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Jetion JT590SZk(B)
Jetion Brand review

JT590SZk(B)

590 Wp HJT Bifacial 85%
ComparePV verdict

Solid all-round for its segment

Rank 3,454 of 14,129
Compare panels Datasheet PDF
Power (Wp)
590
Typical for its class
Efficiency (%)
22.60
Typical · median 22.48%
Density (Wp/m²)
225.8
Typical · median 224.8
Temp (%/°C)
-0.240
Typical · median -0.240
Weight (kg)
32.6
Typical · median 32.6 kg
Warranty (yrs)
30
Typical · median 30 yrs

The JT SZk(B) series consists of dual-glass monocrystalline modules built on HJT heterojunction technology with N-type cells, combining a thin-film heterojunction structure with half-cut monocrystalline silicon in a multi-busbar layout. This design delivers high conversion efficiency even under diffuse light, making these panels a strong fit for Poland's climate with its frequent cloud cover. The use of bifacial power generation allows for extra energy yield by capturing light reflected off the ground, which is especially effective in installations on bright rooftops or ground-mount systems. The series also stands out for its low temperature coefficient, keeping power losses to a minimum during hot summer days and ensuring stable output when temperatures rise. The glass-glass construction along with resistance to LID and PID translates into long-term durability and minimal power degradation over time. The panels withstand mechanical loads of up to 5400 Pa of snow and 2400 Pa of wind, ensuring safety in demanding weather conditions. The manufacturer backs the series with a 30-year power warranty, guaranteeing performance degradation below 10 percent, making this series attractive for both residential investors and commercial solar farm projects.

Ranking

32 panels in the segment HJT 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.60% 22.48% Typical 3,716
Power density 225.8 224.8 Typical 3,893
Temperature coefficient -0.240 -0.240 Typical 13
Weight per kWp 55.3 55.2 Typical 9,777
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 · 2 caution
Best for

Utility-scale, commercial, hot-climate and shaded-installations.

What owners get
High-efficiency N-type HJT cells

22.2-23% efficiency thanks to heterojunction HJT N-type cells places the series near the top of the segment (Tongwei 72HD 23.2%, Powitt M10 23.23%), clearly above Talesun BISTAR (21.5%). The heterojunction structure also improves yield under diffuse light, relevant in Poland's often overcast climate.

Bifacial dual-side energy generation

Glass-glass construction with bifacial cells enables additional energy gain from reflected light, particularly cost-effective when mounted on light-colored roofs or ground-mount farm installations.

30-year linear power warranty

The manufacturer guarantees power retention above 87.4% after 30 years, matching the standard offered by leading tier-1 manufacturers (LONGi, JinkoSolar, Trina) for premium N-type modules.

Low temperature coefficient and LID/PID resistance

HJT technology features a lower temperature coefficient than conventional PERC, limiting power losses during heat waves. LID and PID resistance ensures stable energy output and minimal degradation over time.

BNEF Tier-1 status and manufacturer track record

Jetion Solar (founded in 2004) holds Tier-1 status on the BloombergNEF Module Maker Tiering System, confirming project bankability and easing financing through commercial banks.

Trade-offs
15-year product warranty trails premium trend

The 15-year product warranty is shorter than what some premium HJT manufacturers now offer in 2026 (up to 25 years), even though the power warranty extends to 30 years. This can be a differentiating factor versus competing N-type series.

Peak efficiency slightly below segment leaders

The upper efficiency bound (23%) is marginally lower than peer comparables Powitt M10 (23.23%) and Tongwei 72HD (23.2%) at the same 600W max power, meaning slightly lower yield per m² for an identical installation footprint.

Notes from the database
  • At 22.6% efficiency, this panel is on par with typical HJT 550-600W modules
  • Power density of 225.8 W/m² matches the HJT 550-600W median
  • At -0.24%/°C, hot weather performance is typical for HJT 550-600W panels
  • Bifacial design (85% factor) captures reflected light - adds 4-13% yield on ground-mount or white roof
  • Ranked #3716 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 590 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.60 % Typical Segment median 22.48%
Vmpp · Impp 35.15 V · 16.79 A Operating point at max power
Voc · Isc 41.60 V · 17.59 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1096×35 mm · 2.61 m² of roof
Weight 32.6 kg Typical Typical · median 32.6 kg
Cells 110 · HJT Monocrystalline
Bifaciality 85 % Rear output as a share of front
Coefficient Pmax -0.240 %/°C Typical median -0.240 of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.3 % Equals 533 W guaranteed
Degradation 1.00 → 0.30 % 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 590 Wp appear here. The rest cover the whole series.

30-Year Linear Power Warranty 30-Year Linear Power Warranty 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
-0.240 %/°C against a segment median of -0.240
-
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 JT590SZk(B) 590 W 22.60% -0.240 32.6 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg -30 W, lighter, +2.2 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +50 W, lighter, +2.2 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -35 W, lighter, +2.0 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +45 W, lighter, +2.0 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +40 W, hotter, +1.8 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg -40 W, 16 kg lighter, +1.8 pp
JT580SZk(B) 580 W 22.20% -0.240 32.6 kg -10 W, -0.4 pp
JT585SZk(B) 585 W 22.40% -0.240 32.6 kg -0.2 pp
JT595SZk(B) 595 W 22.80% -0.240 32.6 kg Very close match
JT600SZk(B) 600 W 23.00% -0.240 32.6 kg +10 W, +0.4 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +90 W, lighter, +2.6 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +85 W, lighter, +2.4 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +110 W, hotter, +2.4 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +85 W, hotter, +2.4 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +105 W, hotter, +2.3 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +80 W, lighter, +2.2 pp

Found 72 panels of the same or similar size to this one, within ±10 mm. See them here Found 72 panels of the same or similar size to this one, within ±25 mm. See them here Found 1221 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 panels of the same or similar size to this one, within ±100 mm. See them here

About the JT SZk(B) series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

How does HJT cell technology in the Jetion JT SZk(B) series differ from standard monocrystalline PERC cells?
HJT (heterojunction) cells combine a thin amorphous silicon layer with N-type monocrystalline silicon, delivering higher conversion efficiency and better performance under low or diffuse light than conventional PERC cells. HJT also has a lower temperature coefficient, so the panel loses less power on hot days, while the half-cut, multi-busbar layout reduces resistive losses and improves resistance to microcracks.
Is it worth installing Jetion JT SZk(B) bifacial panels on a light-colored roof or on the ground?
Yes, bifacial power generation captures light reflected off the surface below, so mounting on a light-colored roof, gravel, or a ground-mount system with adequate clearance can add several to over a dozen percent extra energy yield compared to a monofacial module. The effect grows with the reflectivity and brightness of the surface beneath the panels.
What warranty comes with the Jetion JT SZk(B) series and what does it cover?
The manufacturer provides a 15-year product warranty and a 30-year linear power warranty, guaranteeing power output stays above 90 percent by the end of that period. The glass-glass construction along with LID and PID resistance further limit power degradation over time, making this series one of the more durable options on the market.
Can Jetion JT SZk(B) panels withstand heavy snow loads and strong wind?
Yes, modules in this series are certified for mechanical loads up to 5400 Pa of snow and 2400 Pa of wind, well above typical requirements for roofs in Central Europe. The glass-glass construction keeps panels rigid and mechanically resistant even under heavy winter snow cover.
What is the maximum power output in the Jetion JT SZk(B) series, and how many panels are needed for a typical 10 kWp system?
The highest-output variants in this series reach up to 600 Wp, meaning a 10 kWp system needs only about 17 panels, reducing the roof area and number of mounting points required compared to older, lower-efficiency modules.
Is Jetion a tier 1 manufacturer, and is it worth buying panels made in China?
Jetion is classified as a tier 1 manufacturer under Bloomberg NEF, reflecting financial stability and bankability for projects using these panels, regardless of manufacturing location in China. Tier 1 status matters for financed installations, since banks and lenders are more willing to approve equipment from proven, large-scale manufacturers.
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