I live pretty near to renewable energy sources (dam+windmills), so my electric rates are cheap.
Currently they are $0.072
If I upgraded my connection to commercial AND used over 10,000 KwH, it'd only be $0.048..which is what? 1/4 the national average?
How big of a mining rig would that be?
Erm, it'd be a huge cluster for 10,000 KwH. At 150 watts per card, 4 cards per machine..10,000 kWh/month requires 13.888 kWh/h (lawlz, kWh per hour..kekekekeke), anyways, 24 machines about.