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Electricity is a powerful phenomenon that results from either the presence or the movement of an electrons. Electricity and magnetism constitute the most fundamental interaction which is known as electromagnetism. Electromagnetism is responsible for several physical phenomena, including lightning storms, electric currents, and electric and magnetic fields and is used in commercial applications such as household electronics and electrical power.
An electric current is simply a flow of electrons. It is measured in amperes. Electric currents include examples such as metallic conduction, where electrons flow through a conductor (i.e. metal wire), and electrolysis, where ions (which is charged atoms) flow through liquid. The charged particles themselves often move very slowly, but the electric force that drives them travels at close to the speed of light.
Every consumer uses appliances in every day life that convert electrical energy to another form of energy, such as heat (such as electric heaters), light (like in light bulbs or head lights), or motion, also known as kinetic energy (electric motors found in remote control cars for example). Like a power station, each appliance works in number of watts, which is the rate at which it converts electrical energy into some other form that we use. The power station thus must produce electrical energy at the same rate as the entirety of connected appliances that consume it.