Light for its output, weak in heat
The Gamko New Energy GKA182M132 series comprises monocrystalline modules based on large-area cells and a half-cut design, specifically engineered for stable operation in rooftop and larger commercial installations. The use of PERC technology and a multi-busbar construction enhances current collection from the cell and reduces losses, resulting in improved energy production, particularly in partially shaded conditions and under less intense sunlight - common in the Polish climate. The module utilizes tempered glass and a robust aluminum frame, while a sealed connection box with IP68 protection ensures safe operation on rooftops and in humid environments. A key feature is high PID resistance, which helps to minimize power degradation over the long term and increases the predictability of energy yields. The GKA182M132 series is ideal for installers and investors who want to optimize energy yield from limited space and opt for long-term power warranty without paying extra for "marketing" add-ons.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Hot climates, roofs where every square metre has to count and tight roof space.
Top 6% of the PERC 450-500 W segment, against a median of 53.1. Ranked 1,678th in the whole database.
Top 20% of the PERC 450-500 W segment, against a median of 25 yrs.
Bottom 8% of the PERC 450-500 W segment, against a median of -0.350. Ranked 12,425th in the whole database.
Bottom 14% of the PERC 450-500 W segment, against a median of 208.5.
Bottom 15% of the PERC 450-500 W segment, against a median of 20.82%.
The manufacturer provides a linear performance warranty for 30 years, exceeding the industry-standard 25 years offered by most competitors in the PERC 485-505 Wp segment. For investors, this translates to greater yield predictability and lower financial risk throughout the full system lifetime.
The combination of bifacial light harvesting, multi-busbar (MBB) technology, and a half-cut cell layout reduces internal resistance and mismatch losses under partial shading - a significant advantage in Poland's climate, which sees a high proportion of diffuse irradiance. The bifacial design can yield an additional 5-15% energy gain with appropriate mounting configurations.
The IP68-rated junction box ensures watertight integrity even during prolonged submersion, which is particularly relevant for flat-roof installations where standing water may accumulate. The declared high resistance to PID (Potential Induced Degradation) safeguards long-term performance, especially in high-voltage systems (>1000 V DC).
The module is certified for a snow load of 5400 Pa and a wind load of 2400 Pa, meeting the requirements for climate zones with snow load class S2-S3 per EN 1991-1-3 - fully adequate for Polish atmospheric conditions.
The 182 mm cells arranged in a 132-cell layout (half-cut, 66×2) deliver peak power up to 505 Wp at an efficiency of up to 21.27%, enabling effective use of limited roof area without requiring the larger 210 mm format, which demands wider racking rails.
The maximum efficiency of the GKA182M132 series is 21.27%, while direct N-type TOPCon equivalents - the Sunova Tangra M Pro HD and Q-SUN Qrystal N10 - reach 22.7% at the same peak power of 505 Wp. The ~1.43 percentage-point efficiency gap over the same surface area results in measurably lower specific yield or requires additional modules in space-constrained projects. Furthermore, PERC technology is susceptible to LID (Light-Induced Degradation), a phenomenon that N-type cells are largely immune to.
The workmanship warranty covers only 12 years, whereas Tier-1 manufacturers such as JA Solar, Jinko Solar, and LONGi standardly offer 25 years. The shorter product warranty period represents elevated risk for investors in the event of mechanical or electrical defects occurring after year 12 of operation.
Nantong Gamko New Energy (annual manufacturing capacity ~1.2 GW per ENF Solar) does not appear on Bloomberg NEF Tier 1 lists or PV Evolution Labs Top Performer rankings - unlike brands such as Jinko, JA, LONGi, or even Sunova. This may result in more difficult access to project finance for large commercial installations where lenders require manufacturer warranties recognized by insurers.
- Efficiency of 20.4% matches the PERC 450-500W median
- At 204.2 W/m², this panel generates 4.2 W/m² less per unit area than PERC 450-500W median (208.5 W/m²)
- Temperature coefficient of -0.36%/°C matches the PERC 450-500W median
- At 23.0 kg, this panel is 1.5 kg lighter than PERC 450-500W median (24.5 kg) - easier handling during installation
- In the top 82% for efficiency among all PERC panels
Specifications
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 GKA182M132 series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.