Planning models show comparative results

Electricity supply planning models are built to assist decision-makers in keeping future supply and demand in balance. The planning problem can be approached in different ways. This article focuses on two planning models and compares how they approach and resolve the planning problem. SEPU is an expert model that can be used for detailed reliability studies, mainly from a short-term perspective. PowerPlan is a planning model for mid-term scenario studies. With PowerPlan, "what if" questions can be answered in an interactive and fast manner. Although developed with different goals in mind, PowerPlan and SEPU are to a certain degree complementary. The area of overlap is used here for comparison of the performance of the models in simulating a set of scenarios. The points of departure of the scenarios for both models match each other as well as possible in order to get comparable results.