Why does the PV*SOL Expert software show a yield reduction of 1 to 2% due to shading even if no shading objects have been defined

A horizon with an elevation angle of 2° all-round is entered as a shading object as a default in the program version up to PV*SOL Expert 5.5. This setting leads to a small yield reduction due to horizon shading. If you wish to delete the horizon object, please select the "Horizon" menu item in the terrain view and delete it by changing the elevation angle from 2.00° to 0°.

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