Winter Operations

This document sets out the NESO policy on the order of control room actions for winter 2025/26.

The Winter Outlook report presents our view of the security of supply for the electricity systems for the winter ahead.

The Winter Outlook data workbook report presents our view of the security of supply for the electricity systems for the winter ahead.

This document sets out the NESO policy on the order of control room actions for winter 2024/25.

The Winter Outlook report presents our view of the security of supply for the electricity systems for the winter ahead.

The Winter Outlook data workbook report presents our view of the security of supply for the electricity systems for the winter ahead.

Our weekly Operational Transparency Forum (OTF) is where experts from the NESO 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 NESO 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 NESO 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 NESO has entered into at the request of the Department for Business, Energy & Industrial Strategy (BEIS).

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