Peak demand in NEM South Australia: 1224 MW, 2026-10-23 19:30 UTC

Context

Demand peak in NEM South Australia: 1224 MW in the 5-minute interval starting 2026-10-23 19:30 UTC. This is a record since 2026-10-23, the first date in our data for this market. The window is short, so the record says nothing about earlier years.

It beat the previous confirmed record of 1208 MW, set at 2026-10-23 18:25 UTC, by 16.50 MW (1.4%). That earlier record stays in the chain as superseded and remains visible at /records/demand-peak-sa-1792779900/.

Conditions in the data at the same time: NEM-SA1 price rt5 119.5 AUD/MWh (reading at 19:30 UTC). These are the readings nearest to the record interval in the same database, shown for context only; they do not explain the record on their own.

First seen in a batch fetched at 2026-10-23 19:33 UTC (payload 1a15605cc0). It was confirmed after a second batch fetched at 2026-10-23 20:18 UTC (payload 5bf694df2b): a later batch arrived, this feed does not republish old intervals, and the stored point stayed unrevised, unflagged and within 2%.

For comparison, the next most extreme valid reading in the same series is 1418.8 MW at 2026-10-24 09:40 UTC, out of 51 readings in the window.

Records are built from provisional operator data that can be revised, so each one is checked against later batches before it is confirmed and can be retracted if the source changes it. Readings outside market bounds, with a wrong unit, flagged by a quality gate or showing a price jump without a matching load change are rejected and never listed. See the methodology page for the full rules. Not for trading or operational decisions. Provisional data.

Previous record in this chain: 1208 MW, state superseded.