BrigitteLin

vga7970x47(asus cu top, sapphire dualx, giga oc)
total 12000w with 1000$usd/month electric bill
31,5ghash
With that sort of electric bill you would be better buying a diesel generate for that get a converter for it and run of cooking oil then you can simply goto our local chip shops ask them for their used oil filter the oil out through a filter system free energy. Or you could get some converters for wind power in their too to produce power back to company

12,000w x 24 x 30 would be ~8,600kwh per month. That means you'd have to be paying $0.12/kwh to pay $1000/month. That is a lot of electricity to be paying for 30GH/s....