A 500 watt single solar panel covers an area of approximately 27. 5 square feet, with dimensions around 7. This might sound efficient at first glance, especially when you factor in the power it generates. . A 500W panel is one of the larger options available on the market today, capable of producing half a kilowatt of power under ideal sunlight. That's enough to run several small appliances or contribute meaningfully to a larger solar system, but the exact output depends on your setup and usage. You can find typical dimensions of 100W, 150W, 170W, 200W, 200W, 220W, 300W. . A 500-watt solar panel typically consists of high-efficiency photovoltaic cells, usually made from monocrystalline or polycrystalline silicon. Typically made up of 144 half-cut monocrystalline cells, their large size makes 500-watt solar panels more commonly seen in commercial, ground-mounted, and utility solar projects.