Net metering: 1:1, NBT & NEM 3.0

Net metering decides what your exported solar is worth — and it changes the optimal strategy completely. SolDial models all the major schemes.

1:1 net metering

Exports are credited at your import rate — the grid acts like a perfect battery. The best move is usually to keep your Powerwall full and export your solar, rather than cycle the battery and eat round-trip losses.

Net Billing Tariff (NBT)

Exports are credited at a lower rate than imports, so self-consumption and battery time-shifting become more valuable than exporting.

California NEM 3.0

Under NEM 3.0, export value follows California's avoided-cost (ACC) schedule — near-zero midday and spiking in the evening peak, highest in summer. SolDial ingests these schedules for all three major IOUs (PG&E, SCE, SDG&E). It's vintage-aware: your export values are fixed for roughly nine years from your interconnection, so SolDial locks to your PTO year (Net Billing took effect in 2023). With a battery, the winning play is to charge from cheap midday solar and discharge or export into the evening peak — never export midday.