580 W TOPCon solar panel with 144 cells. Voc 52.36 V · Isc 13.61 A · TcVoc -0.25%/°C.
Select the panel you want to replace
Panel not in the catalogue?
114 of the 4,444 panels in the catalogue can replace Sunway SW580N-144. 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.
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 80–94 % · 19 models
Noticeable differences — the string voltage and current need a careful check.
Match 61–79 % · 68 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 24–59 % · 27 models
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
52.36 V
Vmpp
43.43 V
Isc
13.61 A
Impp
13.36 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
580 W
Cells
144
Length
2279 mm
Width
1134 mm
Thickness
30 mm
Weight
32 kg
The Sunway SW580N-144 is a 580 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 |
|---|---|---|---|
| SW565N-144 | 565 W | 51.6 V | 13.47 A |
| SW570N-144 | 570 W | 52 V | 13.52 A |
| SW575N-144 | 575 W | 52.18 V | 13.58 A |
| SW585N-144 | 585 W | 52.48 V | 13.67 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 52.36 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 Sunway SW580N-144.