--- title: "Sunova TS-BBT54(505)-G11 505W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BBT54(505)-G11 505W solar panel. Specs: 22.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bbt54-505-g11" updated: 2026-09-11 --- # Sunova TS-BBT54(505)-G11 Solid all-round for its segment 140 panels in the segment N-type 500-550 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BBT54(505)-G11 - **Series:** Tangra M HD Black - **Rated power:** 505 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 500-550 W (140 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 505 W | 520 W | Weak - bottom 21% | | | Module efficiency | 22.70% | 22.54% | Typical | 3,307 | | Power density | 227.1 | 225.3 | Typical | 3,312 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.0 kg | 26.2 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.70% | 22.54% | Typical | 3,307 | | Power density | 227.1 | 225.3 | Typical | 3,312 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 47.5 | 50.0 | Typical | 1,742 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential and BIPV. ## Specification ### Electrical - **Rated power (Pmax):** 505 W - **Efficiency:** 22.70 % - **Voltage at Pmax (Vmp):** 33.50 V - **Current at Pmax (Imp):** 15.08 A - **Open-circuit voltage (Voc):** 40.40 V - **Short-circuit current (Isc):** 15.89 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:** 24.0 kg - **Area:** 2.22 m2 - **Power density:** 227.1 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:** 441 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3307 of 14005 | | Power density | 3312 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 1742 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova Tangra M HD Black series is a technologically advanced solution that redefines the standards of performance and aesthetics in the residential photovoltaic installation segment. The use of innovative **N-type TOPCon cell technology** guarantees users significantly higher energy yields and minimal degradation over time, which directly translates into the financial stability of the investment. Thanks to the **High Density construction**, which involves a denser cell layout, these modules offer maximum power from a limited roof area, solving the problem of space shortages when designing high-efficiency systems. This series stands out from the competition with its **deep Full Black aesthetics**, where the black frame, black backsheet, and dark cells create a cohesive, luxurious whole that perfectly blends with modern architecture. A key advantage is also its **excellent performance in diffused light conditions** and low sensitivity to high temperatures, allowing for efficient power production year-round, regardless of the vagaries of the Polish weather. Sunova Tangra M HD Black is a product dedicated to demanding investors who seek uncompromising quality, **exceptional resistance to the PID phenomenon**, and durability confirmed by rigorous tests that exceed standard market requirements. Choosing this series is an investment in the highest system operating culture and a modern look for the property. ## Notable figures - Efficiency of 22.7% matches the \*\*N-type 500-550W\*\* median - Power density of 227.1 W/m² matches the \*\*N-type 500-550W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*N-type 500-550W\*\* median - 24.0 kg weight - 2.2 kg lighter than \*\*N-type 500-550W\*\* median (26.2 kg), reducing installation effort - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### How does the Sunova Tangra M HD Black panel differ from standard monofacial modules? Tangra M HD Black is a bifacial module that additionally captures energy reflected off the roof, ground, or other bright surfaces on its rear side. In practice, this can deliver up to several percent higher annual energy yield compared to classic monofacial panels, using the same roof area and installation setup. ### What benefit does N-type TOPCon cell technology bring to the Tangra M HD Black series? N-type TOPCon cells do not suffer from the natural LID (Light Induced Degradation) that affects classic P-type cells within the first hours of operation. As a result, the panel produces more energy from day one and degrades more slowly over the years, leading to higher total energy output over the system's lifetime. ### What is the product and power warranty for the Sunova Tangra M HD Black series? The manufacturer provides a 15-year product warranty along with a 30-year linear power output warranty. This means that after 30 years the panel should still deliver a significant share of its original rated power, which is an important factor when calculating the long-term return on investment of a PV system. ### Do Sunova Tangra M HD Black 505 Wp panels perform well under low light and cloudy conditions? Yes, the High Density design combined with N-type cells allows the module to work efficiently under diffuse light, common on overcast days typical of the Polish climate. The panel maintains stable energy production throughout most of the year, not just under full sun, resulting in a more even production profile across the seasons. ### Does high summer temperature reduce the performance of Tangra M HD Black panels? These panels feature a low temperature coefficient of power, meaning less performance drop at high panel temperatures on hot days compared to standard P-type modules. This allows the installation to maintain higher efficiency during summer, when irradiance is at its peak but roof surface temperatures also rise. ### Why is the Full Black version of the Tangra M HD Black more expensive than standard black panels? The Full Black version combines a black frame, black backsheet, and dark cells into one cohesive, aesthetic design, which requires additional manufacturing steps compared to standard modules with a white backsheet or silver frame. This version is particularly popular for pitched roofs on single-family homes, where the visual appearance of the roof matters to the investor. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Tangra_M_HD_Black_TS-BBT54485-505-G11_v20241226ca-4914685d9816.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +2.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +2.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +50 W, cooler, +1.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +1.8 pp | | [Sunova TS-BBT54(485)-G11](https://comparepv.com/panel/sunova-ts-bbt54-485-g11) | 485 W | -20 W, -0.9 pp | | [Sunova TS-BBT54(490)-G11](https://comparepv.com/panel/sunova-ts-bbt54-490-g11) | 490 W | -15 W, -0.7 pp | | [Sunova TS-BBT54(495)-G11](https://comparepv.com/panel/sunova-ts-bbt54-495-g11) | 495 W | -10 W, -0.4 pp | | [Sunova TS-BBT54(500)-G11](https://comparepv.com/panel/sunova-ts-bbt54-500-g11) | 500 W | Very close match | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +55 W, cooler, +2.1 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +45 W, lighter, +1.7 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +35 W, cooler, +1.7 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +35 W, cooler, +1.7 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +40 W, heavier, +1.6 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +40 W, cooler, +1.5 pp | --- Source: https://comparepv.com/panel/sunova-ts-bbt54-505-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.