Early morning was the focal point for volatility overnight, with SA1 spiking to $681/MWh around 06:05 AEST and VIC1 touching $314/MWh at 06:45 AEST — both events resolving within 15 minutes as supply conditions normalised. QLD1 averaged a comparatively subdued $94/MWh with overnight demand troughing near 4,330 MW before climbing back toward 6,973 MW by 06:30 AEST. SA1 carried the highest 24h average at $255/MWh; watch morning peaks in VIC1 and SA1 as winter demand builds through the day — VIC1 demand rose ~570 MW in a single hour this morning.
Tasmania delivered the standout event of the past 24 hours. TAS1 ran at 100% renewable penetration across the settlement period, with hydro contributing approximately 2,500 MW and wind around 20 MW — RRPs settling in the $79–$90/MWh range. Against that backdrop, binding constraint T_BLINK_TV_NGZ activated repeatedly across multiple intervals, carrying an extraordinary shadow price of $7.308 million/MWh. Despite this, regional prices remained relatively contained; the constraint reflects network topology limits rather than generation shortage. The 24h average settled at $91/MWh, TAS1's lowest across the NEM today.
WA1 recorded a 24h average of $103/MWh with an intraday peak of $226/MWh — a measured outcome relative to the NEM's eastern volatility. No significant constraint or supply events have been flagged for the WEM in this reporting period. Conditions appear broadly stable; the day-ahead outlook for WA1 is quiet.
LOR: STPASA shows no Lack of Reserve conditions forecast across the NEM in the next 48 hours. Gas: Adelaide STTM eased marginally to $11.80/GJ (from $11.99/GJ yesterday); Sydney STTM rose to $10.