A Sunova Solar launched the Tangra L HD bifacial module – which has composite frame. The has benefits such as greater corrosion resistance, PID reduction (Potential Induced Degradation) and lower weight.
The model, with power up to 620 W e efficiency of up to 22,9%, It is certified to withstand wind load (2400 Pa) and snow load (5400 Pa), as well as having 132 cells, 15-year product warranty, 30-year linear power warranty and 0,40% annual degradation.
"The Solar s with composite frames have been standing out in the market as an innovative alternative to traditional aluminum frames. With a structure that combines fiberglass, polyurethane, anti-UV coating and felt, these frames present technical and economic advantages”, he highlighted Victor Antoniolli, Sunova LATAM Technical Manager.
“A The mixture of these materials offers structural rigidity similar to aluminum., ensuring the integrity of the even in adverse conditions such as strong winds and snow loads. In addition, the The reduced weight of this type of frame contributes to ease of installation, which can result in time and cost savings during the assembly of photovoltaic systems,” he explained.
According to him, one of the main advantages of composite frames is precisely their high resistance to corrosion, especially in coastal regions, where salt spray is a major concern. Aluminum, despite being resistant and widely used, can suffer degradation in environments with high salinity, impacting the durability of the .
“The composite frame, with its anti-UV coating and stable chemical properties, is immune to this type of corrosion, which guarantees a long service life without the need for frequent replacement or maintenance,” he said.
Other advantages
Another advantage is the absence of galvanic corrosion. When different metals come into , so-called galvanic corrosion occurs, which can compromise the structure of the s.
According to Antoniolli, since composite frames are manufactured from non-metallic materials, this type of corrosion simply does not occur, eliminating yet another maintenance concern and increasing the reliability of the system.
“This difference translates into greater peace of mind for owners of solar systems, especially in regions with high levels of pollution or in industrial environments,” he highlighted.
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In addition to the structural and durability advantages, composite frame solar s also excel in mitigating the PID effect, a phenomenon that reduces the efficiency of photovoltaic modules over time. The PID effect occurs when there is a migration of ions in the module, caused by differences in electrical potential, which causes power losses.
“As the composite is a non-conductive material, it significantly reduces the formation of unwanted electric fields between the frame and the photovoltaic cells. This helps reduce the risk of PID degradation, preserving the efficiency and power generation capacity of the s throughout their useful life,” he pointed out.
Thus, the technician stated that modules with a composite frame not only present mechanical and chemical advantages, but also guarantee more stable and long-lasting electrical performance compared to conventional aluminum frames.
The expert also emphasized that composite frames do not require grounding, unlike aluminum frames. “In photovoltaic installations, the requirement for grounding aluminum frames increases the complexity and costs of the project, as it is necessary to ensure that the entire system is properly connected to the lightning protection system.”
“With composite frames, this requirement is eliminated, simplifying the design and reducing installation costs, in addition to offering greater safety. Therefore, for projects in challenging environments, the use of composite frames can be a superior solution, combining durability, safety and economy”, he concluded.
Hybrid cell generates electricity and stores thermal energy
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