Overview
IEC SRD 62913-2-4:2019 sets out generic smart grid requirements tailored to the electric transportation domain, as part of the broader IEC SRD 62913 standards series. Developed by the International Electrotechnical Commission (IEC), this reference document provides a systems approach, utilizing "Use Cases" to capture common smart grid scenarios. These scenarios support subsequent standardization activities, particularly relating to electric vehicles (EVs), charging infrastructure, and integration with the smart grid.
The standard builds on methods and tools established in IEC SRD 62913‑1, focusing on repeated usage patterns-like EV charging and bidirectional energy flows-to define key requirements for system interfaces, information exchange, and performance expectations. It is applicable to land-based electric transportation: private and operational EVs, plug-in hybrids, buses, lorries, and motorbikes.
Key Topics
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Smart Grid Use Cases: The document formalizes scenarios that reflect the interaction between electric vehicles, charging stations, grid operators, and service providers. Notable Use Cases include EV charging, smart charging, bidirectional power transfer (vehicle-to-grid), demand response, and ancillary services (e.g., frequency containment).
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System Interfaces & Data Exchange: Requirements emphasize interoperability at all interface points-between EVs, Electric Vehicle Supply Equipment (EVSE), grid management systems, and service operators. Key aspects include communication protocols, identification procedures, metering, and security specifications.
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Role Model and Stakeholder Collaboration: The standard identifies and defines major roles in the electric transportation ecosystem:
- Charging Service Operators (CSO)
- Distribution System Operators (DSO)
- E-mobility Service Providers (EMSP)
- Users (individuals, fleet operators)
- Meter and Flexibility Operators
- E-mobility Clearing House Operators (E-MCHO)
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Business Analysis: The requirements are grounded in a business-driven analysis, supporting interoperability, high-value service provision, and flexible energy exchange. This includes facilitating new business models such as EV-as-a-service, mobility services, and peer-to-grid energy participation.
Applications
IEC SRD 62913-2-4 enables a broad range of practical applications in the context of electric transportation and smart grids, including:
- Development of Interoperable Charging Infrastructure: Standardizing data and communication interfaces for public and private charging networks, allowing seamless EV charging across different service providers and locations.
- Smart and Flexible Charging Operations: Supporting advanced features like dynamic charging scheduling, load management, and price-responsive charging activities that optimize grid performance and energy costs.
- Vehicle-to-Grid (V2G) and Bidirectional Flow: Defining requirements for enabling EVs to both draw and supply energy to the grid, supporting ancillary services and improving the integration of distributed energy resources.
- Improved User Experience and Service Models: Enabling EV users and fleet operators to access a variety of mobility and energy services, including easy authentication, roaming between charging networks, reservation systems, and consolidated billing.
- Support for Grid Operators: Assisting utilities and system operators in planning and operating grids, accounting for the high variability and flexibility of EV charging and discharging patterns.
Related Standards
- IEC SRD 62913-1: Methodology for defining generic smart grid requirements using the Use Case approach.
- IEC SRD 62913-2-3: Focused on distributed energy resources, relevant due to the DER-like behavior of EVs.
- IEC 61851-1:2017: Electric vehicle conductive charging system – general requirements.
- ISO 15118 (all parts): Defines vehicle-to-grid communication interface and protocols.
- IEC 63119 (all parts): Protocol for roaming services between different e-mobility operators.
- IEC 61980-1: Standard focused on wireless power transfer for electric vehicles.
IEC SRD 62913-2-4:2019 is a critical resource for manufacturers, utility providers, system operators, technology developers, and policy-makers involved in the integration and standardization of electric transportation within the future smart grid ecosystem. Its approach fosters interoperability, innovation, and reliability across the rapidly evolving e-mobility sector.