I save these threads that start out "First power bill for my 6 GH/s rig" and end up about volkswagen vans, spark plugs, thermodynamic theory and oil coolers...to read when I have had too much to drink.

Based on the cost/performance I would guess somewhere in the $0.10 per kW/h that the OP is paying. Anyone else have a guess if the OP doesn't share? Or did I miss the actual numbers?