I did not realize the state's goal is 33 percent of energy by wind by 2020. That sounds aggressive!

Today, the Altamont Pass Wind Farm is one of three major wind resource areas in the state, along with Tehachapi and San Gorgonio. The three regions combined provide 95 percent of the state’s commercial wind-powered electricity. As of 2012, five percent of the state’s power came from wind, and the goal is to ramp that number up to 33 percent by 2020. Altamont Pass is a huge part of this project: At over 4,000 turbines, it has the largest concentration of wind turbines in the world. The problem is, most of these turbines are over three decades old, and relative to their newer counterparts, don’t produce nearly as much power and are a greater threat to wildlife.