An electric storage apparatus has a plurality of electric storage units placed in line in a first direction, and a spacer forming space between two adjacent ones of the electric storage units, a heat exchange medium for use in temperature adjustment of the electric storage unit being moved in the space in a second direction orthogonal to the first direction. The spacer has a protruding portion on each of two faces forming the space and opposite to each other, the protruding portion protruding toward the inside of the space. The protruding portions provided on the two respective faces are shifted in the second direction from positions where the protruding portions are opposite to each other in the first direction.