全球首个"双塔一机"光热储能电站进入全系统试运行

Core Insights - The world's first "dual-tower one machine" solar thermal energy storage power plant has entered full system trial operation, marking a breakthrough in tower-type solar thermal power generation technology [1][4] - The project is part of the national "14th Five-Year Plan" and aims to provide stable power supply for large-scale wind and solar energy bases in China [4] Project Overview - The solar thermal energy storage power plant has an installed capacity of 100,000 kilowatts and features 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 utilize special ultra-white glass with a reflection efficiency of 94%, allowing for solar tracking [3] Technology and Efficiency - The "dual-tower one machine" model employs dynamic focusing technology to adapt to varying solar angles, improving optical efficiency by approximately 24% compared to the "single tower single machine" model [3] - The thermal energy collected is stored in high-temperature molten salt at 565°C, enabling stable heat storage and allowing for 24-hour uninterrupted power supply [3][4] Operational Significance - The full system trial operation is a critical transition from construction to operational phase, ensuring the project meets safety and stability requirements for full-chain operation [4] - The solar thermal power generation complements wind and solar power, providing rapid energy release during low output periods, thus stabilizing grid frequency [4] Environmental Impact - Upon commissioning, the solar thermal energy storage plant 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]