SAE International has announced revisions to SAE J3072 Standard: Interconnection Requirements for Onboard, Utility-Interactive Inverter Systems and SAE J2847/3 Recommended Practice: Communication for Plug-in Vehicles as a Distributed Energy Source. The updated EV charging documents will play a role in advancing automotive requirements for distributed energy resources (DER) projects.
The revisions to SAE J3072 establish requirements for a grid-support inverter system function to better align with the changes to inverter requirements that were introduced by major revisions to IEEE 1547 and IEEE 1547.1. With this update, utilities or local jurisdictions can establish procedures for a site to be approved for the interconnection of EVs with onboard inverters based partially on testing and certifying SAE J3072 and other required standards.
Hank McGlynn, who led the SAE J3072 Standard update, said, “In July 2017, the California Public Utility Commission issued a rulemaking that, in part, asked if and how the commission should consider issues related to the interconnection of EVs and related charging infrastructure and devices. We established a special working group to consider SAE Type V2G-AC interconnection issues and the use of SAE J3072, which documented recommendations and potential expansions. This revision to SAE J3072 addresses the recommendations noted by this report relative to the 2015 version.”
The revisions to the SAE J2847/3 recommended practice better align with the latest version of IEEE 2030.5 and IEEE 1547. IEEE 1547 has clarified the functional requirement standards for connecting DERs to the utility electric power systems and IEEE 2030.5 communications protocol, which has been updated to fully implement IEEE 1547 requirements.
Gordon Lum, leader of the SAE J2847/3 updates, said, “With this updated document, the promise of using an EV as a DER is now closer to reality.”
Source: Green Car Congress