Abstract: A storage battery rack includes bottom frame portion, ceiling frame portion, long support posts, and side panels installed facing the support posts. Each support post has a plurality of attachment holes with a predetermined pitch along the longitudinal direction. Side panel has a plurality of female screw holes with a pitch corresponding to the predetermined pitch. Each side panel is attached to a pair of the support posts with screws fastened to attachment holes and the female screw holes. Side panel has a plurality of parallel support portions. A distance between support portions is set substantially equal to a total value of a predetermined height dimension of a refrigerant passage formed between a plurality of storage batteries and a predetermined height dimension of each storage battery.