550 W PERC solar panel with 144 cells. Voc 49.8 V · Isc 13.88 A · TcVoc -0.28%/°C.
Select the panel you want to replace
99 panels found · 4240 panels excluded
550 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.8 V | 0.0% |
| Vmpp | 41.93 V | 41.95 V | 0.0% |
| Isc | 13.88 A | 13.98 A | 0.7% |
| Impp | 13.12 A | 13.12 A | 0.0% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
550 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.75 V | 0.1% |
| Vmpp | 41.93 V | 41.9 V | 0.1% |
| Isc | 13.88 A | 14.04 A | 1.2% |
| Impp | 13.12 A | 13.13 A | 0.1% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
560 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.79 V | 0.0% |
| Vmpp | 41.93 V | 41.73 V | 0.5% |
| Isc | 13.88 A | 14.02 A | 1.0% |
| Impp | 13.12 A | 13.42 A | 2.3% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.76 V | 0.1% |
| Vmpp | 41.93 V | 41.81 V | 0.3% |
| Isc | 13.88 A | 13.92 A | 0.3% |
| Impp | 13.12 A | 13.04 A | 0.6% |
| TcVoc | -0.28 %/°C | -0.275 %/°C | ±0.005 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
545 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.75 V | 0.1% |
| Vmpp | 41.93 V | 41.8 V | 0.3% |
| Isc | 13.88 A | 13.93 A | 0.4% |
| Impp | 13.12 A | 13.04 A | 0.6% |
| TcVoc | -0.28 %/°C | -0.275 %/°C | ±0.005 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.65 V | 0.3% |
| Vmpp | 41.93 V | 41.8 V | 0.3% |
| Isc | 13.88 A | 13.92 A | 0.3% |
| Impp | 13.12 A | 13.04 A | 0.6% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
550 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.9 V | 0.2% |
| Vmpp | 41.93 V | 41.96 V | 0.1% |
| Isc | 13.88 A | 14 A | 0.9% |
| Impp | 13.12 A | 13.11 A | 0.1% |
| TcVoc | -0.28 %/°C | -0.275 %/°C | ±0.005 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
555 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.9 V | 0.2% |
| Vmpp | 41.93 V | 42.05 V | 0.3% |
| Isc | 13.88 A | 14.11 A | 1.7% |
| Impp | 13.12 A | 13.2 A | 0.6% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.6 V | 0.4% |
| Vmpp | 41.93 V | 41.75 V | 0.4% |
| Isc | 13.88 A | 13.97 A | 0.6% |
| Impp | 13.12 A | 13.06 A | 0.5% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
550 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.91 V | 0.2% |
| Vmpp | 41.93 V | 41.97 V | 0.1% |
| Isc | 13.88 A | 14.02 A | 1.0% |
| Impp | 13.12 A | 13.1 A | 0.2% |
| TcVoc | -0.28 %/°C | -0.275 %/°C | ±0.005 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
555 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.69 V | 0.2% |
| Vmpp | 41.93 V | 41.64 V | 0.7% |
| Isc | 13.88 A | 13.92 A | 0.3% |
| Impp | 13.12 A | 13.33 A | 1.6% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°C | ±0.000 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.8 V | 49.52 V | 0.6% |
| Vmpp | 41.93 V | 41.7 V | 0.5% |
| Isc | 13.88 A | 13.83 A | 0.4% |
| Impp | 13.12 A | 13.07 A | 0.4% |
| TcVoc | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
| TcPmax | -0.35 %/°C | -0.35 %/°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
Voc
49.8 V
Vmpp
41.93 V
Isc
13.88 A
Impp
13.12 A
TcVoc
-0.28 %/°C
TcPmax
-0.35 %/°C
Pmax
550 W
Cells
144
Bifaciality
70%
Length
2290 mm
Width
1146 mm
Thickness
30 mm
Weight
33 kg
The GCL-M10/72GDF 550 is a 550 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 |
|---|---|---|---|
| GCL-M10/72GDF 530 | 530 W | 48.68 V | 13.68 A |
| GCL-M10/72GDF 535 | 535 W | 48.96 V | 13.73 A |
| GCL-M10/72GDF 540 | 540 W | 49.24 V | 13.78 A |
| GCL-M10/72GDF 545 | 545 W | 49.52 V | 13.83 A |
| GCL-M10/72GDF 555 | 555 W | 50.08 V | 13.93 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 49.8 V (within ±5%), and temperature coefficient TcVoc close to -0.28%/°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 GCL-M10/72GDF 550.