Policy paper

Next steps for electricity interconnection in Great Britain

An overview of the next steps for future electricity interconnection and offshore hybrid assets as Great Britain transitions towards becoming a Clean Energy Superpower.

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This publication sets the stage for the future of electricity interconnection in Great Britain, acting as the first step in an ongoing programme of work that will evolve alongside NESO’s Strategic Energy Planning and Ofgem’s future interconnection delivery programme.

By enabling the cross-border flow of electricity, interconnectors allow us to import power when it is cheaper abroad and export surplus power when we are generating more than we use, helping to lower costs for consumers. They also enhance our energy security, support decarbonisation and provide flexibility for the electricity system.  This flexibility is essential for integrating the new home-grown renewable power we are building to reduce our reliance on expensive and volatile fossil fuel markets.    

As part of Great Britain’s Clean Energy Superpower Mission, we expect to further grow our interconnector fleet with additional projects that support the development of a Net Zero energy system. This document sets out the context, intentions and next steps to support the development of future electricity interconnection in Great Britain.

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Published 25 March 2026

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