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All replacements

Find replacement for Ulica Solar UL-515M-108DDGN

515 W TOPCon solar panel with 108 cells. Voc 40.22 V · Isc 16.12 A · TcVoc -0.25%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

68 panels found · 3642 panels excluded

Ulica Solar UL-510M-108DDGN

510 W

TOPCon
96Exact match
ParameterOriginalReplacementDeviation
Voc40.22 V40.16 V0.1%
Vmpp33.57 V33.47 V0.3%
Isc16.12 A16.08 A0.2%
Impp15.34 A15.24 A0.7%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-520M-108DDGN

520 W

TOPCon
96Exact match
ParameterOriginalReplacementDeviation
Voc40.22 V40.26 V0.1%
Vmpp33.57 V33.67 V0.3%
Isc16.12 A16.16 A0.2%
Impp15.34 A15.44 A0.7%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Canadian Solar CS6.2-54TM-515

515 W

TOPCon
92Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.2 V0.0%
Vmpp33.57 V34 V1.3%
Isc16.12 A16.15 A0.2%
Impp15.34 A15.16 A1.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
TommaTech TT515-108TNB12R

515 W

TOPCon
91Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.15 V0.2%
Vmpp33.57 V33.95 V1.1%
Isc16.12 A16.01 A0.7%
Impp15.34 A15.17 A1.1%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Canadian Solar CS6.2-54TM-510

510 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40 V0.5%
Vmpp33.57 V33.8 V0.7%
Isc16.12 A16.1 A0.1%
Impp15.34 A15.1 A1.6%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Trina Solar TSM-NEG18R.28-505

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.3 V0.2%
Vmpp33.57 V33.5 V0.2%
Isc16.12 A15.89 A1.4%
Impp15.34 A15.09 A1.6%
TcVoc-0.25 %/°C-0.24 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Trina Solar TSM-NEL18R-505

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.3 V0.2%
Vmpp33.57 V33.5 V0.2%
Isc16.12 A15.89 A1.4%
Impp15.34 A15.09 A1.6%
TcVoc-0.25 %/°C-0.24 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-505M-108DDGN

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.22 V39.99 V0.6%
Vmpp33.57 V33.32 V0.7%
Isc16.12 A16.02 A0.6%
Impp15.34 A15.16 A1.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Trina Solar TSM-NEG18R.20-505

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.3 V0.2%
Vmpp33.57 V33.5 V0.2%
Isc16.12 A15.89 A1.4%
Impp15.34 A15.09 A1.6%
TcVoc-0.25 %/°C-0.24 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Trina Solar TSM-NEG18R.25-505

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.3 V0.2%
Vmpp33.57 V33.5 V0.2%
Isc16.12 A15.89 A1.4%
Impp15.34 A15.09 A1.6%
TcVoc-0.25 %/°C-0.24 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
TommaTech TT520-108TNB12R

520 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc40.22 V40.35 V0.3%
Vmpp33.57 V34.15 V1.7%
Isc16.12 A16.07 A0.3%
Impp15.34 A15.23 A0.7%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
TommaTech TT510-108TNB12R

510 W

TOPCon
86Good match
ParameterOriginalReplacementDeviation
Voc40.22 V39.95 V0.7%
Vmpp33.57 V33.75 V0.5%
Isc16.12 A15.95 A1.1%
Impp15.34 A15.12 A1.4%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C

String Compatibility Calculator

Verify the replacement panel works with your inverter

Panel Matcher

Find all compatible panels for a specific inverter

Already have panels?

Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.

How the Algorithm Works

Learn how panels are scored and matched

Original Panel Specs

Voc

40.22 V

Vmpp

33.57 V

Isc

16.12 A

Impp

15.34 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

515 W

Cells

108

Length

1961 mm

Width

1134 mm

Thickness

30 mm

Weight

24 kg

The Ulica Solar UL-515M-108DDGN is a 515 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.

Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.

Other models in this series

ModelPowerVocIsc
UL-495M-108DDGN495 W39.67 V15.9 A
UL-500M-108DDGN500 W39.83 V15.96 A
UL-505M-108DDGN505 W39.99 V16.02 A
UL-510M-108DDGN510 W40.16 V16.08 A
UL-520M-108DDGN520 W40.26 V16.16 A

Frequently Asked Questions

What specs must match when replacing the Ulica Solar UL-515M-108DDGN?

The most critical specs to match are: cell count (must be exactly 108), Voc close to 40.22 V (within ±5%), and temperature coefficient TcVoc close to -0.25%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.

Can I use a higher wattage replacement for the Ulica Solar UL-515M-108DDGN?

A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.

What happens if the replacement panel has different voltage specs?

If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original Ulica Solar UL-515M-108DDGN.