Regional Outlook — NSW1: Wednesday 5 August 2026
The NSW spot price sits at $207.51/MWh at 6:30pm AEST, well above the past 24 hours' trading range, which oscillated between negative pricing (-$18.51/MWh at 4:25pm) and highs near $241/MWh during the morning demand ramp. Demand has climbed to 10,056 MW, tracking the evening peak as heating load builds — current temperature is 6.8°C with minimal solar potential (0%) and light wind (10.7 km/h). Prices have been volatile through the day, swinging from sub-$50/MWh overnight troughs to $200-240/MWh bands during both the morning (7-9am) and evening (6-8pm) peaks, consistent with typical winter demand-driven price shape.
Generation mix at the current interval is led by black coal at 6,701 MW, followed by hydro at 1,367 MW and batteries dispatching 756 MW to support the evening peak. Wind contributes 428 MW, gas OCGT a modest 16 MW, and solar has dropped to just 5 MW as the sun sets. Renewable penetration sits at 27.56%, recovering from an afternoon low of 15.3% around 6pm when solar output faded and coal ramped to cover the gap. Carbon intensity is 0.637 tCO2/MWh, down from a peak of 0.745 tCO2/MWh at 6pm but still elevated relative to the overnight low of 0.377 tCO2/MWh recorded around 3-4am when wind and hydro carried a larger share of load.
Predispatch forecasts point to further upside risk overnight: 9pm is forecast at $299.99/MWh, climbing to $332.59/MWh by 10pm before easing sharply to $112.78/MWh at 10:30pm and settling into the $45-90/MWh band through the early morning hours. Prices are then forecast to climb again through tomorrow's morning peak, reaching $299.99/MWh by 1pm and $291.90/MWh at 1:30pm on 6 August, reflecting a second demand-driven price spike. Low-price windows for flexible load are concentrated between 1:30am and 4:30am AEST, with average prices near $53-67/MWh and zero carbon intensity recorded in those load-shifting windows.
On notices, AEMO has an active inter-regional transfer constraint (CA_SYDS_59839EB2) affecting the NSW1-QLD1 interconnector, invoked from 8:15am on 4 August "until further notice" to manage power system security in the NSW region — this may affect interconnector flows and should be monitored for dispatch impacts. Routine price confirmation notices for several 5-minute intervals this afternoon show no manifestly incorrect inputs identified, so no data quality concerns. No credible contingency events are currently active in NSW1, following the cancellation of the Bayswater-Mt Piper lightning-related reclassification on 3 August.