--- title: "Tongwei TWMNH-48HD460 Solar Panel: Specs & Datasheet | ComparePV" description: "Tongwei TWMNH-48HD460 solar panel. Specs: 23.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tongwei-solar-twmnh-48hd460" image: "https://comparepv.com/og/panel/tongwei-solar-twmnh-48hd460.png" updated: 2026-09-11 --- # Tongwei TWMNH-48HD460 Strong in heat, no clear weak spot 302 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Tongwei - **Model:** TWMNH-48HD460 - **Series:** TWMNH-48HD - **Rated power:** 460 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (302 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 470 W | Typical | | | Module efficiency | 23.00% | 22.52% | Typical | 1,970 | | Power density | 230.2 | 225.3 | Typical | 1,927 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 21% | 1,347 | | Weight (kg) | 23.7 kg | 23.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.00% | 22.52% | Typical | 1,970 | | Power density | 230.2 | 225.3 | Typical | 1,927 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 21% | 1,347 | | Weight per kWp | 51.5 | 49.7 | Typical | 4,928 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 21% of the N-type 450-500 W segment, against a median of -0.290. - **Best for:** Residential, commercial, shaded-installations and BIPV. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 30.69 V - **Current at Pmax (Imp):** 14.99 A - **Open-circuit voltage (Voc):** 36.15 V - **Short-circuit current (Isc):** 16.05 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.280 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.7 kg - **Area:** 2.00 m2 - **Power density:** 230.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 402 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1970 of 14129 | | Power density | 1927 of 14129 | | Temperature coefficient | 1347 of 14129 | | Weight | 4928 of 14129 | | Warranty | 21 of 14129 | ## About this series The Tongwei TWMNH-48HD series are compact N-type modules engineered to generate more energy from the same rooftop surface - without compromising on durability. The key difference lies in the **bifacial construction**, which harnesses both direct and reflected light, significantly boosting energy yield in ground-mounted installations, carports, and light-coloured rooftops. The implementation of **half-cut cell technology** enhances performance under partial shading and minimizes losses, enabling the modules to perform optimally in typical urban environments (e.g., chimneys, antennas, trees). In practice, the TWMNH-48HD series addresses energy production drops on overcast days - **N-type cells** maintain stable performance in low-light conditions and demonstrate greater resistance to long-term degradation. Moreover, the **dual-glass** (dual glass) construction increases environmental resilience and facilitates long-term system design. This series targets demanding prosumers and small to medium-sized commercial projects where energy output, aesthetic appeal of the black frame, and predictable system performance are paramount. ## Notable figures - At 23.0% efficiency, this panel is on par with typical \*\*N-type 450-500W\*\* modules - At 230.2 W/m² power density, this panel generates 4.9 W/m² more per unit area than \*\*N-type 450-500W\*\* median (225.3 W/m²) - Temperature coefficient of -0.28%/°C matches the \*\*N-type 450-500W\*\* median - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - In the top 14% for efficiency among all N-type panels ## Questions ### What does N-type cell technology mean for the Tongwei TWMNH-48HD and is it worth the price? N-type cells have lower annual degradation and perform better in low-light conditions than older P-type (PERC) cells. In practice, TWMNH-48HD loses less power on cloudy days and over its lifetime, translating into higher total energy yield over 25-30 years, despite a somewhat higher upfront cost compared to cheaper cell technologies. ### Is the bifacial version of TWMNH-48HD worth choosing over a standard panel? Bifacial construction makes the most sense for ground-mount, carport, and light-colored flat roof installations, where the rear side captures reflected light and can boost output by several to over ten percent. On a typical dark, pitched roof with little clearance, the bifacial gain will be minimal, but the module still benefits from the more durable glass-glass build. ### What warranty comes with Tongwei TWMNH-48HD modules? The TWMNH-48HD series carries a 15-year product warranty covering material and workmanship defects, plus a 30-year power warranty guaranteeing 87.4 percent of rated output after 30 years. This is standard for a tier-1 manufacturer like Tongwei and among the longer warranty periods currently available for N-type modules. ### Does the TWMNH-48HD 465W panel handle partial shading well, such as from a chimney or antenna? Yes, the half-cut cell layout splits each cell into halves wired into independent strings with bypass diodes. When part of the panel is shaded by a chimney, antenna, or tree, power loss is limited to the affected section rather than the whole module. This is a meaningful advantage in typical urban rooftop conditions where full roof exposure is often hard to achieve. ### What are the dimensions and weight of the Tongwei TWMNH-48HD panel, and does it fit a typical pitched roof? The module measures 1762 x 1134 x 30 mm with a 96-cell (6x16) layout, fitting standard mounting rail spacing available on the market. The glass-glass construction is heavier than backsheet panels, so it's worth confirming roof load capacity and suitable mounting clamps with your installer, especially on older, lighter roof structures. ### Does the TWMNH-48HD reach the full 465 Wp rating, and why do power figures vary between offers? The TWMNH-48HD series is manufactured across a 445 to 465 Wp power range, with the exact output depending on the cell binning class of a given production batch - higher bins cost more. Check the datasheet for the specific batch you're buying, since market listings sometimes quote the top of the range as a representative figure. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/TNC2-0-TWMNH-48HD445-465W-B30-28-115-2dbf1351fa0f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +35 W, lighter, +1.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +45 W, cooler, +1.7 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +30 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +40 W, cooler, +1.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +40 W, lighter, +1.5 pp | | [Tongwei TWMNH-48HD430](https://comparepv.com/panel/tongwei-twmnh-48hd430) | 430 W | -30 W, lighter, -1.5 pp | | [Tongwei TWMNH-48HD435](https://comparepv.com/panel/tongwei-twmnh-48hd435) | 435 W | -25 W, lighter, -1.2 pp | | [Tongwei TWMNH-48HD440](https://comparepv.com/panel/tongwei-twmnh-48hd440) | 440 W | -20 W, lighter, -1.0 pp | | [Tongwei TWMNH-48HD445](https://comparepv.com/panel/tongwei-solar-twmnh-48hd445) | 445 W | -15 W, lighter, -0.7 pp | | [Tongwei TWMNH-48HD450](https://comparepv.com/panel/tongwei-solar-twmnh-48hd450) | 450 W | -10 W, lighter, -0.5 pp | --- Source: https://comparepv.com/panel/tongwei-solar-twmnh-48hd460 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.