Middle of its segment, weak in heat
The Gamko New Energy GKA108N-PRO series is designed for high operational efficiency in real rooftop conditions, even when solar irradiation is variable. The use of N-type cells in TOPCon technology supports stable energy production and reduces typical losses that can reduce yields in residential and commercial installations. The multi-busbar (MBB) design also improves current collection from the cells and helps maintain the aesthetic appearance of the modules on the roof.
The GKA108N-PRO stands out for its excellent performance in low light conditions - which is useful in the morning, evening, and on cloudy days, resulting in more even energy generation throughout the year. The manufacturer also emphasizes PID resistance and a refined cell and module design, which supports long-term reliability.
This series is ideal for investors who want to maximize self-consumption in their homes, build installations for small businesses, or implement modern rooftop systems where efficiency, durability, and predictable performance over the years are key.
Ranking
Signals from the data
Residential and commercial.
Hot climates.
Bottom 21% of the TOPCon 500-550 W segment, against a median of -0.290.
N-type TOPCon cells deliver 3-5% higher annual energy yield than legacy PERC cells, thanks to lower LID/LeTID degradation rates. The bifacial design typically adds 5-15% additional output through ground albedo reflection - in rooftop installations on light-colored roof surfaces, this directly increases self-consumption.
The top variant in the series achieves 23.85% module efficiency, placing it just 0.05 percentage points below the Huasun Everest G12R and JA Solar JAT60S41 LR (both at 23.9%). At the same time, the series clearly outperforms the Lu'an Solar MO (max. 22.32%), making it a genuine alternative to higher-priced Tier-1 brands.
The manufacturer guarantees output power protection for 30 years. At the standard annual degradation rate of N-type cells (<0.4%/year), this translates to >88% of rated power after 30 years. By comparison, many lower-tier brands offer only a 25-year warranty with degradation down to 84.8%.
Certified snow load of 5,400 Pa and wind load of 2,400 Pa meets the requirements for demanding rooftop locations in Poland's climate zones (standard PN-EN 1991-1-3 specifies typically 1.2-2.4 kPa for snow load zone III). The dual-glass construction and multi-busbar (MBB) design further protect cells against microcracks.
The series carries IEC 61215, IEC 61730, CE, ISO 9001, ISO 14001, German EPR, and France EPR certifications, enabling deployment across European markets without additional regulatory hurdles in public tenders or subsidy programs.
Gamko New Energy does not appear on BloombergNEF's Tier-1 module manufacturer lists (Q1 2026), unlike peer comparable JA Solar. For projects requiring non-recourse bank financing or compliance with certain EU funding programs, this may complicate product acceptance by insurers or lenders.
A 15-year product workmanship warranty is the norm among Tier-1 and premium-segment manufacturers such as JA Solar and Huasun. Gamko's 12-year coverage provides three fewer years of protection against manufacturing defects - a meaningful consideration for commercial installations with long depreciation cycles.
- At 22.9% efficiency, this panel is on par with typical TOPCon 500-550W modules
- Power density of 229.5 W/m² matches the TOPCon 500-550W median
- At -0.30%/°C, hot weather performance is typical for TOPCon 500-550W panels
- 25.0 kg weight - 2.0 kg lighter than TOPCon 500-550W median (27.0 kg), reducing installation effort
- In the top 16% for efficiency among all TOPCon panels
Specifications
Datasheet charts
Measured curves published by Gamko New Energy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 510 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Alternatives
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About the GKA108N-PRO series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.