BATTERY RACK, ENERGY STORAGE APPARATUS, AND POWER GENERATION SYSTEM

A battery rack according to the present invention comprises: a plurality of battery modules arranged in layers; a rack case configured to accommodate the plurality of battery modules; and a fire extinguishing agent supply member provided with a supply pipe which is configured to transport a fire extinguishing agent and is extended along the plurality of battery modules, and a plurality of valves each having one end portion connected to the supply pipe and the other end portion configured to be connected to each of the plurality of battery modules from the supply pipe.