Price caps for Great Britain’s licensed electricity and gas suppliers—the evolving position
Produced in partnership with Juliet Stradling, Matthew Brown and James Wright of CMS
Price caps for Great Britain’s licensed electricity and gas suppliers—the evolving position

The following Energy practice note Produced in partnership with Juliet Stradling, Matthew Brown and James Wright of CMS provides comprehensive and up to date legal information covering:

  • Price caps for Great Britain’s licensed electricity and gas suppliers—the evolving position
  • Practice Note contents—quick links to detailed analysis
  • Introduction and context
  • Energy retail market context
  • Supplier price caps—brief history
  • Default tariffs at the end of fixed term contracts
  • Prepayment charge restriction
  • WHD Vulnerable Consumer Cap
  • Wider vulnerable consumer cap (not implemented)
  • Default Tariff Cap
  • More...

Practice Note contents—quick links to detailed analysis

CapCap start dateCap expiry dateLocation of detailed analysis / summary in this note
Price cap for Standard Variable Tariffs (SVTs) and other default tariffs (Default Tariff Cap)1 January 2019 Initially 31 December 2020, renewable on an annual basis up to 31 December 2023. BEIS has now confirmed renewal for 2021.Default Tariff Cap
Safeguard tariff for customers using prepayment meters (Prepayment Charge Restriction)1 April 201731 December 2020 (prepayment meter tariffs to be brought within the scope of the Default Tariff Cap from 1 January 2021)Other price caps currently in effect
Extension to safeguard tariff for vulnerable consumers in receipt of the Warm Home Discount (WHD) (WHD Vulnerable Consumer Cap)2 February 201831 December 2018Supplier price caps—brief history
Replacement of safeguard tariff for vulnerable consumers in receipt of the WHD with a wider safeguard tariff (Wider Vulnerable Consumer Cap)This proposed cap never came into force, as it was superseded by the Default Tariff CapSupplier price caps—brief history
Default tariffs at the end of fixed-term contracts22 October 2013OngoingOther price caps currently in effect

Introduction and context

Energy retail market context

The default position in the Great Britain (GB) electricity and gas supply market has historically been that the tariffs charged by suppliers to energy consumers for the purchase of electricity and/or gas have not been regulated. This contrasts with

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