NEM Overview

South Australia leads the NEM on price at $138/MWh, a $42/MWh premium over Queensland's $95.82/MWh — the widest regional spread this morning. NSW sits at $105.79/MWh on demand of 8,215 MW, Victoria at $108.13/MWh on 5,534 MW, and Tasmania at $96.20/MWh. The SA premium reflects tight local supply: gas is carrying the load with 174 MW of OCGT and 257 MW of CCGT online, while wind contributes just 188 MW. The V-SA interconnector is binding at its export limit of 531.7 MW, meaning Victoria is already pushing maximum capacity into SA and cannot provide further relief — a structural floor under that price.

NEM-wide renewable penetration sits at a low 17.2%. The picture is heavily region-dependent: Tasmania is running 100% renewable on 366 MW of hydro and 58 MW of wind, while NSW and Queensland are near-thermal at just 2.4% and 2.9% renewable respectively. Black coal dominates both states — 6,103 MW in NSW and 2,922 MW in Queensland — driving carbon intensity to 0.859 tCO2/MWh and 0.855 tCO2/MWh. Victoria's 973 MW of wind gives it 37% renewable penetration, though 1,559 MW of brown coal keeps its intensity at 0.747 tCO2/MWh. Solar is effectively zero across all regions, consistent with pre-dawn conditions; the data timestamp is 06:30 AEST.

Tasmania is the standout operational concern this morning. Three separate contingency reclassifications are active due to lightning activity, covering the Farrell–Reece 220 kV lines, the Farrell–John Butters and Farrell–Rosebery–Newton–Queenstown lines, and the Burnie–Port Latta–Smithton 110 kV double circuit. The Farrell–Reece reclassification has invoked the F-T-FARE_N-2 constraint set, which places a limit on the Basslink interconnector (T-V-MNSP1). Basslink is currently at zero flow, so the binding constraint is not causing an active price impact, but any demand increase or generation trip in Tasmania elevates islanding risk while these contingencies remain active.

AEMO is also running an extensive price review process, with more than 30 intervals from approximately 01:45 to 06:25 AEST flagged as subject to review under NEM Rule 3.9.2B for manifestly incorrect inputs. Two intervals — 03:10 and 05:40 — have been confirmed unchanged. The volume of open reviews is unusually high and traders should treat early-morning price signals with caution until AEMO closes out the remaining investigations. The NSW1–QLD1 interconnector is binding at its import limit of −468 MW, confirming Queensland is exporting at maximum capacity into NSW despite having the lowest price in the mainland NEM.