Do you need to turn off your PC at night?
October 1, 2009
If you’re a Windows user, just set up your PC to “hibernate” overnight. “Hibernate” powers down your monitor to about 5 watts of energy and your PC to 2.3 watts—virtually the same as turning your PC off (your monitor uses zero watts when turned off; more on this below). Either way, you save as much as $90 a year in power costs compared to a PC left on with a 3-D screen saver running.
Read the full article and find out the answer to some “power” myths.