NEM South Australia: 2:20 h, 25 Oct 04:30 UTC
Longest since we started · Negative-price streak · NEM South Australia. Tracked since 23 Oct 2026, the first date in our data for this series. This is not a historical record.
Status: Tracking · since 23 Oct 2026 · notable (beat the previous value)
2:20D h
- Interval starting 2026-10-25T04:30:00Z (300 s)
- First seen 2026-10-25T07:56:12Z
- Checked against a second batch fetched 2026-10-25T08:15:25Z
Sources & licences
Data: Source: Australian Energy Market Operator (AEMO), NEMWEB. source licence Derived numbers and charts: CC BY 4.0, SolarCostData Data Desk (licence). Source data keeps its own licence.
Series around the value; the marked point is the tracked interval. Derived by SolarCostData from the published values.
Context
Longest negative price streak in NEM South Australia: an unbroken run of 28 consecutive 5-minute intervals with a price below zero, starting at 2026-10-25 04:30 UTC and lasting 2:20 h (h:mm). This is the longest such run since we started tracking this market on 2026-10-23.
It beat the previous value of 2:15 h, set at 2026-10-23 23:00 UTC, by 0.08 h (3.7%). That earlier value stays in the chain as superseded and remains visible at /records/longest-negative-streak-sa-1792796400/.
Conditions in the data at the same time: NEM-SA1 demand 574.4 MW (reading at 04:30 UTC). These are the readings nearest to the tracked interval in the same database, shown for context only; they do not explain the value on their own.
First seen in a batch fetched at 2026-10-25 07:56 UTC (payload backfill:3). It was checked after a second batch fetched at 2026-10-25 08:15 UTC (payload 85a8e7c27e): a later batch arrived, this feed does not republish old intervals, and the stored point stayed unrevised, unflagged and within 2%.
These values are built from provisional operator data that can be revised, so each one is checked against later batches before it is marked Tracking and can be withdrawn if the source changes it.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Previous value in this chain: 2:15 h, state superseded.
Not for trading or operational decisions. Provisional data.