Don't blame the fridge for your steep power bills - an Australian consumer agency study has found that videogame consoles and plasma flat-screen TVs are major electricity guzzlers, even when left on stand-by. The recent study by Choice said Sony's Playstation 3, closely followed by Microsoft's Xbox 360 and plasma television sets, consumed the most power out of a list of 16 electronic devices tested, including laptops, stereo systems and DVD players.

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