Interconnection & Net Metering

The Diablo Innovation Alliance (DIA) supports the current reform of Electric Rule No. 21 (Rule 21) that the California Public Utilities Commission (CPUC) and the fourteen settling parties, including PG&E, SCE, and SDG&E, of the Distribution System Interconnection Settlement Process have undertaken.

The DIA also supported the CPUC Decision Regarding Calculation of the Net Energy Metering Cap (D. 12-05-036).  

Electric Rule No. 21 Reform 

In 2012, the California Public Utilities Commission (CPUC) issued a decision, Adopting Settlement Agreement Revising Distribution Level Interconnection Rules and Regulations Electric Tariff Rule 21, which approved the full set of Phase I reforms proposed via a multi-party settlement to Electric Rule No. 21 (Rule 21). Rule 21 is a tariff (or set of regulations) that describes the interconnection, operation, and metering requirements for distributed generators to be connected to a utility’s distribution system. The CPUC anticipates that the significant reforms achieved in Rule 21 will advance the Commission's goals of ensuring a timely, non-discriminatory, cost-effective, and transparent interconnection process for distributed generation in California. Phase II of proposed reforms is currently under way.