"With a reactor, if it breaks down you got real problems; with oil you can have many separate generators."
So when it's the Russian heavy cruiser with aircraft that's obsolete technology, when it's us it is a sensible tradeoff of availability versus refuelling. (Not The Reg I hasten to add, just our more jingoistic tabloids.)
Others have commented on the substitution of "transformer" for "inverter" but I will just mention in passing that Robert Peary was the one who lost a number of toes to frostbite while exploring the Arctic. Getting stuck in the Channel due to fog might be a kind of nominative determinism.