央视《新闻联播》：中老500千伏联网工程输电线路全线贯通

Group 1 - The core message is the completion of the China-Laos 500 kV interconnection project, which is a significant energy cooperation initiative under the Belt and Road Initiative [1] - The project spans 177.5 kilometers from Yunnan, China, to Udomxay, Laos, and is set to commence operations in April [1] - The interconnection will enhance the power exchange capacity between the two countries to 1.5 million kilowatts, enabling the transmission of 3 billion kilowatt-hours of clean electricity annually [1]