UK electricity initial demand outturn
UK electricity initial demand outturn stood at 25,069.05 MW on Oct 19, 2026, according to Elexon (BMRS). It is one of the indicators in the Electricity system, daily table (Value · Daily), with a complete series running from Aug 1, 2025 to Oct 19, 2026. The complete series with an interactive chart, free to download.
This indicator in the Electricity system, daily table
| Indicator | 19-10-2026 | 18-10-2026 | 17-10-2026 | 16-10-2026 | 15-10-2026 | 14-10-2026 | 13-10-2026 | 12-10-2026 | 11-10-2026 | 10-10-2026 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Demand and generation by fuel (Elexon) | |||||||||||
| Initial demand outturn | 25,069.05 | 25,120.15 | 24,460.19 | 26,086.79 | 26,562.04 | 25,191.73 | 24,095.63 | 27,574 | 24,177.63 | 21,816.35 |
Understanding UK electricity initial demand outturn
Initial demand outturn measures the instantaneous electrical power required to satisfy system load across Great Britain, as recorded at transmission system boundaries by the balancing mechanism administrator. This series captures total metered demand before final settlement adjustments, distinguishing it from refined transmission or national demand measures that incorporate embedded generation or distribution network losses. The geographic scope is strictly limited to Great Britain, excluding Northern Ireland entirely.
Interpreting these figures requires accounting for strong diurnal and seasonal patterns driven by weather and working routines, alongside balancing adjustments that can revise early figures. Comparing consecutive days can be misleading due to weekend effects, making matching weekday-to-weekday or corresponding seasonal periods much more robust. Analysts should avoid treating initial outturn as final consumption, as transmission losses and unmetered embedded generation alter the final balance of energy delivered to end users.
Frequently asked questions
- What does initial demand outturn actually count?
- It records the total instantaneous power pulled from the transmission system across Great Britain before final settlement reconciliations.
- Why does this series differ from final consumption figures?
- Transmission and distribution losses, plus electricity generated by smaller embedded solar and wind sites, are excluded from this metered total.
- How should day-to-day comparisons be approached?
- Comparing identical days of the week or matching seasonal periods is essential to avoid distortions caused by standard working routines and weather changes.