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Gamko New Energy GKA210M132-665W
Gamko New Energy Brand review

GKA210M132-665W

665 Wp PERC Bifacial
ComparePV verdict

Solid all-round for its segment

Rank 2,733 of 14,005
Compare panels Datasheet PDF
Power (Wp)
665
Typical for its class
Efficiency (%)
21.41
Typical · median 21.25%
Density (Wp/m²)
214.1
Typical · median 212.5
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
34.0
Typical · median 34.5 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Gamko New Energy GKA210M132 (655W-675W) series is designed to maximize energy yield in situations where every square meter counts - particularly in large-scale installations. The use of monocrystalline PERC cells supports high operational efficiency in real-world conditions, while a refined connection architecture (including multi-busbar MBB design) improves current collection and reduces losses, resulting in more stable daily production.

In practice, these modules help reduce energy costs by optimizing surface utilization and simplifying the balancing of power throughout the entire chain. The panel features tempered glass with an anti-reflective coating, which supports operation in diffuse light and varying weather conditions. An additional advantage is PID resistance and an IP68 junction box, which are important in projects exposed to moisture, dust, and long-term operation. This is a good choice for PV farms, industrial rooftops, and large commercial projects, where predictable yields are more important than marketing promises.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.41% 21.25% Typical 8,280
Power density 214.1 212.5 Typical 8,250
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 51.1 52.3 Typical 4,471
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 · 3 caution
Best for

Commercial, utility-scale and shaded-installations.

What owners get
Bifacial + MBB: Real-World Yield Gain

Dual-glass bifacial PERC cells capture reflected irradiance from the ground surface (typical bifacial gain of 5–15% depending on ground albedo), while the multi-busbar (MBB) architecture reduces resistive losses and improves partial-shading tolerance — particularly valuable in utility-scale installations.

Up to 21.73% Efficiency — Top-Tier Peer Performance

The peak module efficiency of 21.73% matches that of the Neo Solar Power NESE 655-675-66MHT-G12, BYD AURO MSTK-33 (21.73%), and Trina Solar Vertex TSM-DE21 (21.7%), placing this series at the forefront of the 655–675 W segment with no efficiency compromise.

30-Year Linear Power Warranty

The manufacturer provides a 30-year linear performance warranty — a critical parameter in PV plant financial models with a 25–30 year investment horizon — supporting project bankability and valuation by lenders and insurers.

IP68 Junction Box + Certified PID Resistance

An IP68-rated junction box combined with certified resistance to Potential Induced Degradation (PID) makes these modules suitable for high-humidity environments, chemically aggressive conditions, and high-voltage string configurations typical of industrial rooftops and ground-mounted farms.

Mechanical Strength: 5,400 Pa Snow / 2,400 Pa Wind

The verified mechanical load ratings exceed the minimum IEC 61215 requirements (2,400/2,400 Pa), qualifying these modules for deployment in climate zones with heavy snow accumulation or high wind loads without additional engineering constraints.

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

Gamko New Energy does not appear on the BloombergNEF Tier 1 bankability list as of Q1 2026, whereas peer comparables Trina Solar and BYD hold that status. The absence of this classification may complicate non-recourse financing for large-scale projects and increase the risk premium required by project banks and insurers.

P-type PERC Technology vs. N-type TOPCon

This series, introduced in 2021, is based on P-type PERC, while the market in 2025–2026 is consolidating around N-type TOPCon — which offers lower LID degradation rates, better thermal efficiency coefficients, and higher bifacial gain. Competing modules in the same 655–675 W price segment are already available in TOPCon from leading manufacturers, making PERC a maturing technology in decline.

12-Year Product Warranty vs. 25 Years at Trina Solar

The 12-year product warranty falls significantly below the market standard: the Trina Solar Vertex TSM-DE21 in the same power/efficiency segment offers 25 years. This gap directly affects technical risk assessment in long-horizon projects and may reduce the residual value of the installation at end of financing term.

Notes from the database
  • Efficiency of 21.4% matches the PERC 650-700W median
  • At 214.1 W/m² power density, roof space requirements are typical for PERC 650-700W panels
  • At -0.34%/°C, hot weather performance is typical for PERC 650-700W panels
  • In the top 59% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 665 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.41 % Typical Segment median 21.25%
Vmpp · Impp 38.04 V · 17.48 A Operating point at max power
Voc · Isc 45.54 V · 18.73 A Sizes the string length
Dimensions 2384×1303×35 mm · 3.11 m² of roof
Weight 34.0 kg Typical Typical · median 34.5 kg
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 43 °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

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
-0.340 %/°C against a segment median of -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Gamko New Energy GKA210M132-665W 665 W 21.41% -0.340 34.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +3.8 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +3.6 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.6 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +35 W, cooler, +3.6 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +30 W, cooler, +3.5 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +3.4 pp
GKA210M132-655W 655 W 21.09% -0.340 34.0 kg -10 W, -0.3 pp
GKA210M132-660W 660 W 21.25% -0.340 34.0 kg Very close match
GKA210M132-670W 670 W 21.57% -0.340 34.0 kg Very close match
GKA210M132-675W 675 W 21.73% -0.340 34.0 kg +10 W, +0.3 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +140 W, cooler, +3.7 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +135 W, cooler, +3.5 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +130 W, cooler, +3.4 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +125 W, cooler, +3.2 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +95 W, cooler, +3.1 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Gamko New Energy GKA210M132 a bifacial panel, and what does that mean in practice?
Yes, the GKA210M132 series employs bifacial technology, meaning the module generates electricity from both its front and rear surfaces — the front side captures direct solar irradiance, while the rear side harvests light reflected from the ground or mounting surface. In installations featuring high-albedo surfaces such as white roofing membranes or gravel ballast, energy yield can be several percentage points higher than with conventional monofacial modules. This makes bifacial technology particularly cost-effective in utility-scale PV farms and industrial rooftop systems where adequate albedo conditions can be achieved.
What warranty coverage comes with the Gamko New Energy GKA210M132 panels?
The manufacturer provides a 12-year product warranty covering manufacturing defects and material failures, along with a 30-year linear power output warranty. The linear performance guarantee ensures that the module maintains a specified minimum power output level throughout three decades of operation. For commercial installations and utility-scale PV farms, this long-term performance assurance is a critical factor in yield forecasting, bankability assessment, and return-on-investment planning.
What types of installations are the Gamko GKA210M132 modules, rated up to 675 W, best suited for?
The GKA210M132 series is designed primarily for large-scale commercial and industrial applications — utility-scale PV farms, warehouse rooftops, manufacturing facilities, and logistics centers. The high per-module power output of up to 675 W allows a large system capacity to be achieved with fewer modules, simplifying installation logistics and reducing balance-of-system (BoS) costs, particularly racking and mounting structure expenses. This series is not a typical choice for small-scale residential prosumer systems on single-family homes.
What are the advantages of the multi busbar (MBB) technology used in the GKA210M132 series?
Multi busbar (MBB) technology collects current through a greater number of thin busbars rather than a few wide ones. This design reduces resistive losses within the PERC cell and improves the module's tolerance to micro-cracks — current can bypass localized cell damage via alternative conduction paths. In practical terms, MBB translates into higher daily energy production and significantly improved resistance to hot-spot formation, which would otherwise degrade module performance and longevity over time.
Do the GKA210M132 panels perform well under overcast skies and diffuse irradiance conditions?
Yes. The GKA210M132 series features tempered glass with an anti-reflective coating (ARC) that enhances light absorption under low-irradiance and diffuse atmospheric conditions. The monocrystalline PERC cell technology further supports higher energy yield during partially cloudy conditions. This is a meaningful advantage in the Polish climate, where a substantial portion of annual energy production comes from days with diffuse rather than direct irradiance, making low-light performance a key metric for accurate yield modeling.
What mechanical load ratings do the Gamko GKA210M132 panels carry, and are they suitable for snow-heavy regions of Poland?
The GKA210M132 series modules are certified to withstand a snow load of up to 5,400 Pa and a wind pressure of up to 2,400 Pa. These ratings are sufficient for the vast majority of locations across Poland, including foothill and mountainous regions subject to heavy snowfall. An additional advantage is the IP68-rated junction box, which provides robust ingress protection and electrical safety during years of operation in harsh weather conditions, helping preserve system reliability and minimizing maintenance costs over the module's service life.
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