Nghia Lo 220kV Substation Project and the Huoi Quang - Nghia Lo 220kV Transmission Line Project are invested by EVNNPT, managed and operated by CPMB, and operated by Power Transmission Company No. 1.

Relevant units witness energizing moment of Nghia Lo 220kV substation project. Photo: Le Linh

Nghia Lo 220kV substation is built in Nghia Lo commune, Nghia Lo town, Yen Bai province. The scale of installation is 1 220kV-250MVA autotransformer, and there is land reserve for installing another 220kV transformer in the future.

Huoi Quang - Nghia Lo 220kV is scaled to 2 circuits, over 103km long with 200 pole positions, 93 corridor anchorages. The project is built in Muong La and Bac Yen districts of Son La province and Tram Tau and Van Chan districts of Yen Bai province.

The two projects, once completed, will help release capacity from small and medium hydropower plants in the Northwest region. In addition, they will help reduce power loss in the transmission grid, strengthen regional power system connectivity; improve safety, reliability and stability in operating regional and national power systems, meet the load demand of the Northwest region; and enhance power security for the North from the hot season of 2025.

This is also one of the key projects in Plan No. 7089/KH-TLD-EVN dated December 8, 2024, of the Vietnam General Confederation of Labour and Vietnam Electricity launching an emulation movement to accelerate the investment and construction progress of EVN's key projects in 2025.

Translator: Mạnh Hùng