My calculations might be wrong, but 2.5 kW * 24 hours * 31 days is 1860 kWh, and the utility bill sitting on my desk says I'm paying about $0.10 per kWh. That'

My calculations might be wrong, but 2.5 kW * 24 hours * 31 days is 1860 kWh, and the utility bill sitting on my desk says I'm paying about $0.10 per kWh. That's $186 a month, which pays for an awful lot of vacuuming. I'm sure that they're quite efficient compared to other high-traffic websites, but this is a pretty silly way to show it.