How the losses values are calculated?

Good night.

I'm trying to validate the loss diagram values, but I'm no luck. I'm using this formula, for example:

shading loss percent = 1 - sum(values without shading column)/sum(values after shading column)

And I'm getting very close results: -2.95% on loss diagram and -3.05% on my calculations.

I wonder what am I doing wrong?

Thks in advance.

Hi Gabriel,

The source code for the loss calculations are around this line of code:

github.com/NREL/ssc/blob/05ed7c13afef9fd3529abd51e8d06bbfed841aef/ssc/cmod_pvsamv1.cpp#L2754

The shading loss calculations depend on the various options on the System Design and Shading and Layout input pages. The descriptions in Help should help you identify which outputs apply for the different options.

Best regards,
Paul.