As the core part of the energy storage system, the battery cell accounts for about 60% of the cost, but in the entire energy storage system, the weak link of safety lies more at the system level than the battery cell. This was confirmed in a survey report released by the Overseas Clean Energy Association in February 2024. The report notes that about 26 percent of the energy storage systems inspected had fire detection and extinguishing system quality issues, and 18 percent had thermal management system deficiencies. These problems are mainly manifested in the fire extinguishing agent is not released in response, the fire alarm stop button is not responding, and the smoke and temperature sensors are malfunctioning, while the defects of the thermal management system are mainly concentrated in the failure of circulating system components and short circuits in the compressor motherboard. 
February** Dynamic Incentive Program
It is reported that the Clean Energy Association has conducted more than 320 inspections on more than 52 battery energy storage system products, involving lithium-ion battery energy storage projects with a total capacity of more than 30GWh, and a total of more than 1,300 problems have been identified. From the three levels of system, module and cell, the survey results show that nearly half of the problems are at the system level. These problems are mainly due to the fact that energy storage system integration is a labor-intensive link that is highly dependent on manual operation, and the quality control procedures may not be strictly controlled; In addition, the complexity of the energy storage system also makes it easy to find defects in upstream components during the early quality inspection. George Toulupas, senior director of technology and quality at the Clean Energy Association, points out that no manufacturer is perfect, so buyers must conduct in-depth due diligence on manufacturers before sourcing. He stressed that although the energy storage industry has achieved some growth, it has not yet reached a truly mature stage. In recent years, with the rapid growth of global energy storage capacity, the safety risks of lithium battery energy storage have also attracted increasing attention. Data shows that since 2021, there have been more than 100 energy storage accidents worldwide, especially in the past two years. Since 2023, the field of energy storage system integration has become the most competitive link in the industrial chain. Despite this, a number of senior experts in the industry remind everyone that some people have misunderstandings about the integration of energy storage systems, and in fact, to meet the requirements of quality and safety standards, the threshold for energy storage system integration is far higher than imagined. It is important to note that this survey by the Clean Energy Association is for energy storage system products rather than actual energy storage system projects in operation. During the installation and commissioning of the project, there is still an opportunity to correct the quality problems existing in the energy storage system. Therefore, for the safety of energy storage systems, it is necessary not only to pay attention to the quality of components such as battery cells, but also to conduct a comprehensive and in-depth review and evaluation at the entire system level.