Inside the second largest hydropower project in Lao Cai after the merger

Đinh Đại |

Lao Cai - Bac Ha Hydropower Plant with a capacity of 90 MW is currently the second largest hydropower plant in the province.

The Bac Ha hydropower plant is the second largest hydropower project in the new Lao Cai province, after Thac Ba Hydropower Plant, the old Yen Bai province (120 MW).

The project not only plays a role in providing electricity but also carries a particularly important responsibility in ensuring the safety of dams, regulating water resources and protecting the ecological environment of downstream areas.

Through research, the Bac Ha Hydropower Plant was built on the Chay River, invested with a capital of over VND 2,300 billion, including 2 generators with a total capacity of 90MW.

The No. 1 unit was put into operation and connected to the national grid from June 2012, and in September 2012, the No. 2 unit was also completed and connected to the commercial power generation grid.

Toan canh dai cong trinh thuy dien lon thu 2 Lao Cai sau sap nhap. Anh: Dinh Dai
Overview of the second largest hydropower project in Lao Cai after the merger. Photo: Dinh Dai

In addition to providing a clean and stable source of electricity for the national grid, the unit is also a fulcrum for socio-economic development for many localities in the Northwest region.

In mid-September, present at this large hydropower project, Lao Dong Newspaper reporters recorded the majestic image of the factory on the lush green Chay River.

Mr. Nguyen Van Tinh - Deputy General Director of Bac Ha Hydropower Joint Stock Company - said: "Storm Yagi in 2024 caused many hydropower plants in Lao Cai province to stop operating, but at Bac Ha Hydropower Plant, all plant activities still take place continuously. Along with keeping the plants in stable operation, the work of ensuring safety for workers is also given great attention".

Moi to may co cong suat phat dien la 45MW. Anh: Dinh Dai
Each generator has a power generation capacity of 45MW. Photo: Dinh Dai

Information from Bac Ha Hydropower Joint Stock Company, in 2025, the unit plans to produce more than 309 million kWh.

Currently, the water level of Bac Ha hydroelectric reservoir in the upstream reaches 180m, while in the downstream is 123.9m.

Some images recorded at Bac Ha Hydropower Plant:

Thuy dien Bac Ha la thuy dien lon nhat Lao Cai truoc sap nhap, co cong suat 90MW voi 2 to may, san luong dien hang nam la 378 trieu kWh, duoc khoi cong nam 2004 va hoan thanh vao nam 2012. Anh: Dinh Dai
Bac Ha Hydropower Plant is the largest hydropower plant in Lao Cai before the merger, with a capacity of 90MW with 2 generators, annual electricity output of 378 million kWh, started in 2004 and completed in 2012. Photo: Dinh Dai
Ho chua cua nha may keo dai hon 40km tu xa Coc Ly cu den huyen Si Ma Cai cu, dung tich khoang 171,1 trieu m³, dien tich luu vuc khoang 3.465km². Anh: Dinh Dai
The factory's reservoir stretches more than 40km from the old Coc Ly commune to the old Si Ma Cai district, with a capacity of about 171.1 million m3, and a basin area of about 3,465km2. Photo: Dinh Dai
Phia sau Thuy dien Bac Ha, nguoi dan dang phat trien kinh te tu hoat dong nuoi ca long. Anh: Dinh Dai
Behind the Bac Ha Hydropower Plant, people are developing their economy from cage fish farming activities. Photo: Dinh Dai
2 to may phat dien voi cong suat 90MW. Anh: Dinh Dai
2 generators with a capacity of 90MW. Photo: Dinh Dai
Cac trang thiet bi dam bao an toan tai nha may. Anh: Dinh Dai
Safety equipment at the factory. Photo: Dinh Dai
Lanh dao cong ty thuong xuyen theo doi qua trinh van hanh cac to may phat dien. Anh: Dinh Dai
The company's leaders monitor the operation of generators. Photo: Dinh Dai
Cung voi do la luu giu chat thai nguy hai mot cach an toan, tranh o nhiem moi truong. Anh: Dinh Dai
Along with that, it is necessary to store hazardous waste safely, avoiding environmental pollution. Photo: Dinh Dai
Theo thong ke, tren dia ban tinh Lao Cai hien co 105 du an da hoan thanh phat dien, voi tong cong suat lap may 1.768,85 MW. Trong 7 thang nam 2025, cac nha may thuy dien dong gop vao ngan sach 710 ti dong va du kien se tiep tuc tang trong thoi gian toi.
According to statistics, in Lao Cai province, there are currently 105 projects that have completed power generation, with a total installed capacity of 1,768.85 MW. In the first 7 months of 2025, the total amount of electricity produced by factories reached 3,483 million kWh, contributing 710 billion VND to the budget and is expected to continue to increase in the coming time.
Đinh Đại
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