IEC SRD 63268:2020

Overview - IEC SRD 63268:2020 (Energy and data interfaces of users connected to the smart grid)

IEC SRD 63268:2020 is a Systems Reference Deliverable from the IEC that maps the standardization landscape for energy and data interfaces between Distribution grid users (including distributed energy resources - DERs - and Customer Premises) and other smart grid stakeholders. The document analyzes both physical (power/wiring) and logical (communication/data) interactions, shows how related standards align with the Smart Grid Architecture Model (SGAM) layers, and issues recommendations on how IEC entities should coordinate to close gaps in standardization.

Key Topics and technical focus

• Scope: Exclusive focus on Distribution grid users (excludes bulk generation and transmission-connected users) where DERs have greatest impact.
• Interface types: Identification of main physical and logical interactions between grid users and stakeholders (grid operators, service providers, market places, aggregators).
• Data management: Analysis of how grid-user related data are created, managed and exchanged among stakeholders - stressing that interface landscape must include inter-stakeholder data flows.
• SGAM mapping: Mapping of interfaces to SGAM interoperability layers - component, communication, and information (data) - and to SGAM domains/zones for consistent architecture view.
• Use cases and annexes: Detailed mappings and use-cases for DER operation, grid operator interfacing, smart metering, market interaction and EV integration (informative annexes).
• Standards landscape: Identification of IEC entities, technical committees and existing standards/technical specifications relevant to each interface and layer.
• Recommendations: First set of recommendations for improved IEC coordination and to address identified standardization gaps.

Practical applications - who uses this standard

IEC SRD 63268:2020 is a reference tool for:

• Standards developers and IEC technical committees - to identify overlaps, gaps and coordinate deliverables.
• Distribution system operators (DSOs) and utilities - to design compliant interface architectures for DERs and customer premises.
• Vendors and system integrators - to align product design with SGAM-mapped interfaces and interoperability expectations.
• Aggregators, EV charging providers, metering companies, and marketplace operators - to understand data exchange points and responsibilities.
• Regulators and policymakers - to inform policy around data governance and interoperability in distribution networks.
• Research organizations and consultants - for landscape analysis and roadmap planning.

Related standards and concepts

• Smart Grid Architecture Model (SGAM) - used as the primary framing model.
• European smart grid conceptual model (referenced in annexes).
• Smart metering and DER-related IEC technical committees’ work (mapped within the document).

Keywords: IEC SRD 63268:2020, smart grid, DER, customer premises, SGAM, distribution grid, energy interfaces, data interfaces, standardization landscape, EV integration, smart metering.