Partition in 3D sense

[Aboeyad]

Hi PVsyst team,

Please don't ignore my question and I would appreciate any feedback that you could give for this question.

I have one project that include racks with 3 rows and each row has 16 Modules. In total I have 48 modules within the rack these 48 modules will create two strings, each string is 24 modules as shown in the picture. Now Let's assume that I have half cut cell modules. How the partition should be done in this case?  Should I consider "Nb. rectangles in height (Y) to be 2 and  "Nb. rectangles in width(X) to be 1 or I should consider "Nb. rectangles in height (Y) to be 1 and  "Nb. rectangles in width(X) to be 1?

Thank you in advance 

 

[Michele Oliosi]

Hi, this is a complicated question. The partition model is really ill-fitted to this kind of arrangement.

The best is to model this first with the module layout:

In this situation (GCR, tilt, climate, inverter layout, type of modules) this gives me about 0.9% electrical shading losses. If I then wanted to replicate this in the partition model, it is best to proceed by trial and error.

Here defining 3 partitions in Y and 1 partition in X seems to work best to replicate the same amount of electrical shading losses. I tried first Y = 6, but the electrical shading losses were too small.

In summary, it is hard to define how to partition in this kind of situation, and it will depend a lot on many factors. It is best to check with a simplified layout in the module layout to make sure that the partitioning gives a good amount of losses.

[Michele Oliosi]