Gas turbines now, nuclear power for energy-heavy ships

What power plants will support larger and more power-hungry warships?

Gas turbines remain rugged and practical, while nuclear propulsion becomes more attractive for large ships that need sustained power for lasers and railguns.

Gas turbines are expected to remain common because they are rugged and supportable. Reliable power under damage matters alongside the amount generated. Nuclear power remains a possibility for larger ships carrying lasers and railguns. Small modular reactors are mentioned among the options, with concerns about protecting a reactor in a smaller hull left unresolved.