Energy performance evaluation of a hybrid system in the Athos State

Abstract

Based on the use of long-term energy measurements for an entire year, obtained from a hybrid station operating in the Monastery of “Simonos Petras” in Northern Greece, evaluation of the system energy management plan is presently carried out. The hybrid system under investigation comprises of a hydropower station, a photovoltaic (PV) generator and a diesel engine, while the entire installation is also supported by the employment of a battery bank. According to the analysis of results obtained, reassessment of the current energy management plan is as proved necessary in order to raise restrictions posed to the energy contribution of the PV generator. For this purpose, the theoretical maximum energy contribution of the PV generator is estimated and replacement of the diesel engine operation is explored, with results obtained being rather encouraging for the system future operation.