China-Laos 500-kilovolt Interconnection Power Transmission Project

under construction

The project involves the construction of a 500-kilovolt power transmission line spanning 183.5 kilometers from Namo in Laos' Oudomxay Province to Xishuangbanna in China's Yunnan Province. It aims to support two-way power transmission of up to 1.5 million kilowatts and deliver about 3 billion kWh of clean electricity annually. Heavy-lift drones and helicopters are used to transport tower parts to reduce environmental damage, especially in dense tropical forests inhabited by Asian elephants. The project has completed foundation laying for 255 transmission towers with minimal new road construction, significantly reducing land use and tree felling.