NEM Overview

Spot prices are sharply divergent across the NEM at 6:30 AEST. Tasmania leads at $88.14/MWh against demand of 1,002 MW, with Queensland close behind at $82.21/MWh on 6,489 MW. NSW sits at $79/MWh serving the largest regional load at 7,325 MW. Victoria and South Australia are both in negative territory — -$2.50/MWh and -$2.74/MWh respectively — driven by generation surplus relative to demand. The VIC1-NSW1 interconnector is binding at its export limit of 937 MW northward, with V-S-MNSP1 also binding at -139 MW into SA, indicating the grid is actively moving excess Victorian output toward higher-priced regions. The $91/MWh spread between SA and QLD in the same half-hour reflects how interconnector constraints and the binding VIC1-NSW1 limit are shaping the price surface this morning.

NEM-wide renewable penetration sits at 21.4% on the gridIQ score, though regional figures are considerably more varied. SA is generating 473 MW of wind with negligible gas output and 399 MW flowing in from Victoria via V-SA, putting local renewable penetration at 92% and carbon intensity at just 0.04 tCO2/MWh. Victoria's 1,808 MW of wind output drives a 58% renewable share at 0.49 tCO2/MWh, despite 1,201 MW of brown coal also running. Tasmania operates at 100% renewable (395 MW hydro, 74 MW wind) with zero carbon intensity. NSW and Queensland present a different picture: black coal accounts for 5,637 MW in NSW and 2,738 MW in QLD, with renewable penetration at 7% and 3% respectively, pushing carbon intensity to 0.82 and 0.85 tCO2/MWh. Grid stress is elevated at 67.3 and overall market conditions score a weak 34, consistent with the binding interconnector positions and regional price volatility.

The most relevant active notice for today is the reclassification of the Penola West – South East 1 132kV and Kincraig – Penola West 1 132kV lines in SA as a credible contingency event due to lightning activity, issued at 03:14 AEST. As of the 03:14 AEST cancellation notice, AEMO considers the lightning risk resolved and has reverted the lines to non-credible contingency status with no constraint sets invoked — watch this if storm activity resumes in the South-East SA corridor today. The MT PASA reserve notice published 7 April identifies no forecast Low Reserve Conditions across the NEM, and AEMO has confirmed no reliability concerns for the near-term outlook. Traders should note a planned Telstra Brisbane indial outage on 16 April (00:00–06:00 AEST) affecting AEMO inbound and outbound call redundancy, with rerouting via Sydney — relevant for any participants reliant on phone-based market access during that window.