Leaving computers on all the time wastes $2.8 billion per year in the US

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Oops. Apparently all the computers in the US that are rarely, if ever, shut down at night account for almost $3 billion in wasted energy costs and “may emit up to 20 million tons of carbon dioxide.”

According to Scientific American:

“A study released last week puts a finer point on this assertion, reporting that U.S. workers waste $2.8 billion annually in energy costs by failing to shut off their PCs at the end of the work day. What’s more, machines left on during off hours may emit up to 20 million tons of carbon dioxide (C02) this year alone, roughly the equivalent impact of four million cars.”

Apparently about 50% of people leave their computers on overnight for various reasons including forgetting to turn them off, not wanting to wait for them to shut down, and so they can receive software updates. Responses were collected “from 4,743 U.S. computer users over the age of 18, about half of whom were employed.” The study also found that Germany could save $1.2 billion and the UK could save $400 million by turning off their computers.

Me, I’m a standby man myself. I always thought that the boot-up process used more energy than letting the computer sit idle for a while. 

[via The Raw Feed]

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