Rooftop Solar Gains Momentum Among Businesses in Vietnam’s Dong Thap Province

Businesses in Dong Thap Province, Vietnam, are increasingly investing in rooftop solar and solar-powered equipment to reduce electricity costs, improve energy efficiency and meet the growing demand for greener production.

One example is P&K Development’s Dong Thap branch, which invested in a solar drying system in 2021. Previously, drying medicinal herbs took six to seven days using conventional electric fans. The solar-powered system has reduced the process to just 12 hours while improving temperature and humidity control. Each drying cycle saves more than 200 kWh of electricity.

Other companies are using rooftop solar to meet part of their factory electricity demand. Cai Lay Veterinary Medicine Factory, for example, has installed a 173.6 kW rooftop solar system consisting of 280 panels. Covering more than 1,400 square meters, the system is expected to generate around 582.89 MWh annually and supply approximately 65% of the factory’s electricity needs.

Meanwhile, Mavin Austfeed’s Dong Thap factory is building its own solar system, scheduled to begin operation in November 2026. The project is expected to reduce energy-related costs by 25%–30%.

According to Dong Thap Power Company, as of September 2026, the province had 6,150 rooftop solar customers with total installed capacity exceeding 287 MW. Rooftop solar systems exported more than 200 million kWh of electricity to the grid during the first nine months of 2026.

The growing adoption of solar energy highlights how distributed generation is helping local manufacturers reduce operating costs, improve energy independence and support greener industrial production.