--- title: "Sunova TS-BGT54(420) 420W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT54(420) 420W solar panel. Specs: 21.51% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt54-420" updated: 2026-09-11 --- # Sunova TS-BGT54(420) Middle of its segment, heavy for its output 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT54(420) - **Series:** TS-BGT54 All Black (420–440 W) - **Rated power:** 420 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 420 W | 435 W | Weak - bottom 16% | | | Module efficiency | 21.51% | 22.00% | Weak - bottom 20% | 7,894 | | Power density | 215.1 | 220.2 | Weak - bottom 19% | 7,882 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 24.2 kg | 22.0 kg | Weak - bottom 10% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.51% | 22.00% | Weak - bottom 20% | 7,894 | | Power density | 215.1 | 220.2 | Weak - bottom 19% | 7,882 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 57.6 | 51.4 | Weak - bottom 10% | 11,319 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **57.6 kg per kWp** - Bottom 10% of the TOPCon 400-450 W segment, against a median of 51.4. - **215.1 watts per square metre** - Bottom 19% of the TOPCon 400-450 W segment, against a median of 220.2. - **21.51% module efficiency** - Bottom 20% of the TOPCon 400-450 W segment, against a median of 22.00%. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 420 W - **Efficiency:** 21.51 % - **Voltage at Pmax (Vmp):** 31.91 V - **Current at Pmax (Imp):** 13.16 A - **Open-circuit voltage (Voc):** 37.58 V - **Short-circuit current (Isc):** 13.93 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 24.2 kg - **Area:** 1.95 m2 - **Power density:** 215.1 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:** 367 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7894 of 14005 | | Power density | 7882 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 11319 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova TS-BGT54 All Black (420-440 W) series is a fully black, bifacial module that combines premium aesthetics with a higher energy yield in typical rooftop conditions. It utilizes **N-type cells**, which ensure the panel maintains its parameters over time and operates more stably at high temperatures, resulting in predictable energy production over the years. A key advantage is the **dual-glass construction** - the glass on both sides increases resistance to micro-cracks and harsh environmental conditions, while also supporting bifacial operation. The module utilizes **bifaciality**, allowing it to "capture" energy from reflected light (e.g., from a reflective membrane, metal, or gravel), which is particularly useful when the roof surface limits the number of panels. For installers, **hot-spot protection** is also important, reducing the risk of losses due to partial shading. This is a good choice for modern homes, carports, and small commercial installations, where aesthetics and durability are equally important. ## Notable figures - Efficiency of 21.5% matches the \*\*TOPCon 400-450W\*\* median - Power density of 215.1 W/m² is 5.1 W/m² below \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - needs more roof space - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 400-450W\*\* median - At 24.2 kg, this panel is 2.2 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How much extra energy does bifaciality really provide in Sunova TS-BGT54 All Black panels? The additional yield depends on the surface beneath the panels - light-colored gravel, roofing membrane, or white metal sheeting reflect light that reaches the rear side of the module. Under typical rooftop conditions, you can expect a few percent more energy than with a monofacial panel, without adding more modules to the roof. The gain is highest when panels are elevated or mounted over bright, reflective surfaces. ### What warranty comes with Sunova TS-BGT54 All Black panels? The manufacturer offers a 15-year product warranty along with a 30-year power output warranty. This means the module should maintain its guaranteed power level over three decades, while any material or manufacturing defects during the first 15 years are covered by the manufacturer. This is comparable to premium-tier offerings in the N-type module segment. ### Do Sunova TS-BGT54 All Black panels perform well in high summer roof temperatures? Yes, the N-type TOPCon cells used in this series have a lower temperature coefficient than older P-type cells, meaning less power loss as panels heat up on hot days. As a result, summer energy production remains more stable and predictable on hot rooftops compared to cheaper modules built on older cell technology. ### Is Sunova a Tier 1 manufacturer, and does that matter when choosing panels? Sunova is not currently listed as a Tier 1 manufacturer under the Bloomberg NEF classification, which mainly reflects bank financing criteria rather than product quality itself. The TS-BGT54 All Black series uses proven TOPCon technology and a dual-glass build, so in terms of technical performance and durability it competes with modules from higher-ranked manufacturers, though it's worth checking when applying for installation financing. ### Are Sunova All Black panels suitable for roofs with limited surface area? Yes, this is one of the series' key advantages. With module power up to 440 Wp plus the extra yield from bifacial operation, you can achieve higher system power with fewer panels than with older, monofacial modules. This makes it a good fit for small single-family home roofs, carports, and small commercial installations. ### Does the dual-glass construction in TS-BGT54 panels improve resistance to mechanical damage? Yes, glass on both sides of the module, instead of a typical plastic backsheet, significantly increases resistance to cell microcracks, moisture ingress, and long-term UV degradation. This construction also withstands larger temperature swings and snow loads better, contributing to a longer service life under harsh weather conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/thornova-ts-bgt54-420-440-all-black-v2023-11-20-b6202257a4fd.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +45 W, lighter, +2.3 pp | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | +45 W, cooler, +2.3 pp | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | +50 W, +2.2 pp, +10 yr warranty | | [AIKO AIKO-A470-MAH54Mb](https://comparepv.com/panel/aiko-aiko-a470-mah54mb) | 470 W | +50 W, cooler, +2.1 pp | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | +40 W, lighter, +2.1 pp | | [TCL Zhonghuan HSM-BD54-LA470](https://comparepv.com/panel/tcl-zhonghuan-hsm-bd54-la470) | 470 W | +50 W, cooler, +2.1 pp | | [Sunova TS-BW54(400)](https://comparepv.com/panel/sunova-ts-bw54-400) | 400 W | Hotter, -1.0 pp, -5 yr warranty | | [Sunova TS-BG54(405)-X](https://comparepv.com/panel/sunova-ts-bg54-405-x) | 405 W | -15 W, hotter, -0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +75 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +85 W, cooler, +3.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +70 W, cooler, +3.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +80 W, cooler, +3.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +80 W, cooler, +3.0 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt54-420 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.