The Upsolar PV String Calculator has been designed to estimate typical string performance (Voc, Vmp, Pm), using different types of Upsolar modules and under different operating conditions. Whatever configurations result from the use of this online tool shall be duly confirmed by a professional system engineer to ensure that all elements of the system are appropriately selected and assembled. Accurate output of the Upsolar PV String Calculator relies on the input of accurate data, and does not take into account all BOS specifications, e.g. inverter specifications. Upsolar is not liable for damages resulting from the use of the Upsolar PV String Calculator.
Please choose the array operating temperatures, module make, and model below.
Change to "Module Working Temperature Range"
Temperature Celsius or Fahrenheit Lowest Ambient Temp
Highest Operating Cell Temperature
System Voltage
Module Selection Module:
Max Power Pm  Wp Max Power Voltage Vm  V Max Power Current Im  A
    Open-Circuit Voltage Voc  V Short-Circuit Current Isc  A
Temperature Coefficient of Voc %/°C Temperature Coefficient of Pm %/°C Temperature Coefficient of Vm %/°C
STC = 1000 W/M², 1.5 AM, 25C°
Result & Solution