The price of a 20 watt solar panel can vary significantly based on several factors, including brand, quality, and technological advancements. On average, you can expect to pay anywhere from $30 to $60 for a quality 20 watt solar panel. Prices can fluctuate depending on the manufacturer, the materials used in the panel construction, and market demand. Notably, premium brands may offer panels at a higher price point, often incorporating advanced features such as enhanced efficiency and durability.
Of course, you can also purchase a solar street light for your own driveway or street.