--- title: "TCL Zhonghuan HSM-ND54-GR490 490W Solar Panel - Specs & Review | ComparePV" description: "TCL Zhonghuan HSM-ND54-GR490 490W solar panel. Specs: 22.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr490" updated: 2026-09-11 --- # TCL Zhonghuan HSM-ND54-GR490 Middle of its segment, heavy for its output 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** TCL Zhonghuan - **Model:** HSM-ND54-GR490 - **Series:** HSM-ND54-GR - **Rated power:** 490 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) | 490 W | 465 W | Strong - top 12% | | | Module efficiency | 22.00% | 22.52% | Weak - bottom 18% | 6,517 | | Power density | 220.3 | 225.2 | Weak - bottom 19% | 6,276 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 27.0 kg | 24.0 kg | Weak - bottom 15% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.00% | 22.52% | Weak - bottom 18% | 6,517 | | Power density | 220.3 | 225.2 | Weak - bottom 19% | 6,276 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.1 | 52.2 | Weak - bottom 15% | 9,526 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.1 kg per kWp** - Bottom 15% of the TOPCon 450-500 W segment, against a median of 52.2. - **22.00% module efficiency** - Bottom 18% of the TOPCon 450-500 W segment, against a median of 22.52%. - **220.3 watts per square metre** - Bottom 19% of the TOPCon 450-500 W segment, against a median of 225.2. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 490 W - **Efficiency:** 22.00 % - **Voltage at Pmax (Vmp):** 33.30 V - **Current at Pmax (Imp):** 14.72 A - **Open-circuit voltage (Voc):** 39.50 V - **Short-circuit current (Isc):** 15.67 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 - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 1961 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.0 kg - **Area:** 2.22 m2 - **Power density:** 220.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 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:** 428 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6517 of 14005 | | Power density | 6276 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9526 of 14005 | | Warranty | 21 of 14005 | ## About this series TCL Zhonghuan HSM-ND54-GR series photovoltaic panels utilize advanced N-type cell technology, which translates into significantly higher energy efficiency compared to standard P-type modules. The use of **TOPCon technology** allows for minimizing natural material degradation and achieving better yields in low-light conditions, which is crucial in the Polish climate. Thanks to its compact design based on 54 cells, this series is perfectly suited for residential rooftops where the priority is maximizing limited space while maintaining aesthetics. An innovative approach to rectangular cell architecture provides **higher power density**, which directly reduces installation costs and accelerates return on investment. What sets these modules apart from the competition is **exceptional resistance to LID and LeTID degradation**, guaranteeing stable power production over many years of use. Additionally, this series offers **the lowest temperature coefficient**, ensuring that the panels maintain high efficiency even during summer heat. Choosing the HSM-ND54-GR model is an investment in durability and measurable savings, eliminating typical problems associated with power drops of traditional cells in difficult operating conditions. ## Notable figures - Module efficiency of 22.0% is 0.5pp below average for \*\*TOPCon 450-500W\*\* panels (median: 22.5%) - At 220.3 W/m², this panel generates 4.8 W/m² less per unit area than \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - Weight of 27.0 kg is 3.0 kg above \*\*TOPCon 450-500W\*\* median (24.0 kg) - verify structural support - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof ## Questions ### How much power does the TCL Zhonghuan HSM-ND54-GR panel produce and what is its efficiency? The top variant in this series reaches up to 515 Wp with cell efficiency of up to 23.2%. This is achieved thanks to N-type TOPCon technology and a rectangular cell layout that increases power density, letting you get more energy from the same roof area compared to older P-type panels. ### Are HSM-ND54-GR panels bifacial, and is that worth it? Yes, this series uses a glass-glass, bifacial design that also captures light reflected from the ground or roof surface on the rear side. In practice this adds a few extra percent of annual yield, especially when mounted over light-colored surfaces, gravel, or racking that allows airflow and light beneath the module. ### What warranty comes with the TCL Zhonghuan HSM-ND54-GR series? The manufacturer offers a 25-year product warranty and a 30-year linear power output warranty. This means that even after three decades of operation, the panel is guaranteed to retain a high percentage of its nominal power, one of the longest coverage periods currently available in the solar market. ### Does this series perform well in cold weather and low-light conditions? Yes. N-type TOPCon technology has a low temperature coefficient, so the panel loses less output as module temperature rises compared to standard P-type cells. It also performs better under weak, diffused light, which matters in climates with many overcast days. ### How is TOPCon different from standard PERC panels? TOPCon is an N-type cell technology with an additional passivation layer that reduces electron recombination, resulting in higher efficiency than the widely used P-type PERC cells. This translates into more power per unit area, lower LID and LeTID degradation, and more stable energy output over the system's lifetime. ### Are the 54-cell HSM-ND54-GR panels suitable for a small residential roof? Yes, the compact design built around 54 rectangular cells was created for residential roofs with limited space. Its high power density means fewer panels are needed to reach the target system size, lowering installation costs and shortening install time while keeping the roof looking clean. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/68ff51a4c2425a14036e0624_TCL-TC-495515-54-Wht-GG-Com-dd35b2ef7881.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.5 pp | | [TCL Zhonghuan HSM-ND54-GR495](https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr495) | 495 W | +0.3 pp | | [TCL Zhonghuan HSM-BD60-LA500](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd60-la500) | 500 W | Cooler, lighter, +0.6 pp | | [TCL Zhonghuan HSM-ND54-GR500](https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr500) | 500 W | +10 W, +0.5 pp | | [TCL Zhonghuan HSM-BD60-LA505](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd60-la505) | 505 W | Cooler, lighter, +0.8 pp | | [TCL Zhonghuan HSM-ND54-GR505](https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr505) | 505 W | +15 W, +0.7 pp | | [TCL Zhonghuan HSM-BD60-LA510](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd60-la510) | 510 W | Cooler, lighter, +1.0 pp | | [TCL Zhonghuan HSM-ND54-GR510](https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr510) | 510 W | +20 W, +0.9 pp | | [TCL Zhonghuan HSM-BD60-LA515](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd60-la515) | 515 W | Cooler, lighter, +1.2 pp | | [TCL Zhonghuan HSM-ND54-GR515](https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr515) | 515 W | +25 W, +1.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +70 W, cooler, +2.8 pp | --- Source: https://comparepv.com/panel/tcl-zhonghuan-hsm-nd54-gr490 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.