okay...i knew a guy who put one of those shipping containers underground and set up a grow in it. he put diesel generators in it with a battery backup too. he said he used enough deepcycle batteries(expensive!) to fill the bed of a small truck and only got about 4 1/2 minutes to run 8 - 1000w lights before he had to fill the generator and get it started. long story short the guy had major problems, blew like 40K, and barely got a single crop.
now i know your not planning on running 8 1000w lamps but its a pretty good reference IMO. its a neat idea, ill give you that credit. but its not very plausable.
i would go outdoors if i were you in your situation. its the chaepest, easiest, and has the least impact. have multiple small patches if you can in case of misfortune.
there, thats as nice as i get @ 8am on sunday