Everyone (including non-solar customers) is getting moved to time-of-use billing with some sort of phase in schedule and I believe it's already required for new solar hookups. Part of CPUC's proposed replacement for NEM 2.0 combined fairly agressive TOU billing with moving credits for grid exports to an "avoided cost" model so that you get very little for exporting in mid-day when there's currently an excess of solar generation and much more in the late afternoon when there's a big mismatch between demand and renewable generation.

I think you can definitely argue about the specific values they chose, but the broad strokes make sense.