Introduction
Use this solar calculator/compatibility calculator to help determine the electrical compatibility of PV
modules with the APsystems microinverter family.
Refer to the PV module manufacturer's datasheet for correct values. All fields are required.
Voc (Voltage at Open Circuit)
The Voc is the voltage that is read with a voltmeter or multimeter when the module is not connected to any
load.
Vmp(Voltage at Maximum Power)
The Vmp is the voltage that is read with a voltmeter or multimeter when the module is producing maximum
power.
Temperature Coefficient of Voc
Coefficient used to determine effect of temperature on a PV module's open circuit voltage. Contact your
manufacturer if this value is not listed on the datasheet.
Temperature Coefficient of Isc
Coefficient used to determine effect of temperature on a PV module's short circuit current. Contact your
manufacturer if this value is not listed on the datasheet.