--- title: "Trina Solar TSM-NEG19RC.20-635 635W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-NEG19RC.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-neg19rc-20-635" updated: 2026-09-11 --- # Trina Solar TSM-NEG19RC.20-635 Space saver, no clear weak spot 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-NEG19RC.20-635 - **Series:** Vertex N TSM-NEG19RC.20 - **Rated power:** 635 W - **Cell technology:** TOPCon - **Bifacial:** yes ## 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) | 33.0 kg | 32.7 kg | Typical | | | 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 | 52.0 | 53.1 | Typical | 5,408 | | 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. - **Best for:** Utility-scale, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 23.50 % - **Voltage at Pmax (Vmp):** 40.84 V - **Current at Pmax (Imp):** 15.55 A - **Open-circuit voltage (Voc):** 49.10 V - **Short-circuit current (Isc):** 16.44 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 - **Bifacial:** yes - **Bifacial gain:** 20.00 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.0 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 | 5408 of 14005 | | Warranty | 21 of 14005 | ## About this series The Vertex N TSM-NEG19RC.20 is built around n-type cells and Trina Solar's patented i-TOPCon technology, pairing high unit power with low long-term degradation. The series relies on **n-type TOPCon cells** and a **bifacial** design, allowing the panel to capture extra energy from light reflected onto its rear side, which meaningfully boosts the energy yield of an installation, especially on bright roof surfaces or ground-mount systems. The 210 mm cell platform combined with a **half-cut** cell layout reduces resistive losses and improves resilience to partial shading. A key advantage is the **low-voltage design**, which enables longer strings without exceeding inverter voltage limits, cutting down the number of required installation components and lowering BoS costs. This translates directly into a reduced LCOE for the overall investment. The panel suits both large-scale solar farms and commercial projects where maximizing power output per available surface area matters, along with a predictable, **long-term power warranty**. It's a solid choice for investors seeking high performance while keeping operating costs low over many years of system operation. ## Notable figures - At 23.5% efficiency, this panel is 0.7pp above typical \*\*TOPCon 600-650W\*\* modules (median: 22.8%) - Power density of 235.1 W/m² packs 7.4 W/m² more into the same footprint vs \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #716 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output and efficiency of the Trina Vertex N TSM-NEG19RC.20 panel? The highest-power version of this series reaches up to 650 Wp with module efficiency of up to 24.1%. This high unit power comes from the 210 mm platform, 132 half-cut cells, and n-type i-TOPCon technology. As a result, more energy can be generated from the same roof or ground area compared to classic PERC modules of similar size. ### How do the n-type TOPCon cells in Vertex N differ from classic PERC cells? N-type TOPCon cells have lower annual degradation (0.40% after the first year versus roughly 0.55% for PERC) and handle high temperatures better thanks to a -0.29%/°C power temperature coefficient. In practice this means higher and more stable energy yield over the long term, which lowers the levelized cost of energy (LCOE) compared to older technologies. ### What does the bifacial design of the Vertex N TSM-NEG19RC.20 add, and is it worth the extra cost? The bifacial construction lets the rear side of the module capture light reflected off the ground, roof, or snow, which can boost energy yield by several to well over ten percent depending on surface albedo. It's especially worth choosing for light-colored roofs, gravel ground-mount surfaces, or racking systems with high ground clearance. ### What warranty comes with the Trina Vertex N TSM-NEG19RC.20 solar panels? The manufacturer provides a 12-year product warranty and a 30-year linear power warranty, guaranteeing at least 87.4% of rated power retained after that period. The first year is covered by a 99% power output guarantee. This is standard for premium n-type modules and one of the longer coverage periods currently available on the PV market. ### Is the Vertex N TSM-NEG19RC.20 suitable for large solar farms and long strings? Yes, the low-voltage design of this series allows for longer strings without exceeding inverter voltage limits, reducing the number of BoS components needed, shortening cabling, and lowering installation costs. Combined with a unit power of up to 650 Wp, the panel is a popular choice for large ground-mount farms and commercial or industrial projects. ### Does the Vertex N TSM-NEG19RC.20 perform well in high temperatures and strong sunlight? Yes, thanks to its low power temperature coefficient of -0.29%/°C, the module loses less output as operating temperature rises compared to classic PERC panels (typically around -0.35%/°C). This is a significant advantage in hot climates and on large ground-mount farms, where panels reach high operating temperatures in summer, and stable power translates into predictable energy yield. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DT-M-0045-G-EN-K-Datasheet_Vertex_NEG19RC20_2025_D-dacdf94943cb.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, lighter, +1.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, lighter, +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, lighter, +1.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +35 W, lighter, +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, cooler, +1.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, cooler, +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-neg19rc-20-635 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.