Tatsuto Ishizuka, of Hitachi, confirmed some skilled workers from Japan would be employed there as well.

BBC: Wylfa nuclear plant: Hitachi officials visit Anglesey

Mr Ishizuka acknowledges that the company is taking a risk, though given that Hitachi knows how to build advanced boiling water reactors and that it now owns the land on which to build them, he is firmly optimistic.

BBC: Hitachi's nuclear deal still faces hurdles

Such investment would range from Hitachi's own "significant investment in training engineers, construction teams and operating staff" to investment by companies eager to operate the reactors the company is planning to build - reactors which Mr Ishizuka expects will soon be granted safety approval.

BBC: Hitachi's nuclear deal still faces hurdles