2 cpu g5, imac, sometimes an old pc or macbook, don't use electricity for much else besides light, varies but often 80-100. in berkeley. i wonder what's causing the large difference.

edit: i'm buying this http://www.amazon.com/P3-International-Kill-Electricity-Moni...

>> 0.15 * 5 * 24 * 30 * 0.12 => 64.8

if your 5 computers take 150 watts each and it's 12 cents per kilo-watt hour, then your bill would be $65

they must spend a lot of time asleep or something.