--- title: "Trina Solar TSM-NEG19R.20-635 635W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-NEG19R.20-635 635W solar panel. Specs: 23.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg19r-20-635" updated: 2026-09-11 --- # Trina Solar TSM-NEG19R.20-635 Space saver, no clear weak spot 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-NEG19R.20-635 - **Series:** Vertex N (TSM-NEG19R.20) - **Rated power:** 635 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 635 W | 620 W | Strong - top 16% | | | Module efficiency | 23.50% | 22.80% | Strong - top 10% | 716 | | Power density | 235.1 | 227.7 | Strong - top 9% | 741 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 30.0 kg | 32.7 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.50% | 22.80% | Strong - top 10% | 716 | | Power density | 235.1 | 227.7 | Strong - top 9% | 741 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 47.2 | 53.1 | Strong - top 12% | 1,596 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **235.1 watts per square metre** - Top 9% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 741st in the whole database. - **23.50% module efficiency** - Top 10% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 716th in the whole database. - **47.2 kg per kWp** - Top 12% of the TOPCon 600-650 W segment, against a median of 53.1. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 23.50 % - **Voltage at Pmax (Vmp):** 42.30 V - **Current at Pmax (Imp):** 15.02 A - **Open-circuit voltage (Voc):** 50.50 V - **Short-circuit current (Isc):** 15.94 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:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 30.0 kg - **Area:** 2.70 m2 - **Power density:** 235.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 555 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 716 of 14005 | | Power density | 741 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 1596 of 14005 | | Warranty | 21 of 14005 | ## About this series Trina Solar's Vertex N (TSM-NEG19R.20) series is designed for maximum energy return in real-world operating conditions, especially where stable production and predictable return on investment matter most. The key advantage lies in the **N-type cells in TOPCon technology**, which maintain their parameters better over time and are less sensitive to typical module aging mechanisms. In practice, this means a more consistent energy yield year after year and lower risk of disappointing results from the installation. The adopted **bifacial glass-glass construction** allows for utilizing reflected light, helping to increase energy output without expanding the surface area. Furthermore, the **low temperature sensitivity** ensures efficient operation on scorching days, unlike many standard panels that lose part of their performance. Vertex N also features solutions enhancing performance under scattered light, making it ideal for less-than-ideal exposure conditions. This is an excellent choice for commercial installations and PV farms, where **higher yield from the same surface area**, long-term durability, and controlled energy costs over a long horizon are crucial. ## Notable figures - 23.5% module efficiency - 0.7pp better than the \*\*TOPCon 600-650W\*\* median of 22.8% - At 235.1 W/m² power density, this panel generates 7.4 W/m² more per unit area than \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - 30.0 kg weight - 2.7 kg lighter than \*\*TOPCon 600-650W\*\* median (32.7 kg), reducing installation effort - #716 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What is TOPCon technology used in Trina Vertex N panels and how does it differ from PERC? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology where an additional tunnel oxide layer reduces carrier recombination and boosts efficiency compared to older P-type PERC cells. N-type cells degrade more slowly, have a lower LID/LeTID coefficient, and retain power better over the years, resulting in more stable and predictable energy yield throughout the warranty period. ### What is the maximum power output and efficiency of the Trina Vertex N TSM-NEG19R.20 panel? The most powerful variant in this series reaches up to 635 Wp rated power at a module efficiency of around 23.5%. A higher single-panel power output means fewer modules are needed to reach a given system size, which lowers mounting structure, cabling, and installation labor costs - especially noticeable in commercial installations and utility-scale PV farms. ### Is the Trina Vertex N TSM-NEG19R.20 a bifacial (dual-sided) panel? No - the variant labeled TSM-NEG19R.20 generates energy only from the front side of the module. Trina Solar offers a separate bifacial version of this platform - TSM-NEG19RC.20 - with a glass-glass construction that also captures light reflected off the ground. Both versions share the same TOPCon cells but differ in construction and how they generate energy, so it's worth checking the exact model code before purchasing. ### What warranty comes with the Trina Vertex N TSM-NEG19R.20 series? Trina Solar backs the Vertex N series with a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This longer power warranty compared to older PERC generations reflects the better long-term stability of N-type TOPCon cells, translating into a lower annual degradation rate and greater confidence in long-term return on investment. ### Do Vertex N panels perform well on hot days and at high temperatures? Yes, Vertex N modules have a low power temperature coefficient, typical of TOPCon technology. This means a smaller performance drop when the panel surface heats up significantly in summer compared to standard PERC modules. In practice, this results in more stable energy production on hot, sunny days, when many conventional panels lose part of their output. ### What installations is the Trina Vertex N TSM-NEG19R.20 series best suited for - rooftops or PV farms? Due to the module's large format (132 cells, up to 635 Wp) and a design optimized for low string voltage and high string power, the Vertex N series is intended primarily for commercial, industrial, and utility-scale PV farm installations, where maximizing yield per surface area and reducing BoS costs matter most. For residential sloped roofs, Trina offers lighter, smaller-format series such as Vertex S. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dt-m-0077-g-en-c-datasheet-vertex-neg19r-20-2025-a-d4b9706d7f7e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +1.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, cooler, +1.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +35 W, cooler, +1.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +35 W, cooler, +1.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.3 pp | | [Trina Solar TEB-NEGA6ND.48-420 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-420-silver-grey-ral9018) | 420 W | -215 W, -8.0 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-425 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-425-silver-grey-ral9018) | 425 W | -210 W, -7.8 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-430 (Silver Grey, RAL9018)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-430-silver-grey-ral9018) | 430 W | -205 W, -7.6 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-545 (Green, RAL6001)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-545-green-ral6001) | 545 W | -90 W, -3.3 pp, -5 yr warranty | | [Trina Solar TEB-NEGA6ND.48-550 (Green, RAL6001)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega6nd-48-550-green-ral6001) | 550 W | -85 W, -3.2 pp, -5 yr warranty | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +65 W, heavier, +1.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, heavier, +1.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +35 W, cooler, +1.3 pp | --- Source: https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg19r-20-635 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.