Due to planning restrictions and to maximise the array, is there any benefit of having 5 panels laid flat on the higher part of a flat roof where there is no shading?

I assume the only benefit would be in summer but would like other peoples views please.

I know it’s not ideal but I’m trying to get as many panels fitted as part of a permitted development instead of having to go through the planning permission route.

Currently it’s 7kw and looking to increase the size with the 5 extra panels.
Luke Sills
3rd November 2023