Google (s GOOG) and Apple (s AAPL) aren’t the only tech giants aggressively pursuing clean energy for their data centers. On Tuesday Microsoft announced that it has signed a deal to buy wind power from a wind farm outside of Chicago for a 20-year term. The wind farm will put energy into the same electric grid that their large data center in Chicago draws from.
It’s Microsoft’s largest clean power deal (not including hydro) to date, and the wind farm — called the Pilot Wind Project and now owned by EDF Renewable Energy — will be 175 MW when finished and providing power in 2015. Microsoft said they’ll buy 675,000 MWh of wind power from the farm, which is enough to power 70,000 Illinois homes. The farm will use turbines from both GE and Vestas.
Microsoft last year signed a similar…
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