The UK is on course to import record amounts of electricity from abroad in 2024, raising concerns that domestic energy infrastructure is not adequate to meet demand.

Figures from the Nuclear Industry Association (NIA) showed that the UK relies on other countries to power more than 10 million homes, and June saw the highest ever proportion of imported electricity.

Nine different interconnectors with a total capacity of 9.2GW link Britain to six other European markets. Nuclear energy from France is currently the leading source of imported electricity to the UK, the NIA said.

Government data showed that net electricity imports from France to the UK totalled 12.7TWh last year, with nuclear making up the bulk of that power. France’s grid is made up of around 70% nuclear. Norway is the second largest exporter of power to the UK, mainly from hydro.

Interconnectors operate both ways, and the UK does export energy to continent as well, especially when there is a surplus of wind power on the National...