Techno-economic analysis of a stand-alone photovoltaic system with three different storage systems for feeding isolated houses in south Algeria

This paper presents a technical and economic simulation of a solar photovoltaic system with three different storage types. Battery lead-acid, battery lithium-ion, and hydrogen storage have been used to cover the consumption of houses in an isolated village in southwest Algeria. The main objective of this study is trying to use the roof of the houses to cover consumption by installing solar panels and build a room for electric equipment like inverter, battery, power system management, and so forth. The proposed hybrid system size is 50 photovoltaic panels with 7 kW electrolyzer and a tank of 6 kg for hydrogen storage. The hourly consumption of this houses was estimated during two seasons; season of low consumption (winter) and season of high consumption (summer). The results obtained from Hybrid Optimization Model for Electric Renewable PRO software have been validated using MATLAB/Simulink software. The results show that the best storage system is the hydrogen storage due to low excess energy with no unmet load, the results show also that the system that uses hydrogen storage is the most economic system compared to the other storage types (lead-acid and lithium-ion) due to low investment cost and long lifetime. This system costs 51282Euro.