--- title: "Trina Solar TSM-DE19-555 555W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-DE19-555 555W solar panel. Specs: 21.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-tsm-de19-555" updated: 2026-09-11 --- # Trina Solar TSM-DE19-555 Middle of its segment, short guarantee 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-DE19-555 - **Series:** Vertex (TSM-DE19) - **Rated power:** 555 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 555 W | 560 W | Typical | | | Module efficiency | 21.20% | 21.29% | Typical | 9,076 | | Power density | 212.4 | 212.9 | Typical | 9,045 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,778 | | Weight (kg) | 28.3 kg | 30.8 kg | Typical | | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.20% | 21.29% | Typical | 9,076 | | Power density | 212.4 | 212.9 | Typical | 9,045 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,778 | | Weight per kWp | 51.0 | 52.7 | Typical | 4,351 | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 555 W - **Efficiency:** 21.20 % - **Voltage at Pmax (Vmp):** 31.80 V - **Current at Pmax (Imp):** 17.45 A - **Open-circuit voltage (Voc):** 38.10 V - **Short-circuit current (Isc):** 18.56 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:** 110 ### Physical - **Length:** 2384 mm - **Width:** 1096 mm - **Thickness:** 30 mm - **Weight:** 28.3 kg - **Area:** 2.61 m2 - **Power density:** 212.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 455 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9076 of 14005 | | Power density | 9045 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 4351 of 14005 | | Warranty | 9798 of 14005 | ## About this series Trina Solar's Vertex TSM-DE19 series is designed for installations where maximizing yield per square meter of structure and achieving a rapid return on investment are key priorities. These modules utilize **large-format monocrystalline PERC cells** and **multi-busbar technology**, which enhance current collection and enable more stable performance under suboptimal sunlight conditions and less favorable angles of incidence. The application of **high-density interconnect** and precise cutting methods minimizes the risk of micro-cracks, thereby preventing power degradation over the long term. In practice, this translates to a lower energy cost over time and reduced susceptibility to typical operational issues such as hot spots or gradual degradation. This makes it an excellent choice for PV farms, large commercial rooftops, and projects where lower **BOS costs** and easier project optimization due to the module's high power are priorities. Against the competition, the Vertex TSM-DE19 stands out with its refined combination of solutions that increase yield and reliability, without compromising on longevity. ## Notable figures - Efficiency of 21.2% matches the \*\*PERC 550-600W\*\* median - At 212.4 W/m² power density, roof space requirements are typical for \*\*PERC 550-600W\*\* panels - At -0.34%/°C, hot weather performance is typical for \*\*PERC 550-600W\*\* panels - Weight of 28.3 kg (2.5 kg below \*\*PERC 550-600W\*\* median of 30.8 kg) allows easier transport and roof mounting - In the top 65% for efficiency among all PERC panels ## Questions ### Are Trina Vertex TSM-DE19 panels still available for purchase? The TSM-DE19 series has been discontinued from current production by Trina Solar and replaced by the newer Vertex S+ lineup based on TOPCon technology. New units may still be found as remaining distributor stock, while the manufacturer's warranty support stays active for the full warranty period. Before buying, confirm the production date with the seller and check the availability of replacement modules in case of a warranty claim. ### What warranty comes with Trina Vertex TSM-DE19 panels? The manufacturer provides a 12-year product warranty and a 25-year linear power warranty, guaranteeing at least 84.8% of the initial power output at the end of that period. This is a standard warranty structure for tier-1 PERC modules of this class and lets investors reliably forecast energy yield over the entire lifetime of the installation. ### How does the TSM-DE19 differ from the newer Vertex S+ (TOPCon) series? The TSM-DE19 uses large-format monocrystalline PERC cells rated up to 560 Wp, while the newer Vertex S+ series is built on N-type TOPCon technology, offering higher efficiency and lower annual power degradation. The TSM-DE19 remains a solid, proven choice for large PV farms and commercial roofs, but buyers looking for maximum efficiency should consider Trina's current product lineup. ### Do Trina Vertex TSM-DE19 panels perform well in cold temperatures? Yes. The power temperature coefficient is -0.34%/°C, meaning that in cold conditions the panel generates output close to its rated value, and sometimes slightly higher than at standard test conditions (25°C). The modules perform well in temperate and colder climates, where cell overheating losses common in hot climates during summer are less of an issue. ### Are TSM-DE19 (560 Wp) panels suitable for large commercial roofs or utility-scale PV farms? Yes, this is one of the primary use cases for this series. The high single-module power output (up to 560 Wp) and large format (2384x1096 mm, weight approx. 28.3 kg) reduce the number of modules, cabling, and mounting structure elements needed per kWp, lowering BOS costs. Due to the weight and dimensions, plan for appropriate transport logistics and a reinforced mounting structure, especially on roofs with limited load capacity. ### What does the multi-busbar technology in Trina Vertex TSM-DE19 panels provide? Multi-busbar technology increases the number of current-collection paths on the cell, reducing resistive losses and improving module performance under low irradiance or unfavorable angles of incidence. Combined with precise cell cutting, it also lowers the risk of microcracks, resulting in more stable energy yield over the long-term operation of the installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/45881813964d4856bc2a16-215994fa4a4b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +3.8 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +3.6 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | -50 W, cooler, +3.5 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +3.4 pp, +5 yr warranty | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +3.2 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | Cooler, +3.2 pp, +5 yr warranty | | [Trina Solar TSM-DE19-540](https://comparepv.com/panel/trina-solar-tsm-de19-540) | 540 W | -15 W, -0.5 pp | | [Trina Solar TSM-DE19-545](https://comparepv.com/panel/trina-solar-tsm-de19-545) | 545 W | -10 W, -0.3 pp | | [Trina Solar TSM-DE19-550](https://comparepv.com/panel/trina-solar-tsm-de19-550) | 550 W | Very close match | | [Trina Solar TSM-DE19-560](https://comparepv.com/panel/trina-solar-tsm-de19-560) | 560 W | Very close match | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +125 W, cooler, +4.0 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +120 W, cooler, +3.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +145 W, cooler, +3.8 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +140 W, cooler, +3.7 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +115 W, cooler, +3.6 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +115 W, cooler, +3.6 pp | --- Source: https://comparepv.com/panel/trina-solar-tsm-de19-555 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.