Where does energy in an electrical outlet come from?

Answer 1

It ultimately comes from a power generating station operated by the electric utility co. There, a generator is turned by water from a dam (hydroelectric) or by steam from coal or oil, or sometimes a nuclear reactor. The generating station might be many miles away. A very tiny bit of electricity is produced from the sun (photovoltaic), and by wind generators too. Have you seen the huge metal towers with cables up on top? These transmission lines are how the electricity gets from the generating station into the city. The transmission lines go to substations, where the voltage is transformed down to a lower value, then distributed by wires on smaller poles into neighborhoods. There, it is transformed once more into a lower voltage, the proper value for your outlets. This is done by Transformers. Sometimes they are round metal cans up on poles, sometimes they are square metal boxes in a front yard or alley. Finally, the electricity comes from the transformer to your house. There may be a cable overhead from a pole to the house, or sometimes the cable is buried underground. Once the electricity is at the house, wires in the attic and walls carry it to the outlet itself. Whew! What a journey!

Answer 2

It comes from the electric distribution system that gets its electricity from power plants that could be conventional power plants (oil, gas, and or coal) or nuclear power plants or renewable power plants (solar, wind, hydraulic, biomass, ... etc.).

Answer 3

C