In December 2022, the California Public Utilities Commission (CPUC) approved a successor tariff for solar customers, the Net Billing Tariff, now known as Solar Billing Plan (SBP). All new solar customers will be placed on SBP as part of an effort to reduce cross-subsidies for solar customers on one of the legacy Net Energy Metering (NEM) tariffs.
SBP aims to promote grid reliability, incentivize paired solar and battery storage, and control electricity costs for all Californians.
SBP is set to begin April 2024 for residential customers and June 2024 for commercial customers.
With SBP, solar customers will pay the retail value for the energy they consume from the grid based on the price of their time-of-use (TOU) rate. Under SBP, energy exported to the grid will be priced at its hourly and seasonal value to the grid. One of SBP purposes is to incentivize customers to install battery storage so they can store electricity produced by their solar array in the daytime to use or export to the grid in the evening, at the most valuable and expensive time to use electricity.
Sending extra energy during sunny times will result in a lower financial credit, compared to a higher financial credit during peak hours. Export rates can be found here.