--- title: "Tongwei TWMNH-48HE465 Solar Panel: Specs & Datasheet | ComparePV" description: "Tongwei TWMNH-48HE465 solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tongwei-tw-solar-twmnh-48he465" image: "https://comparepv.com/og/panel/tongwei-tw-solar-twmnh-48he465.png" updated: 2026-09-11 --- # Tongwei TWMNH-48HE465 Efficiency leader, no clear weak spot 302 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Tongwei - **Model:** TWMNH-48HE465 - **Series:** TWMNH-48HE (TNC 2.0) - **Rated power:** 465 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 450-500 W (302 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 465 W | 470 W | Typical | | | Module efficiency | 23.30% | 22.52% | Strong - top 15% | 1,057 | | Power density | 232.7 | 225.3 | Strong - top 16% | 1,156 | | 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 | 23.30% | 22.52% | Strong - top 15% | 1,057 | | Power density | 232.7 | 225.3 | Strong - top 16% | 1,156 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 21% | 1,347 | | Weight per kWp | 51.0 | 49.7 | Typical | 4,353 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.30% module efficiency** - Top 15% of the N-type 450-500 W segment, against a median of 22.52%. - **232.7 watts per square metre** - Top 16% of the N-type 450-500 W segment, against a median of 225.3. - **-0.280 %/°C temperature coefficient** - Top 21% of the N-type 450-500 W segment, against a median of -0.290. - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 30.56 V - **Current at Pmax (Imp):** 15.22 A - **Open-circuit voltage (Voc):** 36.40 V - **Short-circuit current (Isc):** 15.92 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 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.7 kg - **Area:** 2.00 m2 - **Power density:** 232.7 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:** 406 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1057 of 14129 | | Power density | 1156 of 14129 | | Temperature coefficient | 1347 of 14129 | | Weight | 4353 of 14129 | | Warranty | 21 of 14129 | ## About this series The Tongwei TWMNH-48HE (TNC 2.0) series was designed to maximize energy yield in real-world operating conditions - beyond the laboratory. Its key advantage is **0BB (908) technology**, a solution that reinforces cell interconnections and helps mitigate the effects of microcracks that can occur during transportation, on rooftops, or when operating under varying temperatures. This translates to greater parameter stability and more reliable performance year after year. The module utilizes **TPE**, which supports the repair of edge defects on damaged cells and minimizes recombination losses - enabling the panel to better utilize light even in less-than-ideal conditions. Meanwhile, **precise screen printing** enhances current conduction and reduces losses, contributing to improved daily power generation. Another benefit is **enhanced bifacial capability (Poly Tech)**, ideal for locations where reflected energy matters: light-colored roofs, carports, facade-mounted systems, or ground installations. This is the series for investors and installers who want to combine high efficiency with durability and predictable energy output. ## Notable figures - Efficiency of 23.3% is 0.8pp above the \*\*N-type 450-500W\*\* median (22.5%) - Power density of 232.7 W/m² packs 7.4 W/m² more into the same footprint vs \*\*N-type 450-500W\*\* median (225.3 W/m²) - Temperature coefficient of -0.28%/°C matches the \*\*N-type 450-500W\*\* median - Ranked #1057 out of 14129 panels for efficiency in the database ## Questions ### What is 0BB (908) cell-connection technology in the Tongwei TWMNH-48HE panels, and does it actually help? 0BB (908) is a busbar-less cell interconnection method that uses thin soldered wires distributed across the entire cell surface instead of traditional busbars. This gives current more alternative paths to flow, so a single microcrack (from transport, rooftop handling, or thermal cycling) doesn't cut off an entire cell segment from the circuit. In practice, this lowers the risk of sudden power drops and delivers more stable output over the panel's service life. ### What is the maximum power output and efficiency of the Tongwei TWMNH-48HE TNC 2.0 panel? The top variant in this series reaches up to 470 Wp of maximum power, with module efficiency in the 22.5-23.5% range. This is achieved through N-type cells, precise stencil printing for the conductive grid, and TPE technology that reduces recombination losses. For roofs with limited surface area, this means more installed capacity without adding extra panels. ### What warranty applies to the Tongwei TWMNH-48HE (TNC 2.0) panels? The manufacturer provides a 15-year product warranty covering material and workmanship defects, plus a 30-year power output warranty guaranteeing a minimum retained power percentage over the system's lifetime. This is a strong benchmark for modern N-type modules and an important factor when comparing offers, especially given a system's payback period. ### Do Tongwei TWMNH-48HE panels perform well in summer heat on the roof? Yes, N-type modules in this series have a better power temperature coefficient than conventional P-type panels, meaning less output loss at high module temperatures (which can exceed 60°C on a roof in summer). Combined with TPE technology that reduces recombination losses, the panel maintains rated power better on hot, sunny days - precisely when conventional panels lose the most. ### How does N-type TNC 2.0 technology differ from common PERC panels? N-type cells use purer silicon and show slower first-year degradation compared to conventional P-type PERC cells. The TNC 2.0 series further combines N-type with 0BB and TPE technology, cutting energy losses and improving long-term parameter stability. The result is higher, more predictable energy yield throughout the 30-year power warranty period. ### Is Tongwei a reliable, safe manufacturer choice for solar panels? Tongwei is classified as a Tier 1 manufacturer, indicating financial stability, in-house production capacity (including cells), and inclusion in BloombergNEF bankability rankings. Headquartered in China, the company is one of the world's largest suppliers of PV cells and modules, which supports part availability, warranty service, and financing approval by banks and leasing companies. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/TNC2-0-TWMNH-48HE450-470W-B30-28-115-83a577622f18.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +30 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +40 W, cooler, +1.4 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +40 W, cooler, +1.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +25 W, lighter, +1.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +35 W, cooler, +1.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +35 W, lighter, +1.2 pp | | [Tongwei TWMNH-48HD430](https://comparepv.com/panel/tongwei-twmnh-48hd430) | 430 W | -35 W, lighter, -1.8 pp | | [Tongwei TWMNH-48HD435](https://comparepv.com/panel/tongwei-twmnh-48hd435) | 435 W | -30 W, lighter, -1.5 pp | | [Tongwei TWMNH-48HD440](https://comparepv.com/panel/tongwei-twmnh-48hd440) | 440 W | -25 W, lighter, -1.3 pp | | [Tongwei TWMNH-48HD445](https://comparepv.com/panel/tongwei-solar-twmnh-48hd445) | 445 W | -20 W, lighter, -1.0 pp | | [Tongwei TWMNH-48HD450](https://comparepv.com/panel/tongwei-solar-twmnh-48hd450) | 450 W | -15 W, lighter, -0.8 pp | --- Source: https://comparepv.com/panel/tongwei-tw-solar-twmnh-48he465 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.