PV electrical basics

Industry Term

Voc (Voltage at Open Circuit)

The voltage of a PV module when no load is applied, i.e., the PV inverter is not producing.

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What does Voc (Voltage at Open Circuit) mean?

The voltage of a PV module when no load is applied, i.e., the PV inverter is not producing.

How is Voc (Voltage at Open Circuit) used in solar design?

This term affects electrical design, string sizing, code checks, equipment ratings, and safe installation. In solar, the numbers are not decoration; they are the guardrails.

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