Economic analysis and energy utilization of renewable energy to supply electric charge with approach of storage resources

In this research work, the technical and economic analysis of the use of storage devices in a hybrid wind/solar system is performed in order to provide a maximum electrical load of the residential buildings. For this aim, the two scenarios of grid-connected and off-grid systems are studied. The two parameters of high reliability and cost per production capacity are used. According to these two parameters due to the low cost of the grid energy and the high cost of purchasing, the second scenario cell is selected with the grid-connected system approach. Based on this system, the final generation that has a surplus of production sells the energy to the network, and uses the network to supply the load when there is a lack of power to supply the load. According to the cases mentioned in the second scenario, more than 50% of the requested load is supplied by the photovoltaic cell, which indicates the high potential of the studied area. For the selected system, the return on investment is 7.53 years, considering that the cost of energy is 0.13 $/kWh.