Great Britain electricity interconnectors
Produced in partnership with Richard Goodfellow of Addleshaw Goddard
Great Britain electricity interconnectors

The following Energy practice note Produced in partnership with Richard Goodfellow of Addleshaw Goddard provides comprehensive and up to date legal information covering:

  • Great Britain electricity interconnectors
  • What are Interconnectors?
  • Traditional Interconnectors
  • Multi Purpose Interconnecters (MPIs)
  • Benefits of interconnectors
  • Energy security
  • Lowering prices for consumers and reducing price volatility
  • Encouraging renewable generation
  • Government policy on interconnectors
  • Government view
  • More...

Brexit impact

This Practice Note contains information on subjects impacted by the UK’s withdrawal from the EU at 11 pm on 31 January 2020 (exit day). As of exit day, the UK is no longer an EU Member State, but it has entered an implementation period during which it continues to be treated by the EU as a Member State for many purposes. For further reading, see Practice note: Brexit—introduction to the Withdrawal Agreement.

For information on how leaving the EU will affect the EU Internal Energy Market and/or Great Britain’s (GB’) international electricity and gas interconnectors and trade, see Practice Note: Energy and Brexit—the EU Internal Energy Market and international electricity and gas interconnection regulation and trade, which details the key publications and announcements made to date which are specific to Brexit and the EU Internal Energy Market and/or Brexit and Great Britain’s international electricity and gas interconnectors and trade. It also provides a brief analysis of the consequences of these publications and announcements, and the position to date. 

What are Interconnectors?

Traditional Interconnectors

Interconnectors are large transmission cables that transmit electricity from one country to another. Almost all interconnectors with Great Britain (GB) are subsea cables, with the exception of ElecLink (which will run through the Channel Tunnel). An interconnector project will include the cable itself (normally high voltage direct current (HVDC)) and a converter station at

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