Solar Power Roof Area Calculator | Roof Space Needed for a Solar
Solar Panel Wattage (W) Most residential panels are 350–450W. Check your panel specs or use an average value. Solar Panel Area (m² per panel) Standard panels are about
You want to put solar panels on (due to 75% available area, the viable roof area is 450 sq ft, the calculator accounts for that). Just slider the slider to '600' and you get the results: You can put a 7.763 kW solar system on a 600 sq ft room. If you use only 100-watt panels, you will be able to fit 77 of them on the roof.
850 square feet of usable roof space for solar: The average U.S. roof is about 1,700 square feet. You should never put panels on northern roof planes. So with a north/south roof, that gives you 850 square feet. 400-watt solar panels that are 20 square feet in size: This is the most frequently quoted panel power output on EnergySage.
Our solar panel calculator helps you determine how many solar panels can be installed on your roof and how much electricity they can generate. It calculates the maximum number of panels that fit on the available roof surface, taking into account important factors such as orientation, inclination, and panel type.
Let's use the above equation to calculate this: Max. Solar System Size (800 Sq Ft) = 800 Sq Ft × 0.75 × 17.25 Watts / Sq Ft = 10,350 Watt = 10.35kW Solar System Now, by average solar panel wattage per square foot, we can put a 10.35kW solar system on an 800 sq ft roof.
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