Introduction  From the perspective of energy, the essence of developing new quality production forces is to support a new energy system that is clean and low-carbon, safe and abundant, economical and efficient, supply-demand coordinated, flexible, and intelligent. New energy storage is one of the indispensable parts of the new energy system, and electrochemical energy storage is the most widely used. Considering frequent electrochemical energy storage safety accidents at home and abroad in the rapid development of the electrochemical energy storage industry and the continuous growth of installed capacity of energy storage power stations, electrochemical energy storage safety has become a key factor restricting the large-scale development and application of energy storage.

  Method  The grid connection of an energy storage power station is a major node of electrochemical energy storage, so, before grid connection, it is important to verify whether the energy storage power station meets the safety requirements for grid connection and identify the potential safety risks of the energy storage power station through the verification of design data, product inspection reports and other data, on-site inspection of the energy storage power station, and systematic safety evaluation of the energy storage system, the energy storage power station area and the to-be-connected power grid by the energy storage system.

  Result  On this basis, a set of methods or standards for assessing grid connection safety risks of electrochemical energy storage stations is summarized. It enriches the safety and environmental protection modules in the standard system for power energy storage and fills China's gap in requirements for safety assessment before the grid connection of electrochemical energy storage stations. It standardizes the scope and content depth of safety risk assessment before grid connection of electrochemical energy storage power stations and can be used as a guide for employers, third parties, and other interested parties to conduct assessments prior grid connection in a more standardized manner and improve the overall safety of grid connection of electrochemical energy storage power stations.

  Conclusion  The research result provides a valuable reference for building a safety standard system for electrochemical energy storage and applying energy storage in new scenarios.