--- title: "Sunova TS-BGT54(485)-G11 485W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT54(485)-G11 485W solar panel. Specs: 21.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt54-485-g11" updated: 2026-09-11 --- # Sunova TS-BGT54(485)-G11 Middle of its segment, heavy for its output 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT54(485)-G11 - **Series:** Tangra M Pro HD - **Rated power:** 485 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (301 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 485 W | 470 W | Strong - top 23% | | | Module efficiency | 21.80% | 22.52% | Weak - bottom 12% | 7,022 | | Power density | 218.1 | 225.2 | Weak - bottom 12% | 6,998 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 27.5 kg | 23.7 kg | Weak - bottom 8% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.80% | 22.52% | Weak - bottom 12% | 7,022 | | Power density | 218.1 | 225.2 | Weak - bottom 12% | 6,998 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 56.7 | 49.5 | Weak - bottom 8% | 10,808 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **56.7 kg per kWp** - Bottom 8% of the N-type 450-500 W segment, against a median of 49.5. Ranked 10,808th in the whole database. - **21.80% module efficiency** - Bottom 12% of the N-type 450-500 W segment, against a median of 22.52%. - **218.1 watts per square metre** - Bottom 12% of the N-type 450-500 W segment, against a median of 225.2. - **Best for:** Commercial 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):** 485 W - **Efficiency:** 21.80 % - **Voltage at Pmax (Vmp):** 32.68 V - **Current at Pmax (Imp):** 14.85 A - **Open-circuit voltage (Voc):** 39.20 V - **Short-circuit current (Isc):** 15.77 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1961 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 27.5 kg - **Area:** 2.22 m2 - **Power density:** 218.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 424 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7022 of 14005 | | Power density | 6998 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 10808 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova Tangra M Pro HD series redefines performance standards by utilizing advanced **N-type cells in TOPCon technology**. This solution effectively eliminates the LID effect and significantly slows down module degradation over time, guaranteeing stable energy yields for decades. The **Double Glass** construction ensures extreme resistance to external factors such as moisture or mechanical loads, making this line an ideal choice for demanding industrial projects and photovoltaic farms. A key distinguishing feature of the series is its **high power density (HD)**, which allows for maximum utilization of the available mounting area while reducing system and cabling costs. These modules perform excellently in low-light conditions, and their **bifacial design** allows for a significant additional energy gain from radiation reflected from the ground. Sunova Tangra M Pro HD effectively solves the problem of limited space, offering parameters that until recently were reserved exclusively for the luxury segment. It is a product dedicated to investors seeking uncompromising reliability and the **lowest levelized cost of energy (LCOE)** throughout the entire installation lifecycle. Thanks to an innovative approach to cell architecture, this series distances itself from the competition, especially in terms of operating stability at high temperatures. ## Notable figures - Module efficiency of 21.8% is 0.7pp below average for \*\*N-type 450-500W\*\* panels (median: 22.5%) - Power density of 218.1 W/m² is 7.1 W/m² below \*\*N-type 450-500W\*\* median (225.2 W/m²) - needs more roof space - Temperature coefficient of -0.29%/°C matches the \*\*N-type 450-500W\*\* median - At 27.5 kg (3.8 kg above \*\*N-type 450-500W\*\* median of 23.7 kg), requires checking roof load capacity - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How does the N-type TOPCon technology in the Sunova Tangra M Pro HD differ from classic P-type panels? The N-type TOPCon cells used in the Tangra M Pro HD offer significantly lower initial degradation (no LID effect) and a slower power decline over the years compared to traditional P-type cells. They also handle high operating temperatures better, resulting in more stable energy yields on hot days and a lower LCOE over the system's lifetime. ### What warranty comes with the Sunova Tangra M Pro HD panels? The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means that after 30 years of operation, the panel should still deliver a guaranteed percentage of its nominal power, making this series appealing for long-term investment horizons. ### Does the bifacial design of the Tangra M Pro HD actually increase energy production? Yes, the bifacial construction allows the rear side of the module to capture light reflected off the ground, roof, or surrounding surfaces. Depending on the albedo of the mounting surface (e.g., light gravel, white roofing, snow), the additional energy gain can range from a few to over ten percent compared to a monofacial module of the same 505 Wp rated power. ### What type of installations is the Sunova Tangra M Pro HD series best suited for? Thanks to its Double Glass construction and high power density (HD), this series is designed primarily for large-scale solar farms and industrial installations, where maximizing available mounting space and withstanding harsh weather conditions matter most. The 505 Wp output combined with compact dimensions allows fewer modules to be used, reducing racking and cabling costs. ### Is Sunova a Tier 1 manufacturer, and does that matter when choosing solar panels? Sunova, headquartered in China, is not currently listed as a Tier 1 manufacturer under the Bloomberg NEF classification, which mainly reflects bank financing scale rather than technical quality. That said, it's worth verifying the local distributor, availability of warranty service, and certifications (IEC, TÜV) that confirm compliance with safety and quality standards before purchase. ### How does the Double Glass construction improve durability of the Tangra M Pro HD compared to standard backsheet modules? Double glass instead of a rear backsheet significantly increases the module's resistance to moisture, micro-cracks, and mechanical loads such as snow or wind, which is especially important for large ground-mounted installations exposed to harsh weather. This design also reduces the risk of laminate degradation over time, supporting the declared 30-year power warranty. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Tangra_M_Pro_HD_TS-BGT54485-505-G11_v20241226us-357038515095.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.7 pp | | [Sunova TS-BBT54(490)-G11](https://comparepv.com/panel/sunova-ts-bbt54-490-g11) | 490 W | Lighter | | [Sunova TS-BBT54(495)-G11](https://comparepv.com/panel/sunova-ts-bbt54-495-g11) | 495 W | +10 W, lighter, +0.5 pp | | [Sunova TS-BBT54(500)-G11](https://comparepv.com/panel/sunova-ts-bbt54-500-g11) | 500 W | +15 W, lighter, +0.7 pp | | [Sunova TS-BBT54(505)-G11](https://comparepv.com/panel/sunova-ts-bbt54-505-g11) | 505 W | +20 W, lighter, +0.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +75 W, cooler, +3.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +70 W, cooler, +2.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +65 W, lighter, +2.6 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +55 W, lighter, +2.6 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +55 W, lighter, +2.6 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +60 W, cooler, +2.5 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt54-485-g11 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.