The V1-2 Wind Power Plant Expansion Project, designed with a capacity of 48 MW, spans approximately 215.2 hectares, including 2.5 hectares of land use within the Dinh An Economic Zone and 210 hectares of sea area in Truong Long Hoa Ward, Vinh Long Province. With a total investment of around $94 million, the project is slated for commercial operation in Q4/2026. Spearheaded by Truong Thanh Duy Hai Wind Power Joint Stock Company, a member of TTVN Group, the project is backed by Tokyo Gas Co., Ltd. (Japan), Japan’s largest urban gas provider and a global leader in liquefied natural gas supply. Embracing its vision of “beyond Tokyo, beyond gas, and toward the future,” Tokyo Gas has committed to investing in this initiative.
The capital contributors to Truong Thanh Duy Hai Wind Power Joint Stock Company include: Tokyo Gas Co., Ltd. (Japan) – 49%; Truong Thanh Vietnam Group Joint Stock Company – 36%; and Truong Thanh Energy Joint Stock Company, a subsidiary of TEGROUP – 15%.
The Dong Hai 3 Wind Power Plant Project (V3-3 location), also designed with a capacity of 48 MW, covers approximately 309 hectares, including 4 hectares of land use within the Dinh An Economic Zone and 305 hectares of sea area in Dong Hai Commune, Vinh Long Province. Scheduled for commercial operation in Q4/2026, the project is led by Dong Hai 3 Wind Power Joint Stock Company, a member of TTVN Group, in collaboration with Kumagai Gumi Co., Ltd. from Japan. Kumagai Gumi is a leading Japanese construction conglomerate, pivotal in expanding and upgrading infrastructure in Japan and globally, including Vietnam.
The capital contributors to Dong Hai 3 Wind Power Joint Stock Company include: Kumagai Gumi Co., Ltd. (Japan) – 49%; Truong Thanh Vietnam Group Joint Stock Company – 15%; and Truong Thanh Energy Joint Stock Company, a subsidiary of TEGROUP – 36%.

Location of V1-2 Expansion and V3-3 Projects
Both projects utilize advanced, environmentally friendly wind turbine technology, ensuring top-tier technical quality and global applicability. They feature horizontal-axis wind turbines with three front-facing blades, supplied by a top-3 global manufacturer. The monopile foundation design withstands high turbine loads, ensuring long-term structural stability. Subsea cables efficiently transmit electricity from turbines to substations.
During construction, the projects will create approximately 800 jobs. Once operational, they will employ around 40 workers, contribute 325 million kWh annually to the national grid, meet the needs of 32,500 households, and generate an estimated annual revenue of over 406 billion VND. These initiatives position Vinh Long as a leader in renewable energy investment, fostering a regional energy hub in the Mekong Delta.

With support from local and central authorities, and leveraging TTVN Group’s successful track record in four renewable energy projects totaling 405 MW, including the V1-2 Wind Power Plant in Vinh Long, and the expertise of Japanese investors, there is confidence that the V1-2 Expansion and Dong Hai 3 Wind Power Projects will meet deadlines, operate efficiently, and sustainably contribute to Vinh Long’s socio-economic development and Vietnam’s broader growth. These projects also underscore the robust Vietnam-Japan partnership.
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