Voith Secures Contract For Vietnam’s First 1,200 MW Pumped Storage Project

Voith Hydro Shanghai Ltd. and POWERCHINA Zhongnan Engineering Corporation have secured a major contract to supply core electromechanical equipment for Vietnam’s 1,200 MW Bac Ai pumped storage hydropower project. The consortium has signed the contract with Vietnam Electricity (EVN), with Voith Hydro Shanghai serving as the consortium leader.

Located in Khanh Hoa Province, the Bac Ai project will have an installed capacity of 1,200 MW, comprising four generating units of 300 MW each. It is Vietnam’s first pumped storage hydropower project and represents a significant milestone in the country’s efforts to strengthen its energy infrastructure and accelerate the clean energy transition.

The project is included in Vietnam’s Power Development Plan for 2021–2030, with a vision extending to 2050. Once operational, the facility is expected to support grid stability, improve power system flexibility and strengthen the integration of renewable energy sources.

Under the contract, Voith Hydro Shanghai will lead the delivery of the core electromechanical equipment package. The scope includes pump-turbines, motor-generators, and governor, excitation and control systems. These components will play an important role in the operation, efficiency and reliability of the pumped storage facility.

During the contract signing ceremony, EVN’s chairman and representatives of the consortium discussed the project’s development and opportunities for future cooperation. Both parties agreed to maintain close communication and coordination throughout the implementation process. EVN also shared its future investment plans for power generation and grid infrastructure and expressed interest in exploring additional opportunities with its partners.

Steve Lewis, President and CEO of Voith Hydro China and Asia Pacific, said the Bac Ai project marks an important development in Vietnam’s energy transition. He highlighted that the contract reflects Voith’s technological capabilities and international experience in large-scale pumped storage projects.

The project is expected to strengthen Vietnam’s power system by providing greater flexibility and supporting the reliable integration of renewable energy. It also marks an important step in expanding the country’s pumped storage hydropower infrastructure.