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Jetion Brand review

JT445SNt(B)

445 Wp TOPCon Bifacial 85%
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 9,435 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.30
Strong · top 17%
Density (Wp/m²)
222.7
Typical · median 220.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
23.7
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The JT SNt(B) series from Jetion Solar is a dual-glass module lineup built for installations that demand maximum durability and stable output over decades of operation. The panels rely on bifacial TOPCon technology paired with half-cut monocrystalline cells, capturing additional rear-side reflected light and meaningfully lowering the levelized cost of energy (LCOE) across the system's full lifecycle. The use of a multi busbar (MBB) cell structure reduces resistive losses and improves resistance to micro-cracks, resulting in greater reliability under the stresses of transport and installation. Unlike conventional backsheet modules, the dual-glass construction stands up far better to moisture, UV exposure, and repeated thermal cycling, which translates into noticeably slower power degradation over time. The JT SNt(B) series works equally well for rooftop installations and ground-mounted or commercial projects, where high resistance to mechanical damage and a long-term product warranty matter most. It's a solid choice for investors who expect low maintenance costs, consistent performance throughout the module's service life, and compatibility with the higher DC system voltages typical of large-scale solar farms.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 22.00% Strong · top 17% 5,100
Power density 222.7 220.2 Typical 5,302
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 53.3 51.4 Typical 7,098
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 2 caution
Best for

Commercial, utility-scale and shaded-installations.

Strengths
22.30% module efficiency

Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%.

What owners get
Bifacial N-TOPCon technology

Half-cut monocrystalline N-type TOPCon cells combined with a dual-glass construction allow the module to capture additional energy reflected off the ground (albedo), which can boost energy yield by up to double digits versus monofacial modules on bright ground surfaces or roofs.

30-year power warranty

The manufacturer offers a linear 30-year power output warranty, matching the best-in-class offerings among dual-glass TOPCon bifacial modules and clearly exceeding the standard 25-year warranties found in some competing products, such as the Axitec AXIbiperfect GR WB.

MBB design resists microcracks

The multi-busbar (MBB) cell structure reduces resistive losses and increases resistance to microcracks, meaningfully lowering the risk of power degradation during transport, installation, and long-term operation in large ground-mount plants.

BloombergNEF Tier-1 status

Jetion Solar (founded in 2004) is listed on BloombergNEF's Tier 1 manufacturer list, confirming its modules have been financed by at least six independent commercial banks — reinforcing bankability for projects using the JT SNt(B) series.

Competitive efficiency up to 23%

Peak efficiency of 23% puts the series on par with leading peer comparables (Phono Solar Draco N-TOPCon at 23.02%, SunKean SKT440~460M12-96D4 at 23.02%) and clearly ahead of the Axitec AXIbiperfect GR WB (22.54%).

Trade-offs
Peak efficiency trails the segment leader

The 23.0% maximum efficiency is marginally lower than the top comparable TOPCon modules on the market — the Phono Solar Draco and SunKean SKT440~460M12-96D4 reach 23.02%. The gap is minor but could matter for roof-constrained projects seeking maximum power density.

12-year product warranty trails select competitors

The materials and workmanship warranty is 12 years, while some Tier-1 manufacturers in the bifacial TOPCon segment already standardize on 15-year product warranties — a factor investors comparing total service-risk cost may weigh.

Notes from the database
  • At 22.3% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • Power density of 222.7 W/m² matches the TOPCon 400-450W median
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 23.7 kg (1.7 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
  • Bifacial design (85% factor) captures reflected light - adds 4-13% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Strong Segment median 22.00%
Vmpp · Impp 29.69 V · 14.99 A Operating point at max power
Voc · Isc 35.50 V · 15.99 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 23.7 kg Typical Typical · median 22.0 kg
Cells 96 · TOPCon Monocrystalline
Bifaciality 85 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.240 · 0.045 %/°C
NOCT 43 °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 389 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Jetion in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 445 Wp appear here. The rest cover the whole series.

JT445SNt(B) I-V Curves at Different Irradiance Levels (Cell Temperature 25°C) JT445SNt(B) I-V Curves at Different Irradiance Levels (Cell Temperature 25°C) 445 W

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
-0.290 %/°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.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Jetion JT445SNt(B) 445 W 22.30% -0.290 23.7 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +2.5 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, cooler, +2.2 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, cooler, +2.2 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, lighter, +2.0 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, cooler, +2.0 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +2.0 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, cooler, +2.0 pp
JT440SNt(B) 440 W 22.00% -0.290 23.7 kg -0.3 pp
JT450SNt(B) 450 W 22.50% -0.290 23.7 kg Very close match
JT455SNt(B) 455 W 22.80% -0.290 23.7 kg +10 W, +0.5 pp
JT460SNt(B) 460 W 23.00% -0.290 23.7 kg +15 W, +0.7 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, cooler, +2.4 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +55 W, cooler, +2.2 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +55 W, cooler, +2.2 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How does the JT SNt(B) series differ from standard monofacial Jetion panels?
The key difference is the glass-glass (double-glass) construction combined with bifacial TOPCon cells. The panel recovers additional energy reflected from the ground, increasing energy yield by up to several percent compared to classic backsheet modules. The glass on both sides also better protects the cells from moisture and degradation, resulting in a longer system lifespan.
What warranty comes with the JT SNt(B) panels?
Jetion offers a 12-year product warranty and a 30-year linear power output warranty. This means the manufacturer commits to maintaining a defined performance level over three decades of operation, which is standard for premium-class bifacial modules and reflects confidence in the durability of the double-glass construction.
Are JT SNt(B) panels suitable for large-scale solar farms?
Yes, the JT SNt(B) series, with power output up to 460 Wp, is compatible with elevated DC voltage systems typical of commercial and ground-mount installations. The high mechanical resistance of the double-glass construction and stable long-term productivity make it well suited for projects requiring low maintenance costs and predictable LCOE.
What is TOPCon technology and why is it better than PERC?
TOPCon (Tunnel Oxide Passivated Contact) is a monocrystalline cell technology that delivers higher efficiency and lower recombination losses than older PERC technology. In practice, this means higher power output from the same panel area and better performance at high temperatures, which matters in summer when panels heat up on the roof.
How much extra energy does bifaciality add in JT SNt(B) panels?
The actual gain from bifaciality depends on ground albedo, mounting height, and tilt angle, but under typical conditions (light-colored ground, gravel, white roofing) you can expect an additional 5-15% energy yield compared to a monofacial panel. The best results are achieved with ground-mount or carport installations, where the rear side has unobstructed access to reflected light.
Does the MBB multi-busbar structure in JT SNt(B) improve panel durability?
Yes, the multi-busbar (MBB) structure reduces the distance between conductive paths on the cell, lowering resistive losses and distributing mechanical stress across more connection points. This makes the cells less prone to microcracks during transport, installation, and cyclic thermal loading, directly reducing power degradation over time.
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