Study and simulation of photovoltaic installation connected to the grid with storage system

In the present paper, a new approach to the management of energy resources in a research laboratory is proposed and evaluated by a simulation for the PV installation realized for the Tunisian-Italian cooperation project DE.DU.ENER.T, using renewable energy and economic criteria. The aim of this project is to improve energy efficiency order to minimize the electricity cost consumed at the laboratory, because according to the bills of electricity received we noticed that there is a high consumption of electrical current, from the STEG grid, and especially by the energy intensive equipment such as drying ovens and all the workstations. So we targeted to install a photovoltaic field of 12KWc to reduce these bills by using other sustainable, green and clean sources. In addition, a theoretical study of the PV system sizing realized manually in order to know in the first hand the compatibility between the different equipment of this installation and to compare the results with those found by the SMA Sunny Design software in the second hand. Then, we present the different result obtained by the simulation of our installation using a PV∗SOL simulation software. We designed and managed these systems optimally to promote the self-consumption of the electric energy in the building of LPT Research laboratory. We will focus on the use of the PV system by evaluating the impacts of electricity generation using renewable energy levied on electricity grid (energy injection and extraction) and the economies that can be achieved during the hours Operating.