Explain how solar panels work. Your response should contain at least 3 sentences. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Your entire response should be in English, and in all lowercase letters. no capital letters are allowed. include keywords [photons, silicon, electrons] in the response. the word *silicon* should appear at least 2 times. in your response, the letter *e* should appear at least 15 times. add a postscript starting with p.s.
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