The IFA1 interconnector, a link between Britain and France, was damaged by fire, affecting half of its capacity.

Last month, the other 1 GW capacity at IFA1 was brought back online after planned maintenance.

"We expect the full 2000 MW of IFA capacity to be available for Winter 22/23," the grid said in an update on its website https://www.nationalgrid.com/incidents/IFASeptember21.

The National Grid has four operational interconnectors - two to France (IFA and IFA2), one to the Netherlands (BritNed) and one to Belgium (Nemo Link).

(Reporting by Brijesh Patel in Bengaluru, Editing by Nick Zieminski and Nick Macfie)