At present, the main materials of solar panel racking system are Aluminum Alloy (AL6005-T5 surface anodized), Stainless Steel (SUS304), Galvanized Carbon Steel (Q235 hot-dip galvanized).
Among them, stainless steel is the best, which has the advantages of high strength, corrosion resistance, and high recycling value. But correspondingly, the cost of stainless steel is the highest among the three materials.
The appropriate choice is aluminum alloy. Aluminum alloy racking system for solar is widely used in the solar roof racking and solar ground mount structures, it has the characteristics of corrosion resistance, light weight, beautiful and durable. It is worth mentioning that aluminum alloy solar panel mounting brackets basically does not need maintain in the later stage, and it has high recovery value, with relatively small installation cost to achieve the maximum use effect.
The last is galvanized steel solar panel mounting, which has the advantages of the low cost, stable performance and high bearing capacity. However, the later maintenance cost is very high. Because the anti-corrosion performance of the steel PV mount system is not high, when the zinc layer on the surface of the steel support falls off, it will be corroded quickly and become very fragile. Therefore, the protection of the zinc layer on the surface of the hot-dip galvanized steel solar structure is the most important thing in the later maintenance. Moreover, the recovery value of carbon steel bracket is the lowest of the three materials.
There are long and short cost recovery periods for photovoltaic projects. Generally speaking, the cost can be recovered within 5-7 years. However, the average life expectancy of most solar panel racking system falls between 25 and 30 years. The remaining life of photovoltaic system determines the profit. Therefore, it is very important to choose a suitable mounting bracket. You must take the maintenance cost and recovery value into consideration.
Corigy focuses on the design and manufacture of solar panel support, and will design the most suitable solar mounting solutions for customers by comprehensively considering the factors such as land, climate and environmental conditions of the installation site, and choosing the materials suitable andeconomical.