There is a police auction site I frequent "Property Room" that has "Commercial" equipment being auctioned. I've had good luck on this site and if you have a greenhouse, you might want to check out what they have http://www.propertyroom.com/c/tools-and-equipment_commercial-nursery
Those grow lights draw some serious juice. Hell I would have to grow weed and sell it to support the electric bill. No thanks, I will depend mostly on Mother nature. Good site though.
Now is my turn to give a little back, ..... I was joking ..... I know how most of these fools get caught as well. ..... abnormal, extra-ordinary electricity usage. As if the cops can't easily get records on average electric usage going back multiple years, in fact in some cases computer programs automatically kick addresses out that are unusually high.