Photovoltaic Distributed Generation Connecting to the Grid: Analysis of Solar Incident Irradiation and Electricity Generation in the Federal University of Ceara

This article presents an analysis, in August 2017, about the characteristics of solar incident irradiation and the electricity generation from a photovoltaic (PV) distributed generation (DG), installed in the Laboratory of Alternative Energies (LEA) and connected to the grid of Pici Campus/UFC, Fortaleza/CE, Brasil. Data collection of solar irradiation and the electricity generation from the PV DG occurred in August 2017 through an acquisition system; the data are analyzed through the monthly average daily generation (G(mes)), monthly average global irradiation (Ig(mes)), average capacity factor PV (FCmed), efficiency of the PV DG (e(Fv)), standard monthly sample standard deviation (s(m)) and the Pearson coefficient of variation (CVPm). A Ig(mes) of 6.04 kWh/m(2), within a little dispersed band, with CVPm_ig of 0.0810. A G(mes) of 8.65 kWh, with FCmed of 24.04%, in a low dispersion band, with CVPm_G of 0.0736, thus reflecting in the electricity generation the high values irradiation of the region in which the study was performed. The average (eF)v of the period under study was 14.71%, showing, also, that a high irradiation does not mean that the PV DG will have a high e(Fv).