Detroit News: California wants 1 million battery electric and plug-in hybrid vehicles on the Golden State’s roadways in a decade. The nation’s largest state unveiled a new plan for its energy future two days in advance of the Air Resources Board considering a first-in-the-nation rule requiring that a third of electricity come from clean, green sources by 2020. That will ensure that vehicles like the Nissan Leaf, Chevrolet Volt, electric Ford Focus and plug-in electric Toyota Prius have lower …