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10 January 2024

December 22nd frequency event: How did batteries respond?

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December 22nd frequency event: How did batteries respond?

On December 22nd 2023, one of the interconnectors between France and the UK (IFA2) tripped at 13:09, causing a sudden shortage of power flowing to the grid. All three frequency response services kicked in at full power to restore system frequency. This resulted in a maximum of 1.2 GW of power being discharged from batteries.

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