Solar panel efficiency can vary based on various factors, including the type of solar panels used, their orientation, tilt angle, shading, and local weather patterns. On average, modern solar panels typically have an efficiency range of 15% to 25%, meaning they can convert 15% to 25% of the sunlight they receive into electricity. However, it’s essential to note that the actual efficiency of solar panels in the Idaho Treasure Valley or any other location may be impacted by factors such as temperature, cloud cover, and other environmental conditions.