Data Source: California Energy Commission. California's transition to Biofuels includes biomethane, diesel substitutes, and gasoline substitutes through investments in biofuel production. Analysis by Beacon Economics
  • The number of ZEVs on-road in California reached one million for the first time in 2022. There were 1,085,119 ZEVs on-road in California as of the end of 2022, an increase of 31.8 percent compared to 2021. The increase is significantly larger than in previous years, which could be partially explained by the California’s first-in-nation ZEV regulation adopted by CARB.87 Moreover, registrations of electric and hydrogen vehicles increased by 44.2 percent and 18.8 percent, respectively.

87 California Air Resource Board. California moves to accelerate to 100% new zero-emission vehicle sales by 2035. August 25,2022. Assessed July 06, 2023. Available at:

  • Despite a slight decline of 0.7 percent in the total vehicle population (in line with the half million population decrease), the auto market in California demonstrated resilience in 2022—not only in ZEV registrations, but also the in internal combustion engine (ICE) vehicle registrations. Specifically, natural gas-fueled vehicle registration experienced the highest increase at 5.3 percent, followed by diesel-fueled vehicles with an increase of 1.3 percent. California announced plans to phase out the sale of all ICE vehicles by 2035, signaling a major shift towards electric vehicles (EVs) and other alternative fuel sources.