--- title: "Techwise Solar TW-620HTS-02 620W Solar Panel - Specs & Review | ComparePV" description: "Techwise Solar TW-620HTS-02 620W solar panel. Specs: 22.61% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/techwise-solar-tw-620hts-02" updated: 2026-09-11 --- # Techwise Solar TW-620HTS-02 Middle of its segment, short guarantee 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Techwise Solar - **Model:** TW-620HTS-02 - **Series:** Sun-Pursuit Plus Series - **Rated power:** 620 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 620 W | 620 W | Typical | | | Module efficiency | 22.61% | 22.80% | Typical | 3,643 | | Power density | 229.5 | 227.7 | Typical | 2,191 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 34.6 kg | 32.7 kg | Weak - bottom 8% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 3% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.61% | 22.80% | Typical | 3,643 | | Power density | 229.5 | 227.7 | Typical | 2,191 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.8 | 53.1 | Weak - bottom 8% | 10,192 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 3% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 3% of the TOPCon 600-650 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database. - **55.8 kg per kWp** - Bottom 8% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 10,192nd in the whole database. - **Best for:** Residential, commercial, utility-scale and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 620 W - **Efficiency:** 22.61 % - **Voltage at Pmax (Vmp):** 43.11 V - **Current at Pmax (Imp):** 14.38 A - **Open-circuit voltage (Voc):** 50.10 V - **Short-circuit current (Isc):** 15.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 34.6 kg - **Area:** 2.70 m2 - **Power density:** 229.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3643 of 14005 | | Power density | 2191 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 10192 of 14005 | | Warranty | 9798 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 - Efficiency of 22.6% matches the \*\*TOPCon 600-650W\*\* median - At 229.5 W/m² power density, roof space requirements are typical for \*\*TOPCon 600-650W\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - Weight of 34.6 kg is 1.9 kg above \*\*TOPCon 600-650W\*\* median (32.7 kg) - verify structural support - In the top 26% for efficiency among all TOPCon panels ## 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-625hts-02-en-e70818df73e1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Lighter, +2.6 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Lighter, +2.4 pp, +5 yr warranty | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +50 W, lighter, +2.2 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +50 W, lighter, +2.2 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Lighter, +2.2 pp, +5 yr warranty | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +50 W, +2.2 pp, +5 yr warranty | | [Techwise Solar TW-615HT-02-595W](https://comparepv.com/panel/techwise-solar-tw-615ht-02-595w) | 595 W | -25 W, lighter, +5 yr warranty | | [Techwise Solar TW-600HT-02-600W](https://comparepv.com/panel/techwise-solar-tw-600ht-02-600w) | 600 W | Lighter, -1.1 pp, +5 yr warranty | | [Techwise Solar TW-605HT-02-605W](https://comparepv.com/panel/techwise-solar-tw-605ht-02-605w) | 605 W | Lighter, -0.9 pp, +5 yr warranty | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +60 W, lighter, +2.6 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +55 W, lighter, +2.4 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +80 W, +2.4 pp, +5 yr warranty | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +75 W, +2.3 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/techwise-solar-tw-620hts-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 and alternatives filtered by how closely they match these dimensions.