23-04-2014, 07:21 AM
Indeed, it should. No new grid needs to be specified for using the power flow equations, if your model already includes a grid, comprised of interconnected trade links between regions.
Are you saying that the equations are not generated at all, or that they just "do not seem to work"?
Maybe you could give some more information? Perhaps you could post a picture of your trade matrix definition? And maybe you could also upload the listing file (ZIP/RAR compressed) from the model run where you have included the PRC_REACT parameters for the electricity exchange links?