Regional Outlook — NSW1 — Wednesday 29 April 2026

The NSW spot price sits at $79/MWh with total demand at 7,650 MW as of 06:30 AEST. That current price is notably firmer than the deep trough seen in the early hours, where prices repeatedly traded near zero or briefly negative between roughly 13:30 and 15:30 AEST — a pattern consistent with midday solar saturation on a mild autumn day. The price path over the past 24 hours traces a textbook diurnal arc: sub-$25/MWh through the overnight valley, a sharp morning ramp to a peak above $90/MWh around 17:55–18:00 AEST, then a gradual step-down through the afternoon and a partial evening recovery to the current $79/MWh level. The 24-hour average sits in the mid-$50s/MWh range, making the current price materially above that mean as demand builds into the evening.

The generation mix is heavily weighted to black coal, which is producing 4,950 MW — approximately 95% of the metered output in the current dispatch interval. Wind is contributing 210 MW and solar 38 MW, giving a combined renewable share of just 4.78%. Hydro, gas CCGT, and gas OCGT are all at zero dispatch. That renewable penetration is well below the 13–14% peaks recorded mid-morning when solar output was higher, and the low wind resource today (forecast wind potential of just 0.4 out of 1.0) means wind is providing minimal support. Carbon intensity sits at 0.8379 tCO2/MWh, at the higher end of today's range; the intraday low of approximately 0.759 tCO2/MWh was recorded around 08:10–08:50 AEST when the renewable share was strongest.

Predispatch forecasts show the price holding at $79/MWh for the 07:00 AEST half-hour, with the 07:30 AEST interval forecast at $78.42/MWh — essentially flat. Multiple forecast runs across the day converged tightly on the $77–$79/MWh band for the evening, suggesting the dispatch stack is well-telegraphed with no surprise scarcity signals expected tonight. Weather conditions support this view: today's maximum of 22.5°C with 15% cloud cover and average solar potential of 19.2 are mild enough to keep demand moderate, though the lack of wind (average potential 0.7) means coal will remain the dominant source throughout. Load-shifting opportunities open up significantly from 08:00 AEST onward into tomorrow's pre-dawn window, with model-indicated prices falling toward the low-to-mid single digits and briefly negative across multiple intervals between roughly 09:00 and 12:30 AEST.

The key active market notice for NSW traders is the QNI interconnector restriction (Notice 144013), where constraint set I-QN_550 is invoked on the NSW1–QLD1 interconnector due to the outage of the Armidale–Sapphire 8E 330 kV line. That outage runs until 02 May 2026 at 17:00 AEST, reducing northbound transfer capability and tightening the effective supply cushion for NSW during peak periods. A non-conformance event affecting unit VP6 in NSW on 28 April (Notice 144009, −159 MW) has been declared but