Third party access exemptions

Open and non-discriminatory access to the networks by those who do not own the physical network infrastructure, known as third party access (TPA), is fundamental in facilitating greater competition and making energy markets work effectively.

Owners and operators of the electricity networks, the transmission system operator (SO) and the distribution system operators (DSOs), and the owners/ operators of interconnectors, are obliged by European legislation and related licence conditions to provide non-discriminatory access to their lines, pipes and other facilities to third parties.

Under EU legislation, interconnectors, storage facilities and LNG import terminals may apply for an exemption from being required to offer access to third parties. This route is intended to promote the development of such facilities within GB.

Ofgem considers each request for exemption on a case by case basis to see if certain criteria set out in legislation  are met. We have already taken a number of decisions to provide exemptions.

As part of the granting of an exemption we may, and in some circumstances are  required to, impose certain conditions on the operation of the facility (for example, the exemption may be limited to a certain time period).    

The GB Markets team oversees the process for considering applications for exemption from the Directive Regulated Third Party Access (RTPA) requirements. This largely covers the following types of infrastructure development:

  • gas and electricity interconnectors to other countries
  • gas storage facilities
  • Liquefied Natural Gas (LNG) importation facilities.


Publications and updates

  • Published: 29th Nov 2005
  • Reports and plans
  • 1 Associated documents
Use it or lose it (UIOLI) arrangements at Grain LNG.

  • Published: 29th Nov 2005
  • Open letters and correspondence
  • 1 Associated documents

  • Published: 21st Oct 2005
  • Consultations and responses
  • 3 Associated documents
Consultation on an application by INEOS Enterprises Limited for an exemption under section 19A(5) of the Gas Act 1986 from section 19B of the Gas Act 1986.

  • Published: 1st Aug 2005
  • Other
  • 1 Associated documents
Summary paper on Great Britain’s gas and electricity markets.

  • Published: 6th Jul 2005
  • Decisions
  • 1 Associated documents
See our decision on an application by Scottish Power Energy Management Limited on behalf of Holford Gas Storage Limited for an exemption under section 19A(6)(a) of the Gas Act 1986 from section 19B of the Gas Act 1986.

  • Published: 12th Apr 2005
  • Decisions
  • 1 Associated documents
European Commission decision on Ofgem’s decision to grant Dragon LNG Ltd (Dragon) an exemption under section 19C(5) of the Gas Act 1986 (the “Gas Act”) from the application of section 19D of the Gas Act.

  • Published: 8th Apr 2005
  • Licence applications
  • 1 Associated documents
Application by BBL Company for an interconnector licence to participate in the operation of the Balgzand Bacton Line - Ofgem final views.