全球首个！我国这一领域实现重要技术突破

Core Viewpoint - The world's first "dual-tower one machine" solar thermal energy storage power station has entered full system trial operation, marking a breakthrough in tower-type solar thermal power generation technology and providing a new technical path for stable power supply from large-scale wind and solar energy bases in China [1][4]. Group 1: Project Overview - The solar thermal energy storage power station has an installed capacity of 700,000 kilowatts, utilizing an innovative configuration of "two heat-absorbing towers and one steam turbine generator set" [3]. - The two heat-absorbing towers are approximately 200 meters high and are spaced about 1 kilometer apart, surrounded by nearly 27,000 heliostats with a total reflective area of 800,000 square meters [3]. - The heliostats are made of special ultra-white glass with a reflection efficiency of 94%, capable of tracking the sun's movement [3]. Group 2: Technical Innovations - The "dual-tower one machine" model employs dynamic focusing technology to adapt to varying solar angles, resulting in a 24% increase in optical efficiency compared to the "single tower single machine" model [3]. - The thermal energy collected is stored in high-temperature molten salt at 565°C, allowing for stable heat storage and enabling the power station to provide uninterrupted power for 24 hours [3][4]. Group 3: Operational Significance - The full system trial operation is a comprehensive test of the entire power station's processes, including solar collection, molten salt storage, steam generation, and grid compatibility [4]. - The project represents a key transition from construction to operational phase, ensuring the technical conditions for safe and stable operation across the entire chain [4]. Group 4: Environmental Impact - The solar thermal energy storage power station is part of the national "14th Five-Year Plan" and is expected to provide 1.8 billion kilowatt-hours of clean electricity annually, equivalent to saving approximately 580,000 tons of standard coal and reducing carbon dioxide emissions by about 1.53 million tons [4].