风从草原来、电送全中国 跨越山海的绿电输送

Group 1 - The "14th Five-Year" plan emphasizes the construction of a clean, low-carbon, safe, and efficient energy system, with Inner Mongolia playing a crucial role in transmitting electricity across the country [1] - Inner Mongolia has the largest installed capacity of renewable energy in China, and the region's clean energy is essential for meeting the national electricity demand during peak seasons [1] - High-voltage transmission technology is key to reducing power losses during long-distance electricity transmission, as it allows for higher voltage and lower current, minimizing heat losses [1] Group 2 - The Zhangbei-Shengli 1000 kV UHVAC project, a key project under the "14th Five-Year" electricity development plan, will be operational by October 31, 2024, enhancing the safety and stability of electricity transmission in North China [2] - The project includes the expansion of three UHV substations, adding a capacity of 9 million kVA, and is expected to deliver over 70 billion kWh of electricity annually, with 72% coming from renewable sources [3] - The construction of 26 UHV supporting facilities in Inner Mongolia during the "14th Five-Year" period has resulted in a cumulative electricity export exceeding 630 billion kWh, with approximately 145 billion kWh from clean energy [5] Group 3 - The development of UHV technology presents challenges, particularly in the maintenance and fault detection of GIS (Gas Insulated Switchgear), which is critical for the safe operation of the power grid [4] - A panoramic perception laboratory for long-term operation of UHV GIS has been established to enhance research and development in fault detection and prevention [4] - Inner Mongolia has established green electricity trading partnerships with eight provinces, leading the nation in green electricity transaction scale as of 2024 [5]