In September 2018, California’s state legislature passed Senate Bill SB100, requiring that all retail electricity be carbon-free by 2045. The bill increases to 60% from 50% how much of California’s electricity portfolio will come from renewable sources by 2030. In 2017, AB398 set a new GHG target of at least 40% below the 1990 level of emissions by 2030. As of 2015, about 86% of California’s GHG emissions were related to the consumption of energy.
The 2030 target also assumes a 50% reduction in gasoline and diesel used by vehicles, and a doubling of energy efficiency in existing buildings. Is that technically and economically feasible? The state used the PATHWAYS Analytica model developed by E3 Consulting to explore scenarios to achieve these goals. They concluded that a High Electrification Scenario can meet these goals at a net cost that is “relatively small” — up to 0.5% of California’s gross state product — or could even produce a net savings of 0.1% of GSP — and that’s not counting the societal benefits of GHG reductions. (Read More)