655 W TOPCon solar panel with 132 cells. Voc 45.69 V · Isc 18.23 A · TcVoc -0.22%/°C.
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5 panels found · 4334 panels excluded
650 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.69 V | 45.49 V | 0.4% |
| Vmpp | 38.05 V | 37.87 V | 0.5% |
| Isc | 18.23 A | 18.18 A | 0.3% |
| Impp | 17.22 A | 17.17 A | 0.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
660 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.69 V | 45.89 V | 0.4% |
| Vmpp | 38.05 V | 38.23 V | 0.5% |
| Isc | 18.23 A | 18.28 A | 0.3% |
| Impp | 17.22 A | 17.27 A | 0.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
645 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.69 V | 45.29 V | 0.9% |
| Vmpp | 38.05 V | 37.69 V | 0.9% |
| Isc | 18.23 A | 18.13 A | 0.5% |
| Impp | 17.22 A | 17.12 A | 0.6% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
665 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.69 V | 46.09 V | 0.9% |
| Vmpp | 38.05 V | 38.41 V | 0.9% |
| Isc | 18.23 A | 18.33 A | 0.5% |
| Impp | 17.22 A | 17.32 A | 0.6% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
640 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.69 V | 45.09 V | 1.3% |
| Vmpp | 38.05 V | 37.51 V | 1.4% |
| Isc | 18.23 A | 18.08 A | 0.8% |
| Impp | 17.22 A | 17.07 A | 0.9% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
45.69 V
Vmpp
38.05 V
Isc
18.23 A
Impp
17.22 A
TcVoc
-0.22 %/°C
TcPmax
-0.24 %/°C
Pmax
655 W
Cells
132
Bifaciality
85%
Length
2384 mm
Width
1303 mm
Thickness
35 mm
Weight
41 kg
The Risen RSM132-8-655BMDG is a 655 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 |
|---|---|---|---|
| RSM132-8-640BMDG | 640 W | 45.09 V | 18.08 A |
| RSM132-8-645BMDG | 645 W | 45.29 V | 18.13 A |
| RSM132-8-650BMDG | 650 W | 45.49 V | 18.18 A |
| RSM132-8-660BMDG | 660 W | 45.89 V | 18.28 A |
| RSM132-8-665BMDG | 665 W | 46.09 V | 18.33 A |
The most critical specs to match are: cell count (must be exactly 132), Voc close to 45.69 V (within ±5%), and temperature coefficient TcVoc close to -0.22%/°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 Risen RSM132-8-655BMDG.