--- title: "Gamko New Energy GKA210M108-530W 530W Solar Panel - Specs & Review | ComparePV" description: "Gamko New Energy GKA210M108-530W 530W solar panel. Specs: 20.75% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gamko-new-energy-gka210m108-530w" updated: 2026-09-11 --- # Gamko New Energy GKA210M108-530W Light for its output, no clear weak spot 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Gamko New Energy - **Model:** GKA210M108-530W - **Series:** GKA210M108 (530W–550W) - **Rated power:** 530 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 530 W | 535 W | Typical | | | Module efficiency | 20.75% | 20.90% | Typical | 10,631 | | Power density | 207.5 | 209.0 | Typical | 10,593 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,778 | | Weight (kg) | 25.5 kg | 28.4 kg | Strong - top 5% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.75% | 20.90% | Typical | 10,631 | | Power density | 207.5 | 209.0 | Typical | 10,593 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 23% | 8,778 | | Weight per kWp | 48.1 | 53.0 | Strong - top 5% | 2,066 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **48.1 kg per kWp** - Top 5% of the PERC 500-550 W segment, against a median of 53.0. Ranked 2,066th in the whole database. - **-0.340 %/°C temperature coefficient** - Top 23% of the PERC 500-550 W segment, against a median of -0.350. - **Best for:** Residential, commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 530 W - **Efficiency:** 20.75 % - **Voltage at Pmax (Vmp):** 30.48 V - **Current at Pmax (Imp):** 17.39 A - **Open-circuit voltage (Voc):** 36.57 V - **Short-circuit current (Isc):** 18.26 A ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1960 mm - **Width:** 1303 mm - **Thickness:** 30 mm - **Weight:** 25.5 kg - **Area:** 2.55 m2 - **Power density:** 207.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10631 of 14005 | | Power density | 10593 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 2066 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Up to 21.54% Efficiency – Above Peer Comparables** - The module's peak efficiency of 21.54% outperforms direct competitors in the same power class: Goldi Solar GS10-B144-TF at 21.3%, IBC Solar 182M Half Cell at 21.28%, and S-Energy SL65-72BGJ at 21.3%. The 0.20–0.24 percentage-point advantage translates into higher energy yield per unit of constrained roof area. - **30-Year Linear Power Warranty** - The manufacturer provides a 30-year linear power warranty, compared to the 25-year industry standard in the mid-tier segment. The extended warranty horizon directly improves IRR metrics in financial models for commercial installations and utility-scale PV projects. - **Bifacial PERC – Rear-Side Energy Gain** - The bifacial construction enables energy generation from the rear side of the module, with a typical bifacial gain of 5–15% depending on ground albedo and mounting angle. In ground-mounted systems with light-colored gravel ballast or on flat roofs with white TPO/PVC membranes, the bifacial effect delivers a measurable increase in annual energy yield. - **108 Half-Cut Cells – Predictable String Parameters** - The 108 half-cut cell format provides consistent, repeatable Voc and Isc values across strings, simplifying inverter sizing and minimizing MPPT mismatch risk in larger prosumer and commercial installations. - **IEC 61215 and IEC 61730 Certification** - The series carries IEC 61215 (performance) and IEC 61730 (safety) certification, which is required by project finance banks and insurers for systems above 50 kWp. The certification also covers the manufacturer's declared mechanical load ratings of 2,400 Pa for wind and 5,400 Pa for snow. ## Cons - **PERC Instead of TOPCon – Higher Degradation Rate** - PERC technology exhibits an annual degradation rate of 0.6–0.8%, whereas newer TOPCon cells degrade at 0.4–0.5%/year (sources: thegrewsolar.com, solarnplus.com). TOPCon captured approximately 66% of global manufacturing capacity in 2024, and Gamko itself has already launched the N-type GKA210N108 series — suggesting that the PERC lineup is being technologically superseded even within the manufacturer's own product portfolio. - **Manufacturer Not Ranked on BNEF Tier 1 List** - Gamko New Energy, with an annual production capacity of approximately 1.2 GW (2023), does not appear on the BNEF Tier 1 list, which requires participation in at least six projects exceeding 10 MW financed by independent commercial banks within a 24-month period. This may limit the series' bankability when securing project finance for PV farms above 1 MWp. ## About this series The Gamko New Energy GKA210M108 (530W-550W) series is designed for installations where maximizing power output per square meter and stable performance under varying conditions are crucial. The use of **monocrystalline** cells in the PERC technology allows for efficient utilization of solar radiation even when weather conditions in Poland are less than ideal - such as during cloudy days or early and late in the day. The **108-cell** configuration and refined module architecture make it easy to build chains with predictable parameters, leading to a more efficient choice of inverter and fewer compromises in the design. Compared to many competing modules, it stands out due to its **long linear power warranty**, which gives investors greater confidence in the long-term profitability of their investment. This is the ideal choice for installers and investors seeking a solution for **commercial rooftops**, larger prosumer installations, and PV farms, where repeatability and predictable energy production are essential. ## Notable figures - At 20.8% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - Power density of 207.5 W/m² matches the \*\*PERC 500-550W\*\* median - Temperature coefficient of -0.34%/°C matches the \*\*PERC 500-550W\*\* median - 25.5 kg weight - 2.9 kg lighter than \*\*PERC 500-550W\*\* median (28.4 kg), reducing installation effort - In the top 76% for efficiency among all PERC panels ## Questions ### Are the Gamko New Energy GKA210M108 panels bifacial, and does that make sense under Polish conditions? Yes, the GKA210M108 series consists of bifacial modules that capture light from both the front and rear side (e.g., reflected from light-colored ground surfaces or roofing membranes). In Poland, the additional rear-side energy gain typically ranges from 5–15%, depending on ground albedo and tilt angle. Bifacial technology is most cost-effective in ground-mounted installations and flat-roof systems with a light-colored surface coating. ### What warranty is provided for the Gamko GKA210M108 530W–550W panels? The manufacturer offers a 12-year product warranty covering material and workmanship defects, as well as a 30-year linear power output warranty. This means the panel is guaranteed to retain a specified minimum percentage of its rated power output over three decades, making the investment financially predictable over a long time horizon. ### What does PERC technology mean in the Gamko GKA210M108 panels, and why does it matter under overcast conditions? PERC (Passivated Emitter and Rear Cell) is an enhancement to the standard monocrystalline cell architecture. An additional passivation layer on the rear of the cell reduces electron recombination, resulting in higher conversion efficiency and improved performance under diffuse light conditions. In Poland, where overcast days account for nearly half of the year, this characteristic has a direct positive impact on annual energy yield. ### What types of installations are the Gamko GKA210M108 modules rated up to 550W best suited for? The series is primarily suited for commercial flat-roof installations, larger prosumer systems, and small-to-medium-scale photovoltaic farms. The 108-cell layout using large-format (210 mm) wafers simplifies string design with well-matched electrical parameters, streamlining inverter selection and minimizing system-level losses. ### How do the Gamko GKA210M108 panels handle mechanical loads — can they withstand snow and high winds? The GKA210M108 series modules are certified for a wind load of up to 2,400 Pa and a snow load of up to 5,400 Pa. For reference, 5,400 Pa corresponds to a layer of wet snow exceeding 50 cm in depth. In practice, this means the panels meet the technical requirements for the vast majority of locations across Poland, including mountainous regions. ### Are the Gamko GKA210M108 530W–550W modules currently available for purchase? Yes, the GKA210M108 series is active and currently available. It is not a discontinued model. When placing an order, however, it is advisable to confirm the availability of specific power variants (530W–550W) with your distributor, as stock allocations may vary depending on the season and order volume. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/7-1357f2d9a24b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | -20 W, cooler, +4.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +30 W, cooler, +4.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | -25 W, cooler, +3.9 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +25 W, cooler, +3.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | -30 W, cooler, +3.8 pp | | [Gamko New Energy GKA210M108-535W](https://comparepv.com/panel/gamko-new-energy-gka210m108-535w) | 535 W | Very close match | | [Gamko New Energy GKA210M108-540W](https://comparepv.com/panel/gamko-new-energy-gka210m108-540w) | 540 W | +10 W, +0.4 pp | | [Gamko New Energy GKA210M108-545W](https://comparepv.com/panel/gamko-new-energy-gka210m108-545w) | 545 W | +15 W, +0.6 pp | | [Gamko New Energy GKA210M108-550W](https://comparepv.com/panel/gamko-new-energy-gka210m108-550w) | 550 W | +20 W, +0.8 pp | | [Jetion JT590SJk(B)](https://comparepv.com/panel/jetion-jt590sjk-b) | 590 W | +60 W, cooler, +2.4 pp | | [Resun Solar RS9V-M-DG-590](https://comparepv.com/panel/resun-solar-rs9v-m-dg-590) | 590 W | +60 W, heavier, +2.3 pp | | [Jetion JT585SJk(B)](https://comparepv.com/panel/jetion-jt585sjk-b) | 585 W | +55 W, cooler, +2.1 pp | | [Resun Solar RS9V-M-DG-585](https://comparepv.com/panel/resun-solar-rs9v-m-dg-585) | 585 W | +55 W, heavier, +2.1 pp | | [Gamko New Energy GKA210N108-580W](https://comparepv.com/panel/gamko-new-energy-gka210n108-580w) | 580 W | +50 W, +2.0 pp | --- Source: https://comparepv.com/panel/gamko-new-energy-gka210m108-530w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.