According to the laws of physics as we understand them, a perfect vacuum at absolute zero temperature would not possess any stored energy. Absolute zero temperature is defined as the lowest theoretically attainable temperature, at which the kinetic energy of all particles in a substance would be minimized. In a perfect vacuum, there are no particles or matter present, and therefore, there is no kinetic energy or energy stored in any form.
Energy typically arises from the motion, arrangement, or interaction of particles or fields. In a perfect vacuum, there are no particles or fields to possess such energy. Therefore, a perfect vacuum at absolute zero temperature would be devoid of any stored energy.