Find replacement for DMEGC GH545M10T-B66HST

545 W TOPCon solar panel with 132 cells. Voc 48.58 V · Isc 14.14 A · TcVoc -0.25%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

24 panels found · 4315 panels excluded

DMEGC GH545M10T-B66HSW

545 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.58 V	0.0%
Vmpp	40.74 V	40.74 V	0.0%
Isc	14.14 A	14.14 A	0.0%
Impp	13.4 A	13.4 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH540M10T-B66HSW

540 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.38 V	0.4%
Vmpp	40.74 V	40.54 V	0.5%
Isc	14.14 A	14.08 A	0.4%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH550M10T-B66HSW

550 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.78 V	0.4%
Vmpp	40.74 V	40.94 V	0.5%
Isc	14.14 A	14.2 A	0.4%
Impp	13.4 A	13.45 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH540M10T-B66HST

540 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.38 V	0.4%
Vmpp	40.74 V	40.54 V	0.5%
Isc	14.14 A	14.08 A	0.4%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH550M10T-B66HST

550 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.78 V	0.4%
Vmpp	40.74 V	40.94 V	0.5%
Isc	14.14 A	14.2 A	0.4%
Impp	13.4 A	13.45 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH535M10T-B66HST

535 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.18 V	0.8%
Vmpp	40.74 V	40.34 V	1.0%
Isc	14.14 A	14.02 A	0.8%
Impp	13.4 A	13.28 A	0.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH535M10T-B66HSW

535 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.18 V	0.8%
Vmpp	40.74 V	40.34 V	1.0%
Isc	14.14 A	14.02 A	0.8%
Impp	13.4 A	13.28 A	0.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS545TC-MHO-D

545 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.52 V	0.1%
Vmpp	40.74 V	40.84 V	0.2%
Isc	14.14 A	14.41 A	1.9%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS550TC-MHO-D

550 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.76 V	0.4%
Vmpp	40.74 V	41.04 V	0.7%
Isc	14.14 A	14.47 A	2.3%
Impp	13.4 A	13.4 A	0.0%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS540TC-MHO-D

540 W

TOPCon

75Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.27 V	0.6%
Vmpp	40.74 V	40.64 V	0.2%
Isc	14.14 A	14.35 A	1.5%
Impp	13.4 A	13.29 A	0.8%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS560TC-MHA-D

560 W

TOPCon

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.51 V	0.1%
Vmpp	40.74 V	40.48 V	0.6%
Isc	14.14 A	14.61 A	3.3%
Impp	13.4 A	13.83 A	3.2%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

WINAICO WST-540NGX-D3

540 W

TOPCon

70Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	47.63 V	2.0%
Vmpp	40.74 V	40.79 V	0.1%
Isc	14.14 A	14.01 A	0.9%
Impp	13.4 A	13.24 A	1.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°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

48.58 V

Vmpp

40.74 V

Isc

14.14 A

Impp

13.4 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

545 W

Cells

132

Bifaciality

80%

Length

2094 mm

Width

1134 mm

Thickness

25 mm

Weight

28.7 kg

The DMEGC GH545M10T-B66HST is a 545 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.

Other models in this series

Model	Power	Voc	Isc
GH535M10T-B66HST	535 W	48.18 V	14.02 A
GH540M10T-B66HST	540 W	48.38 V	14.08 A
GH550M10T-B66HST	550 W	48.78 V	14.2 A

Frequently Asked Questions

What specs must match when replacing the DMEGC GH545M10T-B66HST?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 48.58 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 DMEGC GH545M10T-B66HST?

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 DMEGC GH545M10T-B66HST.

All replacements

Find replacement for DMEGC GH545M10T-B66HST

545 W TOPCon solar panel with 132 cells. Voc 48.58 V · Isc 14.14 A · TcVoc -0.25%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

24 panels found · 4315 panels excluded

DMEGC GH545M10T-B66HSW

545 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.58 V	0.0%
Vmpp	40.74 V	40.74 V	0.0%
Isc	14.14 A	14.14 A	0.0%
Impp	13.4 A	13.4 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH540M10T-B66HSW

540 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.38 V	0.4%
Vmpp	40.74 V	40.54 V	0.5%
Isc	14.14 A	14.08 A	0.4%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH550M10T-B66HSW

550 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.78 V	0.4%
Vmpp	40.74 V	40.94 V	0.5%
Isc	14.14 A	14.2 A	0.4%
Impp	13.4 A	13.45 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH540M10T-B66HST

540 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.38 V	0.4%
Vmpp	40.74 V	40.54 V	0.5%
Isc	14.14 A	14.08 A	0.4%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH550M10T-B66HST

550 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.78 V	0.4%
Vmpp	40.74 V	40.94 V	0.5%
Isc	14.14 A	14.2 A	0.4%
Impp	13.4 A	13.45 A	0.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH535M10T-B66HST

535 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.18 V	0.8%
Vmpp	40.74 V	40.34 V	1.0%
Isc	14.14 A	14.02 A	0.8%
Impp	13.4 A	13.28 A	0.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH535M10T-B66HSW

535 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.18 V	0.8%
Vmpp	40.74 V	40.34 V	1.0%
Isc	14.14 A	14.02 A	0.8%
Impp	13.4 A	13.28 A	0.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS545TC-MHO-D

545 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.52 V	0.1%
Vmpp	40.74 V	40.84 V	0.2%
Isc	14.14 A	14.41 A	1.9%
Impp	13.4 A	13.34 A	0.4%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS550TC-MHO-D

550 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.76 V	0.4%
Vmpp	40.74 V	41.04 V	0.7%
Isc	14.14 A	14.47 A	2.3%
Impp	13.4 A	13.4 A	0.0%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS540TC-MHO-D

540 W

TOPCon

75Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.27 V	0.6%
Vmpp	40.74 V	40.64 V	0.2%
Isc	14.14 A	14.35 A	1.5%
Impp	13.4 A	13.29 A	0.8%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS560TC-MHA-D

560 W

TOPCon

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	48.51 V	0.1%
Vmpp	40.74 V	40.48 V	0.6%
Isc	14.14 A	14.61 A	3.3%
Impp	13.4 A	13.83 A	3.2%
TcVoc	-0.25 %/°C	-0.23 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

WINAICO WST-540NGX-D3

540 W

TOPCon

70Acceptable

Parameter	Original	Replacement	Deviation
Voc	48.58 V	47.63 V	2.0%
Vmpp	40.74 V	40.79 V	0.1%
Isc	14.14 A	14.01 A	0.9%
Impp	13.4 A	13.24 A	1.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°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

48.58 V

Vmpp

40.74 V

Isc

14.14 A

Impp

13.4 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

545 W

Cells

132

Bifaciality

80%

Length

2094 mm

Width

1134 mm

Thickness

25 mm

Weight

28.7 kg

Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.

Other models in this series

Model	Power	Voc	Isc
GH535M10T-B66HST	535 W	48.18 V	14.02 A
GH540M10T-B66HST	540 W	48.38 V	14.08 A
GH550M10T-B66HST	550 W	48.78 V	14.2 A