Hybrid microgrids for electricity production: techno-economic analysis of a system located in Meknassy, Tunisia

Hybrid micro-grid systems are a novel technology which is spreading worldwide and can represent a possible solution to the electrification issue, as deployment of these hybrid plants can be an optimum way to fully exploit renewable resources and meet local energy demands. In Tunisia, although access to electricity is guarantee, clean energy is not widespread at national level; however, RESs are abundantly available, hence the project developed wants to investigate the feasibility of a biomass and photovoltaic energy system located in a rural town in the central-western region of Tunisia, called Meknassy. This work gives, firstly, a worldwide overview on technical aspects and favourable environment of micro-grids. Then, the Tunisian context is analysed: this is crucial for the delineation of a clear and predictable regulatory framework for the micro-grid feasibility. The design of the plant is based on solar radiation and biomass availability in the community of Meknassy, which is composed of municipal organic waste, wastewater and agriculture and livestock wastes. Furthermore, the forecasting of the daily load profile of the electric demand is performed. Finally, the analysis of technical and economic aspects is implemented on Homer Pro software which identifies the most viable solution.