POWER STORAGE DEVICE

A power storage device includes: a first power storage stack including a first power storage cell; a second power storage stack including a second power storage cell; a third power storage stack including a third power storage cell; and a wiring panel disposed below the first power storage stack, the second power storage stack, and the third power storage stack. The wiring panel includes an insulator plate, and a first busbar module, a second busbar module, and a third busbar module, which are disposed on the insulator plate. The insulator plate has a first bending starting point located between the first busbar module and the second busbar module, and a second bending starting point located between the second busbar module and the third busbar module.