来源：经济参考报 8月20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(以下简称"宁电入湘"工程)投产送 电，这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，也是我国今年 投产送电的第三条特高压直流输电工程。 我国能源投资加速"向绿向新"聚集。近期一批重大项目有力推进，新型能源体系建设正酣。业内人士认 为，下半年能源投资将继续保持良好势头，新能源、特高压等建设提速的同时，智能电网、新型储能、 绿氢等赛道具备较大增长潜力。 近20个足球场大小的厂区内塔架林立、线网交织，电流声作响，近两层楼高的高端和低端换流变压器依 次排开……位于湖南省衡南县的"宁电入湘"工程±800千伏衡阳换流站里，跨越1616千米的特高压线路在 此"落脚"。 国网湖南省电力有限公司新闻发言人朱军飞介绍说，作为一条能源跨区域调配的"绿色动脉"，"宁电入 湘"工程总投资281亿元，配套电源装机容量1764万千瓦，其中新能源1300万千瓦，包括风电400万千 瓦、光伏发电900万千瓦。新能源装机占比超70%，创下同类工程新高，也让湖南电网"含绿量"不断提 升。 据了解，"宁电入湘"工程整体投产后，额定最 ...

Core Points - The "Ningdian Ruxiang" project, a ±800 kV UHVDC transmission line, has completed its 168-hour trial operation and started delivering electricity to Hunan, marking the third major power transmission channel from Ningxia [1] - The project spans 1616 kilometers and passes through six provinces, with a total installed capacity of 17.64 million kW, of which 13 million kW comes from renewable energy sources, contributing over 50% of green electricity [1] - The total investment for the project is 28.1 billion yuan, with an estimated 70 billion yuan in related investments in renewable energy, coal power, and energy storage projects in Ningxia [1] Industry Impact - The project enhances energy cooperation between Ningxia and Hunan, with local Hunan enterprises supplying key components such as high-end converter transformers and capacitors [2] - The construction of a 3 million kW wind-solar energy base by Hunan Energy Group in Ningxia is underway, with the first phase of a 1 million kW solar project expected to be connected to the grid by July 30 [2] - The project is expected to provide reliable electricity for Hunan enterprises and potentially lower their electricity costs, fostering economic development in both regions [2]