It took 12 months, 1,000 engineers and 3.2 million working hours to get it running. Today, Britain’s 149-mile subsea power cable between Hampshire and Normandy can trade enough electricity to power up to a million homes, equivalent to 1.2pc of Britain’s electricity demands. It is the second subsea electricity cable, or interconnector, between the UK and France, and the fourth of 12 planned interconnectors to the continent. And despite Britain’s divorce from the EU, the UK’s reliance on electricity connections to the continent is growing. New links are planned that mean up to 25pc of British power could be met by imports in 2024. As well as providing cheaper power from the continent, the cables mean Britain can export power when it is producing too much – an increasingly important service given its growing use of wind turbines. Yet the risk of relying on such power flows was thrown into sharp relief last night after France threatened to shut down Jersey’s power supply.
Telegraph 5th May 2021 read more »