Skip to main content
Ulica Solar Brand review

UL-545M-144HV

545 Wp TOPCon
ComparePV verdict

Middle of its segment, weak in heat

Rank 8,501 of 14,005
Compare panels Datasheet PDF
Power (Wp)
545
Strong · top 2%
Efficiency (%)
21.09
Weak · bottom 5%
Density (Wp/m²)
210.9
Weak · bottom 5%
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
28.3
Typical · median 27.0 kg
Warranty (yrs)
25
Weak · bottom 3%

The Ulica Solar MONO HALF-CUT series utilizes advanced half-cut cell technology, which significantly reduces internal losses and improves the overall efficiency of the modules in real-world operating conditions. Thanks to the use of Half-Cut technology, these panels generate lower resistive losses and show significantly higher resistance to the disadvantageous phenomenon of partial shading, which is crucial for residential building roofs with complex geometry. This solution directly translates into more stable power production and higher efficiency at high temperatures due to a low temperature coefficient, which distinguishes this series from standard components. These products have been designed for investors seeking reliability and durability, which is confirmed by numerous certificates of resistance to extreme weather conditions, including ammonia corrosion and salt mist. The panels are characterized by exceptional mechanical strength against high snow and wind loads, ensuring the safety of the entire installation for decades. The use of modern monocrystalline cell architecture makes it an ideal choice for both home prosumers and large commercial systems. By investing in this series, the user receives an optimal price-to-power ratio while maintaining the quality standards of a global manufacturer from the prestigious Tier 1 list. This is a proven technology that effectively minimizes the risk of hot-spots and guarantees maximum energy yield from the available mounting surface.

Ranking

432 panels in the segment TOPCon 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.09% 22.73% Weak · bottom 5% 9,519
Power density 210.9 227.4 Weak · bottom 5% 9,399
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,345
Weight per kWp 51.9 52.4 Typical 5,352
Performance warranty 25 yrs 30 yrs Weak · bottom 3% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Hot climates, owners who want a long output guarantee and tight roof space.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the TOPCon 500-550 W segment, against a median of -0.290. Ranked 12,345th in the whole database.

25 year performance warranty

Bottom 3% of the TOPCon 500-550 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database.

21.09% module efficiency

Bottom 5% of the TOPCon 500-550 W segment, against a median of 22.73%. Ranked 9,519th in the whole database.

Notes from the database
  • Module efficiency of 21.1% is 1.6pp below average for TOPCon 500-550W panels (median: 22.7%)
  • 210.9 W/m² power density is 16.5 W/m² below TOPCon 500-550W median (227.4 W/m²) - requires larger installation area
  • -0.36%/°C temperature coefficient - 0.07pp worse than TOPCon 500-550W median (-0.29%/°C), expect higher hot weather losses
  • At 28.3 kg (1.3 kg above TOPCon 500-550W median of 27.0 kg), requires checking roof load capacity
  • In the top 68% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 545 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.09 % Weak Segment median 22.73%
Vmpp · Impp 41.80 V · 13.04 A Operating point at max power
Voc · Isc 49.90 V · 13.65 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 28.3 kg Typical Typical · median 27.0 kg
Cells 144 · TOPCon Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.290 · 0.049 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 3% · median 30 yrs
End-of-warranty output 84.8 % Equals 447 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

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
-0.360 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Ulica Solar UL-545M-144HV 545 W 21.09% -0.360 28.3 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, +3.9 pp, +5 yr warranty
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, +3.7 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, +3.6 pp, +5 yr warranty
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.5 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, +3.4 pp, +5 yr warranty
UL-540M-144HV 540 W 20.84% -0.360 28.3 kg -0.2 pp
UL-550M-144HV 550 W 21.28% -0.360 28.3 kg Very close match
UL-555M-144HV 555 W 21.48% -0.340 27.5 kg +10 W, cooler, +0.4 pp
TSM144-9-570-595BNDG (570W) 570 W 22.10% -0.290 31.0 kg Cooler, +1.0 pp, +5 yr warranty
TSM144-9-570-595BNDG (575W) 575 W 22.30% -0.290 31.0 kg Cooler, +1.2 pp, +5 yr warranty
UL-580M-144ADGN 580 W 22.45% -0.290 30.6 kg Cooler, +1.4 pp, +5 yr warranty
UL-585M-144ADGN 585 W 22.65% -0.290 30.6 kg Cooler, +1.6 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

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 2542 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is Half-Cut technology in the Ulica Solar MONO HALF-CUT series and what real benefits does it offer?
Half-Cut technology splits standard cells in half so current travels a shorter path, reducing resistive losses. In practice this means higher module efficiency, lower risk of hot-spots, and better performance under partial shading, for example from a chimney or antenna. For the customer this translates into more stable energy production throughout the year.
What is the maximum power of a panel in the MONO HALF-CUT series, and how many panels are needed for a typical 10 kWp installation?
The maximum power in this series is 550 Wp. Building a 10 kWp installation requires roughly 18 such panels, though the exact number depends on the specific model within the series and available roof space. Panels based on TOPCon technology maintain high efficiency even with fewer modules than older PERC-based solutions.
How does TOPCon cell technology used in this series differ from older PERC technology?
TOPCon is a newer N-type cell technology that reduces carrier recombination on the rear side of the cell through an additional passivation layer. Compared to PERC, it delivers higher efficiency, a lower annual degradation rate, and better performance at high temperatures. For the user, this means more energy generated from the same roof area, especially during summer.
What warranty comes with Ulica Solar MONO HALF-CUT panels and what exactly does it cover?
The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year power output warranty guaranteeing a minimum level of energy production over time. This is a standard warranty period for reputable Asian manufacturers and is sufficient to cover the typical payback period of a solar installation.
Are Ulica Solar MONO HALF-CUT panels bifacial, generating power from both sides?
No, this specific MONO HALF-CUT series uses standard monofacial modules. This means energy production occurs only from the front side of the panel, which is a simpler and cheaper solution to install than bifacial panels, but without the additional energy gain from reflected light off the ground.
Is Ulica Solar a Tier 1 manufacturer, and is it worth investing in panels outside that list?
Ulica Solar does not currently appear on the Tier 1 list compiled by Bloomberg NEF, which mainly reflects bank financing scale rather than product quality. The company is headquartered in China and holds certifications for resistance to harsh conditions, including ammonia corrosion and salt mist, confirming solid build quality despite the lack of Tier 1 status.
Add to compare