As China Builds the Grid, Laos’s Power Ambitions Enter a New Phase

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On the first day of January 2026, the 230 kV Thavieng-Mahaxay transmission line project officially broke ground. Designed to connect northern and central Laos, the project is managed by Électricité du Laos Transmission Company (EDL-T), a joint venture in which China Southern Power Grid Company (CSG) holds a 90% stake. 

In parallel, the China-Laos 500 kV cross-border power line project is entering its final stage. While the 230 kV line strengthens domestic connectivity, the 500 kV interconnection forms part of a high-voltage backbone designed for long-distance regional power trade. Currently 86% complete, it is set to enable high-volume electricity exchange between Laos and China’s Yunnan province, with wider regional implications.

Behind these ambitious projects lies a major reshuffle of the regional power system. China is stepping up its role in shaping Southeast Asia’s grid infrastructure, with impacts that go beyond steel and wires.

Transmission infrastructure is inherently strategic. Power grids decide how electricity flows, who sets the standards and how the regional connectivity is designed. By having the long-term management of Laos’ grid system,  China is becoming the architect of Southeast Asia’s power network. 

Source: Wikipedia