Vietnam Largest Rooftop Solar project has reached commercial operation after the completion of a nearly 28 MWp rooftop photovoltaic installation at Samsung Electronics HCMC CE Complex in Ho Chi Minh City. The project, valued at an estimated $20 million, marks the country’s largest rooftop solar Power Purchase Agreement (PPA) development and the first delivered under Vietnam’s Decree 57 Direct Power Purchase Agreement framework through a private-wire arrangement. The milestone also demonstrates how industrial construction continues supporting Vietnam’s clean energy transition while strengthening sustainable manufacturing infrastructure.
The completed development spans factory rooftops across Samsung Electronics’ manufacturing complex, where engineers installed almost 45,000 solar photovoltaic modules. The system now produces more than 40,000 MWh of renewable electricity annually. Consequently, it supplies around 26% of the facility’s yearly electricity demand while reducing reliance on conventional grid power.
Unlike conventional utility-scale solar farms, the project maximizes existing industrial roof space without requiring additional land acquisition. Therefore, it provides a practical model for large manufacturers seeking to decarbonize operations while preserving valuable land resources.
Vietnam Largest Rooftop Solar project demonstrates advanced industrial construction
Construction teams completed the installation under a long-term engineering and energy services agreement. TotalEnergies ENEOS financed, designed, installed, and now operates the facility through a 20-year Power Purchase Agreement.
Moreover, engineers coordinated construction activities without disrupting manufacturing operations. Careful scheduling allowed production lines to continue while installation crews mounted solar modules across multiple factory buildings.
The project also showcases the growing importance of rooftop solar engineering within Southeast Asia’s industrial sector. Developers increasingly favour rooftop installations because they reduce transmission losses and improve onsite energy security.
Furthermore, Vietnam’s Decree 57 created a regulatory pathway for private-wire renewable energy projects. This framework now enables industrial companies to procure clean electricity directly through long-term commercial agreements.
Samsung Electronics selected the rooftop solar model to support its global RE100 commitment. The Ho Chi Minh City complex ranks among the company’s largest manufacturing facilities worldwide, making the project strategically important for its renewable energy targets.
Vietnam Largest Rooftop Solar accelerates clean energy infrastructure
The completed project provides important lessons for Vietnam’s expanding renewable energy market. First, it proves that large industrial rooftops can host utility-scale generation capacity. Second, it demonstrates how private investment can accelerate clean energy deployment without significant public funding.
Additionally, the installation strengthens energy resilience for Samsung Electronics by supplying predictable renewable electricity over two decades. This approach also helps manufacturers manage long-term electricity costs while reducing carbon emissions.
Environmental benefits remain substantial throughout the contract period. The installation will prevent more than 500,000 tonnes of carbon dioxide emissions over its operational lifetime. Annual renewable generation also reduces dependence on fossil fuel-based electricity.
The commissioning ceremony attracted representatives from Vietnamese authorities, industry partners, and Samsung Electronics. Their participation highlighted increasing collaboration between government, developers, and manufacturers to expand renewable infrastructure across Vietnam.
Looking ahead, similar rooftop developments could accelerate under Vietnam’s evolving renewable energy policies. As industrial electricity demand continues rising, distributed solar construction offers manufacturers a practical pathway toward lower emissions and greater energy independence. Consequently, the successful completion of this project strengthens confidence in Vietnam’s commercial and industrial solar market while establishing a benchmark for future rooftop PPA developments.
The project also reflects Vietnam’s broader expansion of solar infrastructure across both industrial and utility-scale developments. Earlier, the country completed the 45MW Solar Power Project, which strengthened renewable electricity generation through a utility-scale installation. Together, the two developments demonstrate how Vietnam is diversifying its clean energy portfolio by combining large ground-mounted solar farms with commercial and industrial rooftop systems.
Project fact sheet
Project: Vietnam’s Largest Rooftop Solar Power Purchase Agreement Project
Location: Samsung Electronics HCMC CE Complex, Ho Chi Minh City, Vietnam
Estimated project value: Approximately $20 million
Project type: Industrial rooftop solar photovoltaic development
Installed capacity: Nearly 28 MWp
Solar panels installed: Approximately 45,000
Annual electricity generation: More than 40,000 MWh
Electricity supplied: Around 26% of Samsung Electronics’ annual site demand
Contract model: 20-year Power Purchase Agreement
Delivery framework: Vietnam Decree 57 Direct Power Purchase Agreement
Connection type: Private-wire arrangement
Construction status: Completed and commissioned
Operational status: Commercial operation
Expected carbon reduction: More than 500,000 tonnes of CO₂ during the contract period
Primary objective: Renewable electricity supply for industrial manufacturing
Project team
Project owner: Samsung Electronics HCMC CE Complex (SEHC)
Renewable energy developer: TotalEnergies ENEOS
Project financier: TotalEnergies ENEOS
Engineering services: TotalEnergies ENEOS
Procurement: TotalEnergies ENEOS
Construction contractor: TotalEnergies ENEOS
Operations and maintenance: TotalEnergies ENEOS
Electricity off-taker: Samsung Electronics HCMC CE Complex
Regulatory authority: Government of Vietnam under Decree 57 DPPA framework
Local stakeholders: Ho Chi Minh City authorities
Technology: Rooftop photovoltaic solar system
Commercial framework: 20-year private-wire Power Purchase Agreement
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