OK, so you know that I sometimes feverishly try to defend the logic of movies that I love. Well I love this movie, seen it so many times I just don't know. But holy shit does it have some fucked up science in it. I clearly remember the scene where he was braising the heavy cables to the wall toward the end, to get the "power", lol, and I remember thinking that they do uses solar panels in this fashion.
But the most important thing about it is that there was NO POLARITY!! How can you run any AC or DC powered components with just positive or negative, well you simply can't.
Also, and probably the most important wacky science/engineering mess up is the "reactor" powered ship!!
I don't know if most  people know how a nuclear reactor powered submarine works, but it is basically a steam engine because thats all the reactor does is turn water into steam which powers turbines and that powers the generators. all of the motors on those subs and aircraft carriers are electric.
So back to our movie ship. You are telling me that A:there was enough room to have a crap load of water for cooling and for the steam turbine. and B: When he pulled out the reactor rods, the ship shut down as if he was pulling out the batteries, LMAO, when of course the steam turbine that they somehow found space for would still be moving, and there would be shit tons of batteries for storage as a buffer between the steam generator and the ship power distribution grid.

Oh, and  Mike is funny as shit when he is shit faced, LMAO, us Mikes are always the life of any party, lol.