--- title: "Techwise Solar TW-450HT-02 450W Solar Panel - Specs & Review | ComparePV" description: "Techwise Solar TW-450HT-02 450W solar panel. Specs: 22.52% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/techwise-solar-tw-450ht-02" updated: 2026-09-11 --- # Techwise Solar TW-450HT-02 Middle of its segment, heavy for its output 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Techwise Solar - **Model:** TW-450HT-02 - **Series:** Sun-Pursuit Plus Series - **Rated power:** 450 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 465 W | Weak - bottom 9% | | | Module efficiency | 22.52% | 22.52% | Typical | 4,108 | | Power density | 225.2 | 225.2 | Typical | 4,225 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight (kg) | 25.0 kg | 24.0 kg | Weak - bottom 11% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.52% | 22.52% | Typical | 4,108 | | Power density | 225.2 | 225.2 | Typical | 4,225 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight per kWp | 55.6 | 52.2 | Weak - bottom 11% | 9,909 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.6 kg per kWp** - Bottom 11% of the TOPCon 450-500 W segment, against a median of 52.2. - **-0.300 %/°C temperature coefficient** - Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290. - **Best for:** Residential, commercial, utility-scale and shaded-installations. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 22.52 % - **Voltage at Pmax (Vmp):** 29.78 V - **Current at Pmax (Imp):** 15.11 A - **Open-circuit voltage (Voc):** 36.02 V - **Short-circuit current (Isc):** 15.82 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.00 m2 - **Power density:** 225.2 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:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4108 of 14005 | | Power density | 4225 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 9909 of 14005 | | Warranty | 21 of 14005 | ## About this series The Techwise Solar Sun-Pursuit Plus series is designed to maximize energy yield in situations where every square meter and stable performance in variable conditions matter. Its foundation is **TOPCon technology**, which helps maintain high module efficiency in daily operation, even under lower sunlight conditions. **Bifacial** variants also allow for further utilization of reflected light from the ground, which realistically increases energy production on flat roofs and in ground-mounted installations with sufficient surface area beneath the module. Using half-cut cells minimizes losses and improves panel performance under partial shading, and the **multi-busbar (16BB) design** supports better current transport within the cell. For investors who prioritize aesthetics, **Full Black** versions are available - particularly desirable on modern residential and commercial roofs. Sun-Pursuit Plus is a good choice for prosumers, companies, and PV farms that expect high-end technology and predictable yields without compromising. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - Power density of 225.2 W/m² matches the \*\*TOPCon 450-500W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 450-500W\*\* median - At 25.0 kg, weight matches the \*\*TOPCon 450-500W\*\* median - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How many Techwise Solar Sun-Pursuit Plus panels are needed for a 10 kWp system? With a module power of 625 Wp, only 16 panels are required to reach a 10 kWp system (16 x 625 Wp = 10,000 Wp). This is significantly fewer modules than with older 350-400 Wp panels, resulting in fewer mounting points, faster installation, and better use of limited roof or ground space. ### How does TOPCon technology in the Sun-Pursuit Plus differ from classic PERC panels? TOPCon (Tunnel Oxide Passivated Contact) uses an additional passivation layer that reduces electron recombination on the rear side of the cell. As a result, Sun-Pursuit Plus modules achieve higher efficiency and a smaller power drop at rising temperatures compared to older PERC panels. In practice, this means higher yields, especially in summer and under partial sunlight conditions. ### What is the warranty on Sun-Pursuit Plus panels and what does it cover? Techwise Solar provides a 15-year product warranty covering material and workmanship defects, along with a 30-year power warranty guaranteeing a minimum energy output level throughout the module's service life. This is in line with current market standards for premium TOPCon panels, giving investors greater confidence in long-term return on investment. ### Do Sun-Pursuit Plus Full Black panels lose performance compared to the standard version? The Full Black version uses the same TOPCon technology and identical half-cut cell design, so the difference in efficiency is minimal to none - the black frame and backsheet do not significantly affect energy production. Choosing this version is mainly a matter of aesthetics, valued for installations on modern residential and commercial building roofs where visual appearance matters. ### Do Sun-Pursuit Plus panels handle partial shading better than standard modules? Yes, thanks to half-cut cell technology, the panel is divided into independent electrical sections, so shading part of the module - for example from a chimney or branch - doesn't shut down the entire panel, only reduces output in the affected section. The 16BB multi-busbar layout further improves current flow and reduces resistive losses under non-uniform lighting conditions. ### Is the Sun-Pursuit Plus series better suited for residential or commercial installations? The series is designed for both prosumers and businesses or utility-scale PV farms. The high per-module power output (625 Wp) works well for large ground-mounted and industrial installations where scale matters, while the availability of a Full Black version makes it equally attractive for residential installations focused on roof aesthetics. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/tw-450ht-02-en-5182b83b82de.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, lighter, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +2.0 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +2.0 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +2.0 pp | | [Techwise Solar TW-430HDB-1](https://comparepv.com/panel/techwise-solar-tw-430hdb-1) | 430 W | -20 W, hotter, -1.0 pp | | [Techwise Solar TW-435HTS-02](https://comparepv.com/panel/techwise-solar-tw-435hts-02) | 435 W | Lighter, -0.8 pp, -5 yr warranty | | [Techwise Solar TW-440HTS-02](https://comparepv.com/panel/techwise-solar-tw-440hts-02) | 440 W | Lighter, -0.5 pp, -5 yr warranty | | [Techwise Solar TW-445HTS-02](https://comparepv.com/panel/techwise-solar-tw-445hts-02) | 445 W | Lighter, -0.2 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/techwise-solar-tw-450ht-02 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.