--- title: "G-STAR GSN7S54T-430BB 430W Solar Panel - Specs & Review | ComparePV" description: "G-STAR GSN7S54T-430BB 430W solar panel. Specs: 22.02% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/g-star-gsn7s54t-430bb" updated: 2026-09-11 --- # G-STAR GSN7S54T-430BB Middle of its segment, weak in heat 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** G-STAR - **Model:** GSN7S54T-430BB - **Series:** N-Type CleanEdge GSN7S54T - **Rated power:** 430 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 400-450 W (321 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 430 W | 430 W | Typical | | | Module efficiency | 22.02% | 21.91% | Typical | 6,329 | | Power density | 220.2 | 218.3 | Typical | 6,481 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | Weight (kg) | 22.0 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.02% | 21.91% | Typical | 6,329 | | Power density | 220.2 | 218.3 | Typical | 6,481 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 25% | 6,093 | | Weight per kWp | 51.2 | 51.2 | Typical | 4,522 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 25% of the N-type 400-450 W segment, against a median of -0.290. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 430 W - **Efficiency:** 22.02 % - **Voltage at Pmax (Vmp):** 31.88 V - **Current at Pmax (Imp):** 13.49 A - **Open-circuit voltage (Voc):** 38.49 V - **Short-circuit current (Isc):** 14.23 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 32 mm - **Weight:** 22.0 kg - **Area:** 1.95 m2 - **Power density:** 220.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 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:** 376 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6329 of 14005 | | Power density | 6481 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 4522 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Patented CleanEdge Technology (USPTO)** - The absence of a protruding front-frame lip is a USPTO-patented design that eliminates dust and water accumulation at the frame edge. G-STAR claims 6–15% higher energy yield over the module's full service life compared to conventional frame constructions — a particularly meaningful advantage at low roof tilt angles and in high-soiling environments. - **N-type TOPCon – Low Degradation and LID/LeTID Resistance** - N-type TOPCon cells exhibit an annual degradation rate of approximately 0.4–0.5%, versus approximately 0.6–0.8% for PERC modules, and their material structure provides practical immunity to both LID and LeTID. Combined with a 30-year linear power warranty, this translates into genuinely more stable energy yield over three decades of operation. - **30-Year Linear Power Warranty** - The manufacturer offers a 30-year power warranty — five years longer than the 25-year standard applied by most competitors in this price segment, including KDM Kingdom Solar. The extended warranty directly reduces investment risk when calculating LCOE for both residential prosumer and commercial PV installations. - **Up to 22.53% Efficiency – Premium Segment Level** - The peak efficiency of 22.53% matches the Seraphim Nebula (22.53%) and exceeds KDM Kingdom Solar (22.5%) at the same 440 Wp power class. This places the series at the very top of available comparable products within this power category. - **All-Black Aesthetics and Self-Cleaning Effect** - The uniform black surface with no visible front-frame elements meets the aesthetic requirements of residential prosumer installations and commercial properties. According to the manufacturer's specifications, natural rainwater runoff enabled by the frameless front edge reduces required cleaning frequency to once per year, lowering O&M service costs. ## Cons - **No Tier-1 BNEF Status** - G-STAR does not appear on BloombergNEF Tier-1 lists (verified Q1 2026), while some competitors in this segment — such as Seraphim — hold that status. This may complicate or prevent securing non-recourse bank financing for large commercial installations and may reduce product acceptance among PV project finance institutions. - **Lower Efficiency Than Luxor Solar in This Segment** - The series' peak efficiency of 22.53% is 0.33 percentage points below the Luxor Solar ECO LINE N-TYPE TOPCON NON-REFLECT (22.86%) at an identical peak power of 440 Wp. For installations with constrained roof area, this gap translates into the need to deploy additional modules or accept a lower total energy yield. - **2024 Product Launch – No Long-Term Field Performance Data** - The GSN7S54T entered the market in 2024, meaning no independent multi-year comparative studies or real-world operational data are yet available to confirm the claimed durability and self-cleaning effectiveness. For investors requiring a documented performance track record, this represents a tangible risk factor. ## About this series The G-STAR N-Type CleanEdge GSN7S54T series is designed to effectively reduce energy losses in areas where standard modules experience faster performance degradation due to dirt and moisture. A key feature is the **CleanEdge construction with a "clean edge"** - without the typical protruding edge from the front, preventing water and dirt from accumulating around the frame, and allowing rain to more effectively support the self-cleaning effect. This translates to **lower power losses and more stable energy production**, particularly on low-slope roofs and in dusty environments. Inside, the modules feature **N-type monocrystalline cells in TOPCon technology**, which are valued for their low degradation and good performance in less favorable weather conditions. The modules also have **PID resistance and reduced LID-LETID**, which enhances the safety of the investment over the long term. This solution is ideal for residential and commercial installations, where not only the power output is important, but also lower cleaning costs, fewer downtime periods, and an aesthetically pleasing, all-black appearance. ## Notable figures - Efficiency of 22.0% matches the \*\*N-type 400-450W\*\* median - Power density of 220.2 W/m² matches the \*\*N-type 400-450W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*N-type 400-450W\*\* median - In the top 45% for efficiency among all N-type panels ## Questions ### What is CleanEdge technology in the G-STAR GSN7S54T panels, and does it actually help on a dirty roof? CleanEdge is a frame design in which the frame does not protrude above the front glass of the module. This allows rainwater to flow freely across the entire surface, carrying away dust and contaminants without pooling at the edge. The manufacturer states that the self-cleaning effect can increase energy yield by 6–15% compared to standard modules under dusty conditions or on low-tilt roofs. ### What warranty does the G-STAR N-Type CleanEdge GSN7S54T series carry? The GSN7S54T series is backed by a 25-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means the manufacturer guarantees a defined minimum energy production level for three decades. It is one of the longer power warranties currently available on the TOPCon module market. ### Are the G-STAR GSN7S54T 440 W panels suitable for a low-tilt roof, such as one pitched at 10–15 degrees? Yes, and the CleanEdge series is specifically recommended for exactly these applications. At low tilt angles, conventional panels accumulate soiling more quickly because rainfall does not drain with sufficient velocity. The CleanEdge frame profile, which has no protruding lip, minimizes this issue, resulting in more stable year-round energy production without the need for frequent cleaning. ### How do the N-type TOPCon cells in the GSN7S54T differ from standard PERC cells? N-type TOPCon cells are built on an N-type silicon substrate, which is less susceptible to light-induced degradation (LID) than the P-type silicon used in PERC cells. In practice, this translates to a slower efficiency decline over the years of operation and better performance under diffuse irradiance conditions — for example, on overcast days or under partial shading. The GSN7S54T series achieves a module efficiency of up to 22.53%. ### Does the all-black aesthetic of the G-STAR GSN7S54T panels negatively affect their performance? Under standard weather conditions, the difference is negligible. The dark frame and backsheet absorb slightly more heat during extreme high temperatures, which may cause a marginal reduction in instantaneous power output; however, TOPCon modules have a favorable temperature coefficient of power. The all-black appearance is frequently a priority for installations on visible roof sections and does not represent a meaningful performance compromise in a Central European climate. ### Is G-STAR a reputable manufacturer, and is investing in this panel series a sound decision? G-STAR (G-Star Pte. Ltd.) does not appear on the Tier 1 lists published by major rating agencies; however, panels from this brand are distributed in European and North American markets, and the GSN7S54T series has technical documentation listed in databases such as ENF Solar. Before purchasing, it is advisable to confirm that the distributor will provide warranty service within the country for the full 25-year coverage period — this is more important than Tier 1 status alone. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/cleanedge-topcon-bifacial-module-gsn7s54t-440bb-d3b4f996a1f3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A480-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a480-mah54mw) | 480 W | +50 W, cooler, +2.1 pp | | [Gokin GK-5-54HG-480M](https://comparepv.com/panel/gokin-gk-5-54hg-480m) | 480 W | +50 W, cooler, +2.1 pp | | [Jinko Solar JKM480N-48QL6-DB-F2-EU](https://comparepv.com/panel/jinko-solar-jkm480n-48ql6-db-f2-eu) | 480 W | +50 W, cooler, +2.0 pp | | [Gamko New Energy GKA96N-PRO-480W](https://comparepv.com/panel/gamko-new-energy-gka96n-pro-480w) | 480 W | +50 W, lighter, +2.0 pp | | [G-STAR GSN7S54T-420BB](https://comparepv.com/panel/g-star-gsn7s54t-420bb) | 420 W | -10 W, -0.5 pp | | [G-STAR GSN7S54T-425BB](https://comparepv.com/panel/g-star-gsn7s54t-425bb) | 425 W | -0.3 pp | | [G-STAR GSN7S54T-435BB](https://comparepv.com/panel/g-star-gsn7s54t-435bb) | 435 W | +0.3 pp | | [G-STAR GSN7S54T-440BB](https://comparepv.com/panel/g-star-gsn7s54t-440bb) | 440 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +80 W, cooler, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +65 W, cooler, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +75 W, cooler, +2.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +70 W, cooler, +2.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +70 W, cooler, +2.5 pp | --- Source: https://comparepv.com/panel/g-star-gsn7s54t-430bb 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.