Thorium is a promising fuel for next-generation reactors because of its abundance, but the transition from uranium faces challenges because of the need for new fuel fabrication, recycling and regulatory systems, James Walker, chief executive officer of US-based nuclear technology company Nano Nuclear Energy, told NucNet

Walker said thorium is a promising prospect that faces scientific and structural hurdles. He said government support will be essential for commercialisation.

He said that despite renewed global interest, the technology remains far from commercial readiness and “is more of a long-term opportunity than an immediate reality”.

Thorium reactors have the advantage of “a positive waste profile”, Walker said.