Operating regime efficiency analysis of a small photovoltaic power plant

Solar energy represents one of the most promising renewable resource, being widely exploited nowadays. Both, thermal and photovoltaic conversion installations are now used from small domestic applications to large power plants. At the Electrical Engineering Faculty of Iasi, Romania, a small 4.32 kW, photovoltaic power plant was installed, for didactical purposes and also energy production, as is supplying several consumers from the Power Engineering Departments building. In this paper the photovoltaic power plant will be presented along with some data regarding the electricity coverage level while supplying several consumers with different operating regimes.