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Jolywood JW-HD120N-R3-495
Jolywood Brand review

JW-HD120N-R3-495

495 Wp TOPCon Bifacial 80%
ComparePV verdict

Strong in heat, heavy for its output

Rank 7,653 of 14,005
Compare panels Datasheet PDF
Power (Wp)
495
Strong · top 4%
Efficiency (%)
22.40
Typical · median 22.52%
Density (Wp/m²)
223.9
Typical · median 225.2
Temp (%/°C)
-0.280
Strong · top 11%
Weight (kg)
27.3
Weak · 3.3 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Jolywood JW-HD120N (Black Series) are solar panels designed for maximum energy yield in demanding installation conditions - without compromising on aesthetics. Key features include N-type cells in TOPCon technology, which help minimize power degradation over time and ensure stable performance, even when traditional panels lose efficiency more quickly. The bifacial construction allows capturing additional energy from reflected light, effectively boosting the economic viability on bright rooftops, ground installations, or systems with appropriately designed backs. Meanwhile, the glass-glass build enhances resistance to moisture, loads, and micro-cracks, which is crucial for installations subjected to intense operation. The Black Series also emphasizes a full, sleek black appearance - highly valued in residential and modern commercial projects. This is an excellent choice for clients seeking to combine high energy yields, durability, and a cohesive appearance for your PV system.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.40% 22.52% Typical 4,774
Power density 223.9 225.2 Typical 4,873
Temperature coefficient -0.280 -0.290 Strong · top 11% 1,309
Weight per kWp 55.2 52.2 Weak · bottom 15% 9,577
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 · 3 caution
Best for

Residential and commercial.

Not ideal for

Weight-limited structures.

Strengths
-0.280 %/°C temperature coefficient

Top 11% of the TOPCon 450-500 W segment, against a median of -0.290.

Watch-outs
55.2 kg per kWp

Bottom 15% of the TOPCon 450-500 W segment, against a median of 52.2.

What owners get
Efficiency 22.2–23.3% – top of segment

Max. efficiency of 23.3% places the series above Canadian Solar TOPBiHiKu6 (22.8%) and nearly on par with Sunpro TOPCon 210R BIFACIAL (23.17%). The 22.2% lower bound applies only to the 490 Wp variant; the 510–515 Wp variants reach 23.1–23.3% within the same module footprint.

N-type TOPCon – zero LID, low degradation

N-type cell architecture eliminates Light Induced Degradation (LID) inherent to P-type PERC. The manufacturer-confirmed max. annual degradation of 0.40%/yr (Year 1: max. −1%) means the module retains at least 95.4% output after 10 years — approximately 2–3 percentage points more than comparable PERC products.

30-year linear performance warranty – 87.4% guaranteed

Jolywood guarantees a minimum of 87.4% of rated power after 30 years at 0.40%/yr degradation, making it one of the longest and most favorable performance warranties in its price class — most PERC modules offer 25 years down to ~84.8%.

Bifacial glass-glass construction

The glass-glass build improves mechanical resistance (up to 5,400 Pa snow load), reduces moisture ingress (lower PID risk), and protects cells against microcracks. The bifacial design enables 10–30% additional energy harvest from reflected irradiance — realistic on light-colored gravel ballast, white membranes, or ground surfaces with albedo ≥ 0.25.

BNEF Tier-1 bankable (since Q2 2026)

Jolywood joined the BloombergNEF Tier-1 bankable manufacturers list in Q2 2026 (list expanded to 42 producers). Tier-1 status confirms module eligibility for projects financed by independent commercial banks and simplifies insurance underwriting for commercial-scale installations.

Trade-offs
12-year product warranty

The product and workmanship warranty covers 12 years, which is shorter than the 15-year product warranty offered by Huasun (Aurora Pro series) for HJT modules in the same 490–515 Wp power class. For projects with a financing horizon beyond 12 years, the difference is material when pursuing latent-defect claims.

Bifacial yield highly albedo-dependent

The claimed 10–30% rear-side energy gain requires substrate albedo ≥ 0.25 and a minimum roof clearance of ~15–30 cm. Typical Polish pitched-roof installations with dark roof tiles or bituminous membranes have albedo of 0.05–0.12, limiting the actual bifacial gain to 2–6%. On standard rooftop systems the bifacial argument has a marginal impact on LCOE.

Notes from the database
  • Efficiency of 22.4% matches the TOPCon 450-500W median
  • Power density of 223.8 W/m² matches the TOPCon 450-500W median
  • At -0.28%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • At 27.3 kg, this panel is 3.3 kg heavier than the TOPCon 450-500W median (24.0 kg) - more demanding for installation crews
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 495 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.40 % Typical Segment median 22.52%
Vmpp · Impp 37.29 V · 13.27 A Operating point at max power
Voc · Isc 43.38 V · 14.06 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1950×1134×30 mm · 2.21 m² of roof
Weight 27.3 kg Weak Weak · 3.3 kg above median
Cells 120 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 11% 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 433 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 495 Wp appear here. The rest cover the whole series.

Linear Performance Warranty Linear Performance Warranty 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
-
With bifacial gain
-

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

Heat losses
-0.280 %/°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
Jolywood JW-HD120N-R3-495 495 W 22.40% -0.280 27.3 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +2.6 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.4 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +2.3 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.1 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +2.1 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +2.1 pp
JW-HT120N-R3-485 485 W 21.90% -0.280 24.0 kg -10 W, lighter, -0.5 pp
JW-HT120N-R3-490 490 W 22.20% -0.280 24.0 kg Lighter
JW-HD108N-R2-500 500 W 22.50% -0.280 27.3 kg Very close match
JW-HD120N-R3-500 500 W 22.60% -0.280 27.3 kg +0.2 pp
JW-HD108N-R2-505 505 W 22.70% -0.280 27.3 kg +10 W, +0.3 pp
JW-HT120N-R3-505 505 W 22.80% -0.280 24.0 kg +10 W, lighter, +0.4 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +65 W, lighter, +2.4 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +60 W, lighter, +2.2 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +55 W, lighter, +2.0 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +45 W, lighter, +2.0 pp

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Common questions

6 answered
What warranty does the Jolywood JW-HD120N Black Series come with?
The JW-HD120N series carries a 12-year product warranty covering material defects and workmanship, along with a 30-year linear power output warranty. Under the power warranty, the module must retain at least 87.4% of its rated capacity after 30 years, with annual degradation capped at 0.40% and first-year degradation at 1.00%. These figures are achievable because N-type TOPCon cells are free from LID (light-induced degradation) that affects older P-type PERC technology.
Does TOPCon technology in the Jolywood JW-HD120N actually improve low-light performance?
Yes, N-type TOPCon cells outperform conventional PERC cells under low irradiance conditions. The JW-HD120N series has a temperature coefficient of approximately -0.30%/°C, which means smaller power losses on hot days compared to older-generation modules. In temperate climates like Poland's, where a significant share of annual yield comes from diffuse and overcast conditions, this translates into measurably higher annual energy output over the system's lifetime.
Will the bifacial design of the JW-HD120N Black Series provide a real benefit on a typical pitched roof?
On a standard pitched roof with dark roof tiles, the bifacial gain is modest, typically 2–5%, because little reflected light reaches the rear glass. The bifacial advantage is most pronounced on light-colored surfaces such as white TPO membranes, gravel ballast, or ground-mount systems with adequate clearance. Even on a conventional roof, the glass-glass construction still pays off through superior mechanical durability, reduced moisture ingress, and a longer service life compared to glass-backsheet modules.
What does the Black version of the Jolywood JW-HD120N Series mean, and does it affect power output?
The Black version features an all-black aesthetic: black anodized frame, black front glass, and black cells. This is particularly valued on visible rooftops and modern residential or commercial buildings where standard silver-framed panels would look out of place. The darker surface absorbs slightly more heat, but given the low temperature coefficient of -0.30%/°C, the real-world impact on annual yield is negligible. Maximum power output reaches 515 Wp regardless of the color variant.
How many cells does the Jolywood JW-HD120N have, and does it use half-cut cell technology?
The JW-HD120N series uses 120 half-cut N-type TOPCon cells (hence the HD120N designation). Half-cut technology splits each cell into two smaller halves, lowering internal resistance and reducing the impact of partial shading — the module operates as two independent half-panels, so a shadow from a chimney or antenna affects only a portion of the output. Combined with N-type TOPCon, this yields a high fill factor and strong performance under real-world installation conditions.
Is Jolywood a reliable Tier 1 manufacturer, and are the JW-HD120N panels bankable?
Yes, Jolywood is classified as a Tier 1 manufacturer by BNEF, confirming financial stability and consistent module quality verified by independent analysts. Jolywood was among the first manufacturers worldwide to commercialize N-type TOPCon cells at industrial scale. The JW-HD120N series remains an active product line. Tier 1 status matters for project financing, as banks and investment funds are more likely to accept modules from such manufacturers as collateral for commercial solar loans.
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