NEM Overview

Spot prices are contained across most of the NEM, with the mainland sitting in a tight $79–$84/MWh band at the 06:30 AEST interval. Tasmania is the clear outlier at $106.02/MWh against total demand of 1,108 MW — the Basslink (T-V-MNSP1) is recording zero flow at this hour, leaving Tasmania fully isolated from Victoria and relying entirely on its own hydro (499.61 MW) and wind (50.04 MW) to meet load. That supply-demand tightness explains the premium. On the mainland, NSW leads demand at 6,640 MW priced at $83.55/MWh, with Queensland close behind at 6,456 MW and $79.92/MWh. The NSW–QLD interconnector is binding at its import limit of -317 MW, meaning power is flowing south into NSW at the constraint ceiling — a factor supporting the modest NSW premium over Queensland.

NEM-wide renewable penetration sits at 36.1% on the gridIQ score, though the regional picture is highly uneven at this early-morning interval with zero solar across all regions. South Australia is generating 498 MW of wind against demand of just 1,284 MW, putting its renewable share at 71.9% and carbon intensity at 0.1564 tCO2/MWh — the lowest on the mainland by a wide margin. Tasmania is running at 100% renewable and 0 tCO2/MWh on hydro and wind alone. At the other end, Queensland's renewable share is just 3.4% with 2,454 MW of black coal carrying the bulk of its 6,456 MW load and carbon intensity at 0.8501 tCO2/MWh. Victoria sits at 1.125 tCO2/MWh — the highest in the NEM — with 2,176 MW of brown coal and 110 MW of gas OCGT making up the bulk of its 5,031 MW supply, wind contributing only 137 MW.

The most notable operational flag this morning is the volume of active Manifestly Incorrect Inputs reviews across the 00:00–05:30 AEST window — over 30 consecutive intervals have been flagged under NER Clause 3.9.2B, though the two intervals so far confirmed (04:15 and 05:10) have come back with prices unchanged. Traders should note that a number of intervals from midnight onwards remain subject to review and have not yet been confirmed; any repricing would affect settlement. The grid stress score of 87.1 warrants monitoring, particularly given the Basslink outage isolating Tasmania and the binding NSW–QLD interconnector. As solar ramps from mid-morning, SA's wind-heavy mix positions it to maintain low-price and low-intensity conditions, while the cool autumn temperatures across all regions (10–15°C) are suppressing any heat-driven demand spike on today's outlook.