Middle of its segment, weak in heat
The Rarlon PV Tech Monocrystalline 72 Black series focuses on delivering high efficiency in large-scale systems, combining elegance with industrial durability. The use of high-density monocrystalline cells allows for better performance parameters in diffused light conditions, which is crucial for efficiency in the Polish climate zone. These modules eliminate the problem of rapid power degradation thanks to advanced protection against the PID effect, which sets them apart from standard market solutions. Thanks to the 72-cell architecture, investors can reduce installation costs by optimizing the number of rails and clamps while maintaining high power per square meter. The reinforced frame construction guarantees safety in the face of extreme weather events, such as strong winds or heavy snow loads, making them an ideal choice for open spaces. The aesthetic black finish makes these panels a popular choice for projects where the appearance of the installation must harmonize with modern surroundings. The product features a low temperature coefficient, which minimizes energy losses during summer heat. This solution is dedicated primarily to solar farms and large commercial facilities, for which the priority is maximizing the return on investment through long-term reliability and stability of the generated electricity.
Ranking
Signals from the data
Commercial and hot-climate.
Hot climates, tight roof space and roofs where every square metre has to count.
Bottom 1% of the PERC 350-400 W segment, against a median of -0.350. Ranked 13,879th in the whole database.
Bottom 7% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 13,161st in the whole database.
Bottom 7% of the PERC 350-400 W segment, against a median of 199.0. Ranked 13,141st in the whole database.
Efficiency up to 19.23% falls within the typical range for PERC cells and is comparable to many still-available modules of this generation, though newer N-type technologies (TOPCon/HJT) already reach 20-22%.
The declared low power temperature coefficient limits generation losses during summer heat, which matters practically at typical module operating temperatures of 45-65°C on rooftops in Poland.
The frame construction is designed for extreme mechanical loads, increasing safety for installations in open areas, e.g. PV farms, exposed to strong wind and snow accumulation.
The larger module format (72 cells, up to 370 Wp) reduces the number of mounting rails and clamps per MW installed compared to smaller 60-cell panels, lowering CAPEX for utility-scale installations.
Advanced PID resistance limits power degradation under high humidity and system voltage stress, while the uniform black finish is an asset in projects where installation aesthetics matter.
The Monocrystalline72 Black series is no longer manufactured, meaning limited availability of warranty service, replacement parts, and difficulty sourcing identical modules for future system expansion.
Maximum efficiency of 19.23% is lower than comparable 370 Wp modules from competitors: Solitek SOLID Bifacial (19.57%), Solarwatt Panel vision GM 3.0 (19.9%), and Selfa SV120M.3.2 (20.3%) - a gap of more than 1 percentage point.
Unlike the competing Solitek SOLID Bifacial at the same 370 Wp power class, the Rarlon series offers no double-sided generation, eliminating a potential additional 5-15% yield from albedo in ground-mount or high-reflectivity roof installations.
Ningbo Rarlon Photovoltaic Technology is a smaller Chinese manufacturer not listed in standard BNEF Tier 1 rankings, which can complicate bankability for large PV farm financing compared to Solarwatt or other Tier-1-listed brands.
- At 18.3% efficiency, this panel is 1.1pp below the PERC 0-400W median of 19.4%
- At 183.0 W/m², this panel generates 11.4 W/m² less per unit area than PERC 0-400W median (194.4 W/m²)
- At -0.47%/°C, loses 0.11pp more power per degree than PERC 0-400W median (-0.36%/°C)
- At 22.0 kg (1.5 kg above PERC 0-400W median of 20.5 kg), requires checking roof load capacity
- #13161 for efficiency, #13879 for temperature performance out of 14005 panels
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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