Peak ledger

Monday, August 17, 2026

Our call
56%
WARNING · window 3:00 PM CT–5:00 PM CT
the chance the day would set August's peak
The day
89.1 GW
max system load
Outcome
MONTH LEADER
currently holds this month's provisional peak
What was behind the 56%
Forecast max
90.6 GW
Month max
88.1 GW
Margin
2.5 GW
Temp anomaly
+0.5 °F
Est. curtailment
1.5 GW
Est. battery
-0.2 GW
p (raw)
70%
p (final)
56%

model hybrid-1.1.0 · computed 11:58 PM CT · stress-test these drivers →

As of today, Monday holds the month's provisional peak. 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".