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Sharp Brand review

NB-JD570

570 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 4,743 of 14,005
Compare panels Datasheet PDF
Power (Wp)
570
Typical for its class
Efficiency (%)
22.07
Typical · median 22.44%
Density (Wp/m²)
220.7
Typical · median 224.4
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
32.5
Weak · 1.3 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Sharp NB-JD series comprises modules designed for installations where stable output and resistance to real-world conditions are crucial - from solar farms to large commercial rooftops. The key advantage is the glass-to-glass bifacial construction, which can also utilize reflected light from the ground, making it easier to increase energy production without adding more panels. The use of half-cut cells minimizes losses and helps maintain performance even when part of the module is temporarily shaded. Furthermore, PERC technology supports better performance under lower sunlight conditions, which is important in Poland's variable climate. Another distinguishing feature is the multi-busbar architecture, which improves current flow and reduces sensitivity to microcracks. The NB-JD series is a good choice for investors who expect higher reliability and lower risk of output reduction over the long term, particularly in C&I and ground-mounted projects.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.07% 22.44% Typical 6,136
Power density 220.7 224.4 Typical 6,058
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 57.0 53.8 Weak · bottom 11% 11,009
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Commercial, utility-scale, shaded-installations and cold-climate.

Not ideal for

Weight-limited structures.

Watch-outs
57.0 kg per kWp

Bottom 11% of the TOPCon 550-600 W segment, against a median of 53.8.

Notes from the database
  • Efficiency of 22.1% matches the TOPCon 550-600W median
  • At 220.7 W/m², this panel generates 3.8 W/m² less per unit area than TOPCon 550-600W median (224.4 W/m²)
  • At -0.30%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • At 32.5 kg, this panel is 1.3 kg heavier than the TOPCon 550-600W median (31.2 kg) - more demanding for installation crews
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 570 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.07 % Typical Segment median 22.44%
Vmpp · Impp 42.80 V · 13.32 A Operating point at max power
Voc · Isc 52.13 V · 13.91 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 32.5 kg Weak Weak · 1.3 kg above median
Cells 144 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.248 · 0.047 %/°C
NOCT 45 °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

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
-0.300 %/°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
Sharp NB-JD570 570 W 22.07% -0.300 32.5 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +2.7 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +2.5 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg Cooler, 16 kg lighter, +2.3 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg Cooler, lighter, +2.3 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg Cooler, lighter, +2.3 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg Cooler, lighter, +2.2 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg Cooler, lighter, +2.1 pp
NU-JD540 540 W 20.89% -0.341 27.8 kg Lighter, -1.2 pp, -5 yr warranty
NU-JD545 545 W 21.10% -0.341 27.5 kg Lighter, -1.0 pp, -5 yr warranty
NU-JD550 550 W 21.30% -0.341 27.5 kg Hotter, lighter, -5 yr warranty
NB-JD575 575 W 22.26% -0.300 32.5 kg Very close match
NB-JD580 580 W 22.45% -0.300 32.5 kg +10 W, +0.4 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +80 W, lighter, +3.1 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +75 W, lighter, +2.9 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +70 W, lighter, +2.7 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +65 W, lighter, +2.5 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
Has the Sharp NB-JD Series been discontinued?
The Sharp NB-JD Series has been discontinued and is no longer part of Sharp's active product lineup. Limited inventory may still be available through select distributors, but planning new large-scale projects around ongoing supply availability is risky. For servicing or expanding an existing NB-JD installation, contact authorized Sharp partners or consider a current-generation equivalent from the manufacturer's portfolio.
What cell technology does the Sharp NB-JD use and what does it mean in practice?
The NB-JD Series uses N-type TOPCon (Tunnel Oxide Passivated Contact) cells, which minimize carrier recombination at electrical contacts. In practice, this delivers module efficiency exceeding 22% and better low-light performance compared to standard PERC. N-type cells also exhibit lower light-induced degradation (LID), preserving higher energy yield across the full system lifetime.
How much additional energy can the bifacial Sharp NB-JD panels generate?
The NB-JD's glass-glass bifacial structure allows the rear side to capture light reflected from the ground surface. Real-world bifacial gain depends on ground albedo and mounting height — on light gravel or white membranes it can add 5–15% annual yield. Ground-mount arrays and large flat commercial rooftops with properly configured tilt angles benefit most from the bifacial design.
What warranty does the Sharp NB-JD Series carry?
The Sharp NB-JD Series includes a 25-year product warranty covering material and manufacturing defects, plus a 30-year linear power output warranty guaranteeing at least 87.5% of rated power after 30 years. This is one of the longest power warranties available in the module market, making it particularly valuable for C&I and utility-scale projects with long-term financing structures.
Do Sharp NB-JD panels perform well under variable, low-irradiance conditions?
Yes, the NB-JD Series is well-suited for variable European climates with frequent cloud cover. TOPCon cells combined with a half-cut cell layout improve performance under diffuse irradiance and partial shading scenarios. The low temperature coefficient of Pmax (–0.30%/°C) minimizes power loss during summer heat peaks while maintaining solid output during cooler months.
Is the Sharp NB-JD at 580 Wp suitable for large commercial and utility-scale PV installations?
Yes, the NB-JD Series was designed specifically for utility-scale ground-mount arrays and large commercial and industrial (C&I) rooftops. With up to 580 Wp output and a 1500 V maximum system voltage, longer strings can be configured to reduce BoS costs. The glass-glass construction provides enhanced resistance to salt mist, ammonia, and sand — critical durability factors for open-field installations over multiple decades.
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