青海超级镜阵高原追“光”——探访世界首个风光热储调荷多能互补项目

Core Insights - The multi-energy complementary integrated optimization national demonstration project in Golmud, Qinghai Province, showcases advanced technology in renewable energy, combining solar, wind, thermal, and storage systems [1][2][3] Group 1: Project Overview - The project has a total installed capacity of 700,000 kilowatts, including 50,000 kilowatts of solar thermal, 200,000 kilowatts of photovoltaic, 400,000 kilowatts of wind power, and 50,000 kilowatts of energy storage [1][2] - It is the world's first project to integrate wind, solar, thermal, storage, regulation, and load, serving as a testing ground for multi-energy complementary technology [1][2] Group 2: Technological Innovations - The solar thermal project utilizes a tower system with a maximum temperature of 565 degrees Celsius, converting solar energy into high-temperature molten salt for steam generation [1][2] - The energy storage system employs lithium iron phosphate batteries, which became the largest power-side centralized electrochemical storage station in China upon its first discharge to the grid [2] Group 3: Energy Output and Efficiency - The demonstration project generates approximately 1.263 billion kilowatt-hours of electricity annually, saving about 401,500 tons of standard coal each year [2] - During periods of reduced transmission capacity, the project maintains a wind and solar abandonment rate of less than 5%, enhancing energy stability and supporting ecological development [2] Group 4: Regional Energy Landscape - Qinghai Province has abundant clean energy resources, ranking second in national solar radiation and being the fourth-largest wind farm in China, with over 100,000 square kilometers of desert land available for renewable energy development [3] - By 2024, Qinghai's total installed power capacity is expected to exceed 71 million kilowatts, with clean and renewable energy accounting for 94.6% and 70% of the total capacity, respectively [3]