In the topic of this master thesis, an analysis of an autonomous hybrid system will be made, to provide electrical energy independence of considered household on the island of Rab, in Croatia. It will show the idea and model of this autonomous hybrid system, the calculation of production and energy consumption, the financial requirements and its costs. Furthermore, current models of wind turbines and solar systems will be described, their application, advantages and disadvantages, environmental impact and more. The Homer software was used for the analysis and calculations. It is assumed that the household considered in this analysis is not connected to the electric grid. The autonomous hybrid system uses only the renewable energy of sun and wind, to provide the energy independence of this household. The optimization of size and specifications of wind turbine, photovoltaic modules and other components of this autonomous system is a very important phase that has high cost implications on the price of such energy produced. In the Republic of Croatia, the use of such systems is at the very beginning, it gives an interesting entrepreneurial market possibilities and it gives a better perspective and opportunities for people living on a distant islands.

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