Influence of cross-border energy trading on prices of electricity in Croatia

Due to geographical position and location, the Croatian power system has an opportunity for cross-border electricity trading. Cross-border transaction causes additional power flows in the internal Croatian transmission network that can lead to congestion. Congestion occurs when a transmission line between two locations is loaded close to its limit. In order to investigate influence of cross-border electricity trading on the internal Croatian power system, a computer model of Croatian electricity market is created. Computer software used for that purpose is EMCAS (Electricity Market Complex Adaptive System). This software enables agent-based modeling and simulation. Agent-based means that every market participant is represented as an independent agent with its own strategy and decision making. Moreover, agents have abilities of learning and adapting. In this way, the created computer model is used to simulate two cases; Croatian electricity market without cross-border trading and Croatian electricity market with cross-border trading. Influences of cross-border trading are discussed. Results and conclusion are briefly presented in the paper.