This String Calculator will help you decide how many PV modules you may use in series and parallel with a Morningstar charge controller.|
1. Select the PV module you will be using
2. Select the Morningstar controller you will be using
3. Result is the quantity of PV modules that may be used in series and parallel to safely operate within the charge controller ratings.
Disclaimer: Morningstar makes no representation, warranty or assumption of liability regarding the use of the String Calculator. This tool uses data provided by other parties (such as PV module specs) and makes calculations based on assumptions which may or may not prove to be valid.