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Jolywood Brand review

JW-HT108N-R3-430W

430 Wp TOPCon
ComparePV verdict

Middle of its segment, modest efficiency

Rank 10,357 of 14,005
Compare panels Datasheet PDF
Power (Wp)
430
Typical for its class
Efficiency (%)
21.52
Weak · bottom 23%
Density (Wp/m²)
215.2
Weak · bottom 23%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
21.7
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Jolywood JW-HT108N series consists of advanced modules based on innovative N-type TOPCon technology, which redefines efficiency standards in rooftop installations. By using N-type cells, these panels almost completely eliminate the problem of light-induced degradation (LID), resulting in a significantly longer lifespan and stable energy production for decades. A unique feature of this series is its excellent efficiency in low-light conditions, which in the Polish climate allows for effective electricity generation even on cloudy days. The 108-cell design makes the modules compact and relatively lightweight, which significantly facilitates installation on the roofs of residential buildings with limited space. Investing in these panels means, above all, a higher energy yield per square meter and the assurance of an exceptionally slow power decline over time. Unlike standard older-type solutions, the JW-HT108N series is characterized by a low temperature coefficient, thanks to which the modules maintain high efficiency even during summer heatwaves. It is an ideal choice for investors looking for premium technology that combines modern aesthetics with maximum resistance to cell aging processes. By choosing Jolywood JW-HT108N, you gain reliability and a faster return on investment by minimizing losses and ensuring trouble-free operation in real, variable weather conditions.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.52% 22.00% Weak · bottom 23% 7,853
Power density 215.2 220.2 Weak · bottom 23% 7,816
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 50.5 51.4 Typical 3,841
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 · 3 caution
Best for

Residential and hot-climate.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Watch-outs
21.52% module efficiency

Bottom 23% of the TOPCon 400-450 W segment, against a median of 22.00%.

215.2 watts per square metre

Bottom 23% of the TOPCon 400-450 W segment, against a median of 220.2.

What owners get
J-TOPCon 2.0 – zero LID

N-type cells with J-TOPCon 2.0 technology eliminate light-induced degradation (LID). Annual power degradation is rated at 0.40%/year (post year-one) vs. 0.55–0.70%/year for PERC modules, translating to a cumulative 3–5% higher energy yield advantage over a 30-year system lifetime.

Premium efficiency – up to 22.77%

The JW-HT108N series reaches a peak module efficiency of 22.77%, matching the top peer comparables in the segment (Sunlike SKT420~455M10-108D6: 22.80%, IBC Solar LS-TA2: 22.80%) and significantly exceeding the Waaree ARKA Series (20.93%). On a 20 m² roof, this translates to approximately 1 additional kWp vs. a 20.9%-efficient alternative.

30-year linear power warranty

Jolywood guarantees ≥89.4% of nameplate power after 25 years and ≥87.4% after 30 years at a degradation rate of 0.40%/year. Standard PERC Tier-1 competitors (e.g., JA Solar, Trina Solar) cap their power warranty at 25 years at approximately 84.8%, a difference of nearly 2.6 percentage points after a quarter-century of operation.

Low temperature coefficient (-0.30%/°C)

According to the official Jolywood datasheet, the temperature coefficient of Pmax is -0.30%/°C — among the lowest for monofacial 108-cell TOPCon modules. At a module surface temperature of +65°C on a hot summer day, the panel loses approximately 12% of rated power, compared to 15–17% for typical PERC modules.

BNEF Tier-1 bankable manufacturer

Jolywood is listed on the official BNEF Tier-1 Solar Module Manufacturer ranking (confirmed Q2 2026), certifying its ability to supply modules to projects financed by independent commercial banks. This reduces financing risk for lenders and simplifies loan approval for larger residential and commercial PV installations.

Trade-offs
12-year product warranty only

The JW-HT108N series carries only a 12-year product warranty (covering material and workmanship defects), while leading premium-segment manufacturers — SunPower, Q CELLS Q.PEAK DUO, and even newer Jolywood lines (e.g., JW-HT108N-R3 Asia variant) — offer 15–25 years. The shortened product warranty period may be a barrier for investors with long financing horizons or institutions requiring a minimum 15-year equipment protection clause.

Notes from the database
  • At 21.5% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • At 215.2 W/m², this panel generates 5.0 W/m² less per unit area than TOPCon 400-450W median (220.2 W/m²)
  • Temperature coefficient of -0.30%/°C matches the TOPCon 400-450W median
  • #7853 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 430 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.52 % Weak Segment median 22.00%
Vmpp · Impp 32.77 V · 13.12 A Operating point at max power
Voc · Isc 38.17 V · 13.93 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 21.7 kg Typical Typical · median 22.0 kg
Cells 108 · TOPCon Monocrystalline
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 376 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Jolywood 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.

I-V Characteristics At Different Irradiations I-V Characteristics At Different Irradiations Whole series P-V Characteristics At Different Irradiations P-V Characteristics At Different Irradiations Whole series I-V Characteristics At Different Temperatures I-V Characteristics At Different Temperatures 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
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Jolywood JW-HT108N-R3-430W 430 W 21.52% -0.300 21.7 kg You are here
AIKO-A480-MAH54Mw 480 W 24.10% -0.260 21.5 kg +50 W, cooler, +2.6 pp
GK-5-54HG-480M 480 W 24.10% -0.260 21.0 kg +50 W, cooler, +2.6 pp
JKM480N-48QL6-DB-F2-EU 480 W 24.02% -0.260 24.4 kg +50 W, cooler, +2.5 pp
GKA96N-PRO-480W 480 W 24.02% -0.300 21.0 kg +50 W, +2.5 pp
JW-HT108N-R3 435W 435 W 21.80% -0.280 21.7 kg Cooler, +0.3 pp
JW-HT108N-R3 440W 440 W 22.00% -0.280 21.7 kg +10 W, cooler, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +80 W, cooler, +3.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +65 W, cooler, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +75 W, cooler, +3.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +60 W, cooler, +3.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +70 W, cooler, +3.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +70 W, cooler, +3.0 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
What is TOPCon technology in the Jolywood JW-HT108N panels and is it worth the premium price?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that significantly reduces electron recombination losses. In practice it delivers higher module efficiency, a lower temperature coefficient (-0.30%/°C), and near-zero light-induced degradation (LID). Compared to standard PERC cells, the JW-HT108N series generates more energy per square meter and degrades more slowly over time, resulting in a better return on investment over the system's lifetime.
What warranty is included with the Jolywood JW-HT108N panels and what does it cover?
The JW-HT108N series comes with a 12-year product warranty covering material and workmanship defects, and a 30-year linear power output warranty. The power warranty guarantees at least 87.4% of rated power after 30 years, with an annual degradation rate of approximately 0.4%. Jolywood is a BloombergNEF Tier 1 manufacturer, which provides additional confidence in the long-term validity of these commitments.
Will Jolywood JW-HT108N panels perform well in cloudy conditions and during winter?
Yes. The N-type TOPCon cells in the JW-HT108N series offer superior low-light performance compared to P-type PERC cells, which is especially relevant in climates with frequent overcast skies. In addition, the low temperature coefficient (-0.30%/°C) means that on cold winter days the modules operate at higher instantaneous efficiency than on hot summer days, making them a well-suited choice for northern European and Central European climates.
What are the dimensions and weight of the JW-HT108N-455 panel — is it easy to install on a residential rooftop?
The 455 Wp JW-HT108N panel measures approximately 1722 × 1134 × 30 mm and weighs around 20 kg. This makes it a relatively compact and lightweight module for its power class, simplifying transport on pitched roofs and installation on standard aluminum racking. The 108-cell layout achieves high power output in a smaller footprint than older 60- or 72-cell modules, which is a significant advantage on rooftops with limited available area.
How much energy will a rooftop system built from JW-HT108N-455 panels generate annually?
In Central Europe, a typical rooftop PV system yields roughly 900–1 100 kWh per installed kWp per year, depending on location, roof tilt, and azimuth. A 6 kWp system consisting of approximately 14 JW-HT108N-455 panels can be expected to produce around 5 400–6 600 kWh annually. With an annual power degradation rate of only ~0.4%, the system will still deliver over 90% of its initial output after 25 years of operation.
How does the Jolywood JW-HT108N series compare to older PERC modules and is it worth the higher cost?
The key differences come down to cell technology — N-type TOPCon vs. P-type PERC. TOPCon offers near-zero LID (vs. ~2–3% first-year degradation for PERC), higher module efficiency, better performance at elevated temperatures and in low-light conditions, and a longer power warranty (30 years). Over a 20–30 year system lifetime, the cumulative energy yield advantage can amount to several hundred kWh, which meaningfully improves LCOE and shortens the payback period.
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