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S-Energy Brand review

SL65-54TDP-425R

425 Wp TOPCon Bifacial 70%
ComparePV verdict

Solid all-round for its segment

Rank 10,343 of 14,005
Compare panels Datasheet PDF
Power (Wp)
425
Typical for its class
Efficiency (%)
21.78
Typical · median 22.00%
Density (Wp/m²)
217.8
Typical · median 220.2
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
23.5
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

S-Energy SL65-54TDP photovoltaic panels are an advanced solution based on N-type TopCon cell technology, which provides significantly higher efficiency compared to standard P-type modules. The bifacial dual glass design allows for effective use of reflected light, which translates into a real increase in energy yields even in difficult lighting conditions or under heavy cloud cover. Thanks to the use of double glass, this series exhibits exceptional resistance to PID degradation and negative atmospheric factors, guaranteeing stable operation for decades. It is an ideal choice for investors looking for components with an increased standard of fire safety, as the glass coating on both sides of the module minimizes the risk of ignition. These models are perfect for both demanding prosumer installations and commercial projects, where maximum power density and a low temperature coefficient are key. S-Energy SL65-54TDP stands out from the competition with rigorous Korean quality control, which effectively eliminates problems with micro-cracks and ensures long-term stability of electrical parameters. By choosing this series, you invest in durability that directly accelerates the return on investment by minimizing energy losses resulting from the natural aging of cells.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.78% 22.00% Typical 7,206
Power density 217.8 220.2 Typical 7,044
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 55.3 51.4 Typical 9,746
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 0 caution
Notes from the database
  • At 21.8% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • Power density of 217.8 W/m² matches the TOPCon 400-450W median
  • At -0.30%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 23.5 kg, this panel is 1.5 kg heavier than the TOPCon 400-450W median (22.0 kg) - more demanding for installation crews
  • 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 425 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.78 % Typical Segment median 22.00%
Vmpp · Impp 32.15 V · 13.22 A Operating point at max power
Voc · Isc 38.21 V · 14.30 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1133×30 mm · 1.95 m² of roof
Weight 23.5 kg Typical Typical · median 22.0 kg
Cells 54 · TOPCon Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 371 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by S-Energy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 425 Wp appear here. The rest cover the whole series.

Irradiance coefficient Irradiance coefficient Whole series Temperature coefficient Temperature coefficient 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
-
With bifacial gain
-

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
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Alternatives

All S-Energy panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
S-Energy SL65-54TDP-425R 425 W 21.78% -0.300 23.5 kg You are here
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +50 W, +2.2 pp, +10 yr warranty
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +40 W, lighter, +2.0 pp
JAT54S40-475/LR 475 W 23.80% -0.260 19.3 kg +50 W, lighter, +2.0 pp
TWMNH-48HW475 475 W 23.80% -0.280 23.7 kg +50 W, cooler, +2.0 pp
CHSM48RN(DG)/F-BH-475 475 W 23.80% -0.290 24.5 kg +50 W, cooler, +2.0 pp
AIKO-A475-MCE54Mw 475 W 23.80% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A475-MAH54Mw 475 W 23.80% -0.260 21.5 kg +50 W, cooler, +2.0 pp
SL65-54TDP-410R 410 W 21.01% -0.300 23.5 kg -15 W, -0.8 pp
SL65-54TDP-415R 415 W 21.27% -0.300 23.5 kg -10 W, -0.5 pp
SL65-54TDP-420R 420 W 21.52% -0.300 23.5 kg -0.3 pp
SL65-54TDP-430R 430 W 22.04% -0.300 23.5 kg +0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +85 W, cooler, +3.2 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +70 W, cooler, +3.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +80 W, cooler, +2.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +65 W, cooler, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +75 W, cooler, +2.7 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 warranty comes with the S-Energy SL65-54TDP panels?
The SL65-54TDP series carries a 12-year product warranty and a 30-year linear power output warranty. Over those three decades, S-Energy guarantees the panels will retain specified minimum power levels — one of the longer commitments in this product class. The dual-glass construction and N-type TOPCon cell technology actively support meeting those performance targets throughout the entire service life.
How does the TOPCon technology in the SL65-54TDP differ from standard PERC panels?
N-type TOPCon cells in the SL65-54TDP feature a tunnel-oxide passivated contact layer that reduces charge carrier recombination. In practical terms this means higher efficiency, a lower temperature coefficient (less power loss on hot days), and slower long-term degradation compared to typical P-type PERC modules. For the system owner this translates to more kilowatt-hours from the same roof area over the full system lifetime.
Does the bifacial dual-glass design of the SL65-54TDP actually boost energy yield on a pitched roof?
Bifacial gain is greatest with a high-albedo surface beneath the panels — white membranes, light gravel, or reflective metal roofing can add several percent of additional yield. On a dark tile roof the rear-side gain is smaller, but the dual-glass construction still serves as robust protection against moisture ingress, UV exposure, and micro-cracking, reducing LID degradation regardless of the roof color.
Are S-Energy SL65-54TDP panels safer than conventional modules in terms of fire risk?
Yes. The dual-glass design — two layers of tempered glass replacing the conventional glass-and-backsheet structure — removes the flammable polymer backsheet entirely. In case of overheating or a wiring fault, the fire risk is significantly lower than with standard backsheet modules. This is particularly relevant for installations on timber-frame buildings or in facilities where insurers require elevated fire safety standards.
Is the 430 Wp S-Energy SL65-54TDP suitable for a typical residential rooftop installation?
Yes, 430 Wp sits firmly in the premium residential segment. Ten panels yield a roughly 4.3 kWp system, sufficient to cover the average single-family home's consumption. The 54-cell half-cut format keeps module dimensions manageable for standard roof sections, and the high per-panel wattage reduces the total number of modules needed to reach the target system size, simplifying BoS design.
Where is S-Energy headquartered, and does Korean quality control actually affect the durability of the SL65-54TDP?
S-Energy is headquartered in South Korea and has been manufacturing PV modules for over two decades. Korean production oversight means rigorous EL testing for micro-cracks and tight electrical parameter matching on the assembly line. The result is a narrow power bin classification and a lower probability of hidden structural defects driving early-stage degradation — factors that directly support stable LCOE over the system's lifetime.
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