According to relevant statistics, in a large-scale solar power station project, the construction and installation cost accounts for about 21% of the total investment of the photovoltaic project, while the investment of the solar mounting systems only accounts for about 3% of the total cost. Therefore, relative to the high investment of other parts of the solar power station, the fluctuation of the cost of the solar mounting systems is not a sensitive factor. The cost of choosing a high-end solar mounting systems is only increased by less than 1%. However, if the selected solar panel mounting brackets is not suitable, the maintenance cost in the later period will be greatly increased. The overall consideration is not cost-effective. In the long term, improving the performance and quality of the solar panel mounting brackets can make the system operate safely and reliably for 25 years. This is very necessary and correct to ensure the maximization of investment benefits. Solar panel mounting structure is not without technical content, blindly pursuing low prices, in fact, is an unwise way to reduce the revenue of power stations.

The steel used in a high quality steel ground solar structure should have the following properties

1. Tensile strength and yield point. The high yield point can reduce the cross-section of steel components, reduce the weight of the structure and save steel, thus reduce the overall project cost. The high tensile strength can increase the overall safety of the structure and improve the reliability of the structure.

2. Plasticity, toughness and fatigue resistance. The better plasticity can cause a larger deformation of the structure before failure, so that people can find out and take remedial measures in time. Better toughness can make the solar mounting brackets absorb more energy when it is destroyed under external impact load. Especially for power station in desert and rooftop where wind speed is high and the wind vibration effect is obvious, the toughness of steel can effectively reduce the degree of danger. Better fatigue resistance can also make the structure have a strong ability to resist alternating and repeated wind loads.
3. Processing performance. Good processing properties include cold work-ability, hot work-ability and weld-ability. The steel used in solar mounting brackets not only needs to be easily processed, but also requires that these structures and components do not cause excessive adverse effects of strength, plasticity, toughness and fatigue resistance due to processing.
4. Service life. Since the design service life of solar mounting brackets is more than 20 years, good corrosion resistance is also an important indicator to measure the quality of the solar PV mounting structure. If the solar PV mounting structure life is short, it will inevitably affect the stability of the entire system, leading to a prolonged payback period and reducing the economic benefits of the entire project.

Corigy provides high quality steel material with different surface treatment to ensure the customers can get the most benefits.