Austin Energy · Congestion Costs
- One mark per settlement point per interval, at its price, sized by its megawatts.
- Shaded band is the basis — red the fleet is paid less than Austin Energy pays at LZ_AEN, green more.
- Marks cluster when the grid is clear and spread when it congests.
- Hover for the interval's plants; click to pin.
Cumulative basis cost through the year
Hover for a running total.
- Running total from 1 January, one line per year; the slope is the rate at which basis is costing Austin Energy.
- Cost is generation MWh times the shortfall against LZ_AEN, so a steep stretch means a wide basis, a lot of output, or both.
- Dashed lines are part years.
How long a bad basis lasts
Hover a segment.
- Every stretch where the fleet was paid below LZ_AEN, bucketed by how long it ran and stacked by the worst it got. Covers all $828.6M of adverse basis; the $0–10 band alone is $174.0M across half of all intervals.
- Height is cost — generation MWh times the shortfall, summed over the episode — not how often it happened. Episode counts are shown under each total.
- Each episode is counted once, in the band of its worst interval.