Overview
IEC TR 62898-4:2023 - Microgrids Part 4: Use cases - is a Technical Report from the IEC SC 8B that documents a structured set of use cases for microgrids as a form of decentralized energy system. Edition 1.0 (2023) explains the methodology applied to the microgrid sub‑domain (based on IEC 62913-1), defines business use cases (BUCs) and system use cases (SUCs), and provides a first‑version repository intended for review and progressive extension. The report completes the SC 8B roadmap by aligning roles, functions and interactions needed to design, operate and integrate microgrids.
Key topics and technical scope
- Methodology and framework: Use‑case methodology grounded on IEC 62913-1; role modelling using the Smart Grid Architecture Model (SGAM).
- Business and system use cases: High‑level business use cases (e.g., islanding for continuity, electrifying remote areas with renewables, local resource optimization, interconnection of microgrids) and detailed system use cases for selected scenarios.
- Role models and interfaces: Business and system roles tables, system role clarifications, and role-to‑function mappings (including DER/microgrid sub‑roles).
- Operational and technical issues: Descriptions of operational objectives, scope, and technical considerations (control, power regulation, EMS interactions) for each use case.
- Repository and templates: Informative annexes include an IEC 62559-2 template for business use cases and a UML microgrid use-case repository.
- Coordination with other IEC standards: Cross‑references and integration guidance with standards such as IEC 61968 series, IEC 61850 family, IEC TR 61850-90-23, and other parts of the IEC 62898 microgrids series, plus links to VPP and prosumer topics.
Practical applications - who uses this standard
- Microgrid designers and integrators - to align architecture and functional requirements with standardized use cases.
- Utilities and distribution system operators (DSOs) - for planning islanding strategies, disaster preparedness, and community energy management.
- DERMS/EMS vendors and system architects - to map product functions to standardized BUCs and SUCs and ensure interoperability.
- Policy makers and project developers - to define procurement, regulatory or funding requirements based on common use‑case language.
- Researchers and consultants - to evaluate scenarios, create test cases, or extend the use‑case repository.
Related standards and references
- IEC 62913-1 (methodology basis)
- IEC 61968-1 / IEC 61968-5 (DERMS and information interfaces)
- IEC 61850 series and IEC TR 61850-90-23 (DER modelling & communications)
- Other parts of IEC 62898 (Microgrids series)
- VPP and prosumer‑related IEC deliverables
This Technical Report is a practical starting point for standardizing microgrid behaviors and interactions; it provides a structured vocabulary, prioritized use cases and cross‑standard mapping to support design, implementation and policy decisions.