How to choose the appropriate output power and electricity for the energy storage system?
When selecting the power and capacity of a lithium-ion battery energy storage system, multiple factors need to be considered comprehensively. Generally speaking, it needs to be determined according to actual needs and application scenarios. It is necessary to ensure that the maximum continuous output power that the energy storage system can provide is greater than the maximum power when the load is working, and it is necessary to consider whether there is a possibility of increasing the load power in the middle and late stages of actual use. In the selection of power, it is necessary to fully consider the maximum working time of the load and leave a certain margin. At the same time, it is also necessary to consider the low temperature situation and the fact that the battery power of the energy storage system will decay to a certain extent after long-term use. Due to the electrochemical characteristics of lithium-ion batteries, the actual available power of the battery will shrink in a low-temperature environment, and the battery capacity will undergo normal capacity fading after long-term use.