What are the differences between single-pole and double-pole photovoltaic brackets?

Structural Features

• Single-pole Photovoltaic Bracket: The single-pole bracket consists of a single pole as the main supporting structure, with cross beams used to connect and fix the photovoltaic panels to the pole. This structure is relatively simple, lightweight, and uses fewer materials, making it convenient and quick during installation and transportation.

• Double-pole Photovoltaic Bracket: The double-pole bracket uses two poles for support. The two poles are connected by cross beams, diagonal braces, and other components to form a more stable frame structure. Compared to the single-pole bracket, the double-pole structure has better stability and resistance to lateral forces, making it more capable of withstanding complex external forces.

Load-bearing Capacity

• Single-pole Photovoltaic Bracket: The load-bearing capacity of the single-pole structure is relatively limited, and it is mainly suitable for small-scale distributed photovoltaic systems or scenarios with low load-bearing requirements. During design, factors such as the weight and size of the photovoltaic panels, and the meteorological conditions of the installation site, need to be considered to determine the appropriate pole cross-section, material specifications, and foundation form to ensure that the load-bearing requirements are met.

• Double-pole Photovoltaic Bracket: Due to the load being shared by two poles, the double-pole photovoltaic bracket has a stronger load-bearing capacity. It can support larger-scale photovoltaic installations and withstand more severe meteorological conditions. In large ground-mounted photovoltaic power plants or projects with higher structural stability requirements, the double-pole bracket ensures the safe and reliable operation of the photovoltaic system.

Applicable Scenarios

• Single-pole Photovoltaic Bracket:

• Distributed Photovoltaic Power Generation: Widely used in residential homes, small commercial buildings, and other rooftop photovoltaic systems, where the scale of photovoltaic panels is relatively small. The single-pole bracket meets both load-bearing and installation requirements, while its simple structure also allows it to blend better with the building's appearance.

• Easy Installation Environments: For some temporary or simple photovoltaic power generation projects, such as prefabricated houses or simple carports, the ease of installation makes the single-pole bracket the preferred choice, allowing quick installation and use.

• Double-pole Photovoltaic Bracket:

• Large Ground-mounted Photovoltaic Power Plants: In centralized large ground-mounted photovoltaic power plants, where the number of photovoltaic panels is large and the scale is substantial, a higher level of structural stability and load-bearing capacity is required. The double-pole bracket can better meet the demands of such large-scale installations, ensuring the safety and reliability of the power plant during long-term operation.

• Complex Environmental Conditions: In areas with high wind loads, poor geological conditions, or frequent earthquakes, the strong stability and disaster resistance of the double-pole bracket can effectively withstand natural disasters, reducing the risk to the photovoltaic system.

Cost and Benefit

• Single-pole Photovoltaic Bracket: Due to its simple structure and lower material usage, the initial investment cost of the single-pole bracket is relatively low, making it advantageous in projects with strict cost control. However, its power generation efficiency may be slightly affected by the limitations of the structure, potentially resulting in lower energy output over the long term compared to the double-pole bracket.

• Double-pole Photovoltaic Bracket: The structure of the double-pole bracket is more complex, and the material usage and processing costs are higher, leading to a larger initial investment. However, it ensures better installation angles and stability for the photovoltaic panels, improving power generation efficiency. Over the long term, this results in more energy production and higher economic benefits. Therefore, when considering cost and benefit, the specific project conditions should be weighed.

Aesthetics

• Single-pole Photovoltaic Bracket: The single-pole bracket has a simple appearance with smooth lines, making it suitable for environments where architectural aesthetics are a priority, such as the rooftops of buildings in city centers. It blends well with the surroundings and does not appear overly bulky or intrusive.

• Double-pole Photovoltaic Bracket: The double-pole bracket has a more robust structure, giving a sense of stability and strength. In environments such as industrial factories or large public buildings, its appearance matches the architectural style, conveying a sense of grandeur and solidity.