Highest · Demand · Great Britain: 34004 MW, 23 Oct 17:00 UTC
Highest since we started · Demand · Great Britain. Tracked since 23 Oct 2026, the first date in our data for this series. This is not a historical record.
Status: Tracking · since 23 Oct 2026 · baseline
34004M MW
- Interval starting 2026-10-23T17:00:00Z (300 s)
- First seen 2026-10-23T19:18:45Z
- Checked against a second batch fetched 2026-10-23T19:35:29Z
Sources & licences
Data: Contains BMRS data © Elexon Limited copyright and database right 2026. source licence Derived numbers and charts: CC BY 4.0, SolarCostData Data Desk (licence). Source data keeps its own licence.
Series around the value; the marked point is the tracked interval. Derived by SolarCostData from the published values.
Context
Highest since we started · Demand in Great Britain: 34004 MW in the 5-minute interval starting 2026-10-23 17:00 UTC. We have tracked this market since 2026-10-23. The window is short, so this says nothing about earlier years.
No earlier tracked value of this kind exists in our data window, so this entry is a baseline that later readings can beat. Baseline entries are not marked notable and are not offered to search engines.
Conditions in the data at the same time: GB wind 11040.0 MW (reading at 17:00 UTC); GB renewable share 53.5 % (reading at 17:00 UTC); GB price imb30 145.0 GBP/MWh (reading at 17:00 UTC). These are the readings nearest to the tracked interval in the same database, shown for context only; they do not explain the value on their own.
First seen in a batch fetched at 2026-10-23 19:18 UTC (payload 04e8c83a23). It was checked after a second batch fetched at 2026-10-23 19:35 UTC (payload 7953f58f31): a later batch arrived, this feed does not republish old intervals, and the stored point stayed unrevised, unflagged and within 2%.
For comparison, the next most extreme valid reading in the same series is 34002.0 MW at 2026-10-23 17:30 UTC, out of 88 readings in the window.
These values are built from provisional operator data that can be revised, so each one is checked against later batches before it is marked Tracking and can be withdrawn if the source changes it. Readings outside market bounds, with a wrong unit, flagged by a quality gate or showing a price jump without a matching load change are rejected and never listed. See the methodology page for the full rules. Not for trading or operational decisions. Provisional data.
Not for trading or operational decisions. Provisional data.