Monthly Characterization of the Generation of Photovoltaic Arrays. Microgrid Case CEDER, Soria, Spain

The implicit difficulties (resources and intermittent generation) of renewable energies prevent their insertion with greater security and reliability in electricity networks. However, as the priority of favoring environmental issues and represent one of the main axes of the electricity sector, it is essential to make efforts that characterize the behavior of the effective production of photovoltaic systems in real applications. In this way, the objective of this article is to propose a methodology where the monthly profile of future facilities is estimated. To this end, the received solar radiation (based on the Gamma probability distribution) is modeled along with the generation of seven photovoltaic arrays of different technology, connected to the microgrid of the Center for the Development of Renewable Energies (CEDER), belonging to the Center of Energy, Environmental and Technological Research (CIEMAT), located in Soria, Spain. The measurement of the solar resource was made with a Baseline Surface Radiation Network, and the injection of photovoltaic power to the microgrid was acquired with the help of smart meters. The verification of the procedure was carried out with simulations in Matlab and the statistical analyzes were confirmed with the JMP software. The results may be helpful in sizing a backup model and will collaborate in the proper management of the case study energy.