I pay 5 cents a kwh. Thanks everyone for the ideas and advice. For those of you who mention the noise level of asic based solutions there is a cheap solution. My brother use to have a bitmain mining bitcoin and he built a sound suppression chamber using and igloo cooler, duct tape, and some flexible duct work. Worked like a charm and cut the noise level to about 50% less. He ended up building some for a few of his friends.