As solar technology advances to become more efficient and cost-effective, sustainable energy is becoming increasingly prominent in the U.S. Large solar farms that do more than just generate electricity are being built, and even homeowners are taking advantage of solar by installing their own panels. This allows them to save money on their utility bills, use power even when off the grid, or both. Foldable solar panels make things even easier, as they don't need to be permanently mounted to rooftops or other harder-to-reach areas. Often, these foldable panels don't provide as much wattage as permanent installations, but on the flip side, they're typically cheaper. Based on portability, efficiency, and other factors, along with Amazon customer ratings from people who've purchased and used them, here are five top-rated foldable solar panels you can buy on Amazon.