UK-based nuclear start-up Core Power aims to build a $10bn orderbook by 2030 for ship-based reactors to drive the maritime green revolution — several years before the first commercial prototypes are ready.

An experimental micro-reactor is being tested at the Idaho National Laboratory in the US but it is expected to take about eight years and $2.5bn before one is ready and regulated for fitting in a vessel, according to chief executive Mikal Boe.