California solar calculator

Live production from NLR (formerly NREL) PVWatts V8. California uses NEM 3.0 — solar exports earn avoided-cost (~5-8¢/kWh average), well below retail. Battery is central to the economics here. The three major IOUs (PG&E, SCE, SDG&E) are covered; municipal utilities like LADWP (parts of LA) and SMUD (Sacramento) are not yet covered. Defaults: south-facing roof mount, 20° tilt, 14% losses.