Technology - LUXEN SOLAR

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Half-Cut Cell + Twin Panel Technology

Half-cut cell + twin panel technology consists in cutting the solar cell in half by non-destructive cutting infrared laser and splits the conventional layout of 3 cell-strings in 1 electric circuit into the innovative layout of 6 cell-strings + 2 electric circuits in a PV module.

This technology halves the electric current of the cell and reduces effectively the internal electric resistance on the cell ribbon and increases the module power by 2%. The twin panel design minimizes the power loss in shading conditions, hence improves the system mismatch and heightens the efficiency of the PV system.

Lower Hot Spot Temperature

By halving the electric current of both the cells and the cell-strings, the hot spot temperature can be reduced by 50%, which enhances the reliability of the PV module.

Lower Operating Temperature

As the half-cut cells only have the half working current, the power thermal loss of the PV module during operation can be reduced considerably by 25% and the operating temperature of the PV module also is lower, which improves the PV module reliability and increases the overall power output.

Lower Shading Loss

The twin section layout of the cell strings in a PV module enables the module to continue to produce at least 50% of the overall energy even when one part of the module or the cell string is shaded.

Multi-busbar Technology

In comparison with the conventional 5 busbar design, the innovative multi-busbar design on the cell can shorten the current collection transverse path by 50% and thereby reduce remarkably the cell internal resistance, which contributes a 1% - 1.5% increase in the power output compared with 5 busbar design.

The MBB design can also mitigate the performance loss caused by blocked electrical pathways in case of cell microcracks and finger electrode erosion due to external factors.

Another advantage of the MBB design is the improved light absorption thanks to the round ribbon application. In comparison with the traditional flat ribbon of 5BB, the round ribbon can increase the light utilization by 1% - 1.5%.

Bifacial Technology

The bifacial PV modules allow light to enter simultaneously from both the front and the back sides of a solar module. By converting both direct and reflected light into electricity, bifacial PV systems can generate as much as 30% more energy than a comparable monofacial PV system.

The reflected light can come from a variety of sources, such as reflection from the ground or from a neighboring row of PV modules. The reflectiveness of the surface decides the albedo and hence the amount of the additional electricity generated of the bifacial PV modules.

The installation height of the bifacial PV modules also influences the power gain and is recommended not less than 1 meter.

Relation of albedo and bifacial gain

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