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G-STAR GSN7S54T-430BB
G-STAR Brand review

GSN7S54T-430BB

430 Wp N-type
ComparePV verdict

Middle of its segment, weak in heat

Rank 7,500 of 14,005
Compare panels Datasheet PDF
Power (Wp)
430
Typical for its class
Efficiency (%)
22.02
Typical · median 21.91%
Density (Wp/m²)
220.2
Typical · median 218.3
Temp (%/°C)
-0.300
Weak · bottom 25%
Weight (kg)
22.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

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.

Ranking

321 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall 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
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 4 caution
Best for

Residential and commercial.

Not ideal for

Hot climates.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 25% of the N-type 400-450 W segment, against a median of -0.290.

What owners get
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.

Trade-offs
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.

Notes from the database
  • 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

Specifications

Open datasheet PDF
Nominal power (Pmax) 430 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.02 % Typical Segment median 21.91%
Vmpp · Impp 31.88 V · 13.49 A Operating point at max power
Voc · Isc 38.49 V · 14.23 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×32 mm · 1.95 m² of roof
Weight 22.0 kg Typical Typical · median 22.0 kg
Cells 108 · N-type Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 25% of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 376 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by G-STAR in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 430 Wp appear here. The rest cover the whole series.

IV-Curve (Power vs Voltage) IV-Curve (Power vs Voltage) Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.300 %/°C against a segment median of -0.290
-

Alternatives

All G-STAR panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
G-STAR GSN7S54T-430BB 430 W 22.02% -0.300 22.0 kg You are here
AIKO-A480-MAH54Mw 480 W 24.10% -0.260 21.5 kg +50 W, cooler, +2.1 pp
GK-5-54HG-480M 480 W 24.10% -0.260 21.0 kg +50 W, cooler, +2.1 pp
JKM480N-48QL6-DB-F2-EU 480 W 24.02% -0.260 24.4 kg +50 W, cooler, +2.0 pp
GKA96N-PRO-480W 480 W 24.02% -0.300 21.0 kg +50 W, lighter, +2.0 pp
GSN7S54T-420BB 420 W 21.51% -0.300 22.0 kg -10 W, -0.5 pp
GSN7S54T-425BB 425 W 21.76% -0.300 22.0 kg -0.3 pp
GSN7S54T-435BB 435 W 22.28% -0.300 22.0 kg +0.3 pp
GSN7S54T-440BB 440 W 22.53% -0.300 22.0 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +80 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +65 W, cooler, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +75 W, cooler, +2.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +60 W, cooler, +2.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +70 W, cooler, +2.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +70 W, cooler, +2.5 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
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.
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