This paper continues with the development of the author's aether Simple Unified Theory (SUT) and the wave-pulse theory of light. The theory may be called photoelectricity, a replacement for electromagnetism based on Maxwell's equations. In contemporary electromagnetism, energy transmission in current carrying conductors is explained based on the Poynting theory; that it is the surrounding magnetic fields of the conductor which is responsible for energy transmission. This paper argues that such an explanation is not convincing. It is hypothesized that the actual mechanism of energy transmission is through apulses(aether wave pulses, almost photon-like), being absorbed and remitted within the conductors. This is the basis of the novel concept of the energy current in electrical circuit. This paper also touches on various related aspects of physics including the Ampere's force law. An integration method for Ampere's forces is explained. Various experiments involving the Ampere's longitudinal forces have been re-examined. Faraday's law of electromagnetic induction for the AC alternators is explained as aether apulses being emitted within the magnets that jump the air gap entering into the armature winding of the alternator; this is the energy current source for the conversion from mechanical to electrical energy in AC alternators.