《电力勘测设计》杂志社有限公司

随着新能源发电全面入市和电力现货市场加快建设，电价的峰谷变化将对光热储能多能互补项目的经济性产生重大影响。本文对市场化交易电价模式下光热储能多能互补项目的经济性开展研究，基于项目典型配置方案构建项目经济性分析模型，在市场化交易电价模式下研究了不同因素对项目综合成本电价的影响。研究表明：资源适宜条件下合理增加风电装机对项目经济性有利；辐射资源量对项目的经济性影响相对可控，可适当扩大项目厂址资源选择范围；光热发电单位成本下降与项目配置优化协同，可以更好地提升项目经济性；市场化电价峰谷差拉大对于光伏发电占比高的项目较为不利，提升项目风电装机比例、加装熔盐电加热系统等措施有望提升项目的经济性。普遍采取的项目一体化配比在市场化交易电价模式下经济性大幅下降，应结合电力系统需求优化项目各电源装机比例等配置方案，辅以机制电价等政策措施、电加热系统等技术方案，提升项目经济性。

With the full market entry of new energy power generation and the accelerated construction of the electricity spot market, the peak and valley changes in electricity prices will have a significant impact on the economic viability of multi-energy complementary projects with concentrated solar power. This paper investigates the economic viability of multi-energy complementary projects with concentrated solar power under the market-oriented trading model. Based on the typical configuration of the projects, an economic analysis model for the projects is constructed to study the impact of different factors on the comprehensive electricity cost of the project under the current level of market-oriented electricity prices. The research indicates that, under suitable resource conditions, reasonably increasing the installed capacity of wind power is beneficial to the economic viability of the multi-energy complementary projects with concentrated solar power. The impact of solar radiation resources on the economic viability of the projects is relatively limited, which allows for an appropriate expansion of the site selection range for the projects. The decline in the unit cost of concentrated solar power generation, in coordination with the optimization of project configuration, can better improve the economic viability of the projects. The further widening of the peak-to-valley difference in market-oriented electricity prices is relatively disadvantageous for projects with a high proportion of photovoltaic power generation. Measures such as increasing the proportion of wind power in the project and installing molten salt electric heating systems are expected to enhance the economic viability of the project. The commonly adopted project configuration has seen a significant decline in economic viability under the market-oriented trading model. It is necessary to optimize the configuration of the project, such as the proportion of installed capacity of each power source, in accordance with the needs of the power system. In addition, policy measures such as mechanism-based electricity prices and technical solutions such as electric heating systems should be employed to improve the economic viability of the project.