Commodity Demand — NSW1 — Sunday 3 May 2026

NSW spot is at $56.06/MWh with demand sitting at 7,230 MW as of 06:35 AEST. That demand level sits well below the intraday peak of 8,627 MW reached around 18:45 AEST, during which prices pressed into the $68–$79/MWh band — a clear illustration of the steep price sensitivity that emerges once demand clears roughly 8,200 MW. The morning ramp from the overnight trough of approximately 5,270 MW drove prices from negative territory (as low as -$3.02/MWh around 13:25 AEST) through the $56–$79/MWh corridor in under four hours, with the sharpest price response concentrated between 6,400 MW and 7,000 MW on the upward ramp.

Demand is now retreating from the evening peak along a characteristic autumn shoulder profile — mild temperatures at 16.9°C with cloud cover at 100% produce a heating demand score of only 1.1 and negligible cooling load, meaning thermal drivers are weak. Today's forecast maximum of 19.6°C with heavy cloud suppresses any solar contribution to the generation mix (solar is currently producing just 44 MW against black coal's 4,453 MW), so the overnight price trough that develops as demand falls toward the 5,300–5,500 MW range will depend on coal dispatch economics rather than renewable oversupply.

Forward forecasts for the 07:00–08:30 AEST period (04:00–04:30 UTC, which is the overnight trough in NEM trading time) cluster in the $\$0.92–$40.54/MWh range, with the most recent forecasts for the 12:00–13:00 AEST window (corresponding to today's 02:00–03:00 UTC) converging around $37.89–$40.55/MWh — consistent with minimum overnight demand near 5,300 MW. The morning re-ramp on Monday 4 May is forecast to push prices back into the $56–$59/MWh range by 15:00–16:00 AEST (05:00–06:00 UTC), tracking the same demand trajectory that characterised the Saturday morning ramp.

The one demand-side constraint worth flagging is the QNI interconnector restriction (constraint set I-QN_550) related to the Armidale–Sapphire 330 kV outage, which was active through to 02/05 and may still be influencing the northward transfer limit. If NSW demand on Monday morning ramps more aggressively than the mild autumn profile suggests — driven by the Monday industrial load step-up — the constrained QNI capacity reduces the ability to draw imports from Queensland, placing additional marginal price pressure on the $61–$77/MWh band that characterised this morning's business-hours trading.