Optimal parameterization of a PV and a battery system add-on for a consumer

Photovoltaic systems are widespread renewable energy sources that can be installed at a variety of locations (private houses, residental or nonresidental buildings, factories, warehouses...). Because of their sun dependance, they can provide more than enough energy during the day, but no energy during the night. Having a battery energy storage system can ensure that the excess of energy is stored and used later to avoid selling the energy at low price and then buying the energy at higher price. Not only that a photovoltaic system in a combination with battery energy storage system reduces monthly electricity bill for a consumer, it also contributes to environmental protection in terms of reduced CO2 emissions and increased usage of renewable energy sources. To maximize the contributions while minimizing the price of the installations, this paper introduces a procedure to find the optimal sizing parameters of a photovoltaic and a battery energy storage system for a site.