Category: Grid Modernization
California is undertaking a landmark effort to standardize the communications between utilities and DER assets. The effort is part of the Rule 21 for DER interconnection and is defined in the Common Smart Inverter Profile for IEEE 2030.5 (CSIP). The SunSpec Alliance has designed and is managing a test and certification program to insure that DERMS communications servers, aggregators, building EMS and smart inverters implement the IEEE 2030.5 communications protocol to standardize communications. The deadline for certification was set at February 22, 2018 (though it may be extended) and by SPI 2019, we should start seeing some indications of how the program is working.
This program is being watched worldwide as the largest and leading-edge effort to date to scale the integration of DER assets into grid operations. Utilities and policy makers want to know if the program works so they can use it as a model or to inform their own DER integration efforts. While some vendors view the standardization as a mandatory "checkbox", others view the adoption of IEEE 2030.5 as a strategic advantage with applications beyond CA. They have a strong interest in the success of the CA efforts.
SEPA published a landmark report in November or 2017, the "DERMS Requirements” document, dated November 13, 2017, from the "Group Management Working Group". This document assumes the use of standard communications protocols from a DERMS to a smart inverter as described in Chapter 1.4, "Control Requirements". This paper can inform future revisions of the DERMS Requirements document based on actual field experiences and lessons learned.
This talk will review the key aspects of the communications requirements in CA Rule 21 and summarize the progress to date in meeting the requirements and achieving utility DER integration objectives. It will also identify gaps in the program and lessons learned so far.
James Mater– Co-Founder and General Manager, Smart Grid, QualityLogic, Inc