Solar Panel Open Circuit Voltage

Measuring voltage and solar panel testing.

Solar panel open circuit voltage.

Consult your solar panel s documentation for information or contact our technical support desk. Temperature coefficient of voltage. Silicon solar cells on high quality single crystalline material have open circuit voltages of up to 764 mv under one sun and am1 5 conditions1 while commercial devices on multicrystalline silicon typically have open circuit voltages around 600 mv. If you just measure with a voltmeter across the plus and minus leads you will read voc.

Some exceptions may apply based on panel type. Open circuit voltage voc the open circuit voltage is the maximum voltage that the solar panel can produce with no load on it i e. Open circuit voltage voc open circuit voltage is how many volts the solar panel outputs with no load on it. Voltage at open circuit voc voltage at maximum power vmp or vpm nominal voltage.

Since the solar panel isn t connected to anything there is no load on it and it is producing no current. If two or more panels are wired in series it will be voc of panel 1 voc of panel 2 etc. Open circuit voltage is then a measure of the amount of recombination in the device.