According to industry experts, most of the 5MWh+ battery cabins adopt centralized topology and liquid cooling and heat management. There are 12 battery clusters in the whole cabin. The DC sides of the battery clusters are connected in parallel and then connected to the DC side of the PCS. The energy of a single cabin can reach more than 5MWh.
A 20-foot liquid-cooled battery cabin using 280Ah battery cells is installed. Each battery cabin is equipped with 8 to 10 battery clusters. The energy of a single cabin is about 3MWh-3.7MWh. You can click our liquid cooling vs air cooling to get more information about cooling.
The energy of a single cabin can reach more than 5MWh. Compared with the mainstream 20-foot 3.72MWh energy storage system, the 20-foot 5MWh energy storage system has a 35% increase in system energy.
Zenergy energy storage container is equipped with self-produced 314Ah batteries, and the 5MWh energy storage container is equipped with self-produced 314Ah batteries. Through modular design, it can be flexibly arranged and expanded, and the system is more standardized.
According to calculations, a 20-foot 5MWh liquid-cooled energy storage container using 314Ah batteries requires more than 5,000 batteries, which is 1,200 fewer batteries than a 20-foot 3.44MWh liquid-cooled energy storage container using 280Ah energy storage batteries.
In fact, with the release of 300Ah+ large-capacity battery cells, members of China top 10 energy storage system integrator have deployed 5MWh+ energy storage battery compartments, such as CATL, Sungrow, CRRC Zhuzhou Institute, TrinaStorage, etc.