INDEX OF COMPLEMENTARITY BETWEEN WINDAND SOLAR ENERGY IN VLORA, ALBANIA

The study aims to determine the complementarity index for renewable energy in Vlora, Albania. The city’s electricity supply is primarily based on hydroelectric energy. With the increasing load demand in recent years, there is a growing need to exploit renewable energy sources, driven by Albania’s favorable geographic location. Analyzing wind and solar energy data at different temporal and spatial scales is essential for optimizing electricity production from these sources. The complementarity between these two energy sources can reduce the need for energy storage in hybrid systems. Identifying the best complementarity ensures continuous energy supply while preventing overproduction. By examining the monthly average wind speed and solar radiation data, we can predict the monthly electricity production using a photovoltaic system and turbine suitable for the area. Based on the forecast graphs for solar and wind energy production, we determine the complementarity index in time, energy, and amplitude. The results show a moderate level of synchronization in their production over time, although they do not always fully complement each other.