--- title: "Techwise Solar TW-455HT-120M 455W Solar Panel - Specs & Review | ComparePV" description: "Techwise Solar TW-455HT-120M 455W solar panel. Specs: 20.43% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/techwise-solar-tw-455ht-120m" updated: 2026-09-11 --- # Techwise Solar TW-455HT-120M Middle of its segment, heavy for its output 449 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** Techwise Solar - **Model:** TW-455HT-120M - **Series:** Sun-Pursuit Series (TW-460HT) - **Rated power:** 455 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (449 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 460 W | Typical | | | Module efficiency | 20.43% | 20.82% | Weak - bottom 17% | 11,566 | | Power density | 206.0 | 208.5 | Weak - bottom 22% | 11,109 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 26.5 kg | 24.5 kg | Weak - bottom 17% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.43% | 20.82% | Weak - bottom 17% | 11,566 | | Power density | 206.0 | 208.5 | Weak - bottom 22% | 11,109 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 58.2 | 53.1 | Weak - bottom 17% | 11,637 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **58.2 kg per kWp** - Bottom 17% of the PERC 450-500 W segment, against a median of 53.1. - **20.43% module efficiency** - Bottom 17% of the PERC 450-500 W segment, against a median of 20.82%. - **206.0 watts per square metre** - Bottom 22% of the PERC 450-500 W segment, against a median of 208.5. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 20.43 % - **Voltage at Pmax (Vmp):** 36.45 V - **Current at Pmax (Imp):** 12.48 A - **Open-circuit voltage (Voc):** 44.94 V - **Short-circuit current (Isc):** 13.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 2108 mm - **Width:** 1048 mm - **Thickness:** 35 mm - **Weight:** 26.5 kg - **Area:** 2.21 m2 - **Power density:** 206.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11566 of 14005 | | Power density | 11109 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 11637 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Techwise Solar Sun-Pursuit (TW-460HT) series are monocrystalline modules based on a **half-cut** architecture, designed to maintain stable performance even when part of the panel is intermittently shaded or dirty. The use of a **multi-busbar** connection structure minimizes losses due to microcracks and improves current collection from the cells, resulting in more predictable performance in real-world conditions. In practice, the TW-460HT solves common rooftop installation problems: fluctuations in production due to uneven sunlight, power drops after heating, and the risk of gradual performance degradation over time. This is facilitated by **low degradation over the lifespan** and a refined laminate structure, which is particularly important for intensive use. It is a good choice for single-family homes, small and medium-sized businesses, and farms, where **high surface efficiency** and easier compatibility with standard inverters and string configurations are important. It stands out from the competition due to its combination of mature cell technology with a focus on reliability in everyday operation. ## Notable figures - Efficiency of 20.4% matches the \*\*PERC 450-500W\*\* median - Power density of 206.0 W/m² matches the \*\*PERC 450-500W\*\* median - Temperature coefficient of -0.35%/°C matches the \*\*PERC 450-500W\*\* median - At 26.5 kg (2.0 kg above \*\*PERC 450-500W\*\* median of 24.5 kg), requires checking roof load capacity - #11566 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What is the maximum power output of the Techwise Solar TW-460HT panel? The TW-460HT delivers a maximum power output of 460 Wp. Thanks to its half-cut architecture and multi-busbar design, this power rating is achieved with reduced microcrack-related losses, resulting in more stable energy yields compared to full-cell modules of similar nominal power. ### How does half-cut technology in the TW-460HT differ from standard monocrystalline panels? In half-cut technology, monocrystalline cells are cut in half, reducing current losses and limiting the impact of partial shading on the whole panel's output. In the TW-460HT, this is combined with PERC cells and a multi-busbar grid, which improves current collection and reduces the risk of degradation from microcracks. ### What warranty comes with the Techwise Solar Sun-Pursuit TW-460HT? The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year power warranty guaranteeing a defined performance level of the cells over the long term. Low lifecycle degradation further supports stable energy production throughout the warranty period. ### Will the TW-460HT perform well on a roof partially shaded by a chimney or trees? Yes, this is one of the main benefits of the half-cut architecture used in the TW-460HT. Splitting cells into halves limits the power drop across the whole string when only part of the panel is shaded or soiled, keeping energy production more predictable even under uneven sunlight exposure throughout the day. ### Are the Sun-Pursuit TW-460HT panels bifacial? No, the TW-460HT series consists of monofacial panels, optimized for standard rooftop installations where the rear side has no access to reflected light. If you need extra yield from albedo gain, consider bifacial variants from the manufacturer's lineup, designed for ground-mount or freestanding structures. ### What types of installations is the TW-460HT series best suited for? The TW-460HT series is designed for single-family homes, small and medium-sized businesses, and solar farms, where high area efficiency matters most. These panels are easy to match with typical inverters and string configurations, simplifying system design without the need for custom engineering solutions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/tw-460ht-en-5339ddaa83b3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.4 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +4.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +4.1 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +4.1 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | Cooler, lighter, +4.1 pp | | [Techwise Solar TW-445HT-120M](https://comparepv.com/panel/techwise-solar-tw-445ht-120m) | 445 W | -10 W, -0.4 pp | | [Techwise Solar TW-450HT-120M](https://comparepv.com/panel/techwise-solar-tw-450ht-120m) | 450 W | -0.2 pp | | [Techwise Solar TW-460HT-120M](https://comparepv.com/panel/techwise-solar-tw-460ht-120m) | 460 W | +0.2 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +135 W, +3.4 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +130 W, +3.2 pp, +5 yr warranty | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +125 W, cooler, +3.1 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +125 W, +3.0 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/techwise-solar-tw-455ht-120m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.