SWIS evening ramp reached a new record

Operational demand rose 2385 MW from the daily minimum to the evening peak, exceeding the previous 2362 MW record.

Operating context

Evening operational ramp, around the event.

Triggered value

2,385 MW

Prior-window average

1,575 MW

Post-event average

1,580 MW

Cursor observation

22 Dec 2024

2,385 MW

The red marker is the detected event. The dashed line is the stated trigger or previous-record reference, not a modelled expectation.

Event-day energy mix

Coal36.6%

Gas34.9%

Wind21.4%

Other scheduled generation3.9%

Utility solar3.2%

Detection boundary

Trigger. Evening operational ramp reached 2,385 MW against a 2,362 MW reference.

A steeper ramp raises the quantity and speed of dispatchable response required as rooftop solar output falls away.

This is a deterministic measurement flag. It does not assign causality, estimate commercial exposure or claim the operating outcome was unsafe.

Related precedents