I've had my core up and running for about a week now. As I am testing 7.10 Beta3 I started wondering about power draw of my system. I have a kill-a-watt meter that I bought a while ago, so I thought I would do a profile on my power usage.
My core is built on an Asus m2nPV-VM (same as Fiire Station). 2GB RAM, AMD BE-2400 low wattage (45w) processor, logisys 650w 80-plus certified power supply, a 500GB SATA drive (OS and non-crutial data), and 3x 1TB RAID5 array (total of 4 sata drives between the system drive and the 3 raid drives) I also run one case fan directly off of the power supply.
My system varies between 105-108 watts all the time (this was much higher than I expected - or at least I expected it to lower while not in use)
I guess its not bad... At $0.12/kwh, it will cost somewhere between $8.00-$9.00 each month to run 24/7 (which is worth every penny - i would pay that much for a subscription-based service that offerend half of what LMCE does), but leaves a lot of room for improvement. By the time I add 3 more MD's and 3 more touchscreen orbiters, i expect the energy usage to aproximately double (15w each for for a VIA MD and a touch-screen orbiter in 3 rooms = 90 more watts) so the cost should be between $15.00 - $20.00 each month. Again, not bad, but I don't see why that number couldn't reach about $10.00 per month (with some good power save on the core and the MD's)
Anyways, just wanted to see how my power usage compares to everyone elses and maybe get some ideas on how to reduce it.