Presumably this will be a version of Rolls Royces PWR based modular reactors, which are versions of their reactors used in U.K. (and soon AUS) submarines https

Presumably this will be a version of Rolls Royces PWR based modular reactors, which are versions of their reactors used in U.K. (and soon AUS) submarines https://www.rolls-royce.com/innovation/net-zero/decarbonising-complex-critical-systems/small-nuclear-power-stations.aspx https://www.rolls-royce.com/innovation/net-zero/decarbonisin...