1. Electric power
plants make electrons flow by
spinning copper wire near a magnet in a machine called a generator.
The magnet makes the electrons in the wire move from atom to atom,
2. Electricity has to travel a long
way from the power plant to where it is used, and it can get weaker
as it travels. So big transformers
at power plants are used to increase electricity's strength for
its long journey.
3. Electricity travels long distances
over transmission lines on tall towers.
4. When electricity gets closer
to where it will be used, its strength must be decreased. Transformers
at utility substations do this job,
"stepping down" electricity's power.
5. Electricity then travels to neighborhood
streets and rural areas on overhead or underground power lines called
6. When the distribution wires reach
a home or business, another transformer
reduces the electricity down to just the right voltage to be used
in homes, schools, or businesses.
drop wires carries the electricity from the transformer to
buildings through a meter box. The meter measures how much electricity
is used in the building.
8. From the meter box, wires
run inside the walls of buildings to lights and outlets, where electricity
waits for you to use it.