Peak ledger
Saturday, August 15, 2026
Our call
◇ 2%
CLEAR · window 3:00 PM CT–5:00 PM CT
the chance the day would set August's peak
The day
87.8 GW
max system load
Outcome
RANK 3
beaten, the month leader is 87.1 GW
What was behind the 2%
- Forecast max
- 88.4 GW
- Month max
- 88.1 GW
- Margin
- 0.3 GW
- Temp anomaly
- +0.7 °F
- Est. curtailment
- 1.5 GW
- Est. battery
- -0.2 GW
- p (raw)
- 30%
- p (final)
- 2%
model hybrid-1.1.0 · computed 11:58 PM CT · stress-test these drivers →
This day ranks #3 of 15 observed days this month. Watch the replay → · See the full month ladder →
All values from real ERCOT feeds. Calls are logged to an append-only hash chain before intervals close (methodology). Free to republish with a link: "Peak data by WattMarkets".