--- title: "Trina Solar TSM-DE17M(II)-465W Solar Panel: Specs & Datasheet | ComparePV" description: "Trina Solar TSM-DE17M(II)-465W solar panel. Specs: 21.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-tsm-de17m-ii-465w" image: "https://comparepv.com/og/panel/trina-solar-tsm-de17m-ii-465w.png" updated: 2026-09-11 --- # Trina Solar TSM-DE17M(II)-465W Efficiency leader, no clear weak spot 452 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-DE17M(II)-465W - **Series:** Tallmax Framed 144 Layout Module - **Rated power:** 465 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (452 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 465 W | 460 W | Typical | | | Module efficiency | 21.30% | 20.82% | Strong - top 10% | 8,585 | | Power density | 212.7 | 208.5 | Strong - top 11% | 8,795 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 19% | 8,846 | | Weight (kg) | 24.0 kg | 24.5 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.30% | 20.82% | Strong - top 10% | 8,585 | | Power density | 212.7 | 208.5 | Strong - top 11% | 8,795 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 19% | 8,846 | | Weight per kWp | 51.6 | 53.1 | Typical | 5,010 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **21.30% module efficiency** - Top 10% of the PERC 450-500 W segment, against a median of 20.82%. - **212.7 watts per square metre** - Top 11% of the PERC 450-500 W segment, against a median of 208.5. - **-0.340 %/°C temperature coefficient** - Top 19% of the PERC 450-500 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 21.30 % - **Voltage at Pmax (Vmp):** 41.80 V - **Current at Pmax (Imp):** 11.14 A - **Open-circuit voltage (Voc):** 50.00 V - **Short-circuit current (Isc):** 11.69 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:** 144 ### Physical - **Length:** 2102 mm - **Width:** 1040 mm - **Thickness:** 35 mm - **Weight:** 24.0 kg - **Area:** 2.19 m2 - **Power density:** 212.7 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:** 382 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8585 of 14129 | | Power density | 8795 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 5010 of 14129 | | Warranty | 9912 of 14129 | ## About this series Trina Solar's Tallmax Framed 144 Half-Cut Module series was designed for installations where predictable energy production and stable performance in challenging conditions are key considerations. The application of the **144 Half-Cut Layout** effectively minimizes internal resistance losses and enhances module performance under partial shading - which is particularly relevant on roof systems with obstructions, ground-mounted rows, and areas where shade occurs seasonally. In practice, this translates to a **lower system cost**, as it simplifies the wiring design and BOS (Balance of System) optimization. A key feature of this series is its refined electrical architecture with a **divided connector box**, which helps reduce losses between module rows. The Tallmax Framed 144 is an excellent choice for investors seeking **high PID resistance and robustness against environmental conditions** (e.g., humidity, dust, industrial atmospheres), while also wanting a proven, reliable frame structure that facilitates installation. This solution is particularly suitable for PV farms, commercial roofs, and larger residential systems, where long-term reliability and resilience to typical operational issues are paramount. ## Notable figures - At 21.3% efficiency, this panel is on par with typical \*\*PERC 450-500W\*\* modules - 212.7 W/m² power density - 4.2 W/m² more than \*\*PERC 450-500W\*\* median (208.5 W/m²), more power per roof area - At -0.34%/°C, hot weather performance is typical for \*\*PERC 450-500W\*\* panels - In the top 61% for efficiency among all PERC panels ## Questions ### Is the Trina Solar Tallmax Framed 144 Layout Module series still available for purchase? The Tallmax Framed 144 Layout Module series has been discontinued by Trina Solar and is no longer in active production. Availability is limited to remaining distributor stock, and once that runs out, new units will no longer be obtainable. Customers planning to expand an existing installation based on this series should consider purchasing spare modules in advance to avoid compatibility issues down the line. ### What warranty comes with the 465 Wp Tallmax Framed 144 panels? Trina Solar backs this series with a 12-year product warranty covering material and workmanship defects, plus a 25-year linear power performance warranty. This is standard for a Tier 1 manufacturer and gives investors confidence in long-term returns, even though the series itself is no longer in production. ### What does the 144 half-cut layout in the Tallmax Framed panel mean, and what are its benefits? The 144 half-cut layout splits standard PERC cells in half, reducing current through each cell and lowering resistive losses. In practice, this makes the panel more resilient to partial shading, such as from chimneys, roof dormers, or neighboring rows in ground-mount arrays, since shading one half-cell has a smaller impact on overall module output. ### Is the Tallmax Framed 144 suitable for harsh environmental conditions like high humidity or dust? Yes, the series is engineered for high resistance to PID (Potential Induced Degradation) as well as environmental stressors such as moisture, dust, and industrial atmospheres. This makes it well suited for PV farms, commercial rooftops, and locations with elevated corrosion or soiling risk, where long-term production stability is critical. ### How does the split junction box on the Tallmax Framed differ from a standard design? The split junction box divides the module's electrical circuit into independent sections, reducing power losses transferred between series-connected panel rows. This results in slightly higher system-level energy efficiency and gives system designers more flexibility when planning wiring layouts and optimizing balance-of-system (BOS) costs. ### Is the Tallmax Framed 144 bifacial, and is it suitable for a pitched roof? No, this series uses a classic monofacial PERC cell design in a traditional framed construction, without additional rear-side energy generation. The proven framed build makes it easy to install both on pitched residential roofs and on larger commercial or ground-mount PV installations, where simplicity and mounting reliability matter most. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/datasheet-Trina-TallmaxM-DE17M-II-440-465-SF-EN-2-e17634c72186.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +3.7 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, +3.5 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +3.4 pp, +5 yr warranty | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, +3.4 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, +3.2 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +3.2 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, +3.2 pp, +5 yr warranty | | [Trina Solar TSM-DE17M(II)-435W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-435w) | 435 W | -30 W, -1.4 pp | | [Trina Solar TSM-DE17M(II)-440W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-440w) | 440 W | -25 W, -1.2 pp | | [Trina Solar TSM-DE17M(II)-445W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-445w) | 445 W | -20 W, -0.9 pp | | [Trina Solar TSM-DE17M(II)-450W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-450w) | 450 W | -15 W, -0.7 pp | | [Trina Solar TSM-DE17M(II)-455W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-455w) | 455 W | -10 W, -0.5 pp | | [Trina Solar TSM-DE17M(II)-460W](https://comparepv.com/panel/trina-solar-tsm-de17m-ii-460w) | 460 W | -0.3 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +125 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +120 W, +2.3 pp, +5 yr warranty | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +115 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/trina-solar-tsm-de17m-ii-465w 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.