Application of the REI equivalent for operations planning analysis of interchange schedules

The authors present a method of using the REI equivalent to perform analyses of potential interchange schedules using real-time load flow cases. Multiple interchange transactions can be quickly and accurately simulated by the selective, manual adjustment of REI node injections. The REI equivalent was selected since external load and generation are represented on nodes as physically meaningful values. These values can be directly adjusted by the planner to represent potential transactions without intermediate calculations or re-equivalencing. The results of two examples, one using actual real-time values, are provided.<>