Solar panels themselves are completely silent. Certain pieces of equipment on a solar farm do emit sound. Transportation and maintenance equipment—including cars, trucks, lawnmowers, and string trimmers—is a common source of noise on solar farms that most people are used to hearing elsewhere. In addition to these sources, inverters and transformers on a solar farm will generate low levels of sound during the day when the sun is shining. The impact of this sound is negligible because the equipment is strategically placed between 200 and 300 feet away from residences to allow the sound to naturally dissipate.
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