I was wondering what would be the best tool for simulating Smart Grid interactions between the subdomains, I have only Matlab in mind, but for those who are advanced in this domain, do you have any interesting suggestions?
Matlab is at this time the best option (the attached papers describe works using Matlab). You also implement you own simulation environment using Scilab or programming using Python.
From my own research, I found out that the physical part of the grid can be implemented in Matlabn while agents can be implemented in OO based language.