Shading Impact Calculator

See how much power you lose from partial shading — and how much wiring config matters.

Your Array

Total Array Wattage (W)

% of Array Shaded (15%)

0%50%100%

Shade Type

String Configuration

Configure your array to see shading impact

Solar cells are wired in series. When one cell is shaded, it becomes a resistor in the current path. In the worst case:

10%

Physical shade coverage

30-50%

Actual output loss in series strings

Up to 70%

Recovery with DC optimizers