CA Rule 21 and DER End-End Interoperability

Led by California and the IEEE 1547 Work Group, the electric utility industry is rapidly developing a standardized method to communicate with and manage the growing penetration of DER assets at the distribution level. The California PUC, in conjunction with the IOUs and vendor community, has established a set of procedures for ensuring that the smart inverters meet both performance and communications requirements between utilities and the smart inverters.

This white paper looks at the current plans and how well they will ensure the desired performance of smart inverters under the direction of a utility DER management system.

CA Rule 21 DER Whitepaper
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