Northern Electric was an electricity supply and distribution company serving north east England.
Scottish Power Limited, trading as ScottishPower, is a vertically integrated energy company based in Glasgow, Scotland. It is a subsidiary of Spanish utility firm Iberdrola.
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.
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.
Berkshire Hathaway Energy is a holding company and subsidiary of Berkshire Hathaway, which owns 92% of the company. Berkshire has owned a controlling stake since 1999. The company also controls power distribution companies in the United Kingdom and Canada. The remaining 8% is owned by the family of Walter Scott Jr.
The Midlands Electricity Board was the public sector utility company responsible for the purchase of electricity from the electricity generator and its distribution and sale of electricity to customers in the Midlands of England prior to 1990. As Midlands Electricity plc it was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index.
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.
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.
Innogy SE was an energy company based in Essen, Germany. It is now merged and integrated into German energy company E.ON.
Scottish Hydro plc was a public electricity supplier formed on 1 August 1989 after a change of name from North of Scotland Electricity plc on that date. It was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index but merged with Southern Electric in 1998.
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.
Electricity North West Limited is a British electricity distribution network operator, responsible for the administration and maintenance of the network, that distributes electricity to much of North West England.
Integrated Utility Services is a high voltage electrical contracting business owned by an electrical distribution company and is based in Yorkshire in England. It is owned by Northern Powergrid which is the distribution network operator for the North East England and Yorkshire regions.
Scottish and Southern Electricity Networks is one of two energy companies in the UK to be involved both in electricity transmission and distribution.
Storm Arwen was a powerful extratropical cyclone that was part of the 2021–22 European windstorm season. It affected the United Kingdom, Ireland and France, bringing strong winds and snow. Storm Arwen caused at least three fatalities and widespread power outages. Damage was exacerbated by the fact that the strong winds came unusually from the north.
