- Nuclear energy is stored energy within the nucleus of an atom. - Potential energy is stored energy due to position, condition, or state (e.g., gravitational potential energy, elastic potential energy). - Chemical energy is stored energy in the bonds of chemical compounds. - Electrical energy, as typically referred to (e.g., in a circuit), is energy associated with the movement of electric charges (current) or stored in electric fields (e.g., in a capacitor, which is a form of potential energy). While energy can be stored in electric fields or converted from/to electrical forms (like in batteries which store chemical energy), 'electrical energy' itself is often considered energy in transit or being used to do work, rather than a fundamental form of stored energy in the same way as potential, chemical, or nuclear energy.