Electricity Production Comparison of PV Systems in Greece

Abstract

This paper presents the electricity production comparison of grid connected photovoltaic systems to the electrical power system of Greece. The geographical position of Greece provides very good conditions for the exploitation of solar radiation throughout the year. Throughout the country there is a considerable spread both of the available annual solar radiation (the annual global horizontal radiation ranges from 1.4 to 1.8 MWh/m2) and the ambient temperature. Nevertheless, the annual electricity production does not have such a high fluctuation due to the fact that PV systems in lower solar potential areas operate at lower temperatures compared to higher solar potential areas. Therefore, for fixed PV systems using crystalline silicon modules, the energy production range documented from various areas in Greece varies around 1560 kWh/kWp ± 140 kWh/kWp. The survey includes PV systems of all module technologies as well as fixed orientation, 1 and 2 axis tracking systems.