For the 12 months ended June 2019, the average annual Residential electricity bill in California was $1,247, or 25.5% higher ($253) than the comparable bill in 2010 (the year the AB 32 implementation began with the Early Action items). In this same period, the average US (less CA) electricity bill for all the other states grew only 2.7% ($37).
Residential bills, however, vary widely by region, with the estimated annual household usage in 2017 as much as 55% higher in the interior regions compared to the milder climate coastal areas.