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Optimal size of photovoltaic systems with storage for office and residential loads in the Italian net-billing scheme

This paper deals with energy and economic analysis of grid-connected photovoltaic (PV) systems with storage. According to the current Italian market rules, the first goal is to calculate the capacities of PV systems and batteries corresponding to the cost-optimal solution. Then, cost-effective solutions are investigated to maximize self-consumption, minimizing grid injections. Simulations are performed for one year, starting from irradiance data and load profiles from office and dwelling house users in Italy.