Find replacement for Suntech STP640S-C78/Nsh+

640 W panel, 156 cells

Original Panel905

Select the panel you want to replace

String Compatibility Calculator

Verify the replacement panel works with your inverter

How the Algorithm Works

Learn how panels are scored and matched

Panel Matcher

Find all compatible panels for a specific inverter

Original Panel Specs

Voc

56.18 V

Vmpp

46.16 V

Isc

14.54 A

Impp

13.86 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

640 W

Cells

156

Bifaciality

80%

The Suntech STP640S-C78/Nsh+ is a 640 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.