--- title: "Talesun TM3G48M-445W 445W Solar Panel - Specs & Review | ComparePV" description: "Talesun TM3G48M-445W 445W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/talesun-tm3g48m-445w" updated: 2026-09-11 --- # Talesun TM3G48M-445W Efficiency leader, no clear weak spot 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Talesun - **Model:** TM3G48M-445W - **Series:** TM3G48M (BIPRO, 96-cell, bifacial dual glass) - **Rated power:** 445 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) | 445 W | 435 W | Strong - top 8% | | | Module efficiency | 22.30% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.7 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% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.5 | 51.4 | Typical | 9,881 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.30% module efficiency** - Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%. - **Best for:** Commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 29.79 V - **Current at Pmax (Imp):** 14.94 A - **Open-circuit voltage (Voc):** 35.42 V - **Short-circuit current (Isc):** 15.83 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.043 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.7 kg - **Area:** 2.00 m2 - **Power density:** 222.7 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:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9881 of 14005 | | Warranty | 21 of 14005 | ## About this series The Talesun TM3G48M (BIPRO) series are bifacial modules with a 96-cell configuration, designed for reliable operation in demanding installation conditions. The key advantage is the combination of N-type TOPCon cell technology with a dual glass construction, resulting in lower degradation over time and better environmental resilience compared to many traditional modules with a rear film. The application of 16BB half-cut helps minimize internal losses and improves power output under low-light conditions, which is significant for real-world operation in Poland. This series is for investors seeking to extract more energy from the same surface area-particularly on ground-mounted systems, flat roofs, and installations where reflected light from the ground actually contributes to energy yield. Additionally, the modules feature high resistance to PID and a sealed component housing (e.g., junction box), facilitating the design of systems resilient to humidity, dust, and wind without concerns about performance degradation. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - Power density of 222.7 W/m² matches the \*\*TOPCon 400-450W\*\* median - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - Weight of 24.7 kg is 2.7 kg above \*\*TOPCon 400-450W\*\* median (22.0 kg) - verify structural support - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How much extra energy does the bifacial design of the Talesun TM3G48M generate? Thanks to the dual glass construction and rear-side generation, the module also captures light reflected from the ground. In practice this adds a bifacial gain of roughly a few up to around ten-plus percent compared to a standard monofacial panel, depending on mounting height, ground albedo (e.g., light gravel or snow), and tilt angle. The largest gains occur in ground-mount and flat-roof east-west installations. ### Is the Talesun TM3G48M suitable for flat roofs, or only ground-mount systems? The TM3G48M series performs well both on ground-mount arrays and flat roofs, where the panel sits with clearance above the surface so reflected light can reach the rear glass. On sloped roofs mounted flush to the surface, the bifacial gain will be minimal, but the panel still functions as a standard high-efficiency mono module. The rigid dual glass build also handles heavy snow and wind loads well. ### What warranty applies to the product and power output of the TM3G48M series? Talesun offers a 15-year product warranty and a 30-year linear power warranty, standard for its newer TOPCon module generation. First-year degradation is capped at around 1%, with subsequent annual degradation not exceeding roughly 0.4%, meaning the panel should retain over 87% of its original output after 30 years. ### How does TOPCon technology in the TM3G48M differ from older PERC cells? N-type TOPCon cells feature an additional thin passivating oxide layer that reduces electron recombination and lowers energy losses compared to conventional P-type PERC cells. This results in higher efficiency (the module reaches up to 455 Wp), better low-light performance, and slower degradation over time, meaningfully extending the system's productive lifespan. ### Are Talesun TM3G48M modules resistant to PID and moisture? Yes, the series offers high resistance to potential-induced degradation (PID), which matters in large arrays running at higher system voltages. The junction box also carries an IP68 rating, and combined with the dual glass construction it effectively shields the module interior from moisture, dust, and water vapor, reducing corrosion risk and preventing performance loss in harsh environments. ### How does the TM3G48M perform in cold winter conditions like in Poland? Solar panels, including the TM3G48M series, actually perform more efficiently at lower temperatures because cooler silicon reduces voltage losses. The half-cut cell design with 16 busbars further improves output under the diffuse, low-intensity light typical of Polish winters, while the rigid frame and glass backsheet handle snow load well, which matters when snow cover lingers on the module. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/bipro-tm3g48m-16bb-20240410-en-b49af8d2f58a.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, lighter, +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, lighter, +2.0 pp | | [Talesun TM3G48M-435W](https://comparepv.com/panel/talesun-tm3g48m-435w) | 435 W | -10 W, -0.5 pp | | [Talesun TM3G48M-440W](https://comparepv.com/panel/talesun-tm3g48m-440w) | 440 W | -0.3 pp | | [Talesun TM3G48M-450W](https://comparepv.com/panel/talesun-tm3g48m-450w) | 450 W | Very close match | | [Talesun TM3G48M-455W](https://comparepv.com/panel/talesun-tm3g48m-455w) | 455 W | +10 W, +0.5 pp | | [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, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/talesun-tm3g48m-445w 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.