Efficiency leader, no clear weak spot
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
Signals from the data
Commercial, utility-scale and shaded-installations.
Top 4% of the PERC 650-700 W segment, against a median of 21.25%. Ranked 7,370th in the whole database.
Top 6% of the PERC 650-700 W segment, against a median of 212.5. Ranked 7,349th in the whole database.
Top 20% of the PERC 650-700 W segment, against a median of 52.3.
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.
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.
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.
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.
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.
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.
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.
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.
- Efficiency of 21.7% matches the PERC 650-700W median
- 217.3 W/m² power density - 4.8 W/m² more than PERC 650-700W median (212.5 W/m²), more power per roof area
- Temperature coefficient of -0.34%/°C matches the PERC 650-700W median
- #7370 for efficiency, #8778 for temperature performance out of 14005 panels
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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