"所谓'以热定电'，简单来说，就是指机组的发电负荷必须根据实时供热需求来决定。"国家能源集团安 徽公司宿州电厂董事长吴德伟解释，为了保证向周边工业区或居民区持续、稳定供热，机组必须维持较 高锅炉负荷，从而必须产生相应电量。 这种强制联动的运行模式，导致机组无法根据电网的实时需求灵活地调节发电量：在供热需求大时，即 使电网不需要那么多电力，机组也不能减少发电；反之，在电网需要更多电力支撑时，如果供热需求不 足，机组也无法有效提升发电能力。 为破解这一难题，国家能源集团于2022年启动"基于熔盐储热的煤电灵活性关键技术研究及示范应用"项 目，旨在通过熔盐储热技术，大幅提升能源综合利用效率，有效解决煤电机组在深度调峰、顶峰发电与 稳定供热之间的多重矛盾。 走进国家能源集团安徽公司宿州电厂，最先映入眼帘的是两座米色圆柱形巨罐。它们如巨人般比肩而 立，旁边银龙般的管道纵横蜿蜒。 这是我国最大的"煤电+熔盐"储能项目、全国首台套吉瓦时级煤电熔盐储换热成套装备及控制系统、国 家首批绿色低碳先进技术示范项目。 "这个项目于8月底建成投产，它破解了传统煤电'以热定电'的难题，让煤电机组有了灵活调峰的'超能 力'，为全国煤电灵活 ...

Core Insights - The world's first "dual-tower one machine" solar thermal energy storage power plant has successfully entered the final debugging phase, indicating that the entire system has successfully undergone trial operation [1] Group 1: Technology and Operation - The solar thermal power plant features two approximately 200-meter high heat-absorbing towers equipped with 27,000 heliostats that concentrate sunlight to generate stable clean energy [2] - The heat transfer system utilizes molten salt, which has a boiling point of 600°C, allowing it to store several times more heat than water [8] - The molten salt storage system can store a maximum heat equivalent to 600,000 kilowatt-hours, providing power for up to 6 hours [8] Group 2: Advantages and Future Prospects - The "dual-tower one machine" design overcomes the capacity limitations of traditional single-tower solar thermal power plants, enhancing power generation efficiency, total output, and energy storage capabilities [10] - This innovative approach paves the way for the large-scale development of solar thermal storage technology in China [10] Group 3: Broader Context - Various forms of solar thermal power plants, including tower, trough, linear Fresnel, and dish Stirling technologies, are contributing to China's energy system by providing stable power [11] - Solar thermal power plants are being established in regions like Gansu, Xinjiang, and Qinghai, acting as "artificial suns" that support China's transition to a clean and low-carbon energy system [11]