What Is Solar Mounting Structure?

Mar. 20, 2021

Mounting structures are the backbone of solar power plants, as they provide support for the modules. These support structures lift the solar panels at the right angle to ensure that they receive the maximum amount of solar radiation. Without these, the solar panels will not be able to capture the amount of solar radiation required to achieve optimum solar power generation. The correct alignment and placement of the mounting structure are one of the key indicators of the competence of the engineering, procurement and construction (EPC) contractor. Despite this, mounting structures have not received as much attention as modules or inverters. In fact, many EPC contractors continue to deploy substandard mounting structures that cannot withstand harsh environmental conditions.

Solar PV brackets are special brackets designed for the placement, installation and fixing of solar panels in solar PV power systems. They are generally available in aluminium, carbon steel and stainless steel.

The solar roof mounting system is made of carbon steel and stainless steel, the carbon steel surface is hot-dip galvanised and will not rust for 30 years of outdoor use. Features: no welding, no drilling, 100% adjustable, 100% reusable.

Types of materials

Good mounting structures can withstand not only the weight of solar modules but also extreme weather conditions such as storms and flooding. Materials ranging from wood to polymers have been used to create robust and durable solar panel mounting structures. In most cases, stainless steel has been a popular choice. Traditionally, stainless steel has been the most cost-effective option given the location and lifecycle of the plant. However, recent trends have shown an increased utilisation of aluminium and steel in a hot-dip galvanised state to better prevent rusting.

 Solar Roof Mounting System

Firstly, depending on the tilt of the solar panel, there are two mounting configurations. Fixed tilt structures are installed at a fixed angle in relation to the latitude of the site, facing south in the northern hemisphere. Seasonal tilt structures can be adjusted to the season to allow the panels to capture the best possible sunlight. While most solar power plants have fixed or seasonal tilt structures, many installations also use a tracker solution to change the orientation of the solar panels to optimum energy depending on the season and time of day. However, the high upfront costs associated with trackers limit their use to some extent. Technological innovations in the mounting structure space have focused on changing structures to optimise costs. For example, mounting structures with rails provide durability and support for the modules, while trackless mounting structures can reduce installation costs to a certain extent due to lower labour requirements.

Design considerations

Depending on the location, application, topography and environmental factors of the project, the design of the mounting structure will vary from one solar power plant to another. Therefore, different mounting configurations are used for ground-mounted, roof-mounted, canal-mounted and floating solar power plants. Even in ground-mounted plants, the design of the mounting structure will vary depending on land technology, soil type and other weather-related parameters. The complexity of rooftop solar power plants increases because the roof can be flat, sloping or corrugated and made of concrete structures or metal sheds. 

The above information is provided by the solar mounting system manufacturer.


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