每次google搜索消耗的能量=一个60W的灯泡亮17秒。全球数据中心可能占用全球电力消耗的1.3％，谷歌占全球大约0.013％的能源使用。2011年估计，谷歌使用~20万户家庭的持续能量消耗。谷歌世界各地的数据中心用~260万瓦=四分之一核电厂的输出！加入Webplus.com //@爱吃鱼的大螃蟹:创新公司才是真能引领未来
http://techland.time.com/2011/09/09/6-things-youd-never-guess-about-googles-energy-use/
Sept. 09, 2011
6 fun facts on Google’s energy use:
Google uses enough energy to continuously power 200,000 homes
Google’s many data centers around the world burn through 260 million watts—one quarter of the output of a nuclear power plant—the New York Times reports. The company had been cagey about revealing energy usage stats in the past, probably because it didn’t want to reveal to competitors how quickly its data centers were growing. It’s no longer a secret that Google needs a crazy amount of data centers to keep things running smoothly.
Google accounts for roughly 0.013 percent of the world’s energy use
Data centers in general are responsible for 1.3 percent of the world’s electricity consumption, according to one estimate, and Google says it accounts for a mere one-hundredth of that statistic. Do the math. The company claims that its data centers are twice as energy-efficient as most others.
One Google search is equal to turning on a 60W light bulb for 17 seconds
Google says it spends about 0.0003 kWh of energy on an average search query, translating to roughly 0.2g of carbon dioxide. Related fact: searching the web 100 times is equivalent to drinking 1.5 tablespoons of orange juice, Google says. That’s hard work!
YouTube can stream for three days on the energy it takes to make a DVD
That stat includes manufacturing, packaging and delivery of the DVD, Google says. One minute of streaming YouTube video consumes 0.0002 kWh of energy, which is about the same amount of energy your body uses in eight seconds.
One year of Gmail is as efficient as a message in a bottle
Google’s just getting silly with this statistic. With the 2.2 kWh that each Gmail user demands per year, Google says you could chug a 750 mL bottle of wine, stuff a letter into it and toss it into the ocean (trip to remote island not included).
Google’s carbon footprint is zero (after offsets)
No, Google doesn’t get all of its energy from wind farms and solar panels. But to make up for the 1.46 million metric tons of carbon dioxide that Google emits every year—mostly from purchased energy to power its data centers—the company buys and generates its own renewable energy or purchases carbon offsets (essentially, funding green efforts elsewhere). The company invests in enough renewable energy to power more than 350,000 homes.
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