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Jolywood JW-HT144N-R0-585
Jolywood Brand review

JW-HT144N-R0-585

585 Wp TOPCon Bifacial 80%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 3,944 of 14,005
Compare panels Datasheet PDF
Power (Wp)
585
Typical for its class
Efficiency (%)
22.70
Strong · top 25%
Density (Wp/m²)
226.5
Typical · median 224.4
Temp (%/°C)
-0.280
Strong · top 4%
Weight (kg)
26.6
Strong · 4.6 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The Jolywood JW Pro series comprises bifacial modules in n-type TOPCon technology, designed to maximize energy yield under real operating conditions. Thanks to the active rear side, they better utilize reflected light from the ground surface - translating to additional power generation where other panels "finish" their work: on light roofs, membranes, gravel, or in snowy surroundings.

A key feature of this series is the glass-glass construction, which improves resistance to environmental factors and operational stability for years. From an investor's perspective, the following features are also important: low power degradation and resilience to phenomena typical of operation in challenging conditions, such as PID, high salinity, or ammonia. JW Pro also prioritizes solutions minimizing the risk of microcracks, contributing to maintaining parameters over a long-term horizon.

This is an excellent choice for C&I installations, PV farms, and projects where a low LCOE matters - especially where you can strategically leverage reflections to increase yield without expanding the surface area.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.70% 22.44% Strong · top 25% 3,307
Power density 226.5 224.4 Typical 3,500
Temperature coefficient -0.280 -0.290 Strong · top 4% 1,309
Weight per kWp 45.5 53.8 Strong · top 6% 742
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 1 caution
Best for

Commercial, utility-scale and hot-climate.

Strengths
-0.280 %/°C temperature coefficient

Top 4% of the TOPCon 550-600 W segment, against a median of -0.290. Ranked 1,309th in the whole database.

45.5 kg per kWp

Top 6% of the TOPCon 550-600 W segment, against a median of 53.8. Ranked 742nd in the whole database.

22.70% module efficiency

Top 25% of the TOPCon 550-600 W segment, against a median of 22.44%.

What owners get
Efficiency 22.7–23.6%: clear peer advantage

JW Pro modules achieve up to 23.6% efficiency, outperforming direct peers — GCL-M12/60GDF (21.6%), Techwise Summit (21.55%), and Seraphim Seco (21.55%) — by approximately 2 percentage points, a ~9% relative advantage that translates into higher energy yield per unit of roof or field area.

Low temp. coefficient Pmax: −0.28%/°C

N-type TOPCon cells deliver a Pmax temperature coefficient of −0.28%/°C versus −0.35% to −0.40%/°C for typical PERC modules, resulting in meaningfully higher real-world output on hot days. Annual power degradation of 0.40% (1.0% in year one) keeps LID and LETID losses to a minimum.

Bifacial glass-glass with 5–25% rear-side gain

The active rear surface contributes an additional 5–25% yield from reflected irradiance at albedo >25% (white TPO membranes, gravel, snow-covered ground). The dual-glass (DG) build eliminates backsheet degradation and raises mechanical load resistance, supporting a real service life well beyond 30 years.

30-year linear power warranty & BNEF Tier-1 status

Jolywood guarantees ≥87.4% of rated power after 30 years — exceeding the 25-year standard prevalent in this segment (e.g., 84.8% at 25 years for many competitors). The manufacturer has operated since 2008 as a global pioneer of industrial N-type TOPCon cell production and holds confirmed bankable-manufacturer status per the BNEF Tier-1 list (Q2 2026).

Trade-offs
Smaller production scale vs. market leaders

Jolywood's ~10 GW/year manufacturing capacity trails segment leaders — JinkoSolar, LONGi, and Trina Solar each exceed 80 GW/year — which may result in longer lead times or limited supply flexibility for utility-scale projects above ~50 MWp during peak demand periods.

Notes from the database
  • At 22.7% efficiency, this panel is on par with typical TOPCon 550-600W modules
  • At 226.5 W/m² power density, roof space requirements are typical for TOPCon 550-600W panels
  • At -0.28%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • At 26.6 kg, this panel is 4.6 kg lighter than TOPCon 550-600W median (31.2 kg) - easier handling during installation
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 585 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.70 % Strong Segment median 22.44%
Vmpp · Impp 44.41 V · 13.17 A Operating point at max power
Voc · Isc 51.77 V · 13.94 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×30 mm · 2.58 m² of roof
Weight 26.6 kg Strong Strong · 4.6 kg below median
Cells 144 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 4% of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 45 °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 511 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 585 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

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-HT144N-R0-585 585 W 22.70% -0.280 26.6 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg -25 W, cooler, +2.1 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -30 W, cooler, +1.9 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +50 W, cooler, +1.9 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +45 W, heavier, +1.7 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg -35 W, lighter, +1.7 pp
JW-HT144N-565 565 W 21.87% -0.300 27.5 kg -20 W, hotter, -0.8 pp
JW-HD144N-R0-570W 570 W 22.10% -0.280 31.5 kg -15 W, heavier, -0.6 pp
JW-HD144N-R0-575W 575 W 22.30% -0.280 31.5 kg -10 W, heavier, -0.4 pp
JW-HD144N-R0-580W 580 W 22.50% -0.280 31.5 kg Heavier
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +65 W, cooler, +2.5 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +60 W, cooler, +2.3 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +55 W, cooler, +2.1 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Jolywood JW Pro Series come with?
The Jolywood JW Pro Series includes a 12-year product warranty covering manufacturing defects and materials, plus a 30-year linear power warranty. Degradation is capped at 1% in year one and 0.4% per year afterward — guaranteeing at least 87.4% of rated output at year 30. This is among the best degradation profiles currently available in bifacial TOPCon modules.
What is n-type TOPCon technology and why is it better than PERC?
TOPCon (Tunnel Oxide Passivated Contact) is a next-generation cell architecture built on an n-type silicon substrate. Compared to standard p-type PERC cells, it delivers higher efficiency (above 23%), a lower temperature coefficient (-0.30%/°C), and significantly better resistance to LID (Light-Induced Degradation). In practical terms, this means more kilowatt-hours per year, smaller output losses on hot days, and a more stable power curve over 30 years of operation.
Do the Jolywood JW Pro bifacial panels actually generate more energy — and when does it make a real difference?
Yes, but the gain depends on what is underneath the array. Bifacial yield is highest on high-albedo surfaces such as white TPO membranes, light-colored gravel, or snow — where reflected irradiance can be 20–40% of direct irradiance. In C&I rooftop and ground-mount PV projects with adequate module elevation, JW Pro bifacial panels can deliver 5–15% more energy than an equivalent monofacial module. On dark roofing the rear-side gain is negligible.
What is the maximum power output of a Jolywood JW Pro panel and what formats are available?
The top model in the JW Pro Series reaches 610 Wp. The lineup consists of 144-cell glass-glass modules starting around 570 Wp, designed for commercial rooftop and utility-scale PV projects. A maximum system voltage of 1500 V DC supports longer string configurations, which reduces BoS costs and simplifies the electrical design.
Are Jolywood JW Pro panels suitable for harsh environments — coastal sites, agricultural facilities, or chemical exposure?
Yes. The glass-glass construction and certified resistance to PID, salt mist, and ammonia make JW Pro modules well-suited to chemically aggressive environments. Ammonia resistance is especially relevant for agricultural installations and livestock facilities, where outgassing can accelerate degradation in conventional backsheet modules. The frameless glass rear also eliminates the delamination risk associated with polymer backsheets.
Are Jolywood JW Pro modules compatible with standard inverters, and do they require a special racking system?
JW Pro modules are rated for 1500 V DC systems and are compatible with most string and central inverters supporting the 1500 V standard, such as Huawei SUN2000, SMA Sunny Tripower, and Fronius Eco series. Because of the glass-glass build, these panels are slightly heavier than backsheet equivalents — factor that into racking selection and verify the allowable load for the roof structure or ground-mount foundation.
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