Microsoft said it will buy 175 megawatts of wind energy from the Pilot Wind Project in Illinois in a 20-year pact. The purchase adds to the 110 megawatts of energy from the Keechi Wind Farm in Texas last year.
For Microsoft, the Pilot Wind Project energy purchase boils down to power its Chicago datacenter. Pilot Wind is operated by EDF Energy. Microsoft's purchase gives the Pilot Wind project a steady revenue stream and Microsoft gets to offset its carbon output.