--- title: "GCL GCL-NT10/72GDF-600 Solar Panel: Specs & Datasheet | ComparePV" description: "GCL GCL-NT10/72GDF-600 solar panel. Specs: 23.23% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gcl-gcl-nt10-72gdf-600" image: "https://comparepv.com/og/panel/gcl-gcl-nt10-72gdf-600.png" updated: 2026-09-11 --- # GCL GCL-NT10/72GDF-600 Efficiency leader, no clear weak spot 1,085 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** GCL - **Model:** GCL-NT10/72GDF-600 - **Series:** GCL-NT10/72GDF - **Rated power:** 600 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1085 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 600 W | 620 W | Weak - bottom 5% | | | Module efficiency | 23.23% | 22.80% | Strong - top 20% | 1,295 | | Power density | 232.3 | 227.7 | Strong - top 21% | 1,295 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 31.1 kg | 32.8 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.23% | 22.80% | Strong - top 20% | 1,295 | | Power density | 232.3 | 227.7 | Strong - top 21% | 1,295 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 51.8 | 53.1 | Typical | 5,247 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.23% module efficiency** - Top 20% of the TOPCon 600-650 W segment, against a median of 22.80%. - **232.3 watts per square metre** - Top 21% of the TOPCon 600-650 W segment, against a median of 227.7. - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 600 W - **Efficiency:** 23.23 % - **Voltage at Pmax (Vmp):** 44.55 V - **Current at Pmax (Imp):** 13.47 A - **Open-circuit voltage (Voc):** 52.50 V - **Short-circuit current (Isc):** 14.25 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.1 kg - **Area:** 2.58 m2 - **Power density:** 232.3 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:** 524 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1295 of 14129 | | Power density | 1295 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 5247 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Highest efficiency among peer comparables** - Efficiency up to 23.81% surpasses all compared competitors: Longi Hi-MO X6 Explorer (22.8%), JA Solar JAM72D40 LB (23.2%), and Risen TITAN (21.7%) at the same maximum power of 615 Wp. This translates into higher energy yield per unit of roof area. - **N-type TOPCon technology with dual-glass build** - N-type TOPCon cells exhibit lower first-year degradation and reduced susceptibility to LID/LeTID compared to older PERC cells, while the dual-glass bifacial construction further improves mechanical durability. - **Low power temperature coefficient (-0.29%/°C)** - A value of -0.29%/°C is better than the typical -0.35 to -0.40%/°C of conventional PERC modules, limiting output losses on hot days and improving annual yield in warmer climates. - **Bifacial design boosts energy yield** - The dual-sided construction captures reflected irradiance from the rear side, providing additional energy production, especially over bright, reflective roof or ground surfaces. - **Tier-1 manufacturer with 35 years of experience** - GCL has operated since 1990 and is classified as a Tier-1 bankable manufacturer, reducing financial risk and easing bank financing for the project. ## Cons - **Shorter product warranty than competitors** - GCL offers a 12-year product warranty, while the direct peer comparable Longi Hi-MO X6 Explorer (615 Wp) provides 15 years of product warranty with the same 30-year power warranty. This gap may matter when assessing service risk over a longer ownership horizon. ## About this series The GCL-NT10/72GDF series represents a new generation of solar modules built on **N-type TOPCon** cells, engineered to maximize energy yield on limited roof or ground space. The combination of **half-cut** cell technology and a double-glass **bifacial** construction allows the module to capture reflected radiation on both sides, resulting in higher energy output compared to conventional monofacial panels, especially on bright, reflective surfaces. N-type cells deliver lower first-year degradation and reduced susceptibility to LID and LeTID effects, keeping the installation's performance stable throughout its lifetime. The **low power temperature coefficient** helps the panels perform better on hot days, limiting output losses during summer months. The double-glass build increases mechanical durability and extends module lifespan, supporting a **long product and power warranty**. The GCL-NT10/72GDF series suits both residential prosumer installations and larger commercial projects, where an optimal performance-to-footprint ratio and a predictable, low levelized cost of energy over the system's lifetime matter most. ## Notable figures - Efficiency of 23.2% matches the \*\*TOPCon 600-650W\*\* median - 232.3 W/m² power density - 4.6 W/m² more than \*\*TOPCon 600-650W\*\* median (227.7 W/m²), more power per roof area - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 600-650W\*\* median - 31.1 kg weight - 1.7 kg lighter than \*\*TOPCon 600-650W\*\* median (32.8 kg), reducing installation effort - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How much power does a single GCL-NT10/72GDF panel generate? Modules from the GCL-NT10/72GDF series reach a maximum output of up to 615 Wp. This is one of the higher outputs among 72-cell panels, meaning fewer panels are needed to reach the same system capacity, which reduces the required roof or ground area and shortens installation time. ### How does the bifacial GCL-NT10/72GDF panel differ from a standard monofacial panel? The bifacial GCL-NT10/72GDF has a dual-glass construction and can also capture light reflected from the ground, roof, or mounting structure on its rear side. On bright, reflective surfaces (such as white gravel or a light-colored roof), this can boost energy yield by several to over a dozen percent compared to a monofacial module of the same nominal power. ### What warranty comes with GCL-NT10/72GDF panels? GCL provides a 12-year product warranty and a 30-year power performance warranty. This means that even after three decades, the panel should still deliver a significant share of its original output, giving investors confidence in the long-term profitability of the installation. ### Does TOPCon technology in GCL-NT10/72GDF panels have advantages over PERC cells? Yes. The N-type TOPCon cells used in this series show lower first-year degradation and reduced susceptibility to LID and LeTID effects compared to older P-type PERC cells. Additionally, a lower power temperature coefficient means the panel loses less efficiency during heat, resulting in higher real-world output during summer months. ### Are GCL-NT10/72GDF panels suitable for large commercial installations or only residential use? The GCL-NT10/72GDF series works well in both settings. High single-module power output and half-cut construction make it attractive for residential prosumer installations, while its strong bifacial yield and favorable power-to-area ratio also make it well suited to solar farms and large commercial projects focused on optimizing LCOE. ### Is GCL a reliable solar panel manufacturer? GCL is a Chinese manufacturer with a long track record in the photovoltaic industry, classified as a Tier 1 supplier, which indicates a stable financial position and bankability for projects using its modules. This status matters for financing through banks and leasing institutions, as it reduces the risk of manufacturer insolvency during the warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1785317613655347-994355673a92.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +45 W, lighter, +1.8 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -40 W, lighter, +1.6 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +40 W, lighter, +1.6 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -45 W, lighter, +1.4 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +35 W, lighter, +1.4 pp | | [GCL GCL-M10/72GDF-540](https://comparepv.com/panel/gcl-gcl-m10-72gdf-540) | 540 W | -60 W, hotter, -2.3 pp | | [GCL GCL-M10/72GDF-545](https://comparepv.com/panel/gcl-gcl-m10-72gdf-545) | 545 W | -55 W, hotter, -2.1 pp | | [GCL GCL-M10/72GDF-550](https://comparepv.com/panel/gcl-gcl-m10-72gdf-550) | 550 W | -50 W, hotter, -1.9 pp | | [GCL GCL-M10/72GDF-555](https://comparepv.com/panel/gcl-gcl-m10-72gdf-555) | 555 W | -45 W, hotter, -1.8 pp | | [GCL GCL-M10/72H-560](https://comparepv.com/panel/gcl-gcl-m10-72h-560) | 560 W | Hotter, -1.6 pp, -5 yr warranty | | [GCL GCL-M10/72H-565](https://comparepv.com/panel/gcl-gcl-m10-72h-565) | 565 W | Hotter, -1.4 pp, -5 yr warranty | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +30 W, cooler, +1.2 pp | --- Source: https://comparepv.com/panel/gcl-gcl-nt10-72gdf-600 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.