--- title: "GL Solar HY-NT10/54GDF 465W Solar Panel - Specs & Review | ComparePV" description: "GL Solar HY-NT10/54GDF 465W solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/gl-solar-hy-nt10-54gdf" updated: 2026-09-11 --- # GL Solar HY-NT10/54GDF Efficiency leader, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** GL Solar - **Model:** HY-NT10/54GDF - **Series:** HY-NT10/54GDF - **Rated power:** 465 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 465 W | 465 W | Typical | | | Module efficiency | 23.30% | 22.52% | Strong - top 9% | 1,017 | | Power density | 232.7 | 225.2 | Strong - top 10% | 1,115 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.5 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.30% | 22.52% | Strong - top 9% | 1,017 | | Power density | 232.7 | 225.2 | Strong - top 10% | 1,115 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.7 | 52.2 | Typical | 6,318 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.30% module efficiency** - Top 9% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 1,017th in the whole database. - **232.7 watts per square metre** - Top 10% of the TOPCon 450-500 W segment, against a median of 225.2. - **Best for:** Small roofs that need every watt and roofs where every square metre counts. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 33.43 V - **Current at Pmax (Imp):** 13.91 A - **Open-circuit voltage (Voc):** 39.95 V - **Short-circuit current (Isc):** 14.69 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.043 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 2.00 m2 - **Power density:** 232.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 406 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1017 of 14005 | | Power density | 1115 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 6318 of 14005 | | Warranty | 21 of 14005 | ## Pros - **23.3% efficiency — segment leader** - The module achieves 23.3% efficiency, outperforming direct 465 Wp peers: Jinko Solar JS182MHC120 (21.48%) by 1.82 percentage points and Vikram Solar SOMERA (20.91%) by 2.39 pp. On a 20 m² rooftop, this translates to roughly 300–400 kWh of additional annual generation compared to equivalent PERC-based alternatives. - **Low temperature coefficient — N-type advantage** - The temperature coefficient of Pmax is –0.29%/°C, approximately 17% better than typical P-type PERC modules (–0.35%/°C). In real-world conditions where modules reach 50–70°C in summer, this yields measurably higher seasonal output; N-type cells also eliminate the initial LID degradation inherent to P-type silicon. - **30-year linear power warranty** - The manufacturer guarantees more than 87.4% of rated power after 30 years at an annual degradation rate below 0.4%. Most PERC competitors at this power class offer 25-year warranties with retention down to ~84.8% — a 5-year extension and 2.6 pp higher retained power output, which significantly improves LCOE calculations for commercial installations. - **Bifacial + dual-glass as standard** - The bifacial dual-glass design enables rear-side energy harvest — under typical ground-mount conditions, effective yield increases by 10–20% above nominal STC power. Dual glass eliminates backsheet/EVA delamination risk and extends practical module lifetime well beyond the stated 30-year warranty period. - **Certified resistance to harsh environments** - Modules carry certifications for salt mist (IEC 61701), ammonia (IEC 62716), sand, and dust resistance, making them suitable for residential rooftops and commercial utility farms in industrial or agricultural environments. Anti-PID technology minimizes potential-induced degradation losses in high-voltage string configurations (>1000 V DC). ## Cons - **Manufacturer (HY Solar) not on BNEF Tier-1 list** - The actual module manufacturer is Hongyuan Green Energy Co., Ltd. (HY Solar, China), which does not appear on the BNEF Tier-1 module list as of Q1 2026 — a list that includes LONGi, Jinko, Trina, JA Solar, and Canadian Solar. The absence of Tier-1 status may complicate project financing for utility-scale PV installations above 1 MWp where EPC and SPA agreements require modules from BNEF-recognized bankable manufacturers. - **GL Solar is a distributor, not a manufacturer** - GL Solar Solutions srl is an Italian distributor (classified as a seller on ENF Solar), not a manufacturing entity. A 30-year product warranty issued by a trading company rather than the actual manufacturer creates legal execution risk over multi-decade horizons — in the event of ownership changes, insolvency, or restructuring of the distributor, enforcing warranty claims directly against the Chinese OEM becomes significantly more difficult. ## About this series The HY-NT10/54GDF series consists of **bifacial N-type TOPCon photovoltaic modules** engineered for maximum performance under all weather conditions. Through the use of **SMBB technology combined with half-cut cell design**, the panels minimize internal current losses and effectively limit the impact of microcracks on long-term efficiency - a real benefit for anyone expecting stable energy yields over many years of operation. The module's bifaciality enables energy harvesting from both the front and rear sides - under favorable conditions, for example above a bright ground surface or in ground-mounted installations, the effective power generated by the module is significantly higher than the nominal value. N-type technology ensures **excellent performance under low-irradiance conditions** and a low temperature coefficient, which is a particular advantage in the Polish climate with its high number of cloudy days. A dual-glass design, Anti-PID protection, and **certified resistance to salt, ammonia, sand, and dust** make these modules well suited to both residential installations and commercial photovoltaic farms in demanding environments. A **30-year linear power warranty** with annual degradation below 0.4% ensures a high return on investment throughout the entire system life cycle. ## Notable figures - 23.3% module efficiency - 0.8pp better than the \*\*TOPCon 450-500W\*\* median of 22.5% - 232.7 W/m² power density - 7.5 W/m² more than \*\*TOPCon 450-500W\*\* median (225.2 W/m²), more power per roof area - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface - #1017 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What is the efficiency of GL Solar HY-NT10/54GDF modules and how do they compare to the market? The HY-NT10/54GDF modules achieve a panel efficiency of 22.3–23.3%, placing them among the top-performing N-type TOPCon panels currently available. Peak power reaches 465 Wp, and a low temperature coefficient of Pmax at approximately -0.29%/°C keeps power losses minimal on hot days. For comparison, older PERC modules of the same format typically stay below 21% efficiency with a less favorable temperature coefficient. ### Does the bifacial design of the HY-NT10/54GDF actually pay off on a rooftop installation in Poland? The greatest bifacial gains come from ground-mounted systems over light-colored surfaces — white gravel, EPDM or TPO flat-roof membranes, or snow cover can add 5–15% to annual yield. On a standard pitched roof the rear-side contribution is smaller due to limited albedo, but bifaciality never reduces performance — at worst the module simply operates as a standard monofacial panel. ### How do HY-NT10/54GDF panels perform on the cloudy days typical of the Polish climate? N-type TOPCon technology delivers better low-light performance than older PERC cells by capturing diffuse irradiance more effectively. Meaningful power generation begins at irradiance levels as low as approximately 200 W/m², and the power curve remains more linear at low irradiance. This is particularly relevant in Poland, where over 60% of days annually have cloud cover exceeding 50%. ### What is SMBB technology in the HY-NT10/54GDF series and why does it matter? SMBB (Super Multi Busbar) replaces conventional 5–6 wide busbars with multiple thin round wires (typically 12–18). This shortens the current path within each cell, reducing internal resistance and resistive losses. Combined with half-cut cell design, it also limits the impact of microcracks — a cracked half-cell does not disable the entire string, resulting in better long-term power stability. ### What warranty comes with GL Solar HY-NT10/54GDF panels and what exactly does it cover? The HY-NT10/54GDF series carries a 30-year product warranty covering physical defects and workmanship, along with a 30-year linear power warranty. Annual degradation after the first year of operation is below 0.4%, meaning the module will retain at least 87.4% of its rated power after 30 years. This is among the longest and most favorable warranty terms available in the photovoltaic module market. ### Are HY-NT10/54GDF modules suitable for commercial solar farms in harsh environmental conditions? Yes. Dual-glass construction and certified resistance to salt mist, ammonia, sand, and dust make the HY-NT10/54GDF well suited for demanding locations — coastal, agricultural, and industrial sites. Anti-PID protection guards against potential-induced degradation in high-humidity environments. The 30-year linear power warranty also supports long-horizon financial modeling for utility-scale projects. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HY-SOLAR-NT10-54GDF445-465W-20mm-HY-EN-4333868075f2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +30 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +40 W, cooler, +1.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +35 W, cooler, +1.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +35 W, lighter, +1.2 pp | --- Source: https://comparepv.com/panel/gl-solar-hy-nt10-54gdf 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.