Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I assume, that you refer to the ElectricLoadCenter:Generators object.
As it says in the Input Output Reference:
"This value [Generator Rated Electric Power Output] is used only for supervisory control and generator dispatch; the actual power output for each time step is determined by the generator models."
So the power output comes from the PV models. I think, this value is only needed for something like: how much generated electric power should the Electric Load Center "expect" from the PV models, to manage storage and other things. If your setup is relatively simple, e.g. you have only one generator object, no storage, the value of Rated Electric Power Output may have no effect on your results. Just set it to the sum rated power of your PV system.
