English to Chinese Tech/Engineering IT (Information Technology) green energy

What do a tree-hugging hippie, ***a die-hard survivalist with a year's worth of Campbell's soup***, and a sensible bill-paying adult have in common?
If you were expecting a dirty joke, sorry to disappoint (this is PCWorld, after all). The correct answer is: They don't like to waste electricity. Maybe you're worried about peak oil and wasting natural resources, maybe you want your tech to work on the power you get from your home generator, or maybe you just want to save a few bucks--either way, we have a few tips, tricks, and tech toys that can help you cut down your power usage.