
Rang Dong Expands Rooftop Solar Power Use To Cut Energy Costs
Rang Dong, fully known as Rang Dong Light Source and Vacuum Flask Joint Stock Company, completed and commissioned the 230-kWp high-efficiency rooftop solar system for its factory in Khuong Dinh Ward in July 2026. The project was customized to meet the facility's actual power demand, ensuring peak generation performance, structural durability and stable long-term operation.
Having completed the rooftop solar power system, Rang Dong has reinforced its position as a reliable engineering, procurement and construction partner capable of delivering turnkey green energy infrastructure to the industrial sector.
The installation of solar power systems on commercial rooftops allows manufacturers to directly control their operational energy supply. As national electricity tariffs fluctuate and global supply chain mandates demand lower carbon outputs, integrating clean energy hardware provides immediate financial and operational stability.
Rang Dong’s project completion also serves as a concrete model for how Vietnamese enterprises can modernize their energy consumption and transition smoothly toward sustainable manufacturing models.

The newly installed 230 kWp solar energy system is engineered to generate approximately 290,000 kWh of clean electricity annually. By producing its own power directly on-site, the factory expects to save around 850 million VND per year in utility costs, resulting in a rapid capital payback period estimated at just three years.
These financial metrics demonstrate that investing in rooftop solar installations offers an exceptional return on investment while shielding businesses from long-term utility price spikes.
Beyond immediate utility savings, generating clean power directly on factory roofs significantly lowers the facility's overall carbon footprint. This substantial reduction in carbon emissions enables Rang Dong’s factory to meet strict Environmental, Social, and Governance criteria mandated by international trade partners.
By producing verified green output, the factory improves its market competitiveness and prepares itself to enter premium global supply chains that enforce tight sustainability regulations.
Comprehensive turnkey engineering services
In order to ensure smooth project delivery, Rang Dong has implemented the Hanoi project as a comprehensive turnkey service package.
Corporate engineering teams managed every phase of the project, including initial site surveys, customized system engineering, equipment procurement, physical installation, grid testing, final commissioning and long-term warranty support.
Providing an end-to-end solution eliminates technical integration risks for property owners and guarantees that all physical components perform reliably under local weather conditions.
Using locally manufactured, high-precision equipment alongside strict construction management standards ensures that the rooftop solar system complies with national safety and electrical regulations.
Field engineering teams inspect every installation to guarantee that physical loads on the factory roof are properly balanced and electrical systems operate at maximum efficiency. This rigorous execution methodology protects the long-term structural integrity of the factory building while optimizing energy conversion rates.

The successful commissioning of the 230-kWp factory system marks another step forward in Rang Dong’s strategy to build a decentralized, carbon-neutral energy network across key economic zones.
As industrial demand for green energy rapidly expands in northern Vietnam, providing accessible, certified and cost-effective solar technology is essential to supporting regional economic development.
Looking ahead, Rang Dong will further expand its turnkey clean energy offerings for industrial zones, commercial complexes and modern agricultural setups across the nation.
By combining advanced hardware manufacturing with real-time digital monitoring platforms, the company ensures that every project delivers long-term operational excellence. Each completed solar project stands as a practical contribution to national sustainability, guiding the country’s industrial sector toward energy self-reliance and shared economic prosperity.
Should you have any questions or request a quotation of Rang Dong products, please send an email to: export@rangdong.com.vn.
Websites: en.rangdong.com.vn and vacuumflask.rangdong.com.vn.









