Skip to contents

Retail competition 

Full competition was introduced in Great Britain from 1999. Since then customers have been able to shop around for their gas and electricity supplier. Ofgem is committed to protecting the needs of customers, where appropriate by promoting effective competition.

This section sets out documents that relate to the operation of competition in the gas and electricity retail markets, including our periodic domestic retail market reports, consultations and investigations into the performance of the markets in meeting consumers’ needs.



DateTitle (Click for more document information)
12/10/2011Further consultation: Classification of premises for the purposes of the standard conditions of the gas supply licence
- (Reference number: 131/11)
09/05/2011Open letter: practices concerning Fixed Term Offers in the domestic market
24/01/2011Consultation on practices concerning Fixed Term Offers
- (Reference number: 09/11)
14/12/2010Open letter: Classification of premises for the purposes of the standard conditions of gas supply licence
- (Reference number: 155/10)
24/06/2010Statement on Deemed Contracts
09/06/2010Guidance on application and interpretation of certain aspects of Standard Licence Condition (SLC) 7A
31/03/2010Open Letter: Automatic contract rollovers in the domestic retail markets
26/10/2009Guidance on deemed contract relationship pursuant to the Gas Act 1986 and the Electricity Act 1989
04/07/2007169/07 - Domestic Retail Market Report - June 2007
- (Reference number: 169/07)
05/07/2006Domestic Retail Market Report - March 2006
- (Reference number: 110/06)
10/04/2006Domestic Retail Market Report - September 2005: update
07/02/2006Domestic Retail Market Report - June 2005: Appendices
- (Reference number: 24b/06)
07/02/2006Domestic Retail Market Report - June 2005
- (Reference number: 24/06)
06/02/2006Domestic Retail Market Report - September 2005
- (Reference number: 23/06)
11/11/2005Non-domestic supply market review: consultation
- (Reference number: 240/05)
05/07/2005Ofgem's response to the super-complaint on billing processes made by the Gas and Electricity Consumer Council (energywatch)
- (Reference number: 163/05)
08/04/2005Gas and Electricity Domestic Billing Super-complaint
- (Reference number: 116/05)
27/01/2005Open letter on Ofgem's review of branding in the electricity distribution and supply markets
02/12/2004Supplying low income and vulnerable customer groups
- (Reference number: 272/04)
06/07/2004Improving information for customers: an occasional paper
07/04/2004Domestic Competitive Market Review 2004 vol.3 - summary
- (Reference number: 78b/04)
07/04/2004Domestic Competitive Market Review 2004 vol.2
- (Reference number: 78a/04)
07/04/2004Domestic Competitive Market Review vol. 1 and appendices
- (Reference number: 78/04)
12/09/2003The Gas and Electricity Market Authority's decision under the Competition Act 1998 that London Electricity plc has not infringed the prohibition imposed by section 18 (1) of the act with regard to a win back offer
- (Reference number: 100/03)
24/07/2003Review of competition in the non-domestic gas and electricity supply sectors - Initial findings
- (Reference number: 72/03)
10/07/2003Notification of intention to publish data in the non-domestic market review
19/06/2003Decision of the Gas and Electricity Markets Authority, following an investigation into compliance by British Gas Trading Limited with its obligations under standard licence condition 20 of its electricity supply licence
- (Reference number: 52/03)
19/06/2003Decision of the Gas and Electricity Markets Authority, following an investigation into compliance by British Gas Trading Limited with its obligations under standard licence condition 30 of its gas suppliers licence
- (Reference number: 53/03)
13/06/2003Domestic gas and electricity supply competition - Recent developments
- (Reference number: 49/03)
16/04/2003Notice of intention to impose a financial penalty by the Gas and Electricity Markets Authority, following an investigation into compliance by British Gas Trading Limited with its obligations under standard licence condition 20 of its electricity supply li
16/04/2003Notice of intention to impose a financial penalty by the Gas and Electricity Markets Authority, following an investigation into compliance by British Gas Trading Limited with its obligations under standard licence condition 30 of its gas suppliers licence
18/07/2000Categories of gas and electricity customers who should continue to benefit from certain regulatory safeguards. A Consultation Paper