A time driven, computer simulation based electric power system training software package designed to train power system operators is used with an existing set of electric power system modeling algorithms, such as sold under the Powerworld™ brand. The software package includes: a file that provides all the data to be plugged into the electric power system modeling algorithms, a graphics file that shows a picture of the power system and serves as a graphical man-machine interface with the modeling algorithms, a time dimension file that initiates and ends the simulation session and changes specific data in the data file as time progresses and stores a history of selected parameters over the course of the session; and a spreadsheet file, such as an Excel® spreadsheet, that performs calculations on data and presents data in graphical form based on output from the modeling algorithms at the end of the simulation.