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Gamko New Energy GKA166M144-455
Gamko New Energy Brand review

GKA166M144-455

455 Wp TOPCon
ComparePV verdict

Light for its output, weak in heat

Rank 10,379 of 14,129
Compare panels Datasheet PDF
Power (Wp)
455
Typical for its class
Efficiency (%)
20.79
Weak · bottom 2%
Density (Wp/m²)
207.9
Weak · bottom 2%
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
21.0
Strong · 3.0 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The Gamko New Energy GKA166M144 series consists of monocrystalline modules based on PERC technology, designed for stable operation in real rooftop and ground-mounted conditions. The use of half-cut architecture and MBB technology improves power generation and reduces losses in connections, resulting in better energy production even with partial shading and in less sunny conditions. The PID resistance is also noteworthy, which is important in installations exposed to more demanding conditions and long cable runs. The modules have positive power tolerance, which makes string design easier without the risk of actual performance falling below the expected level. The design is prepared for operation in a demanding environment thanks to tests for resistance to corrosive factors such as salt fog and ammonia. This is a reasonable choice for installers and investors looking for predictable performance in residential, commercial, and PV farm applications.

Ranking

1,096 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.79% 22.52% Weak · bottom 2% 10,636
Power density 207.9 225.2 Weak · bottom 2% 10,562
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,425
Weight per kWp 46.2 52.2 Strong · top 15% 1,016
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 6 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Strengths
46.2 kg per kWp

Top 15% of the TOPCon 450-500 W segment, against a median of 52.2.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 12,425th in the whole database.

20.79% module efficiency

Bottom 2% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 10,636th in the whole database.

207.9 watts per square metre

Bottom 2% of the TOPCon 450-500 W segment, against a median of 225.2. Ranked 10,562nd in the whole database.

What owners get
Half-Cut + MBB Architecture Minimizes Losses

Splitting cells in half reduces internal resistance, while the multi-busbar (MBB) architecture lowers interconnection losses. In practice, this translates to better energy yield under partial shading conditions - a meaningful advantage in typical rooftop installations where uniform irradiance is rarely achievable.

30-Year Power Warranty (84.8%)

The manufacturer guarantees at least 84.8% of rated power output after 30 years of operation, a figure comparable to the warranties offered by leading Tier-1 suppliers. For projects with a 20-25 year investment horizon, this is a tangible factor in LCOE calculations.

Positive Power Tolerance Only

The 440-460 Wp power range with a 0/+5 W tolerance ensures that no module ships below its rated nameplate value. This makes string design more straightforward and means real-world system output meets or exceeds design projections.

Certified PID Resistance

The modules carry certified resistance to Potential Induced Degradation (PID), which is especially important in systems with long DC cable runs, high DC bus voltage, and high-humidity environments - conditions typical of utility-scale PV plants and industrial installations.

Robust Mechanical Strength

Certified to withstand a snow load of 5,400 Pa and a wind load of 2,400 Pa, these modules can be installed in climatic zones with heavy snowfall and high wind exposure (zones I-III per PN-EN 1991-1-3) without requiring additional reinforced mounting structures.

Trade-offs
Efficiency ~2 pp Below Comparable TOPCon Modules

The series peaks at 21.02% module efficiency, while direct competitors in the same power class - the Risen RSM96-11-440-460BNDG at 23.00% and the SunKean SKT440~460M12-96D4 at 23.02% - demonstrate the gap clearly. A ~2 percentage point efficiency deficit means that, for the same roof area, a system built around the GKA166M144 will generate approximately 9-10% less energy than N-type modules from a comparable price segment.

PERC Being Displaced by TOPCon and HJT

Launched in 2022, the series is based on PERC technology, which has been steadily phased out of mass production since 2023-2024 in favor of TOPCon and HJT. By 2025, TOPCon's share of global module shipments exceeded 70% (per Wood Mackenzie). Choosing PERC today means investing in a technology with a shrinking ecosystem and a widening efficiency gap relative to current-generation products.

Manufacturer Not Listed on Tier-1 Rosters

Gamko New Energy does not appear on the BNEF or RENVU Tier-1 module manufacturer lists for 2024-2025. This may be a consideration for bank financing of utility-scale PV projects - many lenders require modules from Tier-1 manufacturers - as well as for the future resale of installations.

Notes from the database
  • At 20.8% efficiency, this panel is 1.7pp below the TOPCon 450-500W median of 22.5%
  • 207.9 W/m² power density is 17.3 W/m² below TOPCon 450-500W median (225.2 W/m²) - requires larger installation area
  • -0.36%/°C temperature coefficient - 0.07pp worse than TOPCon 450-500W median (-0.29%/°C), expect higher hot weather losses
  • Weight of 21.0 kg (3.0 kg below TOPCon 450-500W median of 24.0 kg) allows easier transport and roof mounting
  • In the top 75% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 455 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.79 % Weak Segment median 22.52%
Vmpp · Impp 41.59 V · 10.94 A Operating point at max power
Voc · Isc 50.17 V · 11.60 A Sizes the string length
Dimensions 2108×1038×30 mm · 2.19 m² of roof
Weight 21.0 kg Strong Strong · 3.0 kg below median
Cells 144 · TOPCon Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°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 84.8 % Equals 387 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

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
-0.360 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Gamko New Energy GKA166M144-455 455 W 20.79% -0.360 21.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +40 W, cooler, +4.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +50 W, cooler, +3.9 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +50 W, cooler, +3.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +35 W, cooler, +3.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +45 W, cooler, +3.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +45 W, cooler, +3.7 pp
GKA166M144 (440W class) 440 W 20.11% -0.360 21.0 kg -15 W, -0.7 pp
GKA166M144 (445W class) 445 W 20.34% -0.360 21.0 kg -10 W, -0.4 pp
GKA166M144 (450W class) 450 W 20.57% -0.360 21.0 kg -0.2 pp
GKA166M144 (460W class) 460 W 21.02% -0.360 21.0 kg +0.2 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +135 W, cooler, +3.0 pp
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +130 W, cooler, +2.8 pp
BGO 580 580 W 23.50% -0.290 26.0 kg +125 W, cooler, +2.7 pp
GKA120N-PRO-580W 580 W 23.42% -0.300 26.7 kg +125 W, cooler, +2.6 pp

Found 89 panels of the same or similar size to this one, within ±10 mm. See them here Found 345 panels of the same or similar size to this one, within ±25 mm. See them here Found 350 panels of the same or similar size to this one, within ±50 mm. See them here Found 1036 panels of the same or similar size to this one, within ±100 mm. See them here

About the GKA166M144 series

6 answered

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

What warranty is provided for the Gamko New Energy GKA166M144 panels?
The GKA166M144 series comes with a 12-year product warranty covering manufacturing defects and structural integrity, as well as a 30-year linear power output warranty. The linear warranty guarantees that after three decades of operation, the module will retain at least the manufacturer-specified minimum percentage of its nominal power. Thanks to the positive power tolerance, real-world output from day one meets or exceeds the declared 460 W rating.
Are the Gamko GKA166M144 panels suitable for a pitched roof with partial shading?
Yes. The half-cut cell architecture - 144 cells divided into two independent halves - ensures that shading from a chimney, antenna, or dormer window affects only a portion of the module rather than the entire string. Multi Busbar (MBB) technology further shortens current flow paths, reducing resistive losses. As a result, the GKA166M144 generates more energy under typical rooftop conditions than legacy full-cell modules.
What is PERC technology and why does the GKA166M144 series use it?
PERC (Passivated Emitter and Rear Cell) is a monocrystalline cell technology that incorporates an additional passivation layer on the rear side of the cell. This layer suppresses charge carrier recombination, resulting in higher solar energy conversion efficiency compared to standard monocrystalline cells. In the GKA166M144 series, PERC works in concert with the half-cut cell design and MBB technology, delivering consistent energy production under both full irradiance and diffuse light conditions.
Are the Gamko GKA166M144 modules resistant to harsh weather and environmental conditions?
Yes. The series has passed salt mist and ammonia resistance tests, confirming its suitability for coastal, agricultural, and industrial installations. The module structure withstands wind loads up to 2,400 Pa and snow loads up to 5,400 Pa, making it safe for deployment in Polish climate conditions where heavy snowfall is common.
Is the GKA166M144 series resistant to PID degradation, and why does that matter?
Yes, the GKA166M144 modules have verified resistance to PID (Potential Induced Degradation). PID is a power loss phenomenon caused by high string voltage combined with moisture, and it is particularly detrimental in large-scale installations with long cable runs and utility-scale PV farms. PID resistance ensures that the module maintains its rated power output throughout the entire warranty period without significant losses attributable to this effect.
Are the 460 W Gamko GKA166M144 panels suitable for residential installations, or only for utility-scale PV farms?
The GKA166M144 is well suited for residential, commercial, and utility-scale PV applications alike. The 440-460 W power range falls within the standard for prosumer systems, and features such as positive power tolerance and PID resistance are equally valuable in small-scale installations. It is advisable, however, to verify that the inverter supports the open-circuit voltage (Voc) characteristic of 144-cell modules in this format, and to consult a certified installer for proper system sizing.
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