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Victron Energy 12V 55W monocrystalline solar panel
- Manufacturer: Victron Energy
- Maximum Power (Pmax): 55 W
- Module technology: Monocrystalline
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Photovoltaic modules
CategoryPhotovoltaic modules
Maximum Power (Pmax) [W]55
Maximum Power (Pmax) [W]55
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Diversity among Photovoltaic Modules
When constructing a photovoltaic system that's expected to perform efficiently and reliably for many years, it's crucial to invest in components sourced from reputable and well-established manufacturers. At the merXu platform, you can find top renewable energy sources like photovoltaic panels from leading brands such as JaSolar, Jinko , Trina, Longi, Canadian Solar, and others. There are numerous variations of photovoltaic modules (panels) in the market, but certainly, more aspects unite them than divide them. While the construction gives some details about the module, it's not the most important factor. The PVEL Institute (an independent laboratory that tests photovoltaic modules) repeatedly emphasizes that the use of appropriate materials and quality control in the factory is more crucial than the applied solutions. PVEL annually discloses part of its results in public reports. So, an intelligent choice would be to invest in photovoltaic panels from a reliable, honest manufacturer with an active branch in our region. Pay attention to the brand's reputation, the Altman Z-Score, Tier-1 status, and business size.
Which panels to select? Small or large?
The roof space suitable for photovoltaic installation may be restricted by obstructions like a chimney or shade-throwing trees. Thus, properly planning the roof installation is integral to optimizing the efficiency of the photovoltaic system. Smaller modules can be more conveniently distributed across the roof to maximize power output, but this isn't always the rule. There are instances where using bigger modules could be more advantageous. Cells in larger modules can be slightly more susceptible to micro-cracks as their frame does not offer as much protection, though the difference isn't substantial. Rather than focusing solely on module power, it's beneficial to consider their efficiency, expressed in percentage.
What distinguishes the power [Wp] and efficiency [%] of a photovoltaic panel?
The power of the panel dictates how much current that particular panel will produce (in test conditions), but it's the efficiency of the panel that determines to what extent it converts solar radiation into electrical energy. Power depends on the size of the panel, whereas efficiency does not. It's necessary to distinguish between these two concepts in order to effectively compare different panels.
Half-cut Modules
REC, a pioneer in the industry, revolutionized the sector by devising a method of splitting cells into two separate blocks. This innovation leads to the reduction of internal resistance, enhancing its temperature durability. The solution now propels nearly the entire photovoltaics industry. As half-cut cells have the distinct advantage of delivering more power per square meter, without significantly increasing the cost, they have taken the market of roof installations.
IBC Panels
IBC (interdigitated back contact /all back-contact) technology modules feature collector bars on the bottom of the cell. This design results in higher efficiency and also strengthens the cell from the bottom, making it less susceptible to micro-cracks. Leading the collector bars from the bottom necessitates the use of unique 'N-Type' silicon cells, which are more expensive than the commonly used ‘P-Type’ silicon cells.
Which is better? - 'Glass-Glass' or 'Glass-Foil' photovoltaic panels?
'Glass-Glass' or double glass photovoltaic panels are gaining increasing popularity, with glazing not just on the front, but also on the back. The primary benefit is the extended warranty offered. Glass, being resistant to chemical factors more than foil, makes these glass-glass panels more resilient to weather-related degradation. Additionally, such panels are impervious to micro-cracks in the cells, just like IBC modules.
What about bifacial photovoltaic panels?
Bifacial photovoltaic modules are typically glass-to-glass with cells featuring two active layers. Standard panels generate current when illuminated from one side, whereas bifacial panels do so from both sides. With the correct installation, the bottom of the panel can increase the energy yield by a few to several percent. Needless to say, it wouldn't make sense to install this kind of panel on a roof.
HIT / HJT Photovoltaic Modules
HIT or HJT cells are conventional monocrystalline cells (made from crystalline silicon) coated on both sides with thin layers of amorphous silicon. The crystalline silicon gives high efficiency, while the amorphous silicon delivers temperature resilience. This combination of three-component (layered) cells might incur a higher cost, but the results are very effective.
Discover top brands of photovoltaic modules on merXu!
Risen Jolywood Q Cells JaSolar DAH Solar Canadian Solar Trina JinkoSolar Longi
