Ultimate guide to reducing your PC's power consumption

Just like the song says, it's not easy being green. At least, not in some areas.
Spending ages sorting out your rubbish according to seemingly arbitrary rules and then reading that it's not actually recycled but shipped to some third-world landfill is enough to make you wonder if it's worth the effort.
Fortunately there are simpler ways to make a very real impact. A 300W PC system left on all the time with no power management will create around 1,400kg of CO2, as well as adding £289 to your annual electricity bill (assuming a charge of 11p per kWh).
You may be able to cut this by a third, even if the system remains powered up all the time, making a positive impact on the planet and saving yourself close to £100. Even tiny changes can have significant effects: here's what you need to know.

Source -
The ultimate guide to reducing your PC's power consumption | News | TechRadar UK

Nice article. Done, done and done...before I read this article.

Windows Vista and 7 power saving modes is the #1 reason I switched over, good find!