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.
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It'll be generally cloudy, with outbreaks of patchy light rain and drizzle at times.