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Ulica Solar Brand review

UL-405M-108HV

405 Wp TOPCon
ComparePV verdict

Middle of its segment, weak in heat

Rank 11,927 of 14,005
Compare panels Datasheet PDF
Power (Wp)
405
Weak · bottom 2%
Efficiency (%)
20.74
Weak · bottom 3%
Density (Wp/m²)
207.4
Weak · bottom 3%
Temp (%/°C)
-0.360
Weak · bottom 1%
Weight (kg)
21.8
Typical · median 22.0 kg
Warranty (yrs)
25
Weak · bottom 7%

The Ulica Solar MONO HALF-CUT MODULE series is an advanced solution that redefines efficiency standards in photovoltaic installations thanks to the use of half-cut cells. This innovative architecture allows for a significant reduction in energy losses resulting from internal resistance, which directly translates into higher power yields even during intense heating of the modules. A key benefit for the user is exceptional resistance to partial shading, as dividing the panel into two independent sections ensures that shade falling on the lower part does not block the operation of the entire unit. PERC technology and the use of multi-busbars (MBB) guarantee excellent efficiency in low-light conditions, making these panels an ideal choice for Polish weather conditions, including cloudy and rainy days. This series solves the problems of homeowners with complex roof geometries and investors looking for solutions with above-average mechanical durability, resistant to extreme snow loads or strong winds. They are distinguished from the competition by rigorous Anti-PID protection and certified resistance to salt and ammonia corrosion. By choosing these modules, you invest in maximum energy yield per square meter and system stability for decades, ensuring a quick return on investment in both the residential and industrial sectors. This technology was created for those who prioritize reliability in difficult environmental conditions.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.74% 22.00% Weak · bottom 3% 10,645
Power density 207.4 220.2 Weak · bottom 3% 10,626
Temperature coefficient -0.360 -0.290 Weak · bottom 1% 12,345
Weight per kWp 53.8 51.4 Typical 7,890
Performance warranty 25 yrs 30 yrs Weak · bottom 7% 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 and shaded-installations.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 1% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 12,345th in the whole database.

20.74% module efficiency

Bottom 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 10,645th in the whole database.

207.4 watts per square metre

Bottom 3% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 10,626th in the whole database.

Notes from the database
  • Module efficiency of 20.7% is 1.3pp below average for TOPCon 400-450W panels (median: 22.0%)
  • 207.4 W/m² power density is 12.8 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.36%/°C is 0.07pp worse than TOPCon 400-450W median (-0.29%/°C) - higher losses in summer heat
  • Ranked #10645 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 405 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.74 % Weak Segment median 22.00%
Vmpp · Impp 31.30 V · 12.94 A Operating point at max power
Voc · Isc 37.30 V · 13.69 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 21.8 kg Typical Typical · median 22.0 kg
Cells 108 · 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 7% · median 30 yrs
End-of-warranty output 84.8 % Equals 332 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-405M-108HV 405 W 20.74% -0.360 21.8 kg You are here
AIKO-455-MAH54Db 455 W 23.30% -0.260 24.0 kg +50 W, cooler, +2.6 pp
LR5-54HTH-455M 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
YL455CF54 e/2 455 W 23.30% -0.290 20.3 kg +50 W, cooler, +2.6 pp
ESM-455T 455 W 23.30% -0.310 21.0 kg +50 W, +2.6 pp, +5 yr warranty
SE5-54HBC-455W 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
JST-EDMH-(445-465)W-TD (455W class) 455 W 23.30% -0.300 20.5 kg +50 W, cooler, +2.6 pp
LX-455M/182R-96+ GG 455 W 23.30% -0.260 23.5 kg +50 W, cooler, +2.6 pp
UL-395M-108HV 395 W 20.23% -0.360 21.8 kg -10 W, -0.5 pp
UL-400M-108HV 400 W 20.48% -0.360 21.8 kg -0.3 pp
UL-430M-108ADGN 430 W 22.02% -0.290 23.5 kg Cooler, +1.3 pp, +5 yr warranty
UL-435M-108ADGN 435 W 22.28% -0.290 23.5 kg Cooler, +1.5 pp, +5 yr warranty
UL-440M-108ADGN 440 W 22.53% -0.290 23.5 kg Cooler, +1.8 pp, +5 yr warranty
UL-445M-108ADGN 445 W 22.79% -0.290 23.5 kg Cooler, +2.1 pp, +5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +105 W, cooler, +4.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +90 W, cooler, +4.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +100 W, cooler, +4.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the Ulica Solar MONO HALF-CUT MODULE series?
Panels in this series reach up to 405 Wp maximum power. This is achieved through half-cut TOPCon cells, which reduce resistive losses and increase energy yield compared to conventional full-cell modules of similar dimensions.
Is the Ulica Solar MONO HALF-CUT MODULE series still available for purchase?
No, production of this series has ended and the model has been discontinued from the manufacturer's current lineup. Panels may still be found through distributors as remaining stock, but buyers should check the manufacturing date and confirm warranty service availability before choosing this option over a currently produced model.
What warranty applies to the Ulica Solar MONO HALF-CUT MODULE panels?
The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year power output warranty. Since the series has been discontinued, processing warranty claims may become harder over time, so it's advisable to confirm after-sales support terms with the seller before purchasing.
How do half-cut cells in this series differ from standard full cells?
Half-cut cells split the panel into two electrically independent sections, so shading on part of one half doesn't disable the entire module but only reduces output in that section. Smaller cells also generate lower current losses and heat buildup, resulting in higher energy yield, particularly under partial shading from chimneys or antennas.
Are Ulica Solar MONO HALF-CUT MODULE panels suitable for roofs with complex geometry?
Yes, the half-cut cell design handles partial shading well, making these panels a good fit for roofs with dormers, chimneys, or irregular pitch angles where shading is common. A reinforced frame also provides mechanical resistance to snow and wind loads, making them a versatile choice for more challenging roof structures.
Is Ulica Solar a Tier 1 manufacturer, and does that matter when choosing panels?
No, Ulica Solar, a China-based manufacturer, is not listed as a Tier 1 producer under BloombergNEF's classification. This doesn't necessarily indicate lower technical quality, but it signals lower financial stability and bankability in the eyes of lenders, which is worth considering for commercial projects financed through bank loans.
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