The Wylfa nuclear site in Wales remains one of the most suitable sites in Europe for new build, but the UK government needs to make a decision on whether it wants gigawatt-size reactors, a committee of Welsh MPs has heard.

Tom Greatrex, chief executive of the UK Nuclear Industry Association, said Wylfa remains one of the most suitable sites in Europe and if there is a new gigawatt-scale reactor beyond Sizewell C in Suffolk, it is “highly likely” to be Wyfla.

Greatrex told an inquiry into nuclear energy by the Welsh parliament’s economy committee that the central government has a target of 24 GW of nuclear capacity by 2050, which is four times the current level.