Vertical Bifacial Problem Higher Pitch

[Andres Yemail]

I am performing a simulation of a vertical bifacial system. The client asked me to do the simulation with two rows separated by 200 mts of distance. But I was checking, and in the simulation at 100 meters distance the energy produced is higher than at 200 meters. In the following graph it can be seen the E_Grid vs Pitch. In my opinion, taking into account that the losses are the same in both models, it is not clear to me why the power production is reduced as the pitch increases.