In a recent move to support energy security and the transition to green, low-carbon development, the National Energy Administration (NEA) has released a batch of major industry standards. These standards aim to promote emerging technologies, new industries, and innovative business models within the energy sector. Among the newly released documents are several that directly concern energy storage technologies, particularly electrochemical energy storage and compressed air energy storage (CAES) stations.

The following energy storage standards are included:

Technical Specification for Grid-Connection Acceptance of Electrochemical Energy Storage Stations

This standard applies to the grid-connection acceptance of newly built, reconstructed, and expanded electrochemical energy storage stations connected at 10kV (or 6kV) voltage level or above. It specifies the grid-connection acceptance conditions, acceptance procedures, scope of acceptance responsibilities, acceptance content, and technical requirements. The implementation of this standard can regulate the grid-connection acceptance procedures during the production preparation phase of electrochemical energy storage stations and help enhance the level of safe and stable operation.

Design Code for Underground Gas Storage Facilities in Compressed Air Energy Storage Stations

This standard is applicable to the design of underground gas storage facilities in newly built, expanded, or reconstructed compressed air energy storage stations. It stipulates site selection and layout, stability analysis, support design, structural design, and main equipment for underground gas storage. The implementation of this standard fills the gap in domestic technical standards for underground gas storage facilities in CAES stations and holds significant importance for standardizing their design and construction.

Design Code for Compressed Air Energy Storage Stations

This standard applies to non-combustion compressed air energy storage stations with a single generator unit capacity of 10MW or above. It outlines requirements for power systems, site selection, overall planning and layout, main equipment and systems, thermal storage and exchange systems, main plant area layout, gas storage systems, auxiliary process systems and equipment, and electrical equipment. The release and implementation of this standard is expected to improve the standardization of CAES station designs, enhance equipment compatibility, and reduce investment risks.

With the publication of these standards, the National Energy Administration continues to set a clear regulatory framework for advancing critical energy technologies. The inclusion of detailed specifications for both electrochemical and compressed air energy storage facilities marks a significant step in aligning technical standards with the evolving demands of China’s modern energy infrastructure.