--- title: "Trina Solar TSM-NEG20C.20-655 Solar Panel: Specs & Datasheet | ComparePV" description: "Trina Solar TSM-NEG20C.20-655 solar panel. Specs: 23.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg20c-20-655" image: "https://comparepv.com/og/panel/trina-solar-co-ltd-tsm-neg20c-20-655.png" updated: 2026-09-11 --- # Trina Solar TSM-NEG20C.20-655 Solid all-round for its segment 254 panels in the segment TOPCon 650-700 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-NEG20C.20-655 - **Series:** Vertex N (TSM-NEG20C.20 630–655W) - **Rated power:** 655 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 650-700 W (254 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 655 W | 665 W | Typical | | | Module efficiency | 23.10% | 22.40% | Typical | 1,617 | | Power density | 231.4 | 223.7 | Typical | 1,548 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 34.9 kg | 34.6 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.10% | 22.40% | Typical | 1,617 | | Power density | 231.4 | 223.7 | Typical | 1,548 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 53.3 | 53.1 | Typical | 7,232 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Utility-scale, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 655 W - **Efficiency:** 23.10 % - **Voltage at Pmax (Vmp):** 37.60 V - **Current at Pmax (Imp):** 17.43 A - **Open-circuit voltage (Voc):** 45.40 V - **Short-circuit current (Isc):** 18.39 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:** 120 - **Bifacial:** yes ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 34.9 kg - **Area:** 2.83 m2 - **Power density:** 231.4 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:** 572 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1617 of 14129 | | Power density | 1548 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 7232 of 14129 | | Warranty | 21 of 14129 | ## About this series Trina Solar's Vertex N TSM-NEG20C.20 (630-655W) series is designed for large-scale PV farms and commercial & industrial (C&I) projects, focusing on high power density on the mounting structure and predictable energy production over decades. The modules utilize **n-type i-TOPCon cells**, ensuring more stable performance and better resistance to common degradation mechanisms found in older technologies. In practice, this translates to more predictable energy gains and easier closing of project financial models. For EPC contractors and investors, low temperature sensitivity and good performance under weaker sunlight conditions are also crucial - this genuinely minimizes power losses on hot days and during transition periods. The Vertex N NEG20C.20 series supports a **long-term power warranty**, helping to reduce project risks and energy costs throughout its entire lifecycle. The Vertex N NEG20C.20 also stands out with **high system compatibility** for modern large-scale projects - where BOS costs, efficient logistics, and fast installation without compromising on quality are key. ## Notable figures - At 23.1% efficiency, this panel is 0.7pp above typical \*\*TOPCon 650-700W\*\* modules (median: 22.4%) - Power density of 231.4 W/m² packs 7.7 W/m² more into the same footprint vs \*\*TOPCon 650-700W\*\* median (223.7 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 650-700W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #1617 out of 14129 panels for efficiency in the database ## Questions ### What is n-type i-TOPCon cell technology used in the Trina Vertex N TSM-NEG20C.20 panels? i-TOPCon is an n-type cell technology featuring an additional passivation layer on the rear side that reduces carrier recombination and boosts module efficiency (over 23.1%). Compared to older p-type PERC cells, i-TOPCon shows a lower light-induced degradation (LID) and light and elevated temperature-induced degradation (LeTID) rate, resulting in higher and more stable energy yield throughout the system's operating lifetime. ### What warranty comes with the Trina Solar Vertex N TSM-NEG20C.20 series? The series is backed by a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty guaranteeing a high percentage of nominal power output even after three decades of operation. This level of coverage is typical for premium n-type modules and helps investors and EPCs model LCOE and project revenue more accurately over the full system lifetime. ### Are the Trina Vertex N TSM-NEG20C.20 panels suitable for a single-family home, or mainly for large-scale installations? The NEG20C.20 series is designed for solar farms and large-scale C&I installations rather than typical pitched residential roofs. Its large footprint (about 2172×1303 mm) and weight of nearly 35 kg require a suitably robust mounting structure, usually ground-mount or large flat/industrial roofs, where high power density per mounting area matters more than compact dimensions suited to small pitched-roof racking. ### What does bifacial mean for the Vertex N modules, and how much does it increase energy production? Vertex N NEG20C.20 modules are bifacial - they generate power from both the front and rear sides, capturing light reflected off the ground surface. The bifaciality factor is about 80±5%, which, depending on ground albedo, mounting height, and racking configuration, can boost annual energy yield by several to more than ten percent compared to comparable monofacial modules, at no extra installation cost. ### What are the dimensions and weight of the Trina Vertex N TSM-NEG20C.20 panel? The panel measures approximately 2172×1303×33 mm and weighs just under 35 kg. It's a large, heavy module optimized for power-to-area ratio (up to 655 W), designed for transport and installation in professional utility-scale projects. When planning the mounting structure and installation logistics, both the module's footprint and weight should be factored in, especially given the large quantities typically deployed on a solar farm. ### Do the Vertex N TSM-NEG20C.20 panels perform well in high temperatures and low-light conditions? Yes, n-type i-TOPCon cells have a more favorable power temperature coefficient than older p-type technologies, limiting output drops on hot days. The modules also perform well under low irradiance, such as early morning, evening, or overcast conditions, delivering a more stable and predictable annual energy yield regardless of weather conditions at the installation site. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dt-m-0041-g-en-f-datasheet-vertex-neg20c-20-2025-a-4a54973f344b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +45 W, cooler, +1.9 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +40 W, cooler, +1.8 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +1.7 pp | | [Trina Solar TSM-DEG20C.20-585W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-585w) | 585 W | -70 W, hotter, -2.4 pp | | [Trina Solar TSM-DEG20C.20-590W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-590w) | 590 W | -65 W, hotter, -2.3 pp | | [Trina Solar TSM-DEG20C.20-595W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-595w) | 595 W | -60 W, hotter, -2.1 pp | | [Trina Solar TSM-DEG20C.20-600W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-600w) | 600 W | -55 W, hotter, -1.9 pp | | [Trina Solar TSM-DEG20C.20-605W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-605w) | 605 W | -50 W, hotter, -1.7 pp | | [Trina Solar TSM-NEG20C.20-625](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-625) | 625 W | -30 W, -1.0 pp | | [Trina Solar TSM-NEG20C.20-630](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-630) | 630 W | -25 W, -0.8 pp | | [Trina Solar TSM-NEG20C.20-635](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-635) | 635 W | -20 W, -0.7 pp | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | Hotter, lighter, +0.9 pp | --- Source: https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg20c-20-655 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.