This is one of the key findings from the 8th edition of Next 10’s California Green Innovation Index, released in late June. In addition to the mind-blowing solar statistics, zero emission vehicle (ZEV) adoption rates have also increased, renewable energy sources served 25% of California’s retail electricity sales, and it generated 20.1% of the state’s total electricity in 2014 — up from 12% in 2009.
— source cleantechnica.com