As of 2017 California is at 50.45% carbon-free electricity: https://www.energy.ca.gov/almanac/electricity_data/total_system_power.html https://www.energy.ca.go

As of 2017 California is at 50.45% carbon-free electricity: https://www.energy.ca.gov/almanac/electricity_data/total_system_power.html https://www.energy.ca.gov/almanac/electricity_data/total_sys... That's summing up nuclear, large hydro, and renewables excluding biomass from the California Power Mix column.