ISPEN software is able to merge network models and flow data from online and external grids. Data may represent real time values, forecasts or pre-recorded data.Data input is in the standard UCTE data exchange format. We provide customised converters if your current data sources e.g. state estimators use a different format.All currently used phase-shift regulating transformers are modelled precisely.A optimised step control is used to provide converging solutions where other programs fail. The results are precise. They can be verified with recorded cases. We can prove it.