The ageing Magnox reactor at Wylfa is earmarked for closure in 2010

The Nuclear Decommissioning Authority (NDA) is inviting proposals from developers interested in building another nuclear plant at Wylfa.

The existing Wylfa will stop generating electricity in 2010.

Anglesey Council leader Gareth Winston Roberts said three companies had already showed an interest in the site and it was a "huge step forward".

Wylfa is one of a string of nuclear sites across Britain being sold off by the NDA following the UK Government's decision last January to restart the nuclear industry.

Hinkley Point

Before the land was offered by the NDA, campaigners for Wylfa B felt Anglesey was at a disadvantage because British Energy, which owns and operates eight nuclear plants in England, had already been offering land to prospective developers.

Coun Roberts said he hopes that if Wylfa B is given the go-ahead by the Department of Trade and Industry (DTI) it will be sooner rather than later.

Wylfa A, was the last of the UK's Magnox station to be built, and it will also be the last to stop producing electricity.

Hinkley Point in Somerset has already been identified as one of the four best strategic sites for new generation nuclear in the UK.

Its owner, British Energy, has told BBC Wales that it is very optimistic that a Hinkley C would be built on land adjacent to the existing reactors.

There were protests in 1989 when Wylfa B was being discussed

The French company EDF has said that Hinkley is one of four sites across Britain where it would like to construct its European pressurised water reactor.

The UK is investigating four reactor designs and is expected to produce a shortlist soon of three that can be built in the UK.

The plans, both on Anglesey and Somerset, are opposed by anti-nuclear groups Pawb and Stop Hinkley C.

Week In Week Out takes three sixth formers on a journey from north Wales to Normandy in France to see if they want a nuclear future. BBC 1 Wales at 2235 GMT on Tuesday.