fatah

Hello i have a question about the simulation "near shading" in pv syst with thin film module array composed of many strings is there a differnces when using the modules in portrait or landscape ? also the modules don'have bypasse diodes , is it considered in the simulation a last question , did the the linear shading , the best option to use with thin film module , to estimate the shading losses on energy production or should i use according to strings?