms where electricity bills could also be paid. It was shortened to LEB in its green and blue logo, consisting of the three letters. As London Electricity plc it was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index.
Npower Limited was a British supplier of gas and electricity to businesses. It has been a subsidiary of E.ON UK since January 2019. The company was formerly known as Innogy plc and was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.
SSE plc is a multinational energy company headquartered in Perth, Scotland. It is listed on the London Stock Exchange, and is a constituent of the FTSE 100 Index. SSE operates in the United Kingdom and Ireland.
