Establishing an Optimal Residential RES PV Source by Modelling

The analyzed Microgrid (MG) is implemented in the Research Centre of Transilvania University of Brasov Institute and consists in an 8 kW photovoltaic (PV) system, a grid connecting PV inverter of 4.6 kW and a 48V Li-ion stationary battery interfaced with the MG by a 6 kW inverter which provides around 20 kWh storage capacity. The main issue of this paper is to establishing by modeling, an optimal residential PV renewable energy source (RES), that provide for a given inverter the best energy production based on the solar potential from Brasov area. Simulations are accomplished in Homer Pro software in order to estimate the optimal PV power source to obtain a maximum amount of energy for a given PV system structure.