Hello, thank you for your attention.
First of all I refer to the collectors as the solar energy collection panels.
On the other hand, my question arises from the results obtained in different variables, done: keeping a number of systems (2), I am adding, in different variables, more collectors (panels) (20, 40, 80 and 162). For variable 1 (20 collectors) the energy given to the hot water system is 19443,44 kWh/year, for variable 2 (40 collectors) the energy given is 25675,71 kWh/year, then the energy starts to be lower! in variable 3 (80 collectors) 22579,54 kWh/year are given an