Winter Operations

Our weekly Operational Transparency Forum (OTF) is where experts from the ESO review the previous week’s activities. It provides an update on recent events and holds a live question and answer session focusing on ENCC operations and activities.

DFS was introduced in winter (22/23) to access additional flexibility typically over winter peak days when national demand is at its highest. As part of a range of tools designed to help manage the electricity system this winter, we want to collaborate with providers to allow participating consumers and businesses to reduce their bills this winter.

Helping to inform the electricity industry and prepare for the winter ahead.

This document provides information related to the instigation of Demand Control and the notices and warnings that may be issued in the period preceding.

This document provides clarity of the guidelines we apply to interconnector operation to manage situations where there is a risk of demand control in GB.

This document illustrates ESO policy on the interaction of Capacity Market Notices with our operational decision making.

This document provides an overview of the Demand Flexibility Service.

This document illustrates ESO policy in the event that required system and/or energy actions exceed the cost of Value of Lost Load (VoLL) as established under the Balancing and Settlement Code.

This document provides additional detail on the Winter Contingency Contracts that ESO has entered into at the request of the Department for Business, Energy & Industrial Strategy (BEIS).

This document sets out the ESO policy on the order of actions it will take, particularly with respect to the Winter Contingency Contracts and the Demand Flexibility Service.