Winter Peak Demand - Data Type Definitions
Dataset description:
This dataset provides forecast and actual Winter Peak Gross Demands up to 23/24 and forecast and actual Winter Peak Relevant Demand from 24/25 by delivery years.
Under the Capacity Market (CM), Suppliers are obligated to pay a monthly CM Supplier Charge to cover the costs of Capacity Provider payments, where they have made a supply during the Peak Period. Up to and including Winter 23/24 this charge was apportioned across Suppliers by their share of the Total Gross Demand for the Peak Period within a Delivery Year. From Winter 24/25 onwards this charge is apportioned across Suppliers by their share of the Total Relevant Demand for the Peak Period within a Delivery Year. The Peak Period shall mean the Winter months between Nov - Feb (inclusive).
For Data for Winter 24/25 onwards 100% exemption for EII applies (Relevant Demand).
Source: Winter Peak Demand
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Additional Information
| Field | Value |
|---|---|
| Data last updated | December 8, 2025 |
| Metadata last updated | December 8, 2025 |
| Created | December 8, 2025 |
| Format | CSV |
| License | UK Open Government Licence (OGL) |
| Datastore active | False |
| Has views | False |
| Id | 430c2db7-f339-498b-ade2-6e41ea213f7f |
| Mimetype | text/csv |
| Owner org | lccc |
| Package id | b922e15f-6068-48da-8d96-addb81cbad12 |
| Position | 2 |
| Size | 106 bytes |
| State | active |
| Url type | upload |