--- title: "GCL GCL-NT10/72GDF-585 Solar Panel: Specs & Datasheet | ComparePV" description: "GCL GCL-NT10/72GDF-585 solar panel. Specs: 22.65% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gcl-gcl-nt10-72gdf-585" image: "https://comparepv.com/og/panel/gcl-gcl-nt10-72gdf-585.png" updated: 2026-09-11 --- # GCL GCL-NT10/72GDF-585 Solid all-round for its segment 256 panels in the segment N-type 550-600 W ## Identity - **Manufacturer:** GCL - **Model:** GCL-NT10/72GDF-585 - **Series:** NT10/72GDF - **Rated power:** 585 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 550-600 W (256 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 22.65% | 22.45% | Typical | 3,579 | | Power density | 226.5 | 224.5 | Typical | 3,557 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 31.1 kg | 30.2 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.65% | 22.45% | Typical | 3,579 | | Power density | 226.5 | 224.5 | Typical | 3,557 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 53.2 | 52.5 | Typical | 7,017 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Utility-scale, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 22.65 % - **Voltage at Pmax (Vmp):** 43.95 V - **Current at Pmax (Imp):** 13.31 A - **Open-circuit voltage (Voc):** 52.05 V - **Short-circuit current (Isc):** 14.07 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:** N-type - **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:** 226.5 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:** 511 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3579 of 14129 | | Power density | 3557 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 7017 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Module efficiency 22.45-23.42% vs. peer class** - The top variant in the series achieves 23.42% module efficiency, outperforming direct peer comparables (JS Solar JS210MHC120: 21.4%, LEDVANCE M585~605P60UB: 21.37%, Hiwatt HW-M12/120H: 21.4%) by nearly 2 percentage points. In practice, this translates to higher energy yield from the same roof or ground area. - **Low temperature coefficient of -0.29%/°C** - N-type TOPCon technology delivers a Pmax temperature coefficient of -0.29%/°C, compared to the typical -0.35 to -0.38%/°C for PERC modules. At a cell temperature of 65°C - a typical summer scenario in Poland - modules in this series lose approximately 11.6% of rated power, whereas a PERC equivalent would lose 14-15.2%. - **Minimal LID degradation (\<0.34%)** - LID (Light-Induced Degradation) testing recorded a loss of just -0.33% after 10 kWh/m² of irradiation. N-type technology virtually eliminates boron-oxygen LID, a phenomenon characteristic of P-type (PERC) cells, directly resulting in higher energy yield during the early years of operation. - **30-year power warranty (87.4%)** - The manufacturer guarantees ≥87.4% of rated power output after 30 years of operation, with an annual degradation rate of ~0.4%/year after year 1. The dual-glass construction eliminates the risk of frame warping and edge corrosion, supporting long-term parameter stability. - **BNEF Tier 1 - bankability for project-financed installations** - GCL-SI (GCL System Integration) is listed on Bloomberg NEF's Tier 1 roster as one of the world's largest manufacturers (historically ranked #2 by annual production capacity). Tier 1 status is required by lenders for non-recourse financing of PV plants above 1.5 MW, making this module eligible for project finance. ## Cons - **Series discontinued** - The NT10/72GDF series is no longer in active production - availability is limited to existing distributor inventory. This introduces risk of being unable to expand an installation with identical modules in the future, potential difficulties with warranty replacement units, and limited post-sale support dedicated to this series. - **12-year product warranty - below premium standard** - The product warranty stands at 12 years, while current premium N-type series (e.g., Jinko Tiger Neo, LONGi Hi-MO X6) standardly offer 15-year product warranties. For commercial installations and PV farms with a financing horizon of 15-20 years, this may require additional risk analysis by lending institutions. ## About this series GCL NT10/72GDF photovoltaic panels are an advanced solution based on **N-type TOPCon technology**, setting new efficiency standards in large-scale installations. Thanks to the use of N-type cells, these modules are characterized by near-zero light-induced degradation and excellent efficiency in low sunlight. The **bifacial dual-glass** construction allows for the effective use of light reflected from the ground, which significantly increases total energy generation compared to standard, single-sided counterparts. The use of large silicon wafers translates into system cost optimization, which is crucial for investors seeking a maximum return on investment. This series effectively eliminates the problem of rapid power loss over time, offering **exceptional parameter stability** over decades of operation. It is a product dedicated primarily to professional photovoltaic farms and large commercial facilities, where every kilowatt-hour of yield and durability in variable weather conditions count. What distinguishes them from the competition is the precise combination of high power density with a **low temperature coefficient**, which ensures that the modules work stably even during hot days. By choosing the GCL NT10/72GDF series, you gain investment certainty based on innovations that realistically shorten the payback period through higher production in a real-world operating environment. ## Notable figures - At 22.6% efficiency, this panel is on par with typical \*\*N-type 550-600W\*\* modules - At 226.5 W/m² power density, roof space requirements are typical for \*\*N-type 550-600W\*\* panels - Temperature coefficient of -0.29%/°C matches the \*\*N-type 550-600W\*\* median - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - In the top 25% for efficiency among all N-type panels ## Questions ### Is the GCL NT10/72GDF series still available for purchase? The GCL NT10/72GDF series has been discontinued and is no longer offered by the manufacturer as an active product line. It may, however, still be available in limited quantities from distributors who carry existing inventory. If you require similar technical specifications based on N-type TOPCon technology, it is worth inquiring about newer GCL series that serve as its direct successors. ### What warranty coverage applies to the GCL NT10/72GDF panels? GCL NT10/72GDF panels are covered by a 12-year product warranty against material and workmanship defects, as well as a 30-year power output warranty. The manufacturer guarantees that after 30 years of operation, the modules will retain at least 87.4% of their original rated power. This exceptionally long warranty horizon is made possible by the inherent stability of N-type cells, which exhibit virtually zero light-induced degradation (LID). ### How does the N-type TOPCon technology in the GCL NT10/72GDF differ from standard P-type panels? The N-type TOPCon cells used in the GCL NT10/72GDF series feature a thin passivation layer that drastically reduces recombination losses. The result is a module efficiency of up to 23.4%, near-zero light-induced degradation (LID), and a low temperature coefficient of -0.29%/°C, whereas typical P-type panels generally reach -0.35%/°C. In practice, this translates to higher annual energy yield over the entire lifetime of the installation. ### How much additional energy does the bifacial construction of the GCL NT10/72GDF panels generate? GCL NT10/72GDF modules achieve a bifaciality factor of 80-85%, meaning the rear side absorbs up to 85% of the irradiance captured by the front side. In utility-scale PV plants with high-albedo ground surfaces - such as concrete, light-colored gravel, or snow - the bifacial gain can increase annual energy yield by 5-15% compared to monofacial modules with the same nominal power rating of 605 W. ### How do GCL NT10/72GDF panels perform on hot days when temperatures rise significantly? With a Pmax temperature coefficient of -0.29%/°C, GCL NT10/72GDF panels lose significantly less power under elevated temperatures than standard P-type modules, which typically reach -0.35%/°C. At a cell temperature of 70°C, this difference translates to several percentage points of higher actual power output. This is a meaningful advantage particularly in utility-scale installations, where every additional kilowatt-hour of yield has a direct impact on return on investment. ### Are the GCL NT10/72GDF 605 W panels suitable for a residential rooftop installation? The GCL NT10/72GDF series, with dimensions of 2278 x 1134 x 30 mm and a weight of approximately 31 kg, is designed primarily for utility-scale PV plants and large commercial installations. On a typical residential rooftop, handling and mounting these modules is challenging, and their large form factor limits flexibility in system layout design. For prosumers, smaller and lighter modules specifically designed for rooftop installations are a significantly better choice. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/359629505690c5b976a6cb-128cf358c2a1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -30 W, lighter, +2.0 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, cooler, +1.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | -35 W, lighter, +1.8 pp | | [GCL GCL-M10/72GDF-540](https://comparepv.com/panel/gcl-gcl-m10-72gdf-540) | 540 W | -45 W, hotter, -1.8 pp | | [GCL GCL-M10/72GDF-545](https://comparepv.com/panel/gcl-gcl-m10-72gdf-545) | 545 W | -40 W, hotter, -1.5 pp | | [GCL GCL-M10/72GDF-550](https://comparepv.com/panel/gcl-gcl-m10-72gdf-550) | 550 W | -35 W, hotter, -1.4 pp | | [GCL GCL-M10/72GDF-555](https://comparepv.com/panel/gcl-gcl-m10-72gdf-555) | 555 W | -30 W, hotter, -1.2 pp | | [GCL GCL-M10/72H-560](https://comparepv.com/panel/gcl-gcl-m10-72h-560) | 560 W | Hotter, -1.0 pp, -5 yr warranty | | [GCL GCL-M10/72H-565](https://comparepv.com/panel/gcl-gcl-m10-72h-565) | 565 W | Hotter, -0.8 pp, -5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, lighter, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, lighter, +2.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/gcl-gcl-nt10-72gdf-585 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.