An existing nuclear reactor on Anglesey could continue producing power until December 2015, according to its operator.
Wylfa was expected to shut down in 2014.
On its website today, operator Magnox said the plans are subject to Periodic Safety Review (PSR) approval.
Reactor 2 at the site was shut down last year.
More top news
Our Valleys Correspondent Hannah Thomas has been spending time discovering why the people who live in the Valleys love their communities.
A Muslim teacher, who was denied entry to the US, has told ITV News he was 'distraught' when he was removed from the flight.
George North is on course to return from injury when Wales resume their RBS 6 Nations campaign against Scotland on Saturday.