Highjoule (HJ Group) Participates in the Compilation of the Technical Standard for Smart Building Microgrids, Officially Released

Recently, the China Association of Building Energy Efficiency (CABEE) officially released the group standard Technical Standard for Smart Building Microgrids (Standard No.: T/CABEE 106—2025). The standard was issued on May 19, 2025, and will come into effect on July 1, 2025.Highjoule(HJ Group), as one of the participating compilation units, was deeply involved in the development of this standard, contributing professional expertise to the standardized and intelligent development of the building microgrid industry.

An Important Addition to the Standard System for Smart Building Microgrids

Under the background of China’s “dual-carbon” goals and the construction of a new-type power system, building-side energy systems are accelerating toward integrated development featuring multi-energy complementarity, coordinated source–grid–load–storage operation, and digital intelligence. As a key carrier connecting distributed energy resources, energy storage systems, and building energy consumption, building microgrids urgently require unified and systematic technical standards.

The Technical Standard for Smart Building Microgrids is formulated to promote intelligent, flexible, and digital operation of building microgrids, maximize the utilization of renewable energy, improve energy efficiency, and ensure the safety and reliability of power supply. It provides the industry with systematic and practical technical guidance.

Scope of Application and Main Technical Content

This standard applies to the construction of smart building microgrid projects in newly built, renovated, and expanded civil buildings and industrial or commercial parks. It covers systems with an AC voltage level of 1 kV and below, or a DC voltage level of 1,500 V and below. In addition to complying with this standard, smart building microgrid projects shall also conform to relevant national standards currently in force and applicable standards issued by the China Association of Building Energy Efficiency.

The standard features a comprehensive and well-structured technical framework, mainly including:

• General principles
• Terms and definitions
• Basic requirements
• Topological architecture
• Distributed energy resources
• Building-side load and energy storage
• Microgrid protection devices
• Microgrid monitoring and control devices
• Intelligent microgrid control platform

By systematically regulating system architecture, key equipment, protection and control strategies, and platform construction, the standard provides clear guidance for the planning, design, construction, operation, and management of smart building microgrids.

Highjoule(HJ Group) Contributes Practical Experience to Standard Development

As a technology enterprise with long-term focus on energy storage systems, microgrids, and integrated energy solutions, Highjoule(HJ Group) has accumulated extensive practical experience through multiple building- and park-level energy projects. During the compilation of this standard, Highjoule(HJ Group) contributed valuable insights based on real-world applications, particularly in building-side energy storage configuration, system integration, operational control, and safety and reliability, providing strong support for the scientific rigor and practical applicability of the standard.

Guided by Standards, Advancing High-Quality Industry Development

The official release and implementation of the Technical Standard for Smart Building Microgrids will further promote the transformation of building energy systems from single-source power supply to intelligent and coordinated energy utilization. It will play an important role in improving building energy efficiency, promoting renewable energy integration, and enhancing power supply security.

Looking ahead, Highjoule(HJ Group) will continue to be guided by national and industry standards, deepen technological innovation and application practices in the fields of smart building microgrids and energy storage, actively participate in further standard development initiatives, and work together with industry partners to promote the high-quality development of building energy systems and the new-type power system.