SWIS evening ramp reached a new record

Operational demand rose 2362 MW from the daily minimum to the evening peak, exceeding the previous 1885 MW record.

Operating context

Evening operational ramp, around the event.

Triggered value

2,362 MW

Prior-window average

1,493 MW

Post-event average

1,535 MW

Cursor observation

21 Nov 2023

2,362 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

Gas35.3%

Coal32.3%

Wind27.1%

Other scheduled generation3.0%

Utility solar2.3%

Detection boundary

Trigger. Evening operational ramp reached 2,362 MW against a 1,885 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