Photovoltaic Array Sizing
Solar Panel Size Calculator
Determine how many solar panels and what total wattage rating you need to offset your electricity usage completely.
Energy & Sun Exposure
Enter your daily energy usage in kWh and local peak sun hours.
Total Solar Array Size
6.9 kW
Nominal DC Rating Needed
Number of Panels Required:
18 Panels (400W each)
Est. Daily Solar Production:
25.0 kWh / day
Est. Roof Surface Area:
~360 sq. ft.