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NIST, SEPA Develop Interoperability Profile for Integrating Electric Vehicle Charging with Grid
SEPA's Interoperability Profiles Task Force, led by NIST’s Cuong Nguyen, published its Interoperability Profile for Electric Vehicle Fleet Managed Charging, intended to facilitate the integration of electric vehicle (EV) charging stations with the grid. The profile was developed under a cooperative agreement with NIST and is intended to help meet the pressing need for this infrastructure.
This interoperability profile seeks to implement the EV Fleet Managed Charging Use Case, also developed by SEPA under the cooperative agreement. The use case includes a business case, describing needed functionality and interactions. The use case also has two scenarios for information exchanges between EV charging station management systems and the grid's distribution system operators:
- Direct exchanges between the grid's distribution system operators and EV charging station management systems
- “Aggregator mediated” information exchanges between the grid's distribution system operators and EV charging station management systems
The Interoperability Profile for Electric Vehicle Fleet Managed Charging maps technical requirements from the use case for information exchanges using smart grid standard communication protocol IEEE 2030.5-2018, including its communications and information model requirements. In the interoperability profile, information exchanges were characterized to support communication between the grid's distribution system operators and EV charging station management systems.
The Interoperability Profile for Electric Vehicle Fleet Managed Charging is intended to inform the industry, enable a common language, help stakeholders understand the information exchanges needed to manage EVs as grid assets, and aid the development of conformance testing.
The industry is considering developing a complementary profile for the EV-managed charging use case. This profile would allow organizations in different standards ecosystems to provide the same grid functionality, thereby enhancing EV and utility integration across more platforms.