Ohio-Class Subs to Shift to Electric Drive

[ETR3(SS)]

Originally Posted by Kazuaki Shimazaki II

Going to turbo-electric, there will be one big generator instead of a steam turbine and a few "service" generators with limited capacity, so the reactor's whole output can be diverted to electrical systems instead of a fraction.

I understand what you're saying that by getting rid of the steam main engines you could divert that steam to generate electrical power. You still need to generate more power to supply the demand of the propulsion train now. So you got rid of the main engines to replace them with more turbine generators to supply the demand. But most of the power generated by a reactor goes to powering the reactor systems anyway. I'm lost on how they are going to accomplish this within the limited space of a submarine hull.