NEWS & EVENTS

EVN Deputy General Director Pham Hong Phuong inspected the construction site of Bac Ai Pumped Storage Hydropower Plant - Khanh Hoa Province

28/01/2026 08:38:57

On the morning of January 25th, EVN Deputy General Director Pham Hong Phuong and the Group's working delegation visited to inspect the construction progress of the Bac Ai Pumped Storage Hydropower Plant Project (Bac Ai Tay commune, Khanh Hoa province).

The Bac Ai Pumped Storage Hydropower Plant Project (4 turbines, total capacity of 1,200MW) plays a crucial role in "peak shaving and valley filling" of the load diagram. When completed (expected in 2030), Vietnam's first pumped storage hydropower plant will also be the largest and most modern pumped storage hydropower plant in Southeast Asia. In the photo: EVN Deputy General Director Pham Hong Phuong (in dark purple shirt) listening to representatives of construction units reporting on construction progress.
Up to now, the internal road system (VH1, VH2, VH3A) serving construction and operation (TCVH) spanning dozens of kilometers has been basically completed, ensuring smooth circulation of heavy vehicles, contributing to accelerating construction progress. In the photo: TCVH road VH1 has completed 100% of construction volume.
Power cable tunnel - ventilation and construction tunnel.
The construction package for underground items is one of the most difficult tasks of the project. Construction units have implemented many technical improvement initiatives, optimizing blasting processes and earth and rock transportation to accelerate progress. In the photo: Outside the entrance of VH3A tunnel.
In 2025, the construction site completed the opening of roads serving construction and operation; completed excavation of open foundation pits for main items; deployed excavation of power cable tunnels, drainage tunnels, construction and ventilation tunnels. In the photo: EVN Deputy General Director Pham Hong Phuong encouraged construction units to strive to maintain progress and be determined to successfully accomplish and exceed the key targets of 2026.
Song Cai reservoir belonging to the Tan My irrigation system, playing the role of providing water supply for the operation of Bac Ai Pumped Storage Hydropower Plant.

After inspecting the construction site, EVN Deputy General Director Pham Hong Phuong will hold a construction site meeting with EVNPMB3 and construction units.

EVN.COM.VN

Bac Ai Pumped Storage Hydropower Plant Project, Khanh Hoa Province:

  • Investor: Vietnam Electricity;
  • Investor’s representative for project management and operation: Power Project Management Board 3;
  • Project engineering consultant: Power Engineering Consulting Joint Stock Company 4 (EVNPECC4);
  • Construction location: Bac Ai Tay commune, Khanh Hoa province;
  • Total capacity: 1,200MW;
  • Total investment: Over 21,101 billion VND;
  • Construction commencement: February 2025;
  • Planned schedule: Unit No. 01 to generate electricity in December 2029, Unit No. 02 in April 2030, Unit No. 03 in August 2030, Unit No. 04 in December 2030.

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