West Hub's 7 AM real-time price hits $144.52/MWh, tops other hubs

Today's decision window runs Aug 26, 4 PM CDT to 11 PM CDT. Three things define it: the load-capacity setup, the market-model split, and the standing forecast-to-realized gap. First, the forecast gross-load peak rose 101 MW since yesterday's issue to 90,645 MW at 5 PM CDT, pushing the forecast capacity-less-load-and-ancillary-service calculation to -5,373 MW at 9 PM CDT, the weakest reading against its own trailing distribution.

Second, the cleared day-ahead curve and MetisCast's P50 path still disagree on level, with MetisCast pricing $20.1/MWh below the curve. Third, yesterday's called price premium missed on level, timing, and shape. Watch the cross-location RT-DA spread, realized load against the forecast, and West Hub's day-ahead peak of $158.93/MWh at 8 PM CDT.

Yesterday's cleared day-ahead awards implied a synchronized evening run-up, with selected hub peaks from $84.5/MWh at South Hub to $110.4/MWh at North Hub clustered near Aug 25, 8-9 PM CDT. Real time did not confirm that shape: realized peaks ranged from $58.4/MWh at South Hub, Aug 26, 5 AM CDT, to $144.5/MWh at West Hub, Aug 26, 7 AM CDT, with Houston's $73.5/MWh peak landing as early as Aug 25, 5 PM CDT.

This extends a run: the cleared curve's price level has missed in four of the last seven graded sessions, the last four in a row, and the realized peak has landed outside the called hour in five of seven, with real time settling entirely below the day-ahead range in three of those seven.

MetisCast keeps its own lean under that curve, per the model-versus-market divergence already on this board: its P50 path prices below the cleared award across the 17 shared hours, peaking well ahead of the curve's evening high. That lean is a standing bias built from the model's history, not tonight's verified level; the model's own peak call has held in only one of three graded sessions.

Texas carried a record hourly demand print of 90,614 MWh at 5 PM CDT on Aug 24, and separate coverage notes ERCOT prices holding comparatively steady despite that load pressure. Neither explains why last night's peak scattered across roughly twelve hours hub to hub instead of clustering as called. Whether tonight repeats or breaks that pattern rests on the calibrated RT-DA error band already framing this issue's evening call: inside it, the shape problem stays a timing quirk; outside it, today's price relationship needs a fresh read. 2 sourcesSources for this statementHourly Electric Grid Monitor - EIAeia.gov · 2026-08-25T00:00:00.000ZERCOT Prices Remain Steady Despite Record Load - FactSet Insightinsight.factset.com · 2026-08-25T00:00:00.000Z

MetisCast prices ERCOT Hub Average -$20.1/MWh against the cleared day-ahead curve across 17 joined hours. Its P50 tops out at $67.1/MWh at Aug 26, 6 PM CDT while the market cleared $143.7/MWh at Aug 26, 10 PM CDT. The two agree on when the evening matters and disagree on what it pays.

Real time diverged sharply across the footprint this morning. West Hub's hour-ending 7 AM CDT print reached $144.52/MWh, the session's outright hub-level high and the top of its same-hour recent range. North Hub printed $88.78/MWh at that same hour, elevated but well below West. South Hub's peak came three hours earlier, $45.67/MWh at 5 AM CDT, confirming the morning pressure did not move uniformly.

Underneath those levels, the real-time-to-day-ahead convergence spread flipped sign at three of four hubs since the prior issue. North Hub's mean spread collapsed to $0.63/MWh from $10.76/MWh, its local residual reversing from +$8.24/MWh to -$1.04/MWh. Houston moved the other way, from a -$3.50/MWh mean discount to a $2.70/MWh premium, residual swinging from -$6.02/MWh to +$1.03/MWh. South's mean spread also flipped, -$3.25/MWh to $0.60/MWh, residual -$5.77/MWh to -$1.07/MWh. The systemwide common component itself eased to $1.67/MWh from $2.52/MWh, and none of the four local residuals has broken its own historical band, so this is a coordinated systemwide easing, not a hub separating from the system.

For West Hub exposure, the cleared day-ahead award of $158.93/MWh at 8 PM CDT is the level tonight's real time either confirms or breaks; a sustained gap there is the first place a spatial dislocation would show up.

Realized system demand peaked at 89,744 MW at 6 PM CDT on Aug 25, three hours after committed capacity peaked at 112,196 MW at 4 PM CDT. That headroom read is a raw same-hour comparison, separate from tonight's forecast margin.

Reliability unit commitment rose to 3,209 MW for the 10 PM CDT hour on Aug 25, emptied to zero between 2 AM and 4 AM CDT, then rebuilt to 1,790 MW by 7 AM CDT. ERCOT deployed 1,929 MW of Non-Spin at 6:50 AM CDT and recalled it by 7:40 AM CDT, an overnight reliability action, not a scarcity signal. 2 sourcesSources for this statementGrid event: 3,209 MW of RUC-committed capacityERCOTGrid event: Operational InformationERCOT

Wind and solar forecast output peak in the overnight and midday windows respectively, each fading before tonight's ramp begins. Forecast outage capacity sits in the middle of its recent same-hour range, arguing against elevated forced-outage risk tonight.

FactSet's Aug 25 review found ERCOT prices stayed steady even as Texas load reached record levels this month, and ERCOT's own accounting puts the standing peak-demand record at 91,089 MW, set July 22, 2026. Today's forecast peak sits close enough to that mark to test whether the steady-price pattern holds again tonight. 2 sourcesSources for this statementERCOT Prices Remain Steady Despite Record Load - FactSet Insightinsight.factset.com · 2026-08-25T00:00:00.000ZTexas ERCOT looks to complete Texas data center audit by Decemberenergynewsbeat.co · 2026-08-21T00:00:00.000Z

West Hub is the location to watch through tonight's decision window: the cleared curve's West Hub day-ahead award peaks at $158.9/MWh at 8 PM CDT, and real time will either confirm that level or break below it. West Hub's own RT-DA residual, after removing the common convergence component, sits inside its calibrated band, so today's $2.7/MWh raw spread is not yet a standalone West dislocation. North, South, and Houston also hold inside their own bands; none currently separates from the system.

Open the West Hub real-time-versus-day-ahead panel and the hub comparison chart to track this live. If real time still runs above the cleared curve after 11 PM CDT, tonight's exposure carries past the decision window, and the rollover needs confirming before resetting into tomorrow's session.

Forecast-vintage policy. Every input in this issue was published at or before the knowledge cutoff. Forecast series are the latest vintage available at that instant and are never revised after the fact; realized history used for percentiles is guarded by the same cutoff. The preceding issue's frozen vintage is stored with the issue, so a revision is measured against what was actually published, not against a later correction. Not covered by this issue's data: Residual dispatchable demand; Reserve, PRC and contingency coverage; Weather-to-market translation. Each limitation is stated where it applies rather than filled in by inference.

Source and quality note. 29 of 29 requested issue series were available; 16 longer-lookback series provided the historical baselines. 43 event records were known at cutoff and 2 unchanged records were suppressed. Knowledge cutoff: Aug 26, 8:00 AM CDT.