IEC TS 62898-1-2023 PDF

Full title and description

IEC/TS 62898-1:2017/AMD1:2023 (Ed. 1.1) — Microgrids — Part 1: Guidelines for microgrid projects planning and specification. This consolidated Technical Specification provides high-level guidance for planning alternating-current (AC) microgrid projects, covering resource and load analysis, DER planning, interconnection, control, protection and communications, and project evaluation.

Abstract

This Technical Specification gives guidance for planning AC microgrids at low or medium voltage. It addresses classification of microgrids (isolated and non‑isolated), application and resource studies, generation and load forecasting, high‑level technical requirements for distributed energy resources (DER), connection to distribution systems, and requirements for control, protection and communications as part of microgrid project evaluation. DC microgrids are excluded.

General information

• Status: Published / Active.
• Publication date: 30 August 2023 (consolidated edition 1.1, incorporating Amendment 1, 2023).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.240.01 — Power transmission and distribution networks in general.
• Edition / version: Edition 1.1 (IEC TS 62898-1:2017 + Amendment 1:2023 — consolidated).
• Number of pages: 78 pages (consolidated CSV edition).

Scope

The document applies to AC microgrids with loads and distributed energy resources at low or medium voltage. It gives planning and specification guidance for both isolated microgrids (no connection to a wider power system) and non‑isolated microgrids (able to operate both grid‑connected and in island mode). The specification excludes DC microgrids and focuses on project‑level planning topics including resource assessment, forecasting, DER and power‑system planning, and interfaces with distribution networks.

Key topics and requirements

• Microgrid classification and operating modes: isolated and non‑isolated (grid‑connected and island).
• Application and resource analysis: site energy needs, renewable resource assessment, and generation forecasting methods.
• Load forecasting and demand profiling for planning and sizing DER and storage.
• DER planning and microgrid power‑system planning: sizing, siting, and coordination of generation and storage.
• High‑level technical requirements for DER interconnection and microgrid connection to distribution systems (power quality, protection interfaces, operational limits).
• Control, protection and communication system requirements: EMS concepts, control hierarchies, protection principles and communications needs for reliable operation.
• Project evaluation and assessment: technical, operational and economic considerations for microgrid project feasibility.

Typical use and users

Used by utilities, distribution system operators (DSOs), microgrid developers, consulting engineers, project planners, equipment manufacturers, regulators and researchers to define planning requirements and high‑level specifications for AC microgrid projects, to ensure interoperability with the upstream network and to guide protection/control/communications design decisions.

Related standards

IEC TS 62898 is a multi‑part series; closely related documents include: IEC TS 62898‑2 (Guidelines for operation) — operation, EMS and commissioning guidance. IEC TS 62898‑3‑1 (Technical requirements — protection and dynamic control) — protection principles and dynamic control requirements. IEC TS 62898‑3‑3 (Technical requirements — self‑regulation of dispatchable loads) — load‑based stabilization techniques. The series also references general installation and safety documents (for example IEC 60364 series) for LV installation requirements.

Keywords

Microgrid, distributed energy resources (DER), energy storage, islanding, grid‑connected, planning, forecasting, control, protection, communications, AC microgrids, microgrid project evaluation.

FAQ

Q: What is this standard?

A: IEC/TS 62898‑1:2017/AMD1:2023 (Ed. 1.1) is a Technical Specification that provides guidelines for planning and specifying AC microgrid projects, consolidated with Amendment 1 published in 2023.

Q: What does it cover?

A: It covers microgrid classification, resource and load analysis, generation and load forecasting, DER and power‑system planning, high‑level requirements for DER interconnection, microgrid connection to distribution systems, and requirements for control, protection and communications — but it excludes DC microgrids.

Q: Who typically uses it?

A: Utilities, DSOs, microgrid developers, planners, consultants, OEMs and researchers use it to shape project specifications, ensure safe interconnection and to align protection/control and communications strategies for AC microgrids.

Q: Is it current or superseded?

A: The consolidated edition incorporating Amendment 1 (Ed. 1.1) was published in August 2023 and is the current published Technical Specification for Part 1; check national and IEC catalogues for any later updates before relying on it for compliance or procurement.

Q: Is it part of a series?

A: Yes — IEC TS 62898 is a multipart series addressing microgrid planning, operation and technical requirements (for example Parts 2, 3‑1, 3‑3, etc.); Part 1 is the planning/specification guideline and should be used together with the other parts as appropriate.

Q: What are the key keywords?

A: Microgrid, DER, storage, islanding, grid connection, planning, forecasting, control, protection, communications, AC microgrid.