My rule of thumb is that AC power is about a dollar per watt per year.
You've got somewhat expensive power rates. That would come out to around 10cents/kWH. I average around 7cents/kWH. A while back I pulled the specs on my equipment and added it up and I'm around $375/year on the nominal draw. Thankfully I'm not running servers at home anymore. I've contemplated building a rack mount host to run VMware ESX on for a decent FreeNAS box and to host a Linux box for some services. I will do it eventually, once I have enough of a need. Hopefully I can find or piece together a system that averages a low enough power draw to keep the cost reasonable but still has enough horsepower to perform reasonably well. I'd definitely include a RAID card and 3 of the largest 5400 RPM drives I could find, as well as a significant amount of memory. -- Scott, CCIE #14618 Routing & Switching »rolande.wordpress.com/