--- title: "Sunova TS-BGT48(445)-G11 445W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT48(445)-G11 445W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt48-445-g11" updated: 2026-09-11 --- # Sunova TS-BGT48(445)-G11 Efficiency leader, no clear weak spot 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT48(445)-G11 - **Series:** Tangra S Pro HD - **Rated power:** 445 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 400-450 W (321 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 430 W | Strong - top 7% | | | Module efficiency | 22.30% | 21.91% | Strong - top 18% | 5,100 | | Power density | 222.7 | 218.3 | Strong - top 25% | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.2 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 21.91% | Strong - top 18% | 5,100 | | Power density | 222.7 | 218.3 | Strong - top 25% | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 54.4 | 51.2 | Typical | 8,683 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.30% module efficiency** - Top 18% of the N-type 400-450 W segment, against a median of 21.91%. - **222.7 watts per square metre** - Top 25% of the N-type 400-450 W segment, against a median of 218.3. - **Best for:** Residential, commercial, cold-climate and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 29.90 V - **Current at Pmax (Imp):** 14.89 A - **Open-circuit voltage (Voc):** 34.85 V - **Short-circuit current (Isc):** 16.00 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:** 96 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 24.2 kg - **Area:** 2.00 m2 - **Power density:** 222.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 0.40 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 392 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 8683 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova Tangra S Pro HD series is an advanced solution based on **N-type TOPCon technology**, which focuses on delivering maximum energy per square meter of surface area. The use of a **Dual Glass** construction significantly increases the modules' resistance to micro-cracks and extreme weather conditions, effectively solving the problem of premature system aging. These panels stand out for their excellent efficiency in low sunlight, offering stable yields even on cloudy days, which is crucial in the Polish latitude. Thanks to **exceptionally low annual degradation**, users can count on high electricity productivity for decades, which clearly distinguishes this series from standard older-type modules. This design is dedicated particularly to demanding residential projects and modern business installations, where **maximizing profitability** while maintaining the aesthetic appearance of the roof is what counts. Sunova Tangra S Pro HD eliminates the dilemma between durability and efficiency, combining both features in one refined product. Choosing this series is an investment in energy security and durability that stands the test of time much better than conventional alternatives, while offering **higher fire resistance** and mechanical strength. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*N-type 400-450W\*\* modules - Power density of 222.7 W/m² packs 4.4 W/m² more into the same footprint vs \*\*N-type 400-450W\*\* median (218.3 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*N-type 400-450W\*\* median - At 24.2 kg (2.2 kg above \*\*N-type 400-450W\*\* median of 22.0 kg), requires checking roof load capacity - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How does N-type TOPCon technology in Sunova Tangra S Pro HD panels differ from older P-type cells? N-type TOPCon cells have lower annual degradation rates and higher efficiency under low and diffuse light conditions compared to traditional P-type PERC cells. As a result, Tangra S Pro HD panels generate more energy on cloudy days and during morning and evening hours, translating into higher annual energy yield, especially in Poland's climate. ### Do bifacial Sunova Tangra S Pro HD panels require special mounting? Bifacial Tangra S Pro HD panels perform best on mounting setups that allow light reflection onto the rear side of the module, such as a light-colored roof, ground surface, or elevated installation on a flat roof. No dedicated inverters are required, but proper positioning and clearance from the surface can boost energy yield by several percent compared to monofacial panels. ### What warranty comes with Sunova Tangra S Pro HD panels? Sunova provides a 25-year product warranty along with a 30-year linear power output warranty, ensuring the panels maintain high performance over a long service life. This coverage aligns with current market standards for modern N-type panels and secures the investment in a photovoltaic installation. ### How much energy can I expect from a single 450 Wp Sunova Tangra S Pro HD panel? A 450 Wp panel can produce roughly 400 to 500 kWh annually, depending on sunlight exposure, tilt angle, and installation location in Poland. Thanks to the Dual Glass construction and TOPCon technology, these panels maintain high efficiency even at elevated ambient temperatures. ### Does the Dual Glass construction in Tangra S Pro HD improve resistance to mechanical damage and fire? Yes, the Dual Glass construction replaces the standard rear backsheet with a second glass layer, significantly increasing the panel's resistance to microcracks, moisture, and extreme weather conditions such as hail or strong wind. This design also improves the module's fire resistance rating, which is important for installations on residential and commercial rooftops. ### Is it worth choosing Sunova panels if the manufacturer isn't Tier 1 rated? Lack of Tier 1 status doesn't indicate lower technical quality, as it only reflects the manufacturer's scale of bank financing. Tangra S Pro HD panels use proven N-type TOPCon technology and Dual Glass construction, and the long manufacturer warranty (25/30 years) provides real investment protection regardless of Tier classification. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Tangra_S_Pro_HD_TS-BGT48435-450-G11_-_35mm-8835e762591f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, lighter, +2.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, lighter, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +2.0 pp | | [Sunova TS-BGT48(435)-G11](https://comparepv.com/panel/sunova-ts-bgt48-435-g11) | 435 W | -10 W, -0.5 pp | | [Sunova TS-BGT48(440)-G11](https://comparepv.com/panel/sunova-ts-bgt48-440-g11) | 440 W | -0.3 pp | | [Sunova TS-BGT48(450)-G11](https://comparepv.com/panel/sunova-ts-bgt48-450-g11) | 450 W | Very close match | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt48-445-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.