California already has some of the lowest per capita energy consumption in the US [1]. A good part of this is due to the mild climate where most Californians live, but some part of it choices people have made, like the widespread adoption of residential PV in cooling load dominated inland areas.

EVs are also taking hold faster in CA due to their better economics and broader cultural appeal in CA.

All these trends will lower the per capita energy consumption further without negatively affecting lifestyles.

1. https://www.eia.gov/state/seds/data.php?incfile=/state/seds/...