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Google disclosed Thursday that it continuously uses enough electricity to power 200,000 homes, but it says that in doing so, it also makes the planet greener

But when it calculates that average energy consumption on the level of a typical user the amount is small, about 180 watt-hours a month, or the equivalent of running a 60-watt light bulb for three hours

“When we hit the Google search button,” Mr. Horowitz said, “it’s not for free.