Regulator profile

Ofgem

Office of Gas and Electricity Markets

Enforcement Regulator UK-wide

What Ofgem does

Regulates gas and electricity markets in Great Britain. Issues licences for generation, transmission, distribution, and supply. Protects consumers and promotes competition. Also administers renewable energy schemes (ROCs, FIT legacy, CfD).

Key licences: Generation, Supply, Distribution, Transmission. Renewable energy accreditation: ROCs, REGOs. Major decisions appealable to CMA.

Consumer ProtectionLicensingMarket RegulationRenewables

Contact Ofgem

Official guidance from Ofgem

Curated guidance documents to help you understand your obligations.

Ofgem energy sector guidance (opens in a new tab)

Detailed Guidance

Ofgem licensing (Great Britain) (opens in a new tab)

Detailed Guidance

Adjustments to the Guaranteed Standards of Performance: 2025 | Ofgem (opens in a new tab)

Detailed Guidance

Adjustments to the Guaranteed Standards of Performance prescribed sums in line with inflation | Ofgem (opens in a new tab)

Detailed Guidance

Apply for an electricity supply licence (opens in a new tab)

Detailed Guidance

Connection and Use of System Code (CUSC) (opens in a new tab)

Other

Correction slip: Implementation date for insertion of paragraph 23.2A and schedules 3 and 4 of standard condition 23 | Ofgem (opens in a new tab)

Detailed Guidance

FIT Amendment Orders and Amended Licence Conditions | Ofgem (opens in a new tab)

Detailed Guidance

View all 976 guidance documents (opens in a new tab)

Legislation that Ofgem directly enforces.

Primary legislation

Gas Act 1986 Electricity Act 1989 Competition Act 1998 Utilities Act 2000 Enterprise Act 2002 Energy Act 2004 Energy Act 2008 Energy Act 2010 Energy Act 2011 Energy Act 2013 Consumer Rights Act 2015 Energy Act 2016 Domestic Gas and Electricity (Tariff Cap) Act 2018 Smart Meters Act 2018 Energy Prices Act 2022 Energy Act 2023

Secondary legislation

Electricity Safety, Quality and Continuity Regulations 2002 Business Protection from Misleading Marketing Regulations 2008 Renewables Obligation Order 2009 Renewables Obligation (Scotland) Order 2009 Scottish Statutory Instrument The Electricity and Gas (Carbon Emissions Reduction) (Amendment) Order 2010 The Electricity (Standards of Performance) (Amendment) Regulations 2010 The Energy Act 2004 (Commencement No. 10) Order 2010 The Energy Act 2008 (Commencement No. 5) Order 2010 The Energy Act 2008 (Consequential Modifications) (Offshore Environmental Protection) Order 2010 The Renewables Obligation (Amendment) Order 2010

… and 184 more statutory instruments.

Legislation connected to Ofgem’s remit but not directly enforced — establishing Acts, amendments, referenced legislation, and context.

Administered / monitored

Electricity (Class Exemptions from the Requirement for a Licence) Order 2001 UK Statutory Instrument

Referenced in enforcement

The Electricity (Approval of Pattern or Construction and Installation and Certification) (Amendment) Regulations 2002 UK Statutory Instrument Electricity (Offshore Generating Stations) (Safety Zones) Regulations 2007 UK Statutory Instrument The Town and Country Planning and Electricity Works (EU Exit) (Scotland) (Miscellaneous Amendments) Amendment Regulations 2019 Scottish Statutory Instrument The Town and Country Planning and Electricity Works (EU Exit) (Scotland) (Miscellaneous Amendments) Regulations 2019 Scottish Statutory Instrument The Infrastructure Planning (Electricity Storage Facilities) Order 2020 UK Statutory Instrument The Town and Country Planning, Management of Extractive Waste and Electricity Works (EU Exit) (Scotland) (Miscellaneous Amendments) Regulations 2020 Scottish Statutory Instrument The Keadby 3 (Carbon Capture Equipped Gas Fired Generating Station) Order 2022 UK Statutory Instrument Gas Safety (Management) (Amendment) Regulations 2023 UK Statutory Instrument The Health and Safety and Nuclear (Fees) (Amendment) and Gas Safety (Miscellaneous Amendment) Regulations 2024 UK Statutory Instrument

Other publications

2 additional documents from Ofgem.

Net zero pre-construction work and small net zero projects re-opener governance document (opens in a new tab)

Published 30 March 2021

ECO2 cavity wall U-value checklist (opens in a new tab)

Published 8 February 2016

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