450 W TOPCon solar panel with 96 cells. Voc 35.8 V · Isc 15.9 A · TcVoc -0.25%/°C.
Select the panel you want to replace
Panel not in the catalogue?
242 of the 4,444 panels in the catalogue can replace Sunpro Power SPDG450-N96R12. Before you buy, check your pick in the string calculator with your inverter.
CloseNoticeableLarge differenceTap or click a difference to see what it means for your string.
Near-identical electrics — a drop-in swap for the same string.
Match 95 % · 1 model
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 80–94 % · 58 models
Noticeable differences — the string voltage and current need a careful check.
Match 60–79 % · 120 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 28–59 % · 63 models
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
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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
Voc
35.8 V
Vmpp
29.93 V
Isc
15.9 A
Impp
15.04 A
TcVoc
-0.25 %/°C
TcPmax
-0.3 %/°C
Pmax
450 W
Cells
96
Bifaciality
80%
Length
1762 mm
Width
1134 mm
Thickness
30 mm
Weight
23.8 kg
The Sunpro Power SPDG450-N96R12 is a 450 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.
| Model | Power | Voc | Isc |
|---|---|---|---|
| SPDG445-N96R12 | 445 W | 35.54 V | 15.86 A |
| SPDG455-N96R12 | 455 W | 36.06 V | 15.94 A |
| SPDG460-N96R12 | 460 W | 36.3 V | 15.99 A |
The most critical specs to match are: cell count (must be exactly 96), Voc close to 35.8 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.
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.
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 Sunpro Power SPDG450-N96R12.