Net Metering:

In December 2022, the CPUC adopted the Net Billing Tariff (NEM 3.0), replacing NEM 2.0 for new customer-generators submitting interconnection applications on or after April 15, 2023 (CPUC Decision 22-12-056). NEM 1.0 and NEM 2.0 customers are grandfathered for 20 years.

California – Energy Efficiency Policies
Arizona – Energy Storage Policy