Construction has officially begun on the 450-megawatt Dau Tieng 5 solar power plant in Tay Ninh province, southern Vietnam, developer DT5.1 Energy JSC confirmed on August 4, 2026. The project, valued at nearly 7.77 trillion VND (approximately US$296 million), is now the largest solar facility by installed capacity in the province and is slated to enter commercial operation in December 2027.
Key Facts At A Glance
- Project: Dau Tieng 5 solar power plant
- Capacity: 450 megawatts
- Location: Duong Minh Chau commune, Tay Ninh province, Vietnam
- Total investment: approximately 7.77 trillion VND (nearly US$296 million)
- Developer: DT5.1 Energy JSC, a subsidiary of Xuan Cau Holdings
- Site area: approximately 645 hectares of semi-submerged land around Dau Tieng Reservoir
- Groundbreaking date: August 4, 2026
- Targeted commercial operation date: December 2027
Construction officially started on August 4 on the 450 MW Dau Tieng 5 solar power plant in Duong Minh Chau commune, Tay Ninh province, marking what state media described as a major step in Vietnam’s clean energy transition (en.vietnamplus.vn). The facility is being developed by DT5.1 Energy JSC, a subsidiary of Xuan Cau Holdings, at a total investment of nearly 7.77 trillion VND, or roughly US$296 million (en.vietnamplus.vn).
Project Scope And Site
The plant will occupy about 645 hectares of semi-submerged land surrounding the Dau Tieng Reservoir, one of the largest man-made reservoirs in Southeast Asia (en.vietnamplus.vn). Planned infrastructure includes photovoltaic panels, distributed inverters, a transformer station, transmission lines, and grid connection facilities (en.vietnamplus.vn). With its 450 MW capacity, Dau Tieng 5 becomes the largest solar power plant by installed capacity currently sited in Tay Ninh province (en.vietnamplus.vn).
Timeline And Stated Objectives
Commercial operation is scheduled to begin in December 2027 (en.vietnamplus.vn). Vietnamese state media framed the project as intended to help strengthen national energy security while supporting the country’s transition toward a greener and more sustainable energy system (en.vietnamplus.vn).
Limited Independent Reporting
As of publication, coverage of this groundbreaking traces to a single wire report from the Vietnam News Agency. No additional financial, engineering, or regulatory details, including the power purchase agreement structure, grid interconnection timeline, or environmental permitting status, have yet been independently confirmed through secondary sources. Publicly available details beyond the figures above remain limited.