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Solar energy is electrical or thermal energy harvested from sunlight. Solar panels contain photovoltaic (PV) cells made up of semiconductor materials (such as silicon) to absorb elemental particles from the sun called photons. When absorbed by the panel, the photons release electrons from the atoms of the semiconductor material and the flow of these electrons within the cell creates an electric current we can direct to our circuits.
2. Panel Efficiency The efficiency of the solar panels plays a crucial role in determining their cost. More efficient panels convert a larger percentage of sunlight into usable electricity, which can justify a higher price tag. Buyers should evaluate the efficiency ratings to discern whether the initial investment is worthwhile.
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