A £40m facility to aid development of advanced nuclear technologies will be built in north Wales by the Welsh and UK governments.
It's part of a £200m UK wide plan to drive down the costs of nuclear energy, develop new technologies and encourage more women to work in the industry.
Ministers said a so-called Nuclear Sector Deal would secure the UK's diverse energy mix and lead to cheaper energy bills.
A commitment was also made from the industry to reduce the cost of new nuclear build projects by 30% by 2030, and the cost of decommissioning old nuclear sites by 20% by 2030.
