--- title: "Sunova TS-BB54(400) 400W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BB54(400) 400W solar panel. Specs: 20.48% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bb54-400" updated: 2026-09-11 --- # Sunova TS-BB54(400) Strong in heat, no clear weak spot 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BB54(400) - **Series:** TS-BB54 (All Black) - **Rated power:** 400 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 400 W | 410 W | Weak - bottom 9% | | | Module efficiency | 20.48% | 20.60% | Typical | 11,468 | | Power density | 204.8 | 206.2 | Typical | 11,370 | | Temperature coefficient | -0.330 | -0.350 | Strong - top 10% | 8,545 | | Weight (kg) | 21.5 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.48% | 20.60% | Typical | 11,468 | | Power density | 204.8 | 206.2 | Typical | 11,370 | | Temperature coefficient | -0.330 | -0.350 | Strong - top 10% | 8,545 | | Weight per kWp | 53.8 | 53.0 | Typical | 7,774 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.330 %/°C temperature coefficient** - Top 10% of the PERC 400-450 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 400 W - **Efficiency:** 20.48 % - **Voltage at Pmax (Vmp):** 31.42 V - **Current at Pmax (Imp):** 12.74 A - **Open-circuit voltage (Voc):** 37.18 V - **Short-circuit current (Isc):** 13.39 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.330 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.060 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 13.50 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 21.5 kg - **Area:** 1.95 m2 - **Power density:** 204.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 328 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11468 of 14005 | | Power density | 11370 of 14005 | | Temperature coefficient | 8545 of 14005 | | Weight | 7774 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Sunova TS-BB54 (All Black) series consists of modules designed for aesthetically pleasing roof installations, where a uniform, dark appearance is paramount. The **All Black** variant simplifies matching the panels to modern architecture and minimizes the visual "patchwork" effect on the roof. The use of **half-cut monocrystalline solar cells** helps to optimize module performance under partial shading and reduces internal losses, resulting in more stable production in real-world conditions. The TS-BB54 series is designed for **high resistance to typical environmental loads**, which is important in the Polish climate (wind, snow, temperature fluctuations). Another advantage is the availability of **bifacial** solutions within the TS-BB54 family, which can increase energy yield on roofs and ground-mounted structures. This is a good choice for single-family homes and small to medium-sized commercial installations, where a balance between appearance, reliability, and cost-effectiveness is important. ## Notable figures - Efficiency of 20.5% matches the \*\*PERC 400-450W\*\* median - At 204.8 W/m² power density, roof space requirements are typical for \*\*PERC 400-450W\*\* panels - At -0.33%/°C, hot weather performance is typical for \*\*PERC 400-450W\*\* panels - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface - In the top 82% for efficiency among all PERC panels ## Questions ### Is the Sunova TS-BB54 (All Black) series still available for purchase? The TS-BB54 (All Black) series has been discontinued and is no longer offered as a current model. Panels still on the market are typically remaining warehouse stock. Check current availability with a distributor and consider newer series from the manufacturer if the installation timeline extends further out. ### What warranty comes with Sunova TS-BB54 panels? The manufacturer provides a 15-year product warranty and a 25-year power output warranty. This means protection against material and manufacturing defects for 15 years, plus a guaranteed level of energy generation performance over a quarter century, which is standard for modern monocrystalline panels. ### How do bifacial TS-BB54 panels differ from standard single-sided modules? Bifacial panels in the TS-BB54 family generate power from both sides of the module, capturing light reflected off the ground surface. On bright roofs, white gravel, or ground-mounted installations, this can boost total energy yield by several to over ten percent compared to a monofacial panel of the same nominal power. ### Do TS-BB54 All Black panels look good on a sloped single-family home roof? Yes, the All Black variant was specifically designed for the aesthetics of sloped single-family home roofs. The uniform black frame and backsheet eliminate the patchwork effect seen with standard white-backed panels, letting the array blend into the building's architecture without sacrificing energy performance. ### What are half-cut cells in the Sunova TS-BB54 and what benefits do they provide? Half-cut cells are standard monocrystalline cells cut in half, which reduces resistive losses and improves module behavior under partial shading, such as from a chimney or antenna. In practice, this results in more stable energy production under real-world conditions, not just under laboratory STC test parameters. ### How does the TS-BB54 series handle snow and wind loads in Poland's climate? The TS-BB54 design was engineered for enhanced mechanical resistance to typical environmental loads, including wind and snow, which matters given Poland's variable weather conditions. Before purchasing, it's still worth verifying the exact load ratings in the datasheet of the specific production batch. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/thornova-ts-bb54-400-415-all-black-a3b5c8a0dda1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, +2.6 pp, +5 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, +2.6 pp, +5 yr warranty | | [Sunova TS-BG54(405)-X](https://comparepv.com/panel/sunova-ts-bg54-405-x) | 405 W | Heavier, +0.3 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +110 W, cooler, +4.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +95 W, cooler, +4.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +105 W, cooler, +4.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +90 W, cooler, +4.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +100 W, cooler, +4.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +100 W, cooler, +4.0 pp | --- Source: https://comparepv.com/panel/sunova-ts-bb54-400 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.