IEC 62933-1:2024

Overview

IEC 62933-1:2024 is the latest international standard developed by the International Electrotechnical Commission (IEC) that defines the vocabulary for Electrical Energy Storage (EES) systems. This second edition updates and replaces the first edition published in 2018 with comprehensive technical revisions. It standardizes terminology essential for understanding EES system components, planning, installation, operation, test methods, environmental concerns, and safety aspects. Applicable to grid-connected systems capable of extracting, storing, and supplying electrical energy, this standard supports interoperability, consistent communication, and improved decision-making in the electrical energy storage industry.

Key Topics

• EES Systems Classification: Defines fundamental concepts and categories including long-duration, short-duration, hybrid, and emergency applications, facilitating clear differentiation across diverse EES technologies.

• System Specifications: Covers crucial parameters such as duty cycles, points of connection (POC), service life, energy efficiency, and step response performances, which are vital for designing, evaluating, and operating EES systems.

• Planning and Installation: Details subsystems architecture and fundamental planning concepts to ensure proper deployment aligning with system requirements and regulatory frameworks.

• Operation Management: Includes terminology related to operating states, signals, procedures, and modes to support safe and efficient EES system utilization.

• Environmental and Safety Issues: Establishes definitions pertaining to environmental impact and safety measures, promoting compliance with international safety standards and sustainable energy storage solutions.

• Standardization and Harmonization: The vocabulary harmonizes with established resources such as the International Electrotechnical Vocabulary (IEV), IEC Glossary, and ISO Online Browsing Platform (OBP), ensuring global consistency.

Applications

IEC 62933-1:2024 is essential for:

• Manufacturers and Designers: Facilitating a common language for system components, design specifications, and performance criteria to enhance product development and interoperability.

• Grid Operators and Utilities: Enabling clear communication about system capabilities, operational parameters, and energy management strategies essential for grid stability and integration of renewable resources.

• Regulatory and Standards Bodies: Providing a foundational reference to support regulations, safety guidelines, and certification processes related to electrical energy storage technologies.

• Testing and Certification Laboratories: Offering standardized terminology for test methods, efficiency assessments, and safety evaluations to ensure reliable performance validation and compliance.

• Project Planners and Installers: Assisting in precise planning, installation, and commissioning through well-defined system architecture and connection points.

Related Standards

The vocabulary defined in IEC 62933-1:2024 complements other parts of the IEC 62933 series, which address specific aspects of electrical energy storage systems including:

• Test methods and procedures for system and component performance.
• Safety requirements and environmental considerations.
• Specific classifications addressing technology types and operational modes.
• Integration frameworks for grid-connected applications.

Users are encouraged to consult these related documents alongside IEC 62933-1:2024 to ensure comprehensive understanding and application of electrical energy storage system standards. Access to the latest editions and supporting materials can be found via the IEC Webstore and Electropedia online resources.

Keywords: IEC 62933-1:2024, Electrical Energy Storage (EES) systems, EES vocabulary, energy storage terminology, grid-connected storage, EES system classification, energy storage standards, EES planning and installation, EES operation, energy storage safety, IEC standards for energy storage.