Most electricity is made by turbine blades rotating at speeds high enough to produce electricity in a generator. The blades can be turned by water, steam or wind.
The electricity flows through metal conduction to a switchyard, where a transformer steps up voltage for transmission.
Transmission lines can efficiently carry high-voltage electricity over long distance to substations.
At substations, electricity is stepped down so it can travel over smaller distribution lines to homes and businesses.
Distribution lines carry electricity to neighborhoods.
An electric-pole transformer reduces the voltage to a level that can be used in homes.