Renewable energy is a core issue when it comes to energy resources today. However, the use of tidal energy has received less attention compared to solar and wind energy. This study investigates the technical-economic evaluation of tidal power plants in three areas of Bushehr, Pol, and Khowr-e Musa, all located along the southern coast of Iran. Four economic indices including net present value (NPV), benefit–cost ratio, capital return time, and internal rate of return are used. The study compares a tidal power plant with a solar and a Combined Cycle Gas Turbine power plant bearing a capacity of 10 MW. The results show that the total initial cost of a tidal power plant is 1.92 times higher compared to a PV and 7.16 times higher compared to a CCGT power plant. Due to the potential of solar and tidal energy, the three studied regions are economically different. The results show the NPV of a tidal power plant in Khowr-e Mousa region is 4.90 times higher than a PV power plant and 9.93 times higher than a CCGT power plant. In addition, the cost of energy production per kilowatt depends on the region and the type of power plant technology. The lowest cost of energy production is related to tidal energy in Khowr-e Musa region. The results of sensitivity analysis also show that the highest sensitivity is related to the initial cost and electricity sales rate.

中文翻译：

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伊朗南部海岸潮汐发电厂与太阳能和联合循环发电厂的比较

可再生能源是当今能源资源的核心问题。然而，与太阳能和风能相比，潮汐能的使用受到的关注较少。本研究调查了位于伊朗南部海岸的 Bushehr、Pol 和 Khowr-e Musa 三个地区的潮汐发电厂的技术经济评价。使用了四个经济指标，包括净现值 (NPV)、收益成本比、资本回报时间和内部收益率。该研究将潮汐发电厂与太阳能发电厂和容量为 10 兆瓦的联合循环燃气轮机发电厂进行了比较。结果表明，潮汐发电厂的总初始成本比 PV 高 1.92 倍，比 CCGT 发电厂高 7.16 倍。由于太阳能和潮汐能的潜力，三个研究区域在经济上是不同的。结果表明，Khowr-e Mousa 地区潮汐电站的 NPV 是光伏电站的 4.90 倍，是 CCGT 电站的 9.93 倍。此外，每千瓦的能源生产成本取决于地区和电厂技术类型。最低的能源生产成本与 Khowr-e Musa 地区的潮汐能有关。敏感性分析的结果还表明，最高敏感性与初始成本和售电率有关。最低的能源生产成本与 Khowr-e Musa 地区的潮汐能有关。敏感性分析的结果还表明，最高敏感性与初始成本和售电率有关。最低的能源生产成本与 Khowr-e Musa 地区的潮汐能有关。敏感性分析的结果还表明，最高敏感性与初始成本和售电率有关。