A power capacitor including: a casing, a first bushing, a second bushing or an earthing stud having the same electric potential as the casing, wherein the first and second bushing extend through the casing, a dielectric liquid, and a plurality of wound capacitor elements, each wound capacitor element including: a first electrode having two first layers of electrically conducting material connected to the first bushing, the two first layers being arranged movable towards and from each other, a second electrode having two second layers of electrically conducting material connected to the second bushing or to the earthing stud, the two second layers being arranged movable towards and from each other, and a dielectric layer arranged between the first electrode and the second electrode, wherein the two first layers, the two second layers and the dielectric layer are together wound in a plurality of turns to obtain a plurality of layers of the first electrode, of the second electrode and of the dielectric layer, wherein the wound capacitor elements are arranged in a stacked manner in the casing, adjacent wound capacitor elements being in direct contact with each other, and wherein the capacitor elements are submerged in the dielectric liquid.