--- title: "Trina Solar TSM-DEG20C.20-605W Solar Panel: Specs & Datasheet | ComparePV" description: "Trina Solar TSM-DEG20C.20-605W solar panel. Specs: 21.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-605w" image: "https://comparepv.com/og/panel/trina-solar-co-ltd-tsm-deg20c-20-605w.png" updated: 2026-09-11 --- # Trina Solar TSM-DEG20C.20-605W Solid all-round for its segment 217 panels in the segment PERC 600-650 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-DEG20C.20-605W - **Series:** Vertex (TSM-DEG20C.20) - **Rated power:** 605 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 600-650 W (217 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 605 W | 605 W | Typical | | | Module efficiency | 21.40% | 21.38% | Typical | 8,388 | | Power density | 213.8 | 213.8 | Typical | 8,416 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,846 | | Weight (kg) | 34.9 kg | 34.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.40% | 21.38% | Typical | 8,388 | | Power density | 213.8 | 213.8 | Typical | 8,416 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,846 | | Weight per kWp | 57.7 | 55.7 | Typical | 11,448 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Commercial and utility-scale. ## Specification ### Electrical - **Rated power (Pmax):** 605 W - **Efficiency:** 21.40 % - **Voltage at Pmax (Vmp):** 34.80 V - **Current at Pmax (Imp):** 17.39 A - **Open-circuit voltage (Voc):** 41.90 V - **Short-circuit current (Isc):** 18.48 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 34.9 kg - **Area:** 2.83 m2 - **Power density:** 213.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 514 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8388 of 14129 | | Power density | 8416 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 11448 of 14129 | | Warranty | 21 of 14129 | ## About this series Trina Solar Vertex Series (TSM-DEG20C.20) is designed for installations where maximum energy yield from a limited number of modules and real cost reduction in construction and cabling are key. The use of **large monocrystalline silicon cells in the 210 mm format** and **mono PERC cells** enables very high unit power without compromising daily performance. In practice, this translates to **better energy production under low-light conditions** and more stable operation in high heat, which is crucial for commercial and industrial installations. The Vertex TSM-DEG20C.20 also features a system-design approach - the **low-voltage concept** allows for longer strings, simplifying the design and helping to reduce BOS costs. These modules are primarily targeted at PV farms, large rooftops, and tracker projects, where their construction and compatibility with popular inverters and tracking systems provide **greater predictability and operational safety** over the long term. ## Notable figures - At 21.4% efficiency, this panel is on par with typical \*\*PERC 600-650W\*\* modules - At 213.8 W/m² power density, roof space requirements are typical for \*\*PERC 600-650W\*\* panels - At -0.34%/°C, hot weather performance is typical for \*\*PERC 600-650W\*\* panels - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces - In the top 59% for efficiency among all PERC panels ## Questions ### What is the maximum power output of the Trina Solar Vertex TSM-DEG20C.20 panel? The Vertex TSM-DEG20C.20 series delivers up to 605 Wp, achieved through large 210 mm silicon cells and monocrystalline PERC technology. The module has 120 cells, dimensions of approximately 2172x1303x33 mm, and an efficiency reaching 21.2%. This is one of the higher unit power ratings in the industrial module segment, allowing fewer panels to reach a given system capacity. ### How much extra energy does the bifacial design of the Vertex TSM-DEG20C.20 provide? The panel uses a glass-glass construction and generates power from its rear side as well, with a power bifaciality factor of roughly 70±5%. In practice this translates to an additional yield of several to over ten percent, depending on mounting height, ground albedo, and racking type. The effect is most pronounced over bright, reflective surfaces, making the module well suited to utility-scale PV farms and tracker-based installations. ### Is the Trina Solar Vertex TSM-DEG20C.20 series still available for purchase? No, the TSM-DEG20C.20 series has been discontinued and replaced by newer Trina Solar models, including the Vertex N series based on TOPCon technology. It can still be purchased through distributor stock while supplies last. Customers looking to expand an existing array with the same model should expect limited availability and verify compatibility with panels they already own. ### What warranty applies to the Vertex TSM-DEG20C.20 product and power output? Trina Solar provides a 12-year product warranty and a 30-year power output warranty, guaranteeing at least 84.95% of nominal power at the end of the period. This is standard for tier 1 industrial-grade modules. Despite the series being discontinued, the warranty remains valid and is honored by the manufacturer according to the terms in the warranty documentation. ### What does the Vertex TSM-DEG20C.20's low-voltage design concept mean for installers? Despite the module's high power output, per-panel operating voltage is kept moderate, allowing installers to build longer strings without exceeding inverter voltage limits. This reduces the number of combiner boxes, cable runs, and MC4 connectors needed, which meaningfully lowers BoS costs (cabling, mounting structures, protection devices) in large ground-mount and rooftop systems. ### Is the Vertex TSM-DEG20C.20 suitable for a residential roof or better suited to utility-scale PV farms? This series was designed primarily for utility-scale PV farms, large commercial roofs, and tracker installations, where its large format and glass-glass construction support longer string designs. On a typical sloped residential roof, the panel is often too large and heavy for standard roof trusses, so smaller series such as Vertex S are a better fit for residential use. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dt-m-0011-e-datasheet-vertex-deg20c-20-en-2024-a-2f86c9a67057.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +3.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.2 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, lighter, +3.2 pp | | [Trina Solar TSM-DEG20C.20-585W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-585w) | 585 W | -20 W, -0.7 pp | | [Trina Solar TSM-DEG20C.20-590W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-590w) | 590 W | -15 W, -0.6 pp | | [Trina Solar TSM-DEG20C.20-595W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-595w) | 595 W | -10 W, -0.4 pp | | [Trina Solar TSM-DEG20C.20-600W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-600w) | 600 W | Very close match | | [Trina Solar TSM-NEG20C.20-625](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-625) | 625 W | +20 W, cooler, +0.7 pp | | [Trina Solar TSM-NEG20C.20-630](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-630) | 630 W | +25 W, cooler, +0.9 pp | | [Trina Solar TSM-NEG20C.20-635](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-635) | 635 W | +30 W, cooler, +1.0 pp | | [Trina Solar TSM-NEG20C.20-640](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-640) | 640 W | +35 W, cooler, +1.2 pp | | [Trina Solar TSM-NEG20C.20-645](https://comparepv.com/panel/trina-solar-tsm-neg20c-20-645) | 645 W | +40 W, cooler, +1.4 pp | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | +75 W, lighter, +2.6 pp | --- Source: https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg20c-20-605w 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.