There was an interesting article Tuesday in the Wall Strreet Journal: "Renewable Energy Cannot Run the Cloud."
Facebook stores 100 petabytes (100 million gigabytes) of data at several data storage facilities around the US. Its newest is a 300,000 square foot facility in Prineville, Oregon. The Prineville facility uses as much electricity as 28,000 homes. If it were powered by wind, that would take windmills covering about 6 square miles.
Apple says it will use solar to help fuel its 500,000 square foot facility in Maiden, NC. An engineer on Amazon's web services team calculated that to power it entirely by solar would take 6.5 square miles covered completely with solar panels.
Worldwide, data centers now consume more electricity that either Mexico or Australia.
I wonder if it would affect global warming if the outback were covered in solar panels? Except it gets hot out there. Solar needs sun, but heat cuts it output. And engineer-type where I am working some in AZ says that their little solar panels put out about 5% less in the summer than in winter.
Anyway, anybody an engineering type who could argue with the above numbers?


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programs. Not themselves. 