Rack-mounted energy storage (U-shaped) Stackable type is a specially designed energy storage device with a U-shaped shape and a stackable structure. This kind of energy storage equipment usually consists of multiple energy storage units, which are stacked on a rack to save space and improve overall efficiency. 

 Rack-mounted energy storage (U-shaped) stacking is widely used in energy storage systems, such as wind power generation and solar energy systems. This design can achieve large-capacity energy storage, and it is easy to install and maintain. At the same time, the stacked structure can realize a modular design, making it easier to expand and upgrade the system. 

 In general, rack-mounted energy storage (U-shaped) stacking has the advantages of high efficiency, reliability, space saving and flexibility, making it an ideal energy storage solution.