BritNed, the subsea electricity interconnector linking Great Britain and the Netherlands, is marking 15 years of electricity flowing between the two countries, delivering more affordable and secure power for millions of homes and businesses.

The milestone comes as National Grid and TenneT Netherlands, the Dutch transmission system operator, sign a new Joint Development Agreement to build on BritNed’s success through LionLink, a hybrid technology designed to maximise the consumer benefits of interconnection and offshore wind.

The proposals sought to remove a 7km section of overhead electricity line and 16 pylons between Postlip Mill, near Winchcombe, and Dowdeswell Wood, east of Cheltenham, in the Cotswolds National Landscape and replace it with underground cables. 

Ofgem, the UK energy regulator, has launched a 28-day consultation on its position, which will run until 28 April 2026. A final decision is expected in the summer. 

Any feedback or responses to the consultation should be emailed directly to Ofgem (via [email protected]). 

Britain’s next subsea electrical highway has confirmed £3bn of major supply chain contracts, marking a significant step forward in delivering critical energy infrastructure while supporting economic growth, UK energy security and reducing grid constraint costs.

A contract has been awarded to Siemens Energy to provide the high voltage direct current (HVDC) converter stations for Eastern Green Link 4 (EGL4), following the earlier confirmation of a £2bn contract with Prysmian to supply the subsea and underground electricity cables.

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