well theirs lights already in the storage unit, and the one my sister owns has a hps bulb for a light in it, not to mention a few plug ins, but like i said this is a huge risk, so no way in hell you could run 1000's of watts without someone noticing.
just a bad idea, maybe someone does it and has done it for 20 years without getting caught, but from the way I see it this is a bad idea.
And, possibly you could use a generator if you could somehow exhaust the fumes/heat out of the unit, but then we get back to sound/smell, this is just a plain no go, unless you plan to run a rack of cfls with batteries running them, completely steatlh.
gl and happy new years!