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Yingli YL545DF72 e/2
Yingli Brand review

YL545DF72 e/2

545 Wp PERC Bifacial 70%
ComparePV verdict

Space saver, heavy for its output

Rank 7,487 of 14,129
Compare panels Datasheet PDF
Power (Wp)
545
Strong · top 12%
Efficiency (%)
21.10
Strong · top 21%
Density (Wp/m²)
211.0
Strong · top 18%
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
32.0
Weak · 3.7 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

Yingli YLM 3.0 Pro 1 modules are monocrystalline, based on P-type PERC cell technology, designed for stable performance in real-world operating conditions, not just in the lab. The use of large cell formats and a half-cut configuration translates to lower internal losses and better tolerance to partial shading - crucial on rooftops with chimneys, window wells, or edge-mounted installations.

These modules also boast high weather resistance, thanks to refined lamination materials and a robust construction, facilitating safe mounting on rooftop and ground structures. The series offers positive power tolerance, ensuring that installers and investors achieve predictable yield without the risk of an underperforming module in a string.

The YLM 3.0 Pro 1 is suitable for projects targeting commercial and agricultural applications, as well as larger consumer-scale systems, where reliable energy output, longevity, and easy integration with standard inverters matter. What sets it apart is its practical approach - a focus on reliability and steady investment returns, rather than chasing mere claims.

Ranking

709 panels in the segment PERC 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.10% 20.90% Strong · top 21% 9,365
Power density 211.0 209.0 Strong · top 18% 9,380
Temperature coefficient -0.350 -0.350 Typical 10,489
Weight per kWp 58.7 53.0 Weak · bottom 23% 11,933
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Weight-limited structures.

Strengths
211.0 watts per square metre

Top 18% of the PERC 500-550 W segment, against a median of 209.0.

21.10% module efficiency

Top 21% of the PERC 500-550 W segment, against a median of 20.90%.

Watch-outs
58.7 kg per kWp

Bottom 23% of the PERC 500-550 W segment, against a median of 53.0.

Notes from the database
  • Efficiency of 21.1% matches the PERC 500-550W median
  • Power density of 211.0 W/m² matches the PERC 500-550W median
  • At -0.35%/°C, hot weather performance is typical for PERC 500-550W panels
  • At 32.0 kg, this panel is 3.7 kg heavier than the PERC 500-550W median (28.3 kg) - more demanding for installation crews
  • 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 545 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.10 % Strong Segment median 20.90%
Vmpp · Impp 41.75 V · 13.06 A Operating point at max power
Voc · Isc 49.60 V · 13.97 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 32.0 kg Weak Weak · 3.7 kg above median
Cells 144 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 39 °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 85.0 % Equals 463 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Yingli in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 545 Wp appear here. The rest cover the whole series.

Linear Power Degradation Warranty Chart Linear Power Degradation Warranty Chart Whole series I-V / P-V Curves I-V / P-V Curves 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
-0.350 %/°C against a segment median of -0.350
-
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
Yingli YL545DF72 e/2 545 W 21.10% -0.350 32.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.9 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.6 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, lighter, +3.6 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.4 pp
YL530DF72 e/2 530 W 20.50% -0.350 32.0 kg -15 W, -0.6 pp
YL535DF72 e/2 535 W 20.70% -0.350 32.0 kg -10 W, -0.4 pp
LF535M10-72H 535 W 20.70% -0.354 28.5 kg Lighter, -0.4 pp, -5 yr warranty
YL540DF72 e/2 540 W 20.90% -0.350 32.0 kg -0.2 pp
LF540M10-72H 540 W 20.90% -0.354 28.5 kg Lighter, -0.2 pp, -5 yr warranty
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +105 W, cooler, +4.1 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +95 W, cooler, +3.7 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +90 W, cooler, +3.5 pp

Found 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2548 panels of the same or similar size to this one, within ±100 mm. See them here

About the YLM 3.0 Pro 1 series

6 answered

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

What is the maximum power output of the Yingli YLM 3.0 Pro 1 panel?
The top variant of the YLM 3.0 Pro 1 series reaches up to 555 Wp. The panel is built with 144 monocrystalline PERC cells in a half-cut layout, delivering high efficiency within a standard module format. This means each panel produces more energy per roof area than older full-cell designs.
Are Yingli YLM 3.0 Pro 1 panels suitable for a sloped residential roof?
Yes, the series works well both in larger commercial installations and in residential prosumer systems on sloped roofs. The half-cut cell layout improves shading tolerance, which matters on roofs with chimneys, dormers, or nearby trees. The durable laminate construction also supports safe mounting on standard roof racking systems.
What warranty comes with Yingli YLM 3.0 Pro 1 panels?
Yingli provides a 12-year product warranty and a 30-year linear power warranty. This means the manufacturer guarantees a defined performance level throughout three decades of operation, giving homeowners and commercial buyers a predictable return on investment.
How does PERC cell technology in the YLM 3.0 Pro 1 differ from standard monocrystalline cells?
PERC (Passivated Emitter and Rear Cell) cells feature an extra rear-side passivation layer that reflects unused light back into the cell, boosting efficiency. Combined with half-cut technology and large-format cells, this results in lower internal losses and better module performance under partial shading or elevated operating temperatures.
Is Yingli a tier 1 manufacturer worth trusting for a large investment?
Yes, Yingli is listed as a tier 1 manufacturer, reflecting solid financial standing and a long-established presence in the PV market. Headquartered in China, it is one of the more recognized solar panel suppliers worldwide, which simplifies warranty service and spare parts availability for larger commercial or agricultural projects.
Do YLM 3.0 Pro 1 panels have a positive power tolerance?
Yes, the series offers positive power tolerance, meaning the actual output never falls below the rated nameplate value. For installers and investors, this ensures predictable energy yield without the risk of receiving an underperforming unit from a given production batch.
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