The NEM tracked a classic autumn Sunday profile overnight, with demand troughs across all regions before a morning ramp. Queensland led regional pricing at an average of $87/MWh, peaking at $137/MWh, while South Australia recorded the sharpest intraday spike — reaching $198/MWh during an evening window before easing back. As of the 06:30 AEST snapshot, Queensland sits at $111/MWh with demand at 6,212 MW, and Victoria is climbing through $89/MWh at 5,346 MW. Watch for continued morning demand build across the eastern seaboard; Queensland and NSW spreads over Victoria are currently supporting northward interconnector flows.
Tasmania is the standout region today. During the evening peak, TAS1 achieved 100% renewable generation — hydro supplying 1,202 MW and wind contributing the balance — with carbon intensity sitting at 0.00 tCO₂/MWh. Spot prices remained broadly stable near $103/MWh but briefly spiked to $149/MWh at 20:05. Separately, a major binding constraint (T_BLINK_TV_NGZ) registered a shadow price of $7.308 million, signalling severe transmission congestion between Blink and Tassie Valley. Despite the extraordinary shadow price, regional spot pricing remained moderate at $102–$118/MWh, indicating the constraint was binding on supply dispatch rather than directly setting the marginal price.
Western Australia recorded the highest 24-hour average across all six regions at $106/MWh, with an intraday peak of $180/MWh. No significant events were flagged in the available data, but the elevated average is worth noting for WEM participants and C&I load managers tracking balancing costs into the new week.