On the latest episode of the Merseyside Skeptics podcast Skeptics with a K, they discuss an energy saving device called z-energeia. This device claims to align the elections flowing thru the wires in your house to decrease the resistance in the wires, resulting in less electricity used and a lower electrical bill by rubbing the outside of panel with a wipe.
All atoms are made from three subatomic particles, electrons, protons and neutrons. The protons and neutrons make the nucleus in the center and the elections orbit the nucleus. Electrons can orbit only in certain orbits. This leaves one electron in the last level in a copper atom, these electrons are easily passed between atoms. To move the electrons thru the wire, power companies use turbines to spin giant magnets in the center of a large coil of wire to push the electron all in one direction. That is the classical view. The other view is that the electron is a wave but even in this view the magnet field aligns the electrons in one direction. Resistance happens when atoms absorb an electron and gives off a little heat. So basically wiping down the outside of the panel will do nothing.