This study aims to assess the technical, economic, and environmental aspects of parabolic trough and solar tower power plants under the climatic conditions of south-central regions of Iran with an average direct normal irradiation of about 6 kWh/m²/day. The effects of power plant capacity, cooling system, solar multiple, and hours of thermal energy storage on the techno-economic performance of the power plants are examined. In addition, the environmental metrics including reduction of CO₂ emissions, fossil fuel saving, and energy payback time are evaluated. Four power plant capacities of 20, 50, 100, and 200 MW_e along with two cooling options, including dry and wet are investigated. Besides, the solar multiple and capacity of thermal energy storage are varied from 1.0 to 4.0 with a step of 0.1, and from 0 to 18 h with a step of 1 h, respectively. The ground weather data from the meteorological organization of Iran are used as input data in the System Advisor Model software. Based on the results, the optimal configurations for the studied power plants concerning the techno-economic parameters are determined. It is revealed that the dry-cooled solar tower power plant with a capacity of 100 MW_e, 14 h storage system, and solar multiple of 3.0 is the most efficient configuration under the studied climatic conditions. For this concentrating solar power plant, the levelized cost of electricity and solar-to-electricity efficiency are 11.3 ¢/kWh_e and 14.7%, respectively. Furthermore, the energy payback time is about 15 months, annual CO₂ emissions reduction is 399 kilotons, and annual fossil fuel saving is 190 million cubic meters of natural gas.

这项研究的目的是评估伊朗中南部地区气候条件下抛物线槽和太阳能塔式发电厂的技术，经济和环境方面，平均直接正常辐射约为6 kWh / m ² /天。研究了电厂容量，冷却系统，太阳能倍数和热能存储小时数对电厂技术经济性能的影响。此外，还评估了包括减少CO ₂排放，节省化石燃料和能源回收时间在内的环境指标。四个发电厂的容量分别为20、50、100和200 MW _e以及两个冷却选项，包括干式和湿式。此外，太阳能的倍数和热能存储量分别从1.0到4.0，以0.1步长变化；从0到18 h，以1 h步长变化。来自伊朗气象组织的地面天气数据在System Advisor Model软件中用作输入数据。根据结果​​，确定与技术经济参数有关的研究电厂的最佳配置。据透露，容量为100 MW _e的干冷太阳能塔式发电厂，14小时存储系统和3.0的太阳能倍数是研究气候条件下最有效的配置。对于这个集中式太阳能发电厂，平均的电力成本和太阳能发电效率分别为11.3美分/ kWh _e和14.7％。此外，能源回收期约为15个月，每年减少的CO ₂排放量为399吨，每年节省的化石燃料为1.9亿立方米的天然气。