The Splendor never went dark, from what I read on it. They lost main power but still have emergency power. Emergency power is limited to essentials such as navigation equipment, radios etc. I would be impossible to have an emergency gen big enough, they have to be outside the engine room. To power the whole ship and yes most of the refers went down but they aren't essential.We're talking about worst case here and the splendor fire was bad but I have seen, thankfully not been on but see a lot worse shipboard fires