Vladimir Putin attended the keel-laying of the new nuclear icebreaker Stalingrad, calling Russia the only country able to mass-produce such ships. The sixth Project 22220 vessel, it’s the world’s most powerful, built for year-round Arctic navigation.
Source -> https://xcancel.com/SputnikInt/status/1990844704767033524#m
Basically unlimited power. Epic! I wonder what the nuclear exposure levels are for longer voyages.