Australian Power Grid Frequency Live

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Grid Frequency — Last Three Hours

Normal operating band (49.85-50.15 Hz)

Typical range (49.970-50.030 Hz; fixed fallback)

Nominal frequency (50.000 Hz)

Live frequency updates every 2 seconds. History graph uses 10-second averages and refreshes every 10 seconds. The boxed 3-hour summary figures refresh every 30 seconds.

3-hour mean --.--- Hz

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Maximum --.--- Hz

Std deviation --.- mHz

In typical range --.-%

3-hour clock error —

Frequency Distribution — Last Three Hours

Individual frequency readings grouped into 2 mHz (0.002 Hz) bins.
Updates every five minutes.

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Frequency (Hz) along the bottom; number of readings up the side. The bold green line marks 50 Hz. Missing readings are excluded, not estimated. The time window follows the rolling three-hour graph but refreshes less often.