This study aims to raise awareness of renewable energies' importance from an economic and environmental perspective and provide reference data for the investment decision in Tunisia's renewable energy. It focuses on the techno-economic analysis of a grid-connected photovoltaic-wind power system to supply residential load in 26 cities in Tunisia using the multi-year module. Three types of small wind turbines are studied to select suitable wind turbines for each site based on the capacity factor concept. HOMER simulation software is used to design and determine the feasibility of the systems. The optimal configuration is obtained at each site of the country in terms of the lowest net present cost and CO₂ emissions using the Wes-tulipo wind turbine. The obtained results show that wind energy is suitable for most cities. It is even more profitable and competitive than photovoltaic (PV) in northern and central Tunisia. In contrast, the PV system has great potential for development in the southern regions of the country. The economic benefit of the renewable energy project for each site is between 11 and 16 years during the 25-years project lifetime, proving its economic attractiveness. Furthermore, this study's sensitivity analysis proves that the PV system becomes competitive if its capital cost is reduced to less than 57% of its current capital cost.

这项研究旨在从经济和环境角度提高对可再生能源重要性的认识，并为突尼斯可再生能源的投资决策提供参考数据。它着重于使用多年模块对并网光伏风力发电系统的技术经济分析，该系统可为突尼斯的26个城市提供居民负荷。对三种小型风力涡轮机进行了研究，以基于容量因子的概念为每个站点选择合适的风力涡轮机。HOMER仿真软件用于设计和确定系统的可行性。以最低的当前净成本和CO _2的价格在该国的每个站点获得最佳配置使用Wes-tulipo风力涡轮机的废气排放。获得的结果表明，风能适用于大多数城市。在突尼斯北部和中部，它比光伏（PV）更具利润和竞争力。相反，光伏系统在该国南部地区具有巨大的发展潜力。在25年的项目生命周期中，每个站点的可再生能源项目的经济利益在11到16年之间，证明了其经济吸引力。此外，这项研究的敏感性分析证明，如果将光伏系统的资本成本降低至当前资本成本的57％以下，则该光伏系统将具有竞争力。