Find replacement for Sunpro Power SPDG455-144M

455 W PERC solar panel with 144 cells. Voc 49.9 V · Isc 11.65 A · TcVoc -0.29%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

13 panels found · 4326 panels excluded

Sunpro Power SPDG460-144M

460 W

PERC

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50 V	0.2%
Vmpp	41.1 V	41.2 V	0.2%
Isc	11.65 A	11.69 A	0.3%
Impp	11.08 A	11.17 A	0.8%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG450-144M

450 W

PERC

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.8 V	0.2%
Vmpp	41.1 V	41 V	0.2%
Isc	11.65 A	11.56 A	0.8%
Impp	11.08 A	10.98 A	0.9%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG445-144M

445 W

PERC

88Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.7 V	0.4%
Vmpp	41.1 V	40.9 V	0.5%
Isc	11.65 A	11.45 A	1.7%
Impp	11.08 A	10.89 A	1.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG440-144M

440 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.6 V	0.6%
Vmpp	41.1 V	40.8 V	0.7%
Isc	11.65 A	11.34 A	2.7%
Impp	11.08 A	10.79 A	2.6%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

S-Energy SL45-72BDI-440Z

440 W

PERC

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.1 V	0.4%
Vmpp	41.1 V	41.7 V	1.5%
Isc	11.65 A	11.44 A	1.8%
Impp	11.08 A	10.56 A	4.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

Sunpro Power SPDG435-144M

435 W

PERC

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.5 V	0.8%
Vmpp	41.1 V	40.7 V	1.0%
Isc	11.65 A	11.23 A	3.6%
Impp	11.08 A	10.69 A	3.5%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

S-Energy SL45-72BDI-445Z

445 W

PERC

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.3 V	0.8%
Vmpp	41.1 V	41.9 V	1.9%
Isc	11.65 A	11.51 A	1.2%
Impp	11.08 A	10.63 A	4.1%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

S-Energy SL45-72BDI-450Z

450 W

PERC

66Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.5 V	1.2%
Vmpp	41.1 V	42.1 V	2.4%
Isc	11.65 A	11.58 A	0.6%
Impp	11.08 A	10.69 A	3.5%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

S-Energy SL45-72BDI-455Z

455 W

PERC

60Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.7 V	1.6%
Vmpp	41.1 V	42.3 V	2.9%
Isc	11.65 A	11.65 A	0.0%
Impp	11.08 A	10.76 A	2.9%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

DMEGC DM440M6-B72HSW

440 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.97 V	0.1%
Vmpp	41.1 V	40.6 V	1.2%
Isc	11.65 A	11.26 A	3.3%
Impp	11.08 A	10.84 A	2.2%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°C	±0.050 %/°C

DMEGC DM445M6-B72HSW

445 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.12 V	0.4%
Vmpp	41.1 V	40.77 V	0.8%
Isc	11.65 A	11.35 A	2.6%
Impp	11.08 A	10.92 A	1.4%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°C	±0.050 %/°C

DMEGC DM450M6-B72HSW

450 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.27 V	0.7%
Vmpp	41.1 V	40.91 V	0.5%
Isc	11.65 A	11.43 A	1.9%
Impp	11.08 A	11.01 A	0.6%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°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

49.9 V

Vmpp

41.1 V

Isc

11.65 A

Impp

11.08 A

TcVoc

-0.29 %/°C

TcPmax

-0.34 %/°C

Pmax

455 W

Cells

144

Bifaciality

70%

Length

2094 mm

Width

1038 mm

Thickness

35 mm

Weight

26.1 kg

The Sunpro Power SPDG455-144M is a 455 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
SPDG435-144M	435 W	49.5 V	11.23 A
SPDG440-144M	440 W	49.6 V	11.34 A
SPDG445-144M	445 W	49.7 V	11.45 A
SPDG450-144M	450 W	49.8 V	11.56 A
SPDG460-144M	460 W	50 V	11.69 A

Frequently Asked Questions

What specs must match when replacing the Sunpro Power SPDG455-144M?

The most critical specs to match are: cell count (must be exactly 144), Voc close to 49.9 V (within ±5%), and temperature coefficient TcVoc close to -0.29%/°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 Sunpro Power SPDG455-144M?

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 Sunpro Power SPDG455-144M.

All replacements

Find replacement for Sunpro Power SPDG455-144M

455 W PERC solar panel with 144 cells. Voc 49.9 V · Isc 11.65 A · TcVoc -0.29%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

13 panels found · 4326 panels excluded

Sunpro Power SPDG460-144M

460 W

PERC

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50 V	0.2%
Vmpp	41.1 V	41.2 V	0.2%
Isc	11.65 A	11.69 A	0.3%
Impp	11.08 A	11.17 A	0.8%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG450-144M

450 W

PERC

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.8 V	0.2%
Vmpp	41.1 V	41 V	0.2%
Isc	11.65 A	11.56 A	0.8%
Impp	11.08 A	10.98 A	0.9%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG445-144M

445 W

PERC

88Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.7 V	0.4%
Vmpp	41.1 V	40.9 V	0.5%
Isc	11.65 A	11.45 A	1.7%
Impp	11.08 A	10.89 A	1.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

Sunpro Power SPDG440-144M

440 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.6 V	0.6%
Vmpp	41.1 V	40.8 V	0.7%
Isc	11.65 A	11.34 A	2.7%
Impp	11.08 A	10.79 A	2.6%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

S-Energy SL45-72BDI-440Z

440 W

PERC

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.1 V	0.4%
Vmpp	41.1 V	41.7 V	1.5%
Isc	11.65 A	11.44 A	1.8%
Impp	11.08 A	10.56 A	4.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

Sunpro Power SPDG435-144M

435 W

PERC

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.5 V	0.8%
Vmpp	41.1 V	40.7 V	1.0%
Isc	11.65 A	11.23 A	3.6%
Impp	11.08 A	10.69 A	3.5%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.34 %/°C	±0.000 %/°C

S-Energy SL45-72BDI-445Z

445 W

PERC

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.3 V	0.8%
Vmpp	41.1 V	41.9 V	1.9%
Isc	11.65 A	11.51 A	1.2%
Impp	11.08 A	10.63 A	4.1%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

S-Energy SL45-72BDI-450Z

450 W

PERC

66Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.5 V	1.2%
Vmpp	41.1 V	42.1 V	2.4%
Isc	11.65 A	11.58 A	0.6%
Impp	11.08 A	10.69 A	3.5%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

S-Energy SL45-72BDI-455Z

455 W

PERC

60Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.7 V	1.6%
Vmpp	41.1 V	42.3 V	2.9%
Isc	11.65 A	11.65 A	0.0%
Impp	11.08 A	10.76 A	2.9%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.34 %/°C	-0.36 %/°C	±0.020 %/°C

DMEGC DM440M6-B72HSW

440 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	49.97 V	0.1%
Vmpp	41.1 V	40.6 V	1.2%
Isc	11.65 A	11.26 A	3.3%
Impp	11.08 A	10.84 A	2.2%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°C	±0.050 %/°C

DMEGC DM445M6-B72HSW

445 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.12 V	0.4%
Vmpp	41.1 V	40.77 V	0.8%
Isc	11.65 A	11.35 A	2.6%
Impp	11.08 A	10.92 A	1.4%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°C	±0.050 %/°C

DMEGC DM450M6-B72HSW

450 W

TOPCon

58Marginal

Parameter	Original	Replacement	Deviation
Voc	49.9 V	50.27 V	0.7%
Vmpp	41.1 V	40.91 V	0.5%
Isc	11.65 A	11.43 A	1.9%
Impp	11.08 A	11.01 A	0.6%
TcVoc	-0.29 %/°C	-0.25 %/°C	±0.040 %/°C
TcPmax	-0.34 %/°C	-0.29 %/°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

49.9 V

Vmpp

41.1 V

Isc

11.65 A

Impp

11.08 A

TcVoc

-0.29 %/°C

TcPmax

-0.34 %/°C

Pmax

455 W

Cells

144

Bifaciality

70%

Length

2094 mm

Width

1038 mm

Thickness

35 mm

Weight

26.1 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
SPDG435-144M	435 W	49.5 V	11.23 A
SPDG440-144M	440 W	49.6 V	11.34 A
SPDG445-144M	445 W	49.7 V	11.45 A
SPDG450-144M	450 W	49.8 V	11.56 A
SPDG460-144M	460 W	50 V	11.69 A