Just checked my new HTPC for power usage. At boot it tops out at 143.3 watts which is 50 less than the original machine only slightly more than what the original did at idle. At idle this machine only uses a (comparitely) tiny 106. Not as low as Jeff Atwoods, but I have 4 hdd’s, one of which is a SSD. Do SSD use more power than regular HDD? I was hoping for about 80 watts but it is still good.
The S3 standby mode is considerably more hovering around 6.6-7.5 but I do have a remote control sensor attached drawing current at all times. Recovery from it is considerably quicker too.