--- title: "Trina Solar TSM-NE21 725W 725W Solar Panel - Specs & Review | ComparePV" description: "Trina Solar TSM-NE21 725W 725W solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/trina-solar-co-ltd-tsm-ne21-725w" updated: 2026-09-11 --- # Trina Solar TSM-NE21 725W Light for its output, short guarantee 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** Trina Solar - **Model:** TSM-NE21 725W - **Series:** Vertex N (TSM-NE21 695-725W) - **Rated power:** 725 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 700-750 W (420 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 725 W | 715 W | Strong - top 17% | | | Module efficiency | 23.30% | 23.00% | Strong - top 19% | 1,017 | | Power density | 233.4 | 230.2 | Strong - top 18% | 936 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 32.9 kg | 38.0 kg | Strong - top 8% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 1% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.30% | 23.00% | Strong - top 19% | 1,017 | | Power density | 233.4 | 230.2 | Strong - top 18% | 936 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 45.4 | 52.9 | Strong - top 8% | 717 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 1% | 9,798 | ### Strengths - **45.4 kg per kWp** - Top 8% of the TOPCon 700-750 W segment, against a median of 52.9. Ranked 717th in the whole database. - **233.4 watts per square metre** - Top 18% of the TOPCon 700-750 W segment, against a median of 230.2. - **23.30% module efficiency** - Top 19% of the TOPCon 700-750 W segment, against a median of 23.00%. ### Watch out for - **25 year performance warranty** - Bottom 1% of the TOPCon 700-750 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database. - **Best for:** Utility-scale and hot-climate. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 725 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 41.50 V - **Current at Pmax (Imp):** 17.47 A - **Open-circuit voltage (Voc):** 49.70 V - **Short-circuit current (Isc):** 18.49 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 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 32.9 kg - **Area:** 3.11 m2 - **Power density:** 233.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 89.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 634 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1017 of 14005 | | Power density | 936 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 717 of 14005 | | Warranty | 9798 of 14005 | ## About this series Trina Solar Vertex N TSM-NE21 695-725W modules are designed for maximum energy production on large-scale projects, where rapid return and reliable operation over the long term are crucial. The application of **N-type cells in TOPCon technology** translates to more stable performance and lower power degradation over time, effectively improving project profitability without the need for "overprovisioning." The key advantage is the **bifacial dual-glass construction** - the module can also utilize reflected light from the ground, increasing yield in PV farms and ground-mounted installations. Furthermore, **high power output with a low-voltage concept** facilitates cost optimization in the Balance of System (BOS): fewer modules, fewer components, faster installation, and simpler on-site logistics. This solution is tailored for investors, EPC contractors, and developers of solar farms who aim to **lower the levelized cost of energy (LCOE)** and build installations resilient to operational risks. Against competitors, this series stands out with its **longer warranty period and emphasis on reliability**, which is significant for financing and project bankability. ## Notable figures - Efficiency of 23.3% matches the \*\*TOPCon 700-750W\*\* median - At 233.4 W/m² power density, this panel generates 3.2 W/m² more per unit area than \*\*TOPCon 700-750W\*\* median (230.2 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 700-750W\*\* median - At 32.9 kg, this panel is 5.1 kg lighter than \*\*TOPCon 700-750W\*\* median (38.0 kg) - easier handling during installation - Ranked #1017 out of 14005 panels for efficiency in the database ## Questions ### How does TOPCon technology in Trina Vertex N TSM-NE21 panels differ from standard PERC cells? N-type TOPCon cells have lower power degradation over time and perform better at higher temperatures than conventional P-type PERC cells. In practice, this means higher energy yield over a 25-year lifespan and reduced risk of performance loss, which matters most on large solar farms where every percentage point of efficiency counts. ### Are the Vertex N TSM-NE21 panels bifacial? Yes, the modules use a dual-glass bifacial construction, so the rear side also generates power from light reflected off the ground surface. With a bifaciality factor of around 80%, this translates into a real yield boost, especially on ground-mounted installations over light-colored surfaces, gravel, or white membrane, where the albedo effect is significant. ### What warranty does Trina Solar offer on the Vertex N TSM-NE21 695-725W series? The manufacturer provides a 12-year product warranty and a 25-year power output warranty, guaranteeing 89.4% of original power retention after that period. As a Tier 1 manufacturer, Trina Solar offers stable service support, which is an important factor when financiers assess the bankability of a project. ### How many Vertex N 725W panels are needed to build a 1 MW PV plant? With a maximum unit power of 725 Wp, roughly 1,380 modules are needed to reach 1 MWp, fewer than with lower-power panels. This reduces the number of mounting structures, connectors, and installation time, directly lowering BOS costs and speeding up project completion. ### Are Vertex N TSM-NE21 panels suitable for residential sloped roofs? This series is designed mainly for large commercial and ground-mounted installations rather than typical residential sloped roofs. The module's large dimensions and high unit power make it better suited to large, flat, or gently sloped areas where maximizing power per square meter is the priority. ### Is the Trina Vertex N TSM-NE21 695-725W series still available for purchase? Yes, the series remains part of the manufacturer's current lineup and has not been discontinued. Trina Solar continues to develop it alongside newer Vertex N variants, so these modules are still supplied to distributors and used in new farm and commercial installation projects. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dt-m-0105-g-en-b-datasheet-vertex-ne21-2025-a-dd7ef92e6345.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -45 W, +1.9 pp, +5 yr warranty | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -50 W, +1.7 pp, +5 yr warranty | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, +1.7 pp, +5 yr warranty | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | -30 W, +1.6 pp, +5 yr warranty | | [AIKO AIKO-A690-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a690-mae78dw) | 690 W | -35 W, +1.4 pp, +5 yr warranty | | [AIKO AIKO-A685-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a685-mae78dw) | 685 W | -40 W, +1.2 pp, +5 yr warranty | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | Heavier, +1.2 pp, +5 yr warranty | | [AIKO AIKO-A680-MAH78Dw](https://comparepv.com/panel/aiko-aiko-a680-mah78dw) | 680 W | -45 W, +1.0 pp, +5 yr warranty | | [Trina Solar TSM-DEG21C.20-645](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg21c-20-645) | 645 W | -80 W, heavier, -2.5 pp | | [Trina Solar TSM-DEG21C.20-650](https://comparepv.com/panel/trina-solar-co-ltd-tsm-deg21c-20-650) | 650 W | -75 W, heavier, -2.4 pp | | [Trina Solar TSM-DE21-655W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-de21-655w) | 655 W | -70 W, hotter, -2.2 pp | | [Trina Solar TSM-DE21-660W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-de21-660w) | 660 W | -65 W, hotter, -2.1 pp | | [Trina Solar TSM-DE21-665W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-de21-665w) | 665 W | -60 W, hotter, -1.9 pp | | [Trina Solar TSM-DE21-670W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-de21-670w) | 670 W | -55 W, hotter, -1.8 pp | | [Trina Solar TSM-DE21-675W](https://comparepv.com/panel/trina-solar-co-ltd-tsm-de21-675w) | 675 W | -50 W, hotter, -1.6 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +80 W, heavier, +1.8 pp | --- Source: https://comparepv.com/panel/trina-solar-co-ltd-tsm-ne21-725w 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.