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SOLAR POWER PUMPS
How does the sun power a pump?
The photovoltaic effect produces a flow of electrons. Electrons
are excited by particles of light and find the attached electrical
circuit the easiest path to travel from one side of the solar cell
to the other. Envision a piece of metal such as the side panel of
a car. As it sits in the sun, the metal warms. This warming is caused
by the exciting of electrons, bouncing back and forth, creating
friction, and therefore, heat. The solar cell merely takes a percentage
of these electrons and directs them to flow in a path. This flow
of electrons is, by definition, electricity.
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