--- title: "Sunova TS-BGT54(445) 445W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT54(445) 445W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt54-445" updated: 2026-09-11 --- # Sunova TS-BGT54(445) Efficiency leader, weak in heat 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT54(445) - **Series:** Tangra™ S Pro C Black - **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 | 22.80% | 21.91% | Strong - top 1% | 2,714 | | Power density | 227.9 | 218.3 | Strong - top 2% | 2,790 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | 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 | 22.80% | 21.91% | Strong - top 1% | 2,714 | | Power density | 227.9 | 218.3 | Strong - top 2% | 2,790 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | Weight per kWp | 54.4 | 51.2 | Typical | 8,683 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.80% module efficiency** - Top 1% of the N-type 400-450 W segment, against a median of 21.91%. Ranked 2,714th in the whole database. - **227.9 watts per square metre** - Top 2% of the N-type 400-450 W segment, against a median of 218.3. Ranked 2,790th in the whole database. ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 25% of the N-type 400-450 W segment, against a median of -0.290. - **Best for:** Residential, hot-climate and cold-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 33.39 V - **Current at Pmax (Imp):** 13.33 A - **Open-circuit voltage (Voc):** 39.35 V - **Short-circuit current (Isc):** 13.96 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:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.2 kg - **Area:** 1.95 m2 - **Power density:** 227.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 384 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2790 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 8683 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova Tangra S Pro C Black series redefines the standards of aesthetics and performance in modern photovoltaic systems. Utilizing advanced **N-type TOPCon cell** technology, these modules eliminate the problem of rapid power degradation, ensuring stable energy yields for investors for many years. Their key advantage over standard solutions is exceptional efficiency in low-light conditions, which allows the installation to produce electricity effectively even on cloudy days or at low sunlight angles. Deep, uniform **Full Black** aesthetics make the panels an integral part of the architecture, blending perfectly with dark roof coverings without visible silver frames or cells. The solid frame construction and **high resistance to mechanical loads** ensure this series handles extreme weather phenomena, such as violent wind or heavy snow, perfectly. This is a solution created for demanding home users for whom the priority is **maximizing production from a small roof area** while maintaining the highest operational standards for the modules. What sets them apart from the competition is an optimized temperature balance that prevents cells from overheating and performance drops on hot days, guaranteeing a faster return on investment in the Polish climate. ## Notable figures - At 22.8% efficiency, this panel is 0.9pp above typical \*\*N-type 400-450W\*\* modules (median: 21.9%) - At 227.9 W/m² power density, this panel generates 9.6 W/m² more per unit area than \*\*N-type 400-450W\*\* median (218.3 W/m²) - Temperature coefficient of -0.30%/°C matches the \*\*N-type 400-450W\*\* median - Weight of 24.2 kg is 2.2 kg above \*\*N-type 400-450W\*\* median (22.0 kg) - verify structural support - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof ## Questions ### What is the maximum power output of the Sunova Tangra S Pro C Black panel? The Tangra S Pro C Black series reaches up to 450 Wp, with N-type TOPCon cell efficiency of around 22.5%. That is a strong result for a compact 1762x1134 mm module, allowing more energy yield per square meter of roof compared to older P-type panels of similar size. ### What does bifacial technology offer in the Tangra S Pro C Black panels? Thanks to the dual-glass bifacial construction, the panel also captures light reflected off the surrounding surface through its rear side. On a bright roof, white gravel, or ground-mount installation, this can boost energy production by up to several percent compared to a standard monofacial module, with the exact gain depending on surface color and mounting height. ### What warranty comes with Sunova Tangra S Pro C Black panels? The manufacturer offers a 15-year product warranty covering material and workmanship defects, plus a 30-year power output warranty, which is standard for modern N-type TOPCon modules. This means that even after 30 years the panel should still generate a significant share of its original power, supporting a longer and more predictable return on investment. ### Are the Sunova Full Black panels suitable for a dark sloped roof? Yes, the Tangra S Pro C Black series is designed with aesthetics in mind — a uniform black frame, black backsheet, and no visible silver components make it blend well with dark roof tiles or metal roofing. The frame is certified for wind loads up to 2400 Pa and snow loads up to 5400 Pa, confirming its suitability for typical sloped-roof conditions in Poland. ### Do Sunova Tangra S Pro C Black panels perform well in low temperatures and low irradiance? Yes, these modules feature a low power temperature coefficient, which limits performance losses on hot days while also supporting stable output in winter. Additionally, N-type TOPCon cell technology improves behavior under low irradiance, so the system still generates electricity on cloudy days or at the low sun angles typical of Polish autumn and winter. ### Who manufactures Sunova panels, and are they a Tier 1 manufacturer? The Tangra S Pro C Black panels are made by Sunova Solar Technology, a Chinese company specializing in N-type modules. Sunova is not currently listed as a Tier 1 manufacturer under BloombergNEF's classification, though this doesn't directly affect the module's technical quality — it's worth checking this criterion only if project financing specifically requires Tier 1 panels. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Tangra_S_Pro_C_Black_430-450Wp-3a4e6b2c9519.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +1.7 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +1.7 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +1.5 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +1.5 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +1.5 pp | | [Sunova TS-BW54(400)](https://comparepv.com/panel/sunova-ts-bw54-400) | 400 W | -45 W, -2.3 pp, -5 yr warranty | | [Sunova TS-BG54(405)-X](https://comparepv.com/panel/sunova-ts-bg54-405-x) | 405 W | -40 W, hotter, -2.1 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +1.9 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt54-445 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.