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Alta Wind Energy Center ( AWEC ) is located in Kern County , California , and is the largest onshore wind farm in the US . Along with Shepherds Flat , this facility also powers Southern California Edison through a 25-year power purchase agreement . Currently , AWEC has 600 operational units sitting across 3,200 acres of land , with turbines having been supplied by Danish manufacturer Vestas . It doesn ’ t stop there , however – set upon its goal of reducing CO2 emissions by more than 5.2mn tonnes each year , the project ’ s total planned capacity is 3,000MW . AWES was developed by Terra-Gen .

SEPTEMBER 2018