very small PV system with parallel modules and microinverter

Hm.. The reason why I was planning to have different orientations in parallel instead of equal orientations in parallel is the fact that there is a lot of vegetation and neighbour houses around. Theres always a high chance that one of the modules is partially shaded. https://lh3.googleusercontent.com/drive-viewer/AFGJ81oXWG-T_teJULXYBzwmHPqqbvxaiwiTMceNz-wTFy8IklCkVAoZnEVBKoqn4s5TrCqtb6UEmPM-8D2-B2Kjoa5WPexLtQ=s2560

Hi Ulrich,

SAM assumes that all strings in a given subarray operate at the same voltage, so the modules in the subarray must have the same orientation, and the strings in the subarray must have the same number of modules.

Best regards,
Paul.