In answering an urgent question from Plaid AM Rhodri Glyn Thomas, First Minister Carwyn Jones said his cabinet are united in attempting to bring the UK's nuclear fleet to Milford Haven, arguing the move could bring jobs to Wales.
Conservative Paul Davies welcomed the plan and asked if the Welsh Government intends to explore the full economic impact of the bid.
But Plaid AMs condemned the Government, citing safety concerns.
The idea was first mentioned by Carwyn Jones at yesterday's First Minister's questions.
More top news
The heritage body Cadw will be giving away 10,000 free tickets to more than 20 of Wales' most historic attractions this weekend.
ITV News can reveal that the cost of the controversial trial junction closures in Port Talbot has topped more than £800,000 so far.
Not a bad start to the day, but rain is waiting in the wings to spoil the sunshine for some later