11.98MW New Energy Vehicle Factory Roof Mounting System | Jiangxi, China

1. Project Overview

•Project Background: Located in Jiangxi Province, this project is a green energy supporting initiative developed on the rooftop of a modern automobile manufacturing plant owned by Hozon New Energy Automobile Co., Ltd. Through the integrated model of “PV + Automotive Manufacturing,” the project utilizes the factory’s rooftop resources to generate clean electricity that is directly consumed in the production of new energy vehicles, supporting the company’s commitment to low-carbon development across its entire industrial value chain.

•Project Requirements: The project involved the construction of a 11.98MW distributed photovoltaic power plant on approximately 100,000 square meters of color steel sheet roofing. The core requirement was to achieve rapid deployment while absolutely safeguarding structural integrity, roof waterproofing, and uninterrupted operation of the production lines below. The project was designed to realize the economic model of “self-consumption with surplus power fed into the grid.”

2. Project Challenges

2.1 Zero-Interference and Absolute Safety Requirements for Large Industrial Facilities

•Rooftop load-bearing capacity had to be precisely assessed. The newly installed PV system was required to meet the highest safety standards, while construction activities could not interfere with the highly automated automobile production lines operating below.
 

•With a total rooftop area of 100,000 square meters, the project demanded a mounting system with a high degree of standardization and versatility to simplify design, procurement, and installation processes, enabling large-scale, rapid replication while controlling overall project costs.
 

•The target schedule from project commencement to full-capacity grid connection was set at less than three months, placing significant pressure on design responsiveness, material supply assurance, and on-site installation efficiency across the entire project lifecycle.

•Dedicated 50 mm seamlok clamps were adopted, directly gripping the vertical seams of the metal roof without any drilling. This completely eliminated the risk of roof leakage and ensured full protection of the roof waterproof layer and the internal production environment.

•The system demonstrates excellent adaptability to various roof profiles, accommodating rooftop undulations and joints commonly found in large automotive manufacturing facilities, enabling safe and standardized installation.
 

•The main structure is manufactured from high-strength aluminum alloy, providing robust structural performance while achieving extreme lightweight characteristics. This significantly reduces additional loads on the existing roof structure, ensuring long-term system safety and stability.

•Structural calculations and simulations were conducted using professional engineering software, confirming full compliance with local wind and snow load requirements and delivering a high safety margin.
 

•A modular design combining seamlok clamps and H rails forms a stable mounting foundation. PV modules are quickly secured to the rails using mid-clamps and end-clamps, substantially reducing on-site adjustment and fastening work.

•All components were pre-configured and labeled prior to delivery. Combined with professional installation guidance, multiple work fronts were able to progress simultaneously, significantly accelerating on-site construction.

•The power plant is expected to generate approximately 12 million kWh of electricity annually, saving around 454 tons of standard coal per year and reducing CO₂ emissions by approximately 1,132 tons, while also significantly lowering emissions of sulfur oxides, nitrogen oxides, and other pollutants. The generated electricity is prioritized for on-site consumption, forming a closed-loop model of “green electricity manufacturing green vehicles.”
 

•Antaisolar’s lightweight mounting solution ensured long-term rooftop safety and zero disruption to factory operations. The project provides an efficient, safe, and highly replicable end-to-end solution for the development of rooftop PV systems on large industrial facilities.