Several of your roof's factors will have an impact on how much solar you can produce.
No two roofs are the same. And similarly, no two roof panels are the same when it comes to how well they access the sun. The key to designing an efficient solar system is maximizing the areas of your roof that receive the most sunlight throughout the day. Your roof's efficiency for solar is determined by many factors including the roof panels' size, direction, pitch, and azimuth. The most ideal roof plane for solar faces South, meaning it absorbs constant sunlight throughout the day, from sun-up to sun-down. An ideal roof angle is between 30-45 degrees. Your solar expert will be able to analyze these factors and design for the strengths of your specific roof.