--- title: "Gamko New Energy GKA108N-520W Solar Panel: Specs & Datasheet | ComparePV" description: "Gamko New Energy GKA108N-520W solar panel. Specs: 23.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka108n-520w" image: "https://comparepv.com/og/panel/gamko-new-energy-gka108n-520w.png" updated: 2026-09-11 --- # Gamko New Energy GKA108N-520W Space saver, weak in heat 435 panels in the segment TOPCon 500-550 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA108N-520W - **Series:** GKA108N-PRO - **Rated power:** 520 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 500-550 W (435 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 520 W | 510 W | Typical | | | Module efficiency | 23.40% | 22.74% | Strong - top 9% | 919 | | Power density | 234.0 | 227.4 | Strong - top 8% | 935 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 21% | 6,152 | | Weight (kg) | 25.0 kg | 27.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.40% | 22.74% | Strong - top 9% | 919 | | Power density | 234.0 | 227.4 | Strong - top 8% | 935 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 21% | 6,152 | | Weight per kWp | 48.1 | 52.4 | Typical | 2,047 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **234.0 watts per square metre** - Top 8% of the TOPCon 500-550 W segment, against a median of 227.4. Ranked 935th in the whole database. - **23.40% module efficiency** - Top 9% of the TOPCon 500-550 W segment, against a median of 22.74%. Ranked 919th in the whole database. ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 21% of the TOPCon 500-550 W segment, against a median of -0.290. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 520 W - **Efficiency:** 23.40 % - **Voltage at Pmax (Vmp):** 34.90 V - **Current at Pmax (Imp):** 14.91 A - **Open-circuit voltage (Voc):** 41.50 V - **Short-circuit current (Isc):** 15.71 A ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1960 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.22 m2 - **Power density:** 234.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 454 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 919 of 14129 | | Power density | 935 of 14129 | | Temperature coefficient | 6152 of 14129 | | Weight | 2047 of 14129 | | Warranty | 21 of 14129 | ## Pros - **N-type TOPCon with Bifacial as Standard** - N-type TOPCon cells deliver 3-5% higher annual energy yield than legacy PERC cells, thanks to lower LID/LeTID degradation rates. The bifacial design typically adds 5-15% additional output through ground albedo reflection - in rooftop installations on light-colored roof surfaces, this directly increases self-consumption. - **Peak Efficiency of 23.85% - Near Industry Leaders** - The top variant in the series achieves 23.85% module efficiency, placing it just 0.05 percentage points below the Huasun Everest G12R and JA Solar JAT60S41 LR (both at 23.9%). At the same time, the series clearly outperforms the Lu'an Solar MO (max. 22.32%), making it a genuine alternative to higher-priced Tier-1 brands. - **30-Year Linear Power Warranty** - The manufacturer guarantees output power protection for 30 years. At the standard annual degradation rate of N-type cells (\<0.4%/year), this translates to >88% of rated power after 30 years. By comparison, many lower-tier brands offer only a 25-year warranty with degradation down to 84.8%. - **High Mechanical Resistance for Polish Climate Conditions** - Certified snow load of 5,400 Pa and wind load of 2,400 Pa meets the requirements for demanding rooftop locations in Poland's climate zones (standard PN-EN 1991-1-3 specifies typically 1.2-2.4 kPa for snow load zone III). The dual-glass construction and multi-busbar (MBB) design further protect cells against microcracks. - **Broad Certification Portfolio** - The series carries IEC 61215, IEC 61730, CE, ISO 9001, ISO 14001, German EPR, and France EPR certifications, enabling deployment across European markets without additional regulatory hurdles in public tenders or subsidy programs. ## Cons - **Not Listed on BNEF Tier-1** - Gamko New Energy does not appear on BloombergNEF's Tier-1 module manufacturer lists (Q1 2026), unlike peer comparable JA Solar. For projects requiring non-recourse bank financing or compliance with certain EU funding programs, this may complicate product acceptance by insurers or lenders. - **12-Year Product Warranty - Below Premium Standard** - A 15-year product workmanship warranty is the norm among Tier-1 and premium-segment manufacturers such as JA Solar and Huasun. Gamko's 12-year coverage provides three fewer years of protection against manufacturing defects - a meaningful consideration for commercial installations with long depreciation cycles. ## About this series The Gamko New Energy GKA108N-PRO series is designed for high operational efficiency in real rooftop conditions, even when solar irradiation is variable. The use of **N-type cells in TOPCon technology** supports stable energy production and reduces typical losses that can reduce yields in residential and commercial installations. The **multi-busbar (MBB) design** also improves current collection from the cells and helps maintain the aesthetic appearance of the modules on the roof. The GKA108N-PRO stands out for its **excellent performance in low light conditions** - which is useful in the morning, evening, and on cloudy days, resulting in more even energy generation throughout the year. The manufacturer also emphasizes **PID resistance** and a refined cell and module design, which supports long-term reliability. This series is ideal for investors who want to maximize self-consumption in their homes, build installations for small businesses, or implement modern rooftop systems where efficiency, durability, and predictable performance over the years are key. ## Notable figures - 23.4% module efficiency - 0.7pp better than the \*\*TOPCon 500-550W\*\* median of 22.7% - 234.0 W/m² power density - 6.6 W/m² more than \*\*TOPCon 500-550W\*\* median (227.4 W/m²), more power per roof area - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 500-550W\*\* panels - 25.0 kg weight - 2.0 kg lighter than \*\*TOPCon 500-550W\*\* median (27.0 kg), reducing installation effort - #919 for efficiency, #6152 for temperature performance out of 14129 panels ## Questions ### What warranty is provided for the Gamko New Energy GKA108N-PRO panels? The GKA108N-PRO series comes with a 12-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means the manufacturer guarantees that the modules will maintain a specified performance level for three decades - a standard commitment for N-type TOPCon-class modules that ensures a predictable return on investment. ### What is TOPCon technology and why should I choose it in the GKA108N-PRO series? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that achieves higher conversion efficiency than legacy PERC cells. In the GKA108N-PRO series, this translates to a module efficiency of up to 23.18% at a peak power output of 530 W. N-type cells also feature a lower temperature coefficient - meaning smaller power losses on hot days - as well as superior resistance to LID/LeTID degradation, resulting in more stable long-term performance. ### Are the Gamko GKA108N-PRO panels bifacial, and is the premium worth it? Yes, the GKA108N-PRO is a bifacial module that generates electricity from both the front and rear surfaces by capturing light reflected from the ground or rooftop. The real-world gain from the rear side typically ranges from 5-15%, depending on the albedo of the underlying surface. For ground-mounted systems and light-colored roofs, this represents a measurable energy benefit; on darker roof surfaces the effect is reduced, but the module still outperforms monofacial alternatives thanks to the underlying N-type cell technology. ### Does the GKA108N-PRO series perform well under overcast conditions or on cloudy days? Yes, the manufacturer specifically highlights low-light performance as one of the key strengths of this series. The advanced surface texture applied to both the cells and the front glass enables efficient harvesting of diffuse irradiance. For the Polish climate - where overcast days account for a significant portion of the year - this characteristic translates into more consistent energy yields during morning and evening hours as well as throughout the autumn and winter months. ### Can the Gamko GKA108N-PRO panels withstand Polish weather conditions - snow, wind, and frost? The GKA108N-PRO series is certified for a snow load of up to 5400 Pa and a wind load of up to 2400 Pa, meeting the structural requirements of most locations in Poland, including mountain regions. The modules carry IEC 61215 and IEC 61730 certifications, confirming both mechanical durability and electrical safety. The manufacturer also declares resistance to salt mist and ammonia exposure, which is relevant for agricultural environments. ### What is the peak power of a single GKA108N-PRO panel, and how many modules do I need for a residential installation? The highest available power rating in the GKA108N-PRO series is 530 Wp. For a typical prosumer system sized at 10 kWp, approximately 19 modules are required. For the 6-8 kWp systems most common in single-family homes, 12-16 panels will suffice. The exact number depends on the available roof area, the orientation and tilt of the roof sections, and the inverter selected. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/pro-108-182x210mm-solar-cells-8ccbf80f3030.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +1.6 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +1.4 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +40 W, cooler, +1.4 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | -15 W, cooler, +1.3 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | -15 W, cooler, +1.3 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +35 W, cooler, +1.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.1 pp | | [Gamko New Energy GKA108N-PRO-510W](https://comparepv.com/panel/gamko-new-energy-gka108n-pro-510w) | 510 W | -10 W, -0.4 pp | | [Gamko New Energy GKA108N-PRO-515W](https://comparepv.com/panel/gamko-new-energy-gka108n-pro-515w) | 515 W | -0.2 pp | | [Gamko New Energy GKA108N-PRO-525W](https://comparepv.com/panel/gamko-new-energy-gka108n-pro-525w) | 525 W | +0.2 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +1.0 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +20 W, cooler, +1.0 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +20 W, cooler, +1.0 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +25 W, cooler, +0.9 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +25 W, cooler, +0.8 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka108n-520w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.