ERCOT peak demand today
ERCOT's forecast peak for today and tomorrow, the load so far, and every recent day's settled peak, measured the way ERCOT reports it: the highest hourly total of the operating day.
ERCOT peak demand today
ERCOT's forecast peak for today and tomorrow, the load so far, and every recent day's settled peak, measured the way ERCOT reports it: the highest hourly total of the operating day.
ERCOT peak demand, Tue, Oct 6
Forecast peak today, Oct 6
69,877 MW
4 PM–5 PM CT · ERCOT forecast issued 2:30 AM CT
Highest hour so far today
51,978 MW
12 AM–1 AM CT · provisional, from 5-minute load
Forecast peak tomorrow, Oct 7
71,038 MW
4 PM–5 PM CT · ERCOT's latest forecast
Settled peak, Oct 4
60,263 MW
7 PM–8 PM CT · highest hourly total, NP6-346-CD
Load so far (provisional)ERCOT forecast
What this shows
How the peak is measured
ERCOT's daily peak is the highest hourly total in its Actual System Load by Forecast Zone report (NP6-346-CD) for the operating day, in Central time, hour ending 1 to 24. Each value is the average load over a full hour. The instantaneous readings ERCOT also publishes run higher and are a different number.
Forecast, provisional and settled
Today's and tomorrow's peaks come from ERCOT's own seven-day load forecast, its latest issue. Today's hours so far are provisional: the mean of ERCOT's five-minute real-time load for each hour. A day's settled peak arrives with ERCOT's hourly report the following day.
What people ask
How is ERCOT's daily peak demand measured?
As the highest hourly total in ERCOT's Actual System Load by Forecast Zone report (NP6-346-CD) for the operating day. Each hourly value is the average load across that full hour, in Central time. ERCOT's dashboards also show instantaneous load, which is higher and is not the same number.
When is a day's peak final?
When ERCOT publishes that operating day's hourly report, the following day. Until then the hours shown for today are provisional: the hourly mean of ERCOT's five-minute real-time load.
Which report is ERCOT's official daily peak taken from?
ERCOT's Actual System Load by Forecast Zone report (NP6-346-CD): the highest value in its TOTAL column for the operating day, as first published. This page reads that report directly.