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All replacements

Find replacement for EcoFlow EF-SG-520

520 W TOPCon solar panel with 132 cells. Voc 47 V · Isc 13.4 A · TcVoc -0.25%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

14 panels found · 4325 panels excluded

Perlight Solar PLM-540DH8N-132

540 W

TOPCon
61Acceptable
ParameterOriginalReplacementDeviation
Voc47 V48.35 V2.9%
Vmpp40.1 V40.61 V1.3%
Isc13.4 A13.88 A3.6%
Impp13 A13.3 A2.3%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.3 %/°C-0.3 %/°C±0.000 %/°C
Sun Earth DXM8-66H 530W

530 W

TOPCon
58Marginal
ParameterOriginalReplacementDeviation
Voc47 V47 V0.0%
Vmpp40.1 V38.9 V3.0%
Isc13.4 A14.35 A7.1%
Impp13 A13.62 A4.8%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.29 %/°C±0.010 %/°C
LONGi LR5-66HTH-520M

520 W

HPBC
54Marginal
ParameterOriginalReplacementDeviation
Voc47 V48.27 V2.7%
Vmpp40.1 V39.91 V0.5%
Isc13.4 A13.84 A3.3%
Impp13 A13.03 A0.2%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.29 %/°C±0.010 %/°C
Horay Solar HS530TC-MHO

530 W

TOPCon
50Marginal
ParameterOriginalReplacementDeviation
Voc47 V47.81 V1.7%
Vmpp40.1 V40.24 V0.3%
Isc13.4 A14.22 A6.1%
Impp13 A13.17 A1.3%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.28 %/°C±0.020 %/°C
Horay Solar HS540TC-MHA

540 W

TOPCon
48Marginal
ParameterOriginalReplacementDeviation
Voc47 V47.68 V1.4%
Vmpp40.1 V39.79 V0.8%
Isc13.4 A14.34 A7.0%
Impp13 A13.57 A4.4%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.28 %/°C±0.020 %/°C
Sun Earth DXM8-66H 520W

520 W

TOPCon
48Marginal
ParameterOriginalReplacementDeviation
Voc47 V46.6 V0.9%
Vmpp40.1 V38.7 V3.5%
Isc13.4 A14.2 A6.0%
Impp13 A13.44 A3.4%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.29 %/°C±0.010 %/°C
Sun Earth DXM8-66H 540W

540 W

TOPCon
46Marginal
ParameterOriginalReplacementDeviation
Voc47 V47.4 V0.9%
Vmpp40.1 V39.1 V2.5%
Isc13.4 A14.49 A8.1%
Impp13 A13.81 A6.2%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.29 %/°C±0.010 %/°C
Horay Solar HS535TC-MHO

535 W

TOPCon
43Marginal
ParameterOriginalReplacementDeviation
Voc47 V48.04 V2.2%
Vmpp40.1 V40.44 V0.8%
Isc13.4 A14.29 A6.6%
Impp13 A13.23 A1.8%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.28 %/°C±0.020 %/°C
Horay Solar HS540TC-MHO

540 W

TOPCon
40Marginal
ParameterOriginalReplacementDeviation
Voc47 V48.27 V2.7%
Vmpp40.1 V40.64 V1.3%
Isc13.4 A14.35 A7.1%
Impp13 A13.29 A2.2%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.28 %/°C±0.020 %/°C
Sun Earth DXM8-66H 510W

510 W

TOPCon
38Marginal
ParameterOriginalReplacementDeviation
Voc47 V46.2 V1.7%
Vmpp40.1 V38.5 V4.0%
Isc13.4 A14.05 A4.9%
Impp13 A13.25 A1.9%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.3 %/°C-0.29 %/°C±0.010 %/°C
S-Energy SL65-66MAJ-505Z

505 W

PERC
20Marginal
ParameterOriginalReplacementDeviation
Voc47 V45.9 V2.3%
Vmpp40.1 V38.3 V4.5%
Isc13.4 A13.9 A3.7%
Impp13 A13.19 A1.5%
TcVoc-0.25 %/°C-0.29 %/°C±0.040 %/°C
TcPmax-0.3 %/°C-0.35 %/°C±0.050 %/°C
S-Energy SL65-66MBJ-505Z

505 W

PERC
20Marginal
ParameterOriginalReplacementDeviation
Voc47 V45.9 V2.3%
Vmpp40.1 V38.3 V4.5%
Isc13.4 A13.9 A3.7%
Impp13 A13.19 A1.5%
TcVoc-0.25 %/°C-0.29 %/°C±0.040 %/°C
TcPmax-0.3 %/°C-0.35 %/°C±0.050 %/°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

Original Panel Specs

Voc

47 V

Vmpp

40.1 V

Isc

13.4 A

Impp

13 A

TcVoc

-0.25 %/°C

TcPmax

-0.3 %/°C

Pmax

520 W

Cells

132

Length

2094 mm

Width

1134 mm

Thickness

30 mm

Weight

24.6 kg

The EcoFlow EF-SG-520 is a 520 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.

Frequently Asked Questions

What specs must match when replacing the EcoFlow EF-SG-520?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 47 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.

Can I use a higher wattage replacement for the EcoFlow EF-SG-520?

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.

What happens if the replacement panel has different voltage specs?

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 EcoFlow EF-SG-520.