Peak ledger
Thursday, August 20, 2026
Our call
◇ 8%
CLEAR · window 2:00 PM CT–5:00 PM CT
the chance the day would set August's peak
The day
90.6 GW
max at 4:50 PM CT
Outcome
RANK 2
beaten, the month leader is 91.0 GW
What was behind the 8%
- Forecast max
- 90.8 GW
- Month max
- 89.7 GW
- Margin
- 1.0 GW
- Temp anomaly
- +1.6 °F
- Est. curtailment
- 1.5 GW
- Est. battery
- -0.2 GW
- p (raw)
- 71%
- p (final)
- 8%
model hybrid-1.1.0 · computed 11:58 PM CT · stress-test these drivers →
This day ranks #2 of 31 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".