Selection Key Points of Solar PV Mounting Structures

Selection Key Points of Solar PV Mounting Structures

The different design methods of solar photovoltaic mounting structures can make full use of local solar energy resources, so we can achieve the maximum power generation efficiency of solar modules. Moreover, different materials, assembly methods, installation angles, wind load and snow load of solar photovoltaic scaffolds can improve the stability and service life of solar scaffolds. Then, how to choose the right solar PV bracket?

At present, the common material of solar PV brackets in the market is steel and aluminum alloy. The aluminum alloy of the passivation zone is in the atmospheric environment. A layer of dense oxide film forms on the surface. It hinders the surface of the active aluminum matrix and the surrounding atmosphere contact. It has very good corrosion resistance. The corrosion rate decreases with the extension of time. Steel under ordinary conditions (C1-C4 environment), 80μm galvanized thickness can ensure the use of more than 20 years, but in high humidity industrial areas or high salinity coastal and even temperate seawater corrosion speed, the galvanized amount needs 100μm. The need for annual regular maintenance. It can be concluded that aluminum alloy is far superior to steel in the corrosion resistance of solar mounting structures for solar PV systems including floating solar PV solutions.

The solar photovoltaic bracket

There are many kinds of surface treatment methods for aluminum alloy profile photovoltaic brackets, such as anodic oxidation, chemical polishing, fluorocarbon spraying, electrophoretic paint, etc. They have a beautiful appearance and strong adaptability. The steel is generally hot dip galvanized, surface sprayed, paint coated and other methods. The appearance is poor in aluminum alloy profiles. Therefore, it is also better for aluminum alloy PV brackets from the appearance. The general processing methods of aluminum alloy profile photovoltaic mounting structures are extrusion, casting, bending, stamping and so on. Extrusion production is the mainstream production mode. Through the way of the extrusion die, it can achieve the production of arbitrary section profiles, and the production speed is relatively fast.

Steel photovoltaic mounting structures are generally rolled, cast, bent, stamped and other ways. At present, rolling is the mainstream production mode of cold-formed steel. The section needs to be adjusted by the rolling wheel group, but the general machine can only produce similar products after shaping and size adjustment. The section shape can not be changed, such as C steel, Z steel and other sections. Roll production mode is relatively fixed, and the production speed is faster.

Topper solar PV mounting structures

Comparison of comprehensive performances

1) The aluminum alloy profile is light in weight. It has a beautiful appearance and excellent corrosion resistance. It is generally used for bearing requirements of the roof power station, a strong corrosion environment. For example, color steel plate systems, and chemical plant power stations will have a better effect by using solar PV aluminum alloy brackets.

2) Steel with high strength and small deflection deformation under load is generally used in power stations under ordinary circumstances or for parts with large forces.

3) Cost: In general, the basic wind pressure is 0.6kN/m2, and the span is below 2m. The cost of an aluminum alloy mounting structure is 1.3-1.5 times that of a steel structure mounting structure. In the small span system, (such as color steel plate roof) cost difference between aluminum alloy brackets and steel structure brackets is relatively small. In terms of weight, aluminum alloy is much lighter than steel brackets, so it is very suitable for the roof power station.

Through the above analysis, we can know that the current comprehensive performance is more popular in the market. It is the aluminum alloy profile photovoltaic bracket.

Topper Floating Solar PV Mounting Manufacturer Co., Ltd was established in 2003. We concentrate on reliable floating solar mounting systems for floating solar PV power plants.

Located in Xiamen, Fujian province, China Topper Solar PV company covers an area of 12,000 square meters with R & D departments. It has mould workshops, product manufacturing workshops, quality control workshops and floating PV power experiment stations. In addition, Topper has built sound technical cooperative relationships with worldwide manufacturers and R & D organizations.

Certificated by ISO 9001:2015, Topper Solar PV has established comprehensive scientific systems of research and development as well as quality control. Moreover, we also exported our products to over 60 countries and regions. We earn a good reputation with customers all over the world. We are always committed to offering high-quality floating solar PV mountings at the most competitive prices. It is the best performance for our customers.