Reference open circuit voltage
Module datasheet · V
Allowed range: 0.01 to 1000
Cold Temperature Voc Calculator
Apply a signed module voltage coefficient to a colder module temperature.
Open this toolA module's open circuit voltage can increase as its temperature drops. The datasheet coefficient provides the calculation basis.
Enter the signed Voc coefficient and a suitable cold module temperature. Compare the corrected voltage with the reference condition.
Inputs and controls
Voc temperature coefficient
Module datasheet · %/°C
Allowed range: -2 to 0
Reference cell temperature
Module datasheet · °C
Allowed range: -80 to 100
Minimum module temperature
Cold condition · °C
Allowed range: -80 to 100
Panels in series
Cold condition · panels
Allowed range: 1 to 1000
How to use
- Enter reference open circuit voltage, voc temperature coefficient and reference cell temperature.
- Enter minimum module temperature and panels in series.
- Select Calculate result. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why use this tool
Showing the coefficient and temperature makes the correction traceable during a string voltage review.
Before relying on the result
Uses a linear coefficient from the datasheet and an entered module temperature. A site minimum and equipment margin require design review. This does not select a permitted string length.
Tool limitations
Uses a linear coefficient from the datasheet and an entered module temperature. A site minimum and equipment margin require design review. This does not select a permitted string length.
Questions
Does this select the permitted series count?
No. Equipment voltage limits, site minimum temperatures and design margins need a separate string check.
What should I check before using Cold Temperature Voc Calculator?
Check Reference open circuit voltage, Voc temperature coefficient, Reference cell temperature and Minimum module temperature. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-01T18:56:36+00:00. This profile describes the tool; use its page to run it.
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