Energy storage apparatus

An energy storage apparatus (1) including: a module unit (11) including one or more energy storage devices (200) and a module case (14) that is a container that holds the one or more energy storage devices (200); and a first protrusion (100a) that protrudes from at least one of an energy storage device bottom surface (210c) and a first case surface (110a) of the module case (14) so as to form a first space (110b) defined by the energy storage device bottom surface (210c) and the first case surface (110a), the energy storage device bottom surface (210c) being a bottom surface of at least one of the one or more energy storage devices (200), the first case surface (110a) being opposed to the energy storage device bottom surface (210c).