I completely disagree with everyone who says 'just pay your bill and nothing will happen.'
I pay my bill every month on time, and we went from 3 1000w hps and 2 400w mh,(about $550) to 5 1000w hps (about $700) and within a month I had the electric company come, turn off my power for 1-2 minutes while they switched my meter box out to replace it with a new one. Then the same guy came out 3 times a week for 2 weeks to check the meter and make sure the same consumption was going on. (Electricity company told me all of this)
When I called the electric company to see what was going on, why there was always someone comin by and why I hadnt received a notice or anything, they said that when my meter reached about 113 kw / day (I believe that was the number) it sent out a red flag to the company saying too much energy was being taken in, and to check the meter to see if something was wrong with it. I told the guy I had 4 other roommates and that at any given time someone was always home using something. He then informed me that for the energy we were using, it would have to be a family of 10, all of them never leaving the house, for that much energy to be used.
I immediately went back to 3 1000w (fucked myself btw) and went 16/8 in my mother/veg room. I havent seen him since then, but then again I havent called, and I only saw him the one time when he turned my power off and I damn near had a heart attack right on the spot.
So.... bullshit they dont care.... or.. I'd like to hear from someone whos running a REAL, FULL set up without extra juice coming in from an outside source, or rigging their box, and see what they have to say.