Category: Grid Modernization
As advanced inverters and other distributed energy resources (DER) continue to expand their functionality requiring additional regulatory requirements UL leads the industry in preparing manufacturers, regulators, utilities, and other stakeholders with what new requirements are applicable to gain market access. This presentation will provide an overview of what CA Rule 21 contains as the Source Requirement document (SRD) for DER interconnection within the state of California. In addition, we will cover the requirements implemented by the CPUC and CEC to qualify devices for the standardized communication requirements outlined in phase 2 of CA Rule 21. In 2014, a process was created to promote and accelerate the integration and deployment of smart inverters and related DER devices with gird support functionality. General grid support functionality for autonomous functions was the focus of Phase 1 of the California Solar initiative (CSI) and became a requirement in September 2017. Communication standardization between the DER(s) and utilities was made a priority starting in 2017. Phase 2 of the CSI and Rule 21 combined the requirements of the IEEE 2030.5 Smart Energy Profile Application Protocol Standard and the Sunspec Common Smart Inverter Profile (CSIP) Test Protocol. California requires that testing of devices (inverters, aggregators, and other DER devices) be conducted by a qualified national recognized test laboratory (NRTL) and that a Sunspec qualified test tool is utilized during testing. This presentation will provide an overview of the requirements, process, steps for testing, and certifications needed to evaluate these devices for this new interoperability requirement further advancing gird support functions of DERs.
Scott Picco– Business Development Manager, UL LLC