I'm in the Bay Area. Net electric bills for the year are $0 or <$0. Hard to compare to 'before' because the EVs were added after solar, but my next door neighbor with a somewhat larger house, no EVs, and both gas and electric has $1200 energy bills in the winter. I don't think ours would have been that high, but at least half that.

Don't expect net metering to exist forever. As more and more people install solar, I'm expecting utilities to switch to the cost of a hookup plus net metering.