GriffinLink

On 26 January 2026, National Grid Ventures and TenneT Germany entered into a cooperation to jointly develop GriffinLink, a 2 GW multi-purpose interconnector linking British and German offshore wind generation to both countries’ electricity systems. Announced at the North Sea Summit in Hamburg, the partnership establishes the two transmission system operators as co-developers responsible for undertaking onshore and offshore studies, building the business case, and analysing socio-economic costs and benefits for the project, which remains subject to a final investment decision and is anticipated to be operational in the late 2030s.

On 26 January 2026, at the North Sea Summit in Hamburg, National Grid Ventures and TenneT Germany announced a cooperation to jointly develop GriffinLink, a planned 2 GW GB–Germany multi-purpose offshore interconnector linking offshore wind farms in the North Sea to both the British and German electricity systems. The project, described as the first hybrid interconnector of its kind in Europe and a key step towards an integrated offshore grid, is intended to enhance security of supply and market integration in north‑western Europe and is currently expected to be operational in the late 2030s, subject to a final investment decision.