Since INMETRO launched the Ordinance No. 140, it became mandatory for solar module brands to deliver at least the nominal power specified in the datasheet. This regulation brought an end to “fake power“, where modules performed worse than promised.
But is simply ensuring the nominal power enough to choose the best photovoltaic module for your project?
In this article we will justify the importance of electroluminescence in choosing solar modules and how this technique is crucial to go beyond a basic test.
DMEGC Solar believes that the real difference lies in the cells that make up the module and electroluminescence plays a crucial role in exposing this Quality .
This advanced technique uses infrared images to identify hidden defects in cells, such as microcracks or inactive areas, that would go unnoticed in a traditional flash test, providing a more detailed and reliable analysis of the module's integrity.
The importance of electroluminescence in the choice of solar modules lies in revealing the uniformity and integrity of photovoltaic cells.
At DMEGC, the superiority of the cells is clear in the electroluminescence images. The brand's modules feature clear and consistent colors, indicating excellence in the manufacturing process and reliability in performance throughout the module's lifespan.
This uniformity is crucial to ensure system efficiency and avoid serious problems, such as mismatch and hot spots, which can compromise energy generation and cause premature failures.
When compared to low-quality modules, the difference is clear: electroluminescence images of inferior modules show cells with darker and uneven coloration. This is a direct sign of lower cell quality, often caused by imperfections in the manufacturing process.
These failures increase the risk of problems during the operation of the photovoltaic system, affecting the performance and durability of the modules.
Electroluminescence not only identifies microcracks, but also reveals the intrinsic quality of the cells used in the module assembly.
With this technology, we ensure that DMEGC modules are not only efficient but also reliable, minimizing risks for customers.
Electroluminescence is a non-destructive and essential technique for detecting hidden defects that could go unnoticed in other tests.
Among the main problems that may arise, the following stand out:
- Reduced efficiency: Mismatch between cells can limit power generation, as module performance is defined by the weakest cell;
- Hot spots: Performance differences between cells can result in localized heating, causing module damage and even irreversible failure;
- Power loss: Modules with cells of unequal efficiency can suffer significant losses in energy production;
- Long-term damage: Electrical stress generated by microcracks accelerates module degradation, reducing its lifespan and reliability.
Therefore, DMEGC Solar adopts a rigorous electroluminescence verification process, with high-definition images, to ensure greater reliability and durability of the modules.
This attention to detail positions DMEGC as a superior choice in the solar energy market.
Remember: when choosing a photovoltaic module, go beyond the power test. Electroluminescence is essential when choosing solar modules, ensuring that you are investing in quality and longevity.
The opinions and information expressed are the sole responsibility of the author and do not necessarily represent the official position of the author. Canal Solar.
