595 W TOPCon solar panel with 144 cells. Voc 50 V · Isc 14.8 A · TcVoc -0.28%/°C.
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String Compatibility Calculator
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How the Algorithm Works
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Voc
50 V
Vmpp
41.95 V
Isc
14.8 A
Impp
14.18 A
TcVoc
-0.28 %/°C
TcPmax
-0.3 %/°C
Pmax
595 W
Cells
144
Bifaciality
85%
Length
2278 mm
Width
1134 mm
Thickness
30 mm
Weight
30.6 kg
The TCL Zhonghuan HSM-ND72-GF595 is a 595 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 |
|---|---|---|---|
| HSM-ND72-GF580 | 580 W | 49.85 V | 14.65 A |
| HSM-ND72-GF585 | 585 W | 49.9 V | 14.7 A |
| HSM-ND72-GF590 | 590 W | 49.95 V | 14.75 A |
| HSM-ND72-GF600 | 600 W | 50.05 V | 14.85 A |
| HSM-ND72-GF605 | 605 W | 50.1 V | 14.9 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 50 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 TCL Zhonghuan HSM-ND72-GF595.