Commodity Demand — NSW1 — Wednesday 29 April 2026
NSW sits at $76.99/MWh with demand at 7,651 MW at 06:35 AEST — a moderate early-morning level that reflects the pre-dawn-to-morning-ramp transition. The price-demand relationship across today's trading history is clear: when demand peaked near 9,021 MW at 17:55 AEST, prices held in the $76–92/MWh band, while the overnight trough around 5,440–5,500 MW saw spot prices collapse to near zero and briefly negative, bottoming at $0.97/MWh around 12:50 AEST. That overnight low-demand window drove the sharpest price compression, with prices routinely clearing below $15/MWh between 11:30 AEST and 13:30 AEST.
The day's demand arc followed a textbook autumn profile: a soft overnight floor, a morning ramp from around 5,800 MW at 11:30 AEST to a peak of 9,021 MW by 17:55 AEST, then a post-peak retreat. Current demand at 7,651 MW is rebuilding from the 6,376 MW trough recorded around 04:00 AEST (18:00 UTC), consistent with the early-morning residential and commercial ramp that typically precedes today's business-day peak. Forecast pricing for the next two half-hour intervals sits at $79/MWh, signalling the market expects demand to keep climbing and price to firm modestly as the morning peak develops.
The QNI interconnector constraint (notice 144013, constraint set I-QN_550 invoked at 02:40 AEST) remains active due to the Armidale–Sapphire 330 kV outage, scheduled until 02 May. This caps NSW's ability to draw from Queensland during peak periods, placing additional reliance on local generation to meet demand — a factor that tightens the supply stack when demand approaches 8,500–9,000 MW and pushes prices toward the $77–92/MWh range seen during this morning's prior peak. With today's max temperature forecast at 22.5°C and low wind potential (0.7 average), heating demand is modest and thermal generation is carrying the bulk of load at 4,950 MW from black coal and 248 MW combined from wind and solar. Expect prices to firm into the $76–90/MWh range as demand climbs through the 8,000–9,000 MW band during the business-day peak, consistent with the pattern already established across today's dispatch intervals.