Power Consumption of PC, Wii, XBOX 360 and PS3 Compared
 

we're looking at power consumption levels of each console. Are any of these consoles power-hogs? Is the tiny Wii really that much more efficient than the big boys? Most likely the results of these tests won't sway your judgement, but they still may be interesting to look at.

http://www.hardcoreware.net/reviews/review-356-1.htm

Wii numbers are really really low...

is his meter correct? :) my PC uses 18W when turned off (OFF!) and plugged into wall socket