（文章来源：上海证券报） 当日，国家电网有限公司宁夏—湖南±800千伏特高压直流输电工程（"宁电入湘"工程）投产送电。工程 是我国首条获批的以输送"沙戈荒"风电光伏大基地新能源为主的特高压输电通道，对于促进清洁能源大 范围优化配置，提高电力供应保障能力具有重要意义。 作为连接西部新能源富集区与中部负荷中心的重要通道，工程额定电压±800千伏、额定容量800万千 瓦，起于宁夏回族自治区中卫市中宁换流站，途经甘肃、陕西、重庆、湖北，止于湖南省衡阳市衡阳换 流站，线路全长1616公里。 ...

Core Viewpoint - The Hami-Chongqing ±800 kV UHVDC project has been put into operation, significantly enhancing the electricity transmission capacity from Xinjiang to Chongqing, with a distance of 2260 kilometers covered in approximately 0.007 seconds [1][2]. Group 1: Energy Supply and Demand - The electricity demand in Chongqing has been growing at an annual rate of 6%, with a projected growth rate of 11% in 2024, while Xinjiang is rich in energy resources, making it a crucial source for electricity transmission to the east [2]. - The project includes 14.2 million kW of power sources, with over 10.2 million kW coming from wind, solar, and thermal energy, resulting in a renewable energy installation ratio exceeding 70% [2]. Group 2: Technological Innovations - The project faced challenges such as harsh environmental conditions and complex construction logistics, but innovative technologies were employed to enhance construction efficiency and address difficulties [3]. - The ±800 kV converter station in Hami features 14 converters, each with a capacity of approximately 400,000 kW, achieving over 90% localization of equipment [3]. Group 3: Economic Impact - The Hami-Chongqing project has stimulated over 100 billion yuan in upstream and downstream investments, creating more than 10,000 jobs directly related to the project and over 30,000 jobs in related sectors such as equipment manufacturing and energy services [4]. - Hami has developed a wind power equipment manufacturing base, with local supply rates exceeding 70%, significantly boosting the output value of the power transmission and transformation equipment manufacturing industry by 20 billion yuan [4].