Demand Flexibility Service 2023/24

National Grid ESO are again launching the Demand Flexibility Service (DFS) for Winter 2023/24. The service allows the ESO to access additional flexibility when the national demand is at its highest – during peak winter days – which is not currently accessible to the ESO in real time. The service will allow consumers – both domestic and I&C – to be incentivised for voluntarily flexing the time during which they use their electricity.

This dataset contains updates and information relating to both live and test DFS events.

ESO have launched the Demand Flexibility Service (DFS) for winter 2023/24. The service allows the ESO to access additional flexibility when the national demand is at its highest – during peak winter days – which is not currently accessible to the ESO in real time. The service will allow consumers – both domestic and I&C – to be incentivised for voluntarily flexing the time during which they use their electricity.

Text message/SMS alerts are available for this dataset. This dataset will contain the following files:

• DFS Utilisation Report: this file will provide details of accepted and rejected bids for both live and test events, and includes a breakdown by GSP. The ESO will endeavour to update this file within one hour of bid submission gate closure – which occurs one hour after the DFS service requirements are issued. Note: this file will only be updated on days with a corresponding DFS service requirement.
  
• DFS Utilisation Report Summary: this file will provide a summary of the demand flexibility volumes procured and delivered for both live and test events. The file will be updated after the DFS utilisation report has been updated, and/or when the relevant settlements data has been processed.
  
• DFS Industry Notifications: this file will indicate when the ESO anticipates publishing a DFS service requirement for a live or test event, and will provide additional information pertaining to issuing a DFS service requirement.
  
• DFS Service Requirement: this file will contain details of service requirements for both live and test events.”