Chart of the week | Grand unveiling: Dynamic Containment goes live

At 11pm on 1 October National Grid ESO debuted its new frequency response service, Dynamic Containment (DC). This is the first in a suite of new faster-acting response services, designed to address significant frequency deviations when they occur on the transmission system.  

The roll-out of this new post-fault response service will help to respond to frequency events faster (with response times of no more than one second), and should see the ESO make fewer interventions to manage system frequency as a result – with the stated aim of lowering overall balancing costs.  

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