MORE DATA AND ANALYSIS

Following the power outage in various parts of Great Britain in August 2019, this website has been updated to include a live plot of frequency data and the ability to choose what type of data to plot.

LAST TEN MINUTES

This graph shows GB mains frequency for the last ten minutes. At the present time it does not auto-refresh but this may be introduced at a later date. You can refresh manually using the button below.

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AVERAGE FREQUENCY OVER PAST (UP TO) 24 HOURS

DISTRIBUTION OF FREQUENCY MEASUREMENTS

This graph shows the distribution of measured frequencies for up to the past 24 hours. Measurements are taken each second and used to create the distribution curve.

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