Machine initialization_Diesel generator

Hi,

I want to model an islanded microgrid concept with diesel generator with loads, so after doing load flow/machine initialization in with diesel generator and saving the steady-state values, can I model the rest of the system with these saved values ? In that case, how do I calculate the power output of diesel, and asynchronous motor (as in the example). Is it the same as the rated power given in the blocks?Or will it change asper the load applied.?

Kindly advcie