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{{Short description|United Kingdom government non-ministerial department}}
{{Use dmy dates|date=January 2017}}
{{Use British English|date=July 2015}}
{{Infobox government agency
| agency_name     = Office of Gas and Electricity Markets<br><small>{{langx|cy|Swyddfa’r Marchnadoedd Nwy a Thrydan}}</small>
| type            = [[Non-ministerial government department]]
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| logo            = Ofgem logo.svg
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| formed          = {{start date and age|2000|11|1|df=y}}
| preceding1      = Office of Electricity Regulation
| preceding2      = Office of Gas Supply
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| jurisdiction    = [[Great Britain]]
| headquarters    = 10 South Colonnade, [[Canary Wharf]], London, {{postcode|E|14}}
| region_code     = GB
| coordinates     = 
| employees       = 1,187
| budget          = For 2015–2016 Parliament approved through the Main Estimate a gross resource budget of £89.5 million<ref>{{citation|url=https://www.ofgem.gov.uk/system/files/docs/2016/06/ofgem_ara_2016_web.pdf |title=Ofgem Annual Report 2015–2016 |publisher=Office of Gas and Electricity Markets |date=15 June 2016 |access-date=15 December 2016}}</ref>
| minister1_name  = [[Ed Miliband]]
| minister1_pfo   = [[Secretary of State for Energy Security and Net Zero]]
| chief1_name     = [[Jonathan Brearley]]
| chief1_position = Chief Executive
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The '''Office of Gas and Electricity Markets''' ('''Ofgem''') is the [[government regulation|government regulator]] for the [[electricity]] and [[downstream (petroleum industry)|downstream]] [[natural gas]] markets in [[Great Britain]].<ref>{{Cite web |title=Our role and responsibilities |url=https://www.ofgem.gov.uk/about-us/our-role-and-responsibilities |access-date=2022-03-31 |website=Ofgem |language=en}}</ref> It was formed by the merger of the '''Office of Electricity Regulation''' ('''OFFER''') and '''Office of Gas Supply''' ('''Ofgas''').

Ofgem's governing body is the '''Gas and Electricity Markets Authority (GEMA)''', which is also referred to as the '''Ofgem board'''.<ref name="ofgem2">{{cite web|url=https://www.ofgem.gov.uk/about-us/our-structure-and-leadership |title=Our structure and leadership |format=webpage |access-date=2025-03-18}}</ref>

==Powers and duties==
The authority's powers and duties are largely provided for in statute (such as the [[Gas Act 1986]], the [[Electricity Act 1989]], the [[Utilities Act 2000]], the [[Competition Act 1998]], the [[Enterprise Act 2002]] and the [[Energy Act 2004]],<ref>{{cite web|url=http://www.statutelaw.gov.uk/content.aspx?LegType=All+Legislation&title=energy&searchEnacted=0&extentMatchOnly=0&confersPower=0&blanketAmendment=0&sortAlpha=0&TYPE=QS&PageNumber=1&NavFrom=0&parentActiveTextDocId=3302159&ActiveTextDocId=3302159&filesize=9649 |title=The UK Statute Law Database: The Energy Act 2004 |publisher=Statutelaw.gov.uk |access-date=13 January 2013}}</ref> the Energy Act 2008<ref>{{cite web|url=http://www.statutelaw.gov.uk/legResults.aspx?LegType=All+Legislation&title=energy&searchEnacted=0&extentMatchOnly=0&confersPower=0&blanketAmendment=0&TYPE=QS&NavFrom=0&activeTextDocId=3540328&PageNumber=1&SortAlpha=0 |title=The UK Statute Law Database: The Energy Act 2008 |publisher=Statutelaw.gov.uk |date=27 May 2011 |access-date=13 January 2013}}</ref> and the [[Energy Act 2010]]<ref>{{cite web|url=http://www.statutelaw.gov.uk/legResults.aspx?LegType=All+Legislation&title=energy+act+2010&searchEnacted=0&extentMatchOnly=0&confersPower=0&blanketAmendment=0&TYPE=QS&NavFrom=0&activeTextDocId=3697973&PageNumber=1&SortAlpha=0 |title=The UK Statute Law Database: The Energy Act 2010 |publisher=Statutelaw.gov.uk |access-date=13 January 2013}}</ref>) as well as arising from directly effective European Union legislation. Duties and functions concerning gas are set out in the Gas Act and those relating to electricity are set out in the Electricity Act.

Its primary duty is to protect the interests of consumers, where possible by promoting competition.<ref>{{cite web|url=http://www.dti.gov.uk/files/file32549.pdf|title=The role of energywatch and Ofgem|page=2|access-date=13 January 2013|url-status=dead|archive-url=https://web.archive.org/web/20080908123954/http://www.dti.gov.uk/files/file32549.pdf|archive-date=8 September 2008|df=dmy-all}}</ref>

The Authority‘s main objective is to protect existing and future consumers' interests in relation to gas conveyed through pipes and electricity conveyed by distribution or transmission systems. Consumers' interests are their interests taken as a whole, including their interests in the reduction of greenhouse gases and in the security of the supply of gas and electricity to them.<ref>{{cite web|url=http://www.ofgem.gov.uk/Markets/RetMkts/ensuppro/Documents1/Electricity%20and%20Gas%20Supply%20Market%20Report%20September%202010.pdf |title=Ofgem Electricity and Gas Supply Market Report September 2010| pages=19–21 |access-date=13 January 2013}}</ref> Since 2010 the Authority has imposed nearly £100&nbsp;million in fines and [[redress levy|redress levies]] against energy suppliers, including a £12&nbsp;million redress levy on [[E.ON]] in May 2014,<ref name="OfgemPenalty">{{cite news|title=E.On to reimburse 12mn pounds to customers for mis-selling power|url=http://www.theuknews.com/index.php/sid/222063701/scat/0f440bf3fff89f01/ht/EOn-to-reimburse-12mn-pounds-to-customers-for-mis-selling-power|access-date=17 May 2014|publisher=The UK News|archive-url=https://web.archive.org/web/20140518024613/http://www.theuknews.com/index.php/sid/222063701/scat/0f440bf3fff89f01/ht/EOn-to-reimburse-12mn-pounds-to-customers-for-mis-selling-power|archive-date=18 May 2014|url-status=dead}}</ref> and a £1 million redress levy on [[British Gas]] in July 2014.<ref name="BritishGas">{{cite news|title=BG pays compensation for mis-sold contracts|url=http://www.britainnews.net/index.php/sid/223524977/scat/3a8a80d6f705f8cc/ht/BG-pays-compensation-for-mis-sold-contracts|access-date=5 July 2014|publisher=Britain News.Net|archive-url=https://web.archive.org/web/20140714202819/http://www.britainnews.net/index.php/sid/223524977/scat/3a8a80d6f705f8cc/ht/BG-pays-compensation-for-mis-sold-contracts|archive-date=14 July 2014|url-status=dead}}</ref>

==Structure==
The Gas and Electricity Markets Authority is governed by the Chairman Martin Cave, executive members as well as non-executive members.<ref name="ofgem1">{{cite web|url=https://www.ofgem.gov.uk/about-us/who-we-are/gas-and-electricity-markets-authority |title=Gas and Electricity Markets Authority |format=webpage |access-date=13 January 2013}}</ref>

[[Jonathan Brearley]] was appointed Chief Executive of Ofgem from February 2020.<ref name=":0">{{Cite web|url=https://www.ofgem.gov.uk/publications-and-updates/ofgem-appoints-jonathan-brearley-chief-executive|title=Ofgem appoints Jonathan Brearley as chief executive|date=2 October 2019|website=Ofgem|access-date=3 April 2020}}</ref>

==Development of competition in the UK market==

=== Background: Ofgas and OFFER ===
The liberalisation and [[privatisation]] of the energy markets in the United Kingdom began with the [[Margaret Thatcher]] Government in the 1980s (often called the Thatcher-Lawson agenda, due to the key role of [[Nigel Lawson]] in the Thatcher government cabinet). Aspects of the UK's model have been adopted by [[European Union|EU]] legislation.<ref>{{cite web|last=|first=|date=|title=Single market for gas & electricity|url=https://ec.europa.eu/energy/gas_electricity/index_en.htm|url-status=dead|archive-url=https://web.archive.org/web/20130324183841/https://ec.europa.eu/energy/gas_electricity/index_en.htm|archive-date=24 March 2013|website=European Commission|via=Internet Archive}}</ref>

The privatisation of the gas and electricity supply industries was enacted by the [[British Gas plc|Gas Act 1986]] and the [[Electricity Act 1989]]. Section 1 of the respective Acts created the roles of Director General of Gas Supply<ref name=":1">{{Cite web|url=http://www.legislation.gov.uk/ukpga/1986/44/contents/enacted|title=Gas Act 1986|website=legislation.gov.uk|access-date=3 April 2020}}</ref> and the Office of Gas Supply (Ofgas), and the Director General of Electricity Supply<ref name=":2">{{Cite web|url=http://www.legislation.gov.uk/ukpga/1989/29/contents/enacted|title=Electricity Act 1989|website=legislation.gov.uk|access-date=3 April 2020}}</ref> and the Office of Electricity Regulation (OFFER). These were economic regulators independent of government, but accountable to Parliament. This arrangement separated their regulatory decisions from political control in order to provide greater long term regulatory certainty and to encourage market entry and investment. The duties of the regulators were prescribed in Section 4 of the Gas Act 1986<ref name=":1" /> and Section 3 of the Electricity Act 1989.<ref name=":2" />

Starting in the 1990s, the supply of electricity and gas to retail consumers in the UK has been unbundled from the rest of the industry. At the time of privatisation, British Gas and the regional [[public electricity supplier|public electricity suppliers]] held a [[monopoly]] on supplying all domestic gas and electricity consumers respectively. In 1997, British Gas was split (demerged) into [[Centrica]] and [[BG plc]], in order to separate gas supply from its production and distribution.<ref>{{Cite web|date=13 February 1997|title=Green light for split British Gas divides with aim of conquering market|url=https://www.heraldscotland.com/news/12078257.green-light-for-split-british-gas-divides-with-aim-of-conquering-market/|access-date=2021-11-01|website=HeraldScotland|language=en}}</ref> Between 1996 and 1999, domestic energy consumers were gradually able to choose their supplier. Finally, in May 1998 the domestic gas market was fully opened to competition, followed by the domestic [[electricity market]] in May 1999.<ref>{{cite web|date=6 October 2008|title=Energy Supply Probe – Initial Findings Report|url=http://www.ofgem.gov.uk/Markets/RetMkts/ensuppro/Documents1/Energy%20Supply%20Probe%20-%20Initial%20Findings%20Report.pdf|access-date=13 January 2013|website=Ofgem|pages=18–20}}</ref>

=== Role of Ofgem ===
Before there was competition in domestic markets, the regulators set [[price controls]] which fixed the maximum price that the monopoly suppliers could charge domestic customers. These controls remained in place when markets started to be liberalised, and were removed in stages between 2000 and 2002. Ofgem's decision to remove price controls was based on their assessment that competition was developing well at that time and that the [[Competition Act 1998]], being effective since March 2000, would deter companies from the abuse of market power, and provide Ofgem with sufficient power to tackle any abuse. Moreover, consumer surveys showed good awareness of the ability to switch, high and rising switching rates away from the former monopoly suppliers, and substantial and continuing falls in their market shares.<ref>{{cite web|url=http://www.ofgem.gov.uk/Markets/RetMkts/ensuppro/Documents1/Energy%20Supply%20Probe%20-%20Initial%20Findings%20Report.pdf |title=Energy Supply Probe – Initial Findings Report| page=20 |access-date=13 January 2013}}</ref>

Two years after the removal of the last price controls, in April 2004, Ofgem published a major review of the state of competition in the domestic energy supply markets, concluding that supply competition had delivered substantial benefits for all consumers and that the markets were competitive, though not yet mature. Between 2005 and 2007, Ofgem carried out a Supply Licence Review, resulting in simplification of supply licences, with the aim of reducing barriers to entry to the supply market, and enabling innovation. In 2006, Ofgem required the industry to set up and fund the Energy Supply Ombudsman in response to concerns over the handling of customer complaints.<ref>{{cite web|url=http://www.ofgem.gov.uk/Markets/RetMkts/ensuppro/Documents1/Energy%20Supply%20Probe%20-%20Initial%20Findings%20Report.pdf |title=Energy Supply Probe – Initial Findings Report| pages=20–21 |access-date=13 January 2013}}</ref>

Ofgem's Energy Supply Probe, published in 2008 after increases in world fuel prices led to the doubling of the energy bill for a typical household, found that the market was still dominated by the "[[Big Six energy suppliers|Big Six]]" suppliers: more than 70% of customers were still with their former monopoly suppliers, and new entrants had captured less than 0.3% of the market. Ofgem implemented a number of measures which improved the information provided to customers and made it easier for them to switch suppliers. The Big Six were obliged to separate their accounting for the supply and generation businesses, and Ofgem noted concerns over market abuses and unfair pricing.<ref>{{cite web|url=http://www.ofgem.gov.uk/Markets/RetMkts/ensuppro/Documents1/Energy%20Supply%20Probe%20-%20Initial%20Findings%20Report.pdf |title=Energy Supply Probe&nbsp;— Initial Findings Report| pages=22–27 |access-date=13 January 2013}}</ref>

===CMA investigation, 2014–2016===
In June 2014 Ofgem announced a [[Competition and Markets Authority]] (CMA) investigation into the trading practices and competitiveness of the country's "Big Six" energy companies: [[Centrica]], [[SSE plc]], [[RWE npower]], [[E.ON]], [[Scottish Power]] and [[EDF Energy]]. The investigation, which took two years, followed a referral by Ofgem to the competition regulator. "There is near-unanimous support for a referral and the CMA investigation offers an important opportunity to clear the air. This will help rebuild consumer trust and confidence in the energy market as well as provide the certainty investors have called for," Ofgem CEO Dermot Nolan in announcing the investigation.<ref name="CMAprobe">{{cite news|title=UK market regulator to probe power utilities' operations|url=http://www.theuknews.com/index.php/sid/223293197/scat/0f440bf3fff89f01/ht/UK-market-regulator-to-probe-power-utilities-operations|access-date=27 June 2014|publisher=The UK News}}</ref> In August 2016 Ofgem said that it would implement the CMA's recommendation that suppliers should be required to provide the details of customers who have been on expensive tariffs for three years or more to rival suppliers. Ofgem also said that it would impose an interim price cap on customers using pre-payment meters.<ref>{{cite news|newspaper=Financial Times|author=Mehreen Khan|title=Ofgem approves plans to reduce energy bills|url=https://next.ft.com/content/c16cd3a2-02ba-383e-9237-df66879fcdfc|date=3 August 2016|access-date=3 August 2016}}</ref>

===Energy price caps===
{{Main|Energy policy of the United Kingdom#Default tariff energy price cap}}

In October 2017, Prime Minister [[Theresa May]] announced her intention to introduce a cap on standard variable tariffs for energy customers, to be designed and implemented by Ofgem.<ref name="bbcnews20171004">{{cite news|url=https://www.bbc.com/news/business-41499483|title=Theresa May revives plan to cap energy prices|last=Milligan|first=Brian|work=BBC News|date=2017-10-04|access-date=2020-10-21}}</ref> The [[Domestic Gas and Electricity (Tariff Cap) Act 2018]] (c. 21) received royal assent on 19 July 2018.<ref name="govuk20180719">{{cite press release|url=https://www.gov.uk/government/news/victory-for-consumers-as-cap-on-energy-tariffs-to-become-law|title=Victory for consumers as cap on energy tariffs to become law|publisher=Gov.uk|date=2018-07-19|access-date=2020-10-21}}</ref> It stipulated that the price cap would be in place from the end of 2018 until 2020, when Ofgem would recommend whether the cap should remain on an annual basis up to 2023. Ofgem would also review the level of the cap at least every six months;<ref name="govuk20180719" /> from October 2022 reviews were to be conducted every three months, to reflect volatility in wholesale prices.<ref>{{Cite web |last=Jolly |first=Jasper |date=2022-08-04 |title=Ofgem confirms energy price cap to be updated every three months |url=https://www.theguardian.com/money/2022/aug/04/ofgem-confirms-energy-price-cap-to-be-updated-every-three-months |access-date=2022-08-10 |website=the Guardian |language=en}}</ref>

Ofgem refers to this mechanism as the "default tariff" price cap, to distinguish it from the "prepayment" price cap, its other energy price cap.<ref name="ofgemcaps">{{cite web|url=https://www.ofgem.gov.uk/energy-price-caps/about-energy-price-caps|title=About energy price caps|access-date=2020-10-21}}</ref>

=== Collapses of retail suppliers, 2021–2022 ===
Between July 2021 and May 2022, 29 retail suppliers of gas and electricity collapsed, largely due to unprecedented increases in wholesale gas prices.<ref name=":3">{{Cite web |date=26 July 2022 |title=Energy pricing and the future of the energy market – Report Summary |url=https://publications.parliament.uk/pa/cm5803/cmselect/cmbeis/236/summary.html |access-date=10 August 2022 |website=UK Parliament}}</ref> Ofgem arranged for their customers to be transferred to other companies but this was not possible for the 1.7 million customers of the largest company to enter [[Administration in United Kingdom law|administration]], [[Bulb Energy]], which instead entered a special administration regime underwritten by the UK government.<ref>{{Cite news |date=2021-11-22 |title=Energy firm Bulb set to go into administration |language=en-GB |work=BBC News |url=https://www.bbc.com/news/business-59373198 |access-date=2022-08-10}}</ref>

A July 2022 report "Energy pricing and the future of the energy market" by Parliament's [[Business, Energy and Industrial Strategy Committee]] found that Ofgem had been incompetent in its supervision of the finances of supplier companies, and that the government overlooked this lack of supervision because it prioritised competition over market regulation.<ref name=":3" /><ref>{{Cite news |date=2022-07-26 |title=Cost-of-living payments branded insufficient as energy bills soar |language=en-GB |work=BBC News |url=https://www.bbc.com/news/business-62291652 |access-date=2022-08-10}}</ref> In response, Ofgem accepted that its previous financial resilience regime was not sufficiently robust, and had contributed to some of the supplier failures since August 2021.<ref>{{Cite web |date=26 July 2022 |title=Ofgem statement on the Business, Energy and Industrial Strategy Committee's report on energy pricing and the future of the energy market |url=https://www.ofgem.gov.uk/publications/ofgem-statement-business-energy-and-industrial-strategy-committees-report-energy-pricing-and-future-energy-market |access-date=2022-08-10 |website=Ofgem |language=en}}</ref>

==Allegations of abuse of power relating to whistleblowers==
In September 2018, the Guardian published a report claiming that two Ofgem experts had been independently threatened with criminal sanctions if they publicly revealed information. Ofgem allegedly invoked section 105 of the [[Utilities Act 2000]], designed to protect national security, relating to concerns about [[smart meters]] and [[Renewable Heat Incentive]] projects.<ref>{{cite news|url=https://www.theguardian.com/law/2018/sep/17/ofgem-made-my-life-hell-whistleblowers-say-they-were-threatened-by-regulator|title=Ofgem exploited national security law to silence us, whistleblowers claim|work=Guardian newspapers|author=Nick Hopkins|date=17 Sep 2018|access-date=17 Sep 2018}}</ref>

== Alternative Dispute Resolution (ADR) ==
Under the Alternative Dispute Resolution for Consumer Disputes Regulations 2015, if an energy company fails to resolve a complaint through their own customer service efforts they will be required to advise the consumer of an approved ADR body.

Ofgem is the Competent Authority responsible for approving ADR entities in the energy sector. Ofgem has only ever approved one ADR entity: Ombudsman Services.<ref>{{Cite web|url=https://www.ofgem.gov.uk/publications-and-updates/redress-schemes-approval-adr-body|title=Ofgem website|last=ADR information|first=Adr|date=September 2015|website=Ofgem}}</ref>

=== Energy Industry Voluntary Redress Scheme ===
Ofgem launched an ''Energy Industry Voluntary Redress Scheme'' in 2018 to redistribute money paid by energy companies who have breached their operating licence conditions. Recipients of the fund include vulnerable energy consumers and developers of energy products and services that reduce the environmental impact. The scheme is managed by the [[Energy Saving Trust]].<ref>{{cite news |last1=Scottish Housing News |title=Over £2.9m in Ofgem energy redress funding awarded to UK charities |url=https://www.scottishhousingnews.com/article/over-2-9m-in-ofgem-energy-redress-funding-awarded-to-uk-charities |publisher=Dundee Press Agency Ltd |date=28 July 2020 |language=en}}</ref><ref>{{cite news |last1=Shrestha |first1=Priyanka |title=Ofgem's Voluntary Redress Scheme to be extended to community energy groups |url=https://www.energylivenews.com/2021/06/18/ofgems-voluntary-redress-scheme-to-be-extended-to-community-energy-groups/ |work=Energy Live News |publisher=Energy Live News Ltd |date=18 June 2021}}</ref><ref>{{cite web |title=About us |url=https://energyredress.org.uk/about-us |website=Energy Redress scheme |publisher=Energy Saving Trust |date=2018}}</ref>

Notable payments into the scheme include:
£12.5M from [[PayPoint]] for breaking the 1998 Competition Act;<ref>{{cite news |title=PayPoint donates £12.5m to Ofgem's voluntary redress fund following competition investigation |url=https://www.credit-connect.co.uk/news/paypoint-donates-12-5m-to-ofgems-voluntary-redress-fund-following-competition-investigation/ |work=Credit Connect |date=23 November 2021}}</ref>
£8.9M from [[OVO Energy]] for overcharging customers;<ref>{{cite news |title=Ovo Energy fined £8.9m for overcharging customers |url=https://news.sky.com/story/ovo-energy-fined-8-9m-for-overcharging-customers-11920588 |work=Sky News |date=29 January 2020 |language=en}}</ref>
£4.5M from [[Hornsea Wind Farm]], £4.5M from [[Npower (United Kingdom)|Npower]] and £1.5M from [[UK Power Networks]] for failing to remain connected after a lightning strike causing a widespread [[List_of_major_power_outages#2019|blackout on 9 August 2019]];<ref>{{cite web |last1=Saurugg |first1=Herbert |title=Major disturbance in UK grid on 9 August 2019 |url=https://www.saurugg.net/2019/blog/stromversorgung/major-disturbance-in-uk-grid-on-9-august-2019 |website=Herbert Saurugg, Blackout- und Krisenvorsorgeexperte |date=16 August 2019}}</ref>
£2.8M from OVO Energy, £2m from [[Scottish Power]], £1.3M from [[British Gas]], £1.2M from [[Shell Energy]], £1M from [[SSE plc]] and amounts from £7k to £713k from 13 other energy suppliers for overcharging between 2013 and 2020;<ref>{{cite news |last1=Williams |first1=Martin |title='Regret': Scots energy firms ordered to pay millions in compensation for overcharging |url=https://www.heraldscotland.com/news/19128320.regret-scottishpower-sse-scottish-gas-ordered-pay-millions-compensation-overcharging/ |work=The Herald |publisher=HeraldScotland |date=2 March 2021 |language=en}}</ref>
£1.5M from [[Utility Warehouse]] for treating customers unfairly and increasing their financial distress;<ref>{{cite news |last1=Earl |first1=Nicholas |title=Utility Warehouse pays £1.5m to Ofgem fund after failing customers in debt |url=https://www.cityam.com/utility-warehouse-pays-1-5m-to-ofgem-fund-after-failing-customers-in-debt/ |work=CityAM |date=10 November 2021}}</ref>
and £1M from SSE for sending inaccurate customer statements.<ref>{{cite news |last1=Vaughan |first1=Adam |title=SSE fined £1m for sending inaccurate customer statements |url=https://www.theguardian.com/business/2018/jun/07/sse-fined-1m-for-sending-inaccurate-customer-statements |work=The Guardian |date=7 June 2018 |language=en}}</ref>

== Key people ==
'''Directors General of Ofgas'''

* Sir James McKinnon, 1986 – October 1993<ref>{{Cite web|url=https://www.managementtoday.co.uk/uk-regulating-regulators/article/409031|title=UK: Regulating the regulators|date=1 June 1993|website=Management Today|access-date=3 April 2020}}</ref>
* Clare Spottiswoode, October 1993 – October 1998<ref>''The Times'', 25 September 1993, p.21</ref>
* Callum McCarthy, 1998 – 2002.<ref>{{Cite book|url=https://books.google.com/books?id=ax6JDAAAQBAJ&q=callum+mccarthy+1998&pg=PA157|title=The Politics of Regulation|date=13 March 2001|isbn=9780333978122|access-date=3 April 2020|last1=Young|first1=A.|publisher=Springer }}</ref> Following the retirement of Stephen Littlechild, Callum McCarthy assumed the combined role of Director General of Ofgas and Director General of OFFER.

'''Director General of OFFER'''

* Stephen Charles Littlechild (b.1943), September 1989 – 1998<ref>{{Cite news|last=Buckley|first=Christine|title=Outgoing regulator attacks power plant ban|date=30 December 1998|work=The Times}}</ref>

'''Chair and Chief Executive of Ofgem'''

* Callum McCarthy, 1998 – October 2003. Following the end of tenure of Callum McCarthy the roles of Chair and Chief Executive Officer were split.

'''Chair of Ofgem'''

* Sir John Mogg (Baron Mogg), October 2003 – 2013<ref>{{Cite web|url=https://www.walesonline.co.uk/business/business-news/former-ec-leader-head-ofgem-2484492|title=Former EC leader to head Ofgem|date=13 May 2003|website=Wales online|access-date=3 April 2020}}</ref>
* David Gray, 2013–September 2018<ref>{{Cite web|url=https://www.ofgem.gov.uk/publications-and-updates/david-gray-ofgem-chairman-retire-september|title=David Gray, Ofgem chairman, to retire in September|date=14 December 2020|website=www.ofgem.gov.uk|access-date=27 November 2020}}</ref>
* Martin Cave, from September 2018<ref>{{Cite web|url=https://www.ofgem.gov.uk/publications-and-updates/government-selects-martin-cave-preferred-candidate-be-next-ofgem-chairman|title=Government selects Martin Cave as preferred candidate to be next Ofgem chairman|date=25 June 2018|website=Ofgem|access-date=3 April 2018}}</ref>

'''Chief Executive Officer of Ofgem'''

* Alistair Buchanan, October 2003 – 2013
* Andrew Wright, interim CEO, June 2013 – March 2014<ref>{{Cite web|url=https://www.ofgem.gov.uk/publications-and-updates/andrew-wright-appointed-interim-ceo-ofgem|title=Andrew Wright appointed Interim CEO of Ofgem|date=9 May 2013|website=Ofgem|access-date=3 April 2013}}</ref>
* Dermot Nolan, March 2014 – February 2020<ref name="ofgem1" />
* Jonathan Brearley, from February 2020<ref name=":0" />

==See also==
{{Portal|the United Kingdom|Energy}}
*[[Consumer Focus]] (consumer watchdog)
*[[Energy in the United Kingdom]]
*[[Energy policy of the United Kingdom]]
*[[Electricity billing in the UK]]
*[[Energy switching services in the UK]]

==References==
{{Reflist|30em}}

==External links==
*{{Official website}}
*[https://web.archive.org/web/20080908123954/http://www.dti.gov.uk/files/file32549.pdf The role of energywatch and Ofgem] – Department of Trade and Industry, archived September 2008
*[https://web.archive.org/web/20070610081932/http://www.sd-commission.org.uk/pages/ofgemreview.html Sustainable Development Commission in-depth review of Ofgem], archived June 2007

{{UK Regulators Network}}
{{Department for Business, Energy and Industrial Strategy}}
{{Departments of the United Kingdom Government|type=Non-ministerial|title=Gas and Electricity Markets}}
{{Energy in the United Kingdom|govreg}}
{{Economy of the United Kingdom}}
{{Authority control}}

[[Category:Non-ministerial departments of the Government of the United Kingdom]]
[[Category:Electricity authorities|United Kingdom]]
[[Category:Energy in the United Kingdom]]
[[Category:Organisations based in the City of Westminster]]
[[Category:Regulators of the United Kingdom]]
[[Category:Organizations established in 2000]]
[[Category:2000 establishments in the United Kingdom]]