BATTERY RACK, POWER STORAGE DEVICE, AND POWER GENERATION SYSTEM

The present disclosure discloses a battery rack, a power storage device, and a power generation system that reduce manufacturing costs and are easy to install. A battery rack according to the present disclosure for achieving the above object includes a plurality of battery modules, at least one rack case to accommodate the plurality of battery modules, an injection pipe including a main body portion including an inlet through which an extinguishing agent is injected and extending along an arrangement of the plurality of battery modules, and a distribution unit extending toward each of the plurality of battery modules from the main body portion and including an outlet inserted into each of the plurality of battery modules, and a flexible pipe to be bendable and including a first coupler located at one end of the flexible pipe to be connectable to a supply pipe for supplying the extinguishing agent, and a second coupler located at the other end of the flexible pipe to be connectable to the inlet of the injection pipe.