Hey there. You would probably get a few more results asking this in some other sections of the site. My best guess would be in the legal edge section.
As for your question I can say that here the power companies
here will squeal if they think your using way more electricity than you should be. You might try some of those LED grow bulbs, I'm pretty sure that I have seen a few ads for them on this site. They make a lot of light and don't use much power. I don't have any personal experience with them(too fuckin expensive!) but I have heard good things.
Don't hold me to this, as I very well might be wrong but I think the LED lights use around 4 watts and make the same light as a 120 watt bulb. So you could use several of them and make enough light while being pretty inconspicuous with power use.
Also, try swapping all the lights in your place with energy efficient ones, that will shave the power bill quite a bit - and how can that possibly be bad?
Hope this helps, but again, check around before taking my word for it there are a lot of people here that know waaaaaaaaaaaaaaaaaaaay more than I do.