The first recorded photovoltaic solar panel was installed in New York City in 1884 by Charles Fritts. It was built upon the work of French physicist Edmond Becquerel, who had made the first individual solar cell just a few years prior. . Long before the first Earth Day was celebrated on April 22, 1970, generating awareness about the environment and support for environmental protection, scientists were making the first discoveries in solar energy. " Chinese civilization documented the use of mirrors for the same purpose later in. . A solar panel is a device that converts sunlight into electricity by using multiple solar modules that consist of photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light. With enough energy, electrons can hop off a molecule with too many and onto another with too few. The two dissimilar semiconductors possess a natural. .
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