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Gamko New Energy GKA157M72-400
Gamko New Energy Brand review

GKA157M72-400

400 Wp TOPCon
ComparePV verdict

Middle of its segment, weak in heat

Rank 11,610 of 14,129
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 1%
Efficiency (%)
20.61
Weak · bottom 3%
Density (Wp/m²)
206.1
Weak · bottom 3%
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
21.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Gamko New Energy GKA157M72 series is designed for maximum energy yield on typical roofs and in smaller ground-mounted installations, where efficient use of space is crucial. The use of monocrystalline PERC cells helps ensure stable performance even in less ideal conditions, while the MBB (multi-busbar) design supports better current flow and reduced sensitivity to microcracks, resulting in predictable production over the long term.

In practice, this series solves a common problem for investors: how to increase yield without complicating the project. The modules have an anti-reflective coating on the tempered glass, which allows them to better utilize diffuse light, typical for the Polish climate. Furthermore, the manufacturer highlights PID resistance, which is important for longer strings and higher voltage systems.

GKA157M72 is a good choice for homes, businesses, PV farms, and renovation projects, where compatibility, durability, and a reasonable balance between efficiency and cost are important.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.61% 22.00% Weak · bottom 3% 11,161
Power density 206.1 220.2 Weak · bottom 3% 11,170
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,425
Weight per kWp 52.5 51.5 Typical 6,090
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 6 caution
Best for

Residential and commercial.

Not ideal for

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

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 12,425th in the whole database.

20.61% module efficiency

Bottom 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 11,161st in the whole database.

206.1 watts per square metre

Bottom 3% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 11,170th in the whole database.

What owners get
30-Year Power Output Warranty

The manufacturer guarantees module performance for 30 years, placing the series in the premium class and exceeding the shorter warranty periods offered by some low-cost segment manufacturers. For the investor, this represents a contract for predictable energy yield over the full lifecycle of the installation.

Multi-Busbar PERC with PID Resistance

The Multi-Busbar (MBB) design reduces series resistance and limits sensitivity to cell micro-cracks, while the confirmed resistance to PID (Potential Induced Degradation) is particularly relevant at system voltages above 1000 V and in longer strings typical of industrial installations and utility-scale PV farms.

IEC 61215 and IEC 61730 Certifications

The series holds IEC 61215 (verification of electrical and mechanical parameters) and IEC 61730 (operational safety) certifications, enabling grid-tied installation within the EU and satisfying the requirements of most insurers and financing institutions.

High Mechanical Load Resistance

The modules withstand wind loads of up to 2400 Pa and snow loads of up to 5400 Pa, meeting the requirements for Wind Zone III and Snow Zone II per PN-EN 1991 - parameters that cover the vast majority of installation sites across Poland.

Efficiency Up to 21.13% Within the PERC Class

The upper efficiency limit of 21.13% (410 Wp model) is competitive against peer VDS Renewable VDS-S144/FNH (20.4%) and comparable to the Sunket SKT410~430M10 (21.0%), indicating a well-optimized cell technology within the monocrystalline PERC segment.

Trade-offs
No BNEF Tier 1 Status

Gamko New Energy does not appear on the published BNEF Tier 1 Q1 2026 lists. In projects requiring project finance or EPC insurance guarantees, the absence of Tier 1 status may result in module rejection by lending institutions or a requirement for additional collateral, increasing overall project costs.

12-Year Product Warranty

The manufacturer offers a 12-year product warranty (workmanship), while leading Tier 1 manufacturers - JA Solar, Jinko Solar, and Trina Solar - standardly guarantee 15 years. The 3-year difference may be material in TCO calculations for commercial projects and institutional tenders.

PERC vs. Newer N-Type Technologies

Peer comparable Luxor Solar Eco Line N-type TOPCon achieves 21.33% efficiency at the same power class (up to 410 Wp) and offers a lower LID degradation rate than the P-type PERC cells used in the GKA157M72. Over a 30-year operating horizon, this technological gap may translate into measurable losses in energy yield.

Notes from the database
  • Module efficiency of 20.6% is 1.4pp below average for TOPCon 400-450W panels (median: 22.0%)
  • At 206.2 W/m², this panel generates 14.0 W/m² less per unit area than TOPCon 400-450W median (220.2 W/m²)
  • Temperature coefficient of -0.36%/°C is 0.07pp worse than TOPCon 400-450W median (-0.29%/°C) - higher losses in summer heat
  • Weight of 21.0 kg is typical for TOPCon 400-450W panels
  • Ranked #11161 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.61 % Weak Segment median 22.00%
Vmpp · Impp 41.50 V · 9.64 A Operating point at max power
Voc · Isc 50.60 V · 10.07 A Sizes the string length
Dimensions 1956×992×30 mm · 1.94 m² of roof
Weight 21.0 kg Typical Typical · median 22.0 kg
Cells 72 · 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 82.6 % Equals 330 W guaranteed
Degradation 3.00 → 0.50 % 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 GKA157M72-400 400 W 20.61% -0.360 21.0 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +40 W, cooler, +2.5 pp
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, cooler, +2.4 pp
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +2.4 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, cooler, +2.4 pp
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, cooler, +2.4 pp
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +2.4 pp
GKA157M72-390W 390 W 20.10% -0.360 21.0 kg -10 W, -0.5 pp
GKA157M72-395W 395 W 20.36% -0.360 21.0 kg -0.2 pp
GKA157M72-405W 405 W 20.87% -0.360 21.0 kg +0.3 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg Cooler, +3.4 pp, +10 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg Cooler, +3.1 pp, +10 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg Cooler, +2.9 pp, +10 yr warranty
SPR-MAX6-440 440 W 22.80% -0.290 20.9 kg Cooler, +2.2 pp, +10 yr warranty
SPR-MAX6-435 435 W 22.50% -0.290 20.9 kg Cooler, +1.9 pp, +10 yr warranty
LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440) 440 W 22.37% -0.290 21.0 kg +40 W, cooler, +1.8 pp
NS-420MH-80 420 W 22.28% -0.290 20.0 kg Cooler, +1.7 pp, -5 yr warranty

Found 148 panels of the same or similar size to this one, within ±10 mm. See them here Found 241 panels of the same or similar size to this one, within ±25 mm. See them here Found 360 panels of the same or similar size to this one, within ±50 mm. See them here Found 565 panels of the same or similar size to this one, within ±100 mm. See them here

About the GKA157M72 series

6 answered

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

What is the maximum power output of the Gamko New Energy GKA157M72 panel?
The GKA157M72 series covers modules ranging from 390 to 410 Wp, with the top-tier variant achieving 410 Wp under Standard Test Conditions (STC). This is a strong result for a module based on monocrystalline PERC cells, making the series competitive in both residential installations and smaller utility-scale PV plants where efficient use of available roof or ground area is a priority.
What warranty terms apply to the Gamko New Energy GKA157M72 series?
The manufacturer provides a 12-year product warranty covering manufacturing defects and mechanical damage to the module. A separate 30-year linear power output warranty guarantees a minimum energy yield over three decades of operation. Both warranty tiers align with the industry standard for PERC modules in this price segment.
Do the GKA157M72 panels perform well on overcast days typical of the Polish climate?
Yes, the GKA157M72 series handles diffuse light conditions effectively. Tempered glass with an anti-reflective coating enhances light absorption even under cloudy skies, and monocrystalline PERC cells deliver higher efficiency at low irradiance levels compared to older polycrystalline technology. For Polish conditions, where clear sunny days are relatively limited, this is a meaningful practical advantage.
What is MBB technology in the GKA157M72 modules and why does it matter for long-term durability?
MBB, or multi-busbar, is a cell architecture that uses multiple thin busbars instead of a few wider ones. In the GKA157M72 series, this shortens the current path within each cell, reducing resistive losses and lowering mechanical stress on the cell substrate. The practical outcome is improved resistance to microcracks during transportation and installation, as well as a reduced risk of power degradation over the long-term service life of the module.
Can the GKA157M72 modules withstand high wind loads and heavy snow accumulation?
Yes, the GKA157M72 series is certified for a wind load of up to 2400 Pa and a snow load of up to 5400 Pa, which is sufficient for demanding climatic conditions found across Central Europe. The modules carry IEC 61215 and IEC 61730 certifications, confirming mechanical durability and electrical safety in accordance with international standards.
Is the GKA157M72 a bifacial panel, or does it only collect energy from one side?
The GKA157M72 is a monofacial module - it generates energy exclusively from the front side and does not leverage ground albedo. This translates into simpler system design, a lower purchase cost, and no special requirements regarding the surface beneath the array. In ground-mounted installations with a highly reflective substrate, a bifacial module would achieve a higher annual energy yield; however, the GKA157M72 offsets this with a competitive price-to-power ratio and proven PERC technology.
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