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.
Centrica plc is a British multinational energy and services company with its headquarters in Windsor, Berkshire. Its principal activity is the supply of electricity and gas to consumers in the United Kingdom and Ireland.
The Office of Gas and Electricity Markets (Ofgem), supporting the Gas and Electricity Markets Authority, is the government regulator for the electricity and downstream natural gas markets in Great Britain. It was formed by the merger of the Office of Electricity Regulation (OFFER) and Office of Gas Supply (Ofgas).
Electricity provider switching is the ability of power consumers to have an option to choose their electricity provider in a deregulated electricity market as permitted by a state public utilities governing body.
Good Energy Group PLC is a British energy company based in Chippenham, Wiltshire that provides services in the electrification of transport and decentralised renewable energy generation such as domestic solar panels. The company is also an energy retailer, and built a portfolio of wind and solar generation which was sold in 2022. Founded by Juliet Davenport, its CEO is Nigel Pocklington.
The energy policy of the United Kingdom refers to the United Kingdom's efforts towards reducing energy intensity, reducing energy poverty, and maintaining energy supply reliability. The United Kingdom has had success in this, though energy intensity remains high. There is an ambitious goal to reduce carbon dioxide emissions in future years, but it is unclear whether the programmes in place are sufficient to achieve this objective. Regarding energy self-sufficiency, UK policy does not address this issue, other than to concede historic energy security is currently ceasing to exist.
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.
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.
Energy switching services are companies that have come to exist since the EU began deregulating the gas and electricity markets, to open them to competition, in 1996. Progress has been uneven across member countries, but in the UK there is now open competition among suppliers. Pricing structures and special offers are often complicated enough that it's not obvious which supplier and tariff will be best value for a consumer. This has provided an opportunity for specialist price comparison services. These are chiefly offered by companies who will manage a change to a different supplier and tariff, as well as advising on the best one. These companies primarily operate over the Web, although some also offer a telephone service.
Houseful Limited is a British residential property software, data, and insight company based in London, England, owned by Silver Lake Partners.
The New National Consumer Council, operating as Consumer Futures, was a non-departmental public body and statutory consumer organisation in England, Wales, Scotland, and, for postal services, Northern Ireland. It was established by the Consumers, Estate Agents and Redress Act 2007, and began operations in 2008 by the merging of Postwatch, Energywatch and the Welsh, Scottish and National Consumer Councils under the Consumer Focus brand.
OVO Energy is a major energy supplier based in Bristol, England.
Shell Energy Retail Limited was a British consumer gas, electricity and broadband provider. Formerly a subsidiary of Shell, the business was acquired by Octopus Energy in December 2023.
100Green, operating as Green Energy (UK) Ltd, is a British independent-energy company based in Ware, Hertfordshire. It was established in 2001 by CEO Douglas Stewart. The company provides Ofgem-certified renewable electricity and green gas to domestic and business customers throughout Great Britain. It is currently the only energy supplier in the UK to offer 100% green gas.
The Utilities Intermediaries Association (UIA) is a trade body for Third Party Intermediaries (TPIs) in the United Kingdom business energy sector. TPIs, also known as energy brokers or consultants, facilitate the purchasing of electricity and gas by businesses, providing a range of services such as procurement, switching suppliers, query resolution, bill checking, and energy management in exchange for fees. The UIA works with the various organisations involved in the UK energy industry, with the aim of improving consumer confidence when purchasing energy.
The Electricity Act 1989 provided for the privatisation of the electricity supply industry in Great Britain, by replacing the Central Electricity Generating Board in England and Wales and by restructuring the South of Scotland Electricity Board and the North of Scotland Hydro-Electric Board. The Act also established a licensing regime and a regulator for the industry called the Office of Electricity Regulation (OFFER), which has since become the Office of Gas and Electricity Markets (OFGEM).
The Big Six were the United Kingdom's largest retail suppliers of gas and electricity, who dominated the market following liberalisation in the late 1990s. By 2002, six companies – British Gas, EDF Energy, E.ON, RWE npower, Scottish Power and SSE – had emerged from the 15 former incumbent monopoly suppliers.
Spark Energy was an electricity and gas supplier in the United Kingdom, established in 2007 and headquartered in Selkirk, Scottish Borders. Its operating company Spark Energy Supply Ltd entered administration in November 2018, and industry regulator Ofgem appointed OVO Energy to take over Spark Energy's 290,000 customer accounts; OVO continues to run Spark as a separate brand, but is in the process of migrating all its customers to the SSE brand.
Collective Switching is where customers negotiate a group deal with a utility service such as gas or electricity. This is popular in the United Kingdom, Australia, the Netherlands, and Ireland. In the UK, collective switching has always been managed by a third party, which gathers the consumers together into a grouping via a registration or membership model and then takes their collective demand to the supply base and obtains from a supplier preferential or bespoke rates for that group of consumers.
Bulb Energy Ltd., trading as Bulb, was an energy supply company in the United Kingdom acquired by Octopus Energy in 2022. Founded in 2013, the company attracted venture capital from DST Global and Magnetar Capital and ran at a financial loss while achieving rapid growth in customers. Bulb claimed to provide electricity and gas from renewable or off-set sources. As of November 2021, it had a share of approximately 5-6% of the UK energy market and was considered the seventh largest in the country.
