Hot spots and microcracks are among the main factors that compromise the performance and lifespan of photovoltaic plants. Although often associated with the operational phase, these problems can originate during installation, impacting system efficiency and costs throughout the entire lifecycle of the projects.
According to ARaymond's assessment, choices made during the structural assembly phase directly influence both the initial investment and future operating costs.
Traditional fastening methods, based on the use of clamps and screws, can contribute to the occurrence of these defects when not performed with the necessary technical precision.
This model, the company points out, requires a longer installation time, involves a large number of components, and demands specialized labor.
"Less installation time, reduced maintenance needs, and greater durability mean more efficiency and profitability throughout the plant's lifecycle," the company stated.
In addition to increasing maintenance costs and putting pressure on the OPEX (Operational Expenditure) of the plants, the need for strict torque control throughout operation also increases the risk of structural damage to the modules even during the installation phase.
The company believes that excessive torque and manipulation of the upper part of the panels can cause microcracks that, over time, develop into hot spots, compromising the energy efficiency of the modules and increasing the likelihood of failures, replacements, and unscheduled downtime.
Regarding the influence of the fastening at the top of the modules, Laís AndradeAn engineer from CS Consultoria explains that some types of staples, especially taller ones or those installed at the front, can cause shading at certain times of day.
According to her, the variation in the sun's position favors the formation of hot spots when the light hits at lower angles.
She emphasizes that when using bottom-mounted fastening solutions, this problem no longer occurs.
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Clip extending beyond the frame limit and causing partial shading in the cell. Photo: Canal Solar.
"Adopting fastening systems from the bottom of the module or using more compact clamps next to the frame can prevent this type of problem in both ground-mounted plants with fixed structures and rooftop plants," he added.
In addition to securing the modules, the company highlights the importance of cable management as a critical element for the reliability of the power plants.
Failures at this stage are among the main causes of unscheduled downtime, directly affecting the availability and operating costs of systems.
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Photo: ARaymond/Disclosure
In this context, ARaymond developed metal cable management systems focused on the protection and organization of conductors.
The company explains that the devices are easy to install, require no complex tools, and are highly durable, reducing the need for corrective interventions over time.
"By integrating smart solutions such as fastening clips and metal cable managers, ARaymond offers a complete approach to reducing CAPEX and OPEX in photovoltaic projects," the company concluded.
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