The NEM traded broadly within range overnight, with brief negative-price episodes in both QLD1 (−$2.16/MWh, 23:10–23:15 AEST) and NSW1 (−$1.46/MWh, 04:20–04:25 AEST) reflecting low overnight demand against available supply. SA1 recorded the sharpest intraday move, spiking to $327/MWh around 14:00 AEST before easing to $48/MWh by early Saturday morning. As of 06:30 AEST, interconnector flows are moderate with no binding constraints active on the NEM backbone, though several market notices remain in place across the Victorian network. Weekend demand profiles are in play — watch SA1 and TAS1 for price stickiness given current generation mixes.
Tasmania is the standout region over the past 24 hours on two counts. First, a major binding constraint — T_BLINK_TV_NGZ (Blinking Point to Tasmanian Valley) — activated during the morning peak with a shadow price of $7.308 million, pushing regional prices to $109.52/MWh at 07:00 AEST before moderating. Second, TAS1 recorded 100% renewable penetration during the evening, with hydro (925 MW) and wind (208 MW) covering the entire dispatch stack and gas peakers remaining offline. The 24-hour average settled at $101/MWh — the highest average among NEM regions — reflecting that constraint premium rather than any shortage of generation.
Western Australia's wholesale market posted a 24-hour average of $102/MWh with a peak of $180/MWh — the highest average price across all six regions covered today. No specific dispatch events have been flagged in available data for this period. The elevated average warrants monitoring heading into the weekend, particularly for energy managers with exposure to time-of-use or spot-