Why is Longtop BIPV the optimal solution for the renovation of arched coal sheds?

The global energy structure is undergoing rapid transformation, and the green upgrading of traditional industrial scenarios has become a necessary path to achieving the "dual carbon" goals. As a core facility for coal storage and transportation, the renovation of arched coal sheds has long faced bottlenecks due to complex structures, harsh environments, and difficult maintenance. Longi Green Energy, leveraging over two decades of technical accumulation in the field of building metal enclosures and innovative breakthroughs in the BIPV field, uses the Longtop BIPV solution to overcome industry pain points, opening up a safer, more efficient, and sustainable zero-carbon transformation path for large coal enterprises.

▲Longi Green Energy BIPV-Curved Coal Shed Roof Photovoltaic Case

Why is Longtop BIPV the optimal solution for the renovation of arched coal sheds? This requires a comparative analysis from the core dimensions of safety performance, operation and maintenance, cost, and power generation performance:

Longtop BIPV vs. Flexible Components

1. Advantages in Safety Performance

Fire Performance: Longtop BIPV components have passed the Class A fire test, and the entire structure uses non-combustible materials, fundamentally eliminating fire hazards. Flexible components, however, generate and conduct electricity on the front surface simultaneously. Their flame-retardant material performance is insufficient, and the heat dissipation conditions on the building surface are poor, easily leading to fires due to electrical faults.

Front Load-Bearing Capacity and Impact Resistance The front load-bearing capacity of Longtop BIPV components is 8.1 KPa, and the impact load resistance is 5.4 KPa, demonstrating strong structural safety. The composite materials or polymers of flexible components have weaker front load-bearing capacity and impact resistance, and may be more easily damaged in the face of hail and other severe weather.

▲Longtop BIPV passes Class A fire test

▲Flexible components have fire hazards

▲Longtop BIPV passes Class A fire test

2. Advantages in Operation and Maintenance

Dust Cleaning: Longtop BIPV components have two layers of 2.0mm tempered glass, with high surface hardness and resistance to damage. They are suitable for cleaning with automatic cleaning equipment, resulting in low maintenance costs. Flexible components have poor surface hardness, are easily scratched, and dust is easily adsorbed in the microscopic pores on the material surface, making them difficult to clean.

Repair and Replacement: Longtop BIPV components provide good front load-bearing capacity, allowing for direct personnel access during installation and removal, facilitating repair and replacement without causing component damage. With flexible components, due to material characteristics, damage to the internal battery cells is more likely during installation and removal.

 

▲All-area maintenance passage

▲Roof cleaning robot

3. Cost Advantages

Flexible components have high production costs, with a total cost of approximately RMB 1.5/W, while Longtop has a lower overall life-cycle cost.

4. Power Generation Advantages

Assuming the same light irradiance, photovoltaic power plant capacity, and system efficiency, considering component degradation, Longtop BIPV components generate more power than flexible components. Longtop BIPV uses high-efficiency HPBC photovoltaic components, with a first-year degradation of 1% and subsequent annual degradation of 0.35%, while flexible components have a first-year degradation of approximately 2.5% and subsequent annual degradation of 0.5%, making Longtop BIPV power generation more stable.

In summary, Longtop BIPV significantly outperforms flexible components in terms of safety performance, operation and maintenance, cost, and power generation performance, making it the optimal solution for the green renovation of arched coal sheds.

Slope-following Installation + Special Curved Roof Photovoltaic Adaptation Technology

Longi Green Energy pioneered the "slope-following installation" solution and cleverly uses the "safety platform" and "special curved roof photovoltaic adaptation technology." Through a balance of rigid protection and flexible adaptation, it retains the flexibility of curved surface installation while ensuring system safety. Combined with new drone hoisting, it breaks through traditional construction limitations and achieves efficient and precise installation on complex curved surfaces.

▲Existing coal shed construction method

▲New coal shed construction method

▲New drone hoisting

Standard Leading, Industrial Coal Sheds Revitalized with Zero Carbon

Under the background of the "dual carbon" strategy, Longi Green Energy leads industry transformation through technological standards—the "Technical Specification for Metal Structure Curved Roof Crystalline Silicon Component BIPV" which it spearheaded, fills the gap in domestic standards for curved photovoltaic applications, promoting the green revitalization of numerous industrial coal sheds. Today, more and more arched coal sheds are shedding their "gray coats," using Longi Green Energy BIPV to paint a future picture of industrial buildings with "integrated production and storage, and zero-carbon symbiosis"!