UK government spending plan guarantee for Wylfa Newydd
4 December 2013 Last updated at 21:31 GMT
A new nuclear power plant on Anglesey by Japanese firm Hitachi is among the projects listed in a 20-year infrastructure spending plan published by the UK government.
It guarantees to support finance for developing a new station at Wylfa.
Building the £8bn Wylfa Newydd (New Wylfa) is subject to planning approval, a process expected to take three years.
Hitachi's reactors also need to be approved by the Health and Safety Executive.
Roger Pinney reports.