--- title: "Gamko New Energy GKA157M72 405W Solar Panel: Specs & Datasheet | ComparePV" description: "Gamko New Energy GKA157M72 405W solar panel. Specs: 20.87% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka157m72-405w-1" image: "https://comparepv.com/og/panel/gamko-new-energy-gka157m72-405w-1.png" updated: 2026-09-11 --- # Gamko New Energy GKA157M72 405W Warranty pick, weak in heat 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA157M72 405W - **Series:** GKA157M72 - **Rated power:** 405 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 405 W | 410 W | Typical | | | Module efficiency | 20.87% | 20.60% | Typical | 10,407 | | Power density | 208.7 | 206.2 | Typical | 10,370 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 15% | 12,425 | | Weight (kg) | 21.0 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.87% | 20.60% | Typical | 10,407 | | Power density | 208.7 | 206.2 | Typical | 10,370 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 15% | 12,425 | | Weight per kWp | 51.9 | 53.0 | Typical | 5,262 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Strengths - **30 year performance warranty** - Top 17% of the PERC 400-450 W segment, against a median of 25 yrs. ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 15% of the PERC 400-450 W segment, against a median of -0.350. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.87 % - **Voltage at Pmax (Vmp):** 41.70 V - **Current at Pmax (Imp):** 9.71 A - **Open-circuit voltage (Voc):** 50.90 V - **Short-circuit current (Isc):** 10.15 A ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1956 mm - **Width:** 992 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 1.94 m2 - **Power density:** 208.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 3.00 % - **Output after 30 years:** 324 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10407 of 14129 | | Power density | 10370 of 14129 | | Temperature coefficient | 12425 of 14129 | | Weight | 5262 of 14129 | | Warranty | 21 of 14129 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - Efficiency of 20.9% matches the \*\*PERC 400-450W\*\* median - Power density of 208.7 W/m² matches the \*\*PERC 400-450W\*\* median - Temperature coefficient of -0.36%/°C matches the \*\*PERC 400-450W\*\* median - Weight of 21.0 kg is typical for \*\*PERC 400-450W\*\* panels - In the top 74% for efficiency among all PERC panels ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/GKA157M72-390-410W-8052d37f000a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +2.4 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +2.4 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, cooler, +2.4 pp | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, cooler, +2.4 pp | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +2.4 pp | | [Just Solar JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 W | +50 W, cooler, +2.4 pp | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +2.4 pp | | [Gamko New Energy GKA157M72-390W](https://comparepv.com/panel/gamko-new-energy-gka157m72-390w) | 390 W | -15 W, -0.8 pp | | [Gamko New Energy GKA157M72-395W](https://comparepv.com/panel/gamko-new-energy-gka157m72-395w) | 395 W | -10 W, -0.5 pp | | [Gamko New Energy GKA157M72-400W](https://comparepv.com/panel/gamko-new-energy-gka157m72-400w) | 400 W | -0.3 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +3.1 pp, +10 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +2.8 pp, +10 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +2.6 pp, +10 yr warranty | | [Maxeon SPR-MAX6-440](https://comparepv.com/panel/maxeon-spr-max6-440) | 440 W | Cooler, +1.9 pp, +10 yr warranty | | [Maxeon SPR-MAX6-435](https://comparepv.com/panel/maxeon-spr-max6-435) | 435 W | Cooler, +1.6 pp, +10 yr warranty | | [Lina Energy LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440)](https://comparepv.com/panel/lina-energy-lepv-132-ultra-premium-black-440wp-lepv-440) | 440 W | +35 W, cooler, +1.5 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka157m72-405w-1 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.