California¡¯s state legislature recently approved a bill requiring the state to get 100 percent of its electricity from carbon-free sources by the year 2045. It¡¯s a landmark for power sector decarbonization, and if Gov. Jerry Brown signs the bill, it will require a transformation of the state¡¯s energy system.

California already gets 29 percent of its electricity from zero-carbon wind, solar, biomass and geothermal energy, and it has already reduced statewide greenhouse gas emissions to 1990 levels. However, emissions in the state¡¯s biggest emitting sector, transportation, have barely budged this century.

That¡¯s why the state¡¯s electric vehicle market is increasingly important, and worth a close look. The latest monthly electric vehicle tracker from my Bloomberg NEF colleagues shows some important developments in America¡¯s biggest state auto market.