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Gamko New Energy GKA182N108 (445W class)
Gamko New Energy Brand review

GKA182N108 (445W class)

445 Wp TOPCon Bifacial
ComparePV verdict

Light for its output, no clear weak spot

Rank 8,751 of 14,129
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.79
Strong · top 3%
Density (Wp/m²)
227.9
Strong · top 2%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
19.0
Strong · 3.0 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The Gamko New Energy GKA182N108 series is designed for installations where maximizing energy yield from a limited roof area is crucial. The use of N-type cells in TOPCon technology helps maintain high efficiency even in challenging conditions - at elevated temperatures and during periods of reduced sunlight. This is a practical solution to common issues faced by users in Poland: seasonal energy production fluctuations and summer performance drops.

A key advantage of this series is a long linear warranty on power output, which simplifies long-term investment planning. The modules are also designed for real-world outdoor operation thanks to a robust construction with tempered glass and anti-reflective coating, which minimizes light reflection losses. Furthermore, the high-sealing junction box ensures reliability in rain, snow, and extreme temperature variations.

The GKA182N108 is a good choice for single-family homes, small businesses, and prosumer installations where stable production and predictable performance are expected over the long term.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.79% 22.00% Strong · top 3% 3,061
Power density 227.9 220.2 Strong · top 2% 2,845
Temperature coefficient -0.300 -0.290 Typical 6,152
Weight per kWp 42.7 51.5 Strong · top 2% 236
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

8 positive · 2 caution
Best for

Residential, commercial and hot-climate.

Strengths
42.7 kg per kWp

Top 2% of the TOPCon 400-450 W segment, against a median of 51.5. Ranked 236th in the whole database.

227.9 watts per square metre

Top 2% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 2,845th in the whole database.

22.79% module efficiency

Top 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 3,061st in the whole database.

What owners get
N-type TOPCon Cells - Lower Degradation

TOPCon N-type technology exhibits LID degradation below 1% (vs. 1.5-3% for PERC) and a superior temperature coefficient of power (typically -0.30%/°C vs. -0.35%/°C for PERC). This translates into measurably higher annual energy yield under Polish climatic conditions, particularly during summer months when rooftop surface temperatures are elevated.

Bifacial Design - Additional Yield from Albedo

The bifacial module construction enables energy harvest from irradiance reflected off the mounting surface. At typical albedo values for light-colored rooftops or ground surfaces (10-25%), bifacial gain reaches 5-15% of additional output, making this feature especially valuable in space-constrained installations.

30-Year Linear Power Warranty

The manufacturer offers a 30-year linear power warranty, exceeding the 25-year standard provided by the Suntech Ultra V Pro (the direct competitor in this segment). The extended warranty horizon simplifies IRR calculations and facilitates project financing with banks or lessors that require long-term yield certainty.

Efficiency Up to 23.04% - Segment-Leading Performance

The peak efficiency of 23.04% matches the top-performing units in the peer comparison group (SunKean/Sunket SKT430~450M10-108D5: 23.04%) and is significantly higher than the Suntech Ultra V Pro (max. 22.5%). This series therefore delivers the highest available energy yield per square meter among the considered peer comparables.

Robust Structural Load Ratings (2400/5400 Pa)

Certified load ratings of 2400 Pa (wind) and 5400 Pa (snow) confirm suitability for operation in the Polish climate (snow load zones up to 3.0 kN/m² per PN-EN 1991-1-3). Anti-reflective coated tempered glass and a high-ingress-protection junction box further support the long-term reliability of outdoor installations.

Trade-offs
Not Listed on BNEF Tier 1 (Q1 2026)

Gamko New Energy does not appear on the BloombergNEF bankable manufacturers list (Q1 2026), which is led by Jinko, LONGi, Trina, JA Solar, Tongwei, and Aiko. The absence of Tier 1 status may present a barrier to project financing (loans, leasing) from financial institutions that routinely require modules sourced from manufacturers on this list.

Limited Manufacturing Scale vs. Tier 1 Producers

Gamko's production capacity stood at approximately 1.2 GW/year in 2023, while Tier 1 leaders exceed 80 GW annually. The smaller scale may imply elevated risk regarding spare-part supply continuity and the long-term fulfillment of warranty obligations over a 30-year horizon.

Notes from the database
  • 22.8% module efficiency - 0.8pp better than the TOPCon 400-450W median of 22.0%
  • 227.9 W/m² power density - 7.7 W/m² more than TOPCon 400-450W median (220.2 W/m²), more power per roof area
  • At -0.30%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • Weight of 19.0 kg (3.0 kg below TOPCon 400-450W median of 22.0 kg) allows easier transport and roof mounting
  • #3061 for efficiency, #6152 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.79 % Strong Segment median 22.00%
Vmpp · Impp 33.26 V · 13.38 A Operating point at max power
Voc · Isc 39.73 V · 14.31 A Sizes the string length
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 19.0 kg Strong Strong · 3.0 kg below median
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 86.0 % Equals 383 W guaranteed

Datasheet charts

Open datasheet PDF

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 445 Wp appear here. The rest cover the whole series.

I-V Curves at Different Irradiance (Cell Temp = 25°C) I-V Curves at Different Irradiance (Cell Temp = 25°C) Whole series I-V Curves at Different Cell Temperatures I-V Curves at Different Cell Temperatures Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Gamko New Energy GKA182N108 (445W class) 445 W 22.79% -0.300 19.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, cooler, +1.7 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, cooler, +1.7 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, cooler, +1.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, cooler, +1.5 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +1.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, cooler, +1.5 pp
GKA182M108-395W 395 W 20.23% -0.360 19.5 kg -50 W, hotter, -2.6 pp
GKA182M108-400W 400 W 20.48% -0.360 19.5 kg -45 W, hotter, -2.3 pp
GKA182M108-405W 405 W 20.74% -0.360 19.5 kg -40 W, hotter, -2.1 pp
GKA182M108-410W 410 W 21.00% -0.360 19.5 kg -35 W, hotter, -1.8 pp
GKA182M108-415W 415 W 21.25% -0.360 19.5 kg -30 W, hotter, -1.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.2 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, cooler, +1.9 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +60 W, heavier, +1.9 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +55 W, cooler, +1.7 pp

Found 1797 panels of the same or similar size to this one, within ±10 mm. See them here Found 1928 panels of the same or similar size to this one, within ±25 mm. See them here Found 3413 panels of the same or similar size to this one, within ±50 mm. See them here Found 4007 panels of the same or similar size to this one, within ±100 mm. See them here

About the GKA182N108 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What warranty coverage applies to Gamko New Energy GKA182N108 panels?
The GKA182N108 series comes with a 12-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. After 30 years of operation, the module is guaranteed to retain at least 87.4% of its nominal rated power. This is one of the longer warranty standards available in this price class, making it easier to evaluate return on investment over multi-decade horizons.
What does it mean that the GKA182N108 panel is bifacial, and does it matter for a residential rooftop installation?
Bifacial means the module can harvest light from both its front side and rear side - for example, irradiance reflected off a lighter-colored roofing surface or underlayment membrane. In a typical pitched-roof installation, the energy gain from the rear side is modest, typically 3-8%, but becomes more pronounced with high-albedo roofing materials or ground-mounted systems. For a standard single-family home this is not a critical parameter, but it does provide an additional efficiency margin at no extra cost.
How does the GKA182N108 perform during summer high-temperature conditions?
N-type TOPCon cells feature a lower power temperature coefficient of -0.30%/°C, which is a better result than standard PERC cells, which typically range from -0.35 to -0.40%/°C. In practice, this means that during hot summer days the GKA182N108 series loses output efficiency more slowly than older PERC-based modules. This advantage is particularly relevant on dark-colored roofs, where module operating temperature can easily exceed 60-70°C.
How much does a single GKA182N108 panel weigh, and can a typical roof structure support it?
The GKA182N108 module weighs approximately 19 kg and measures 1722×1134×30 mm. A typical 10 kWp system comprising around 22 panels results in a combined weight of approximately 420 kg distributed across roughly 43-45 m² of roof area. The vast majority of standard pitched-roof structures in Poland can comfortably support this load; however, if there is any doubt, it is advisable to have a structural engineer assess the roof before installation.
Are Gamko GKA182N108 panels certified and approved for use in Poland?
Yes, the GKA182N108 series holds IEC 61215 and IEC 61730 certifications, both of which are required under European regulatory and safety standards. The modules are tested for mechanical durability, including wind load resistance up to 2,400 Pa and snow load resistance up to 5,400 Pa. They also meet resistance requirements for salt mist and ammonia exposure. Holding these certifications is a mandatory condition for eligibility under Polish subsidy programs such as Mój Prąd.
What is the maximum power output of the GKA182N108 panel, and how many modules do I need for a 10 kWp system?
The highest-power variant in the GKA182N108 series is rated at 450 Wp. To build a system with a total capacity of 10 kWp, you need approximately 22-23 modules. With module efficiency reaching up to 23% and dimensions of 1722×1134 mm, the array will occupy approximately 43-45 m² of roof surface. This is a relatively compact footprint for a system of this capacity, which is a significant advantage for installations on smaller roof sections.
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