Systems, apparatuses and methods are provided herein for generating energy with a shopping cart. A shopping cart apparatus comprises: a front wheel, a back wheel, a bottom frame, and a power generator assembly. The power generator assembly comprises: a generator coupled to the back wheel, the generator being configured to convert kinetic energy from a rotation of the back wheel to electrical energy, a capacitor element coupled to the generator and configured to store the electrical energy generated by the generator, the capacitor element comprising a first electrode and a second electrode separated by a dielectric material, wherein the first electrode comprises an elongated member of the bottom frame extending from the back wheel toward the front wheel, and a first contact member and a second contact member coupled to the capacitor element and configured to discharge the electrical energy stored in the capacitor element.