Commodity Demand — TAS1: Friday 12 June 2026

Tasmania's spot price sits at $71.69/MWh with demand at 910.56 MW as of 06:30 AEST — a striking contrast to the evening peak that saw demand reach 1,428 MW alongside prices nudging $89.75/MWh. The intervening overnight period tells the real story: as demand collapsed through the mid-afternoon AEST window (UTC afternoon), prices repeatedly printed at -$15/MWh, with demand troughing around 732–875 MW between roughly 02:10–03:25 AEST. That sustained negative pricing reflects generation output exceeding local demand at low-load conditions, with Basslink interconnector flows the key balancing mechanism. The current 910 MW reading sits in a recovery phase as Saturday morning load builds from the overnight trough.

The demand trajectory across today's history shows a clear and consistent price sensitivity relationship: each demand bracket carries a rough pricing tier. Intervals below 900 MW produced negative or near-zero prices; 900–1,100 MW anchored prices in the $65–$75/MWh range; 1,100–1,300 MW pushed prices to $75–$90/MWh; and the single interval where demand hit 1,263 MW coincided with a $149.42/MWh spike at 06:20 AEST — the session's pricing outlier, likely driven by a dispatch constraint or interconnector limit rather than pure demand pressure alone. Price sensitivity is therefore non-linear and becomes acute above the 1,250 MW threshold.

The forecast profile points to prices easing from the current $71.69/MWh to $62.93/MWh by 07:00 AEST before stabilising in the $75–$77.95/MWh band through the 08:00–10:00 AEST window — consistent with typical Saturday morning demand build without the commercial and industrial load profile of a weekday. Afternoon and evening forecasts drop back sharply to $60.10/MWh from 00:30 AEST (14:30 UTC) and hold there through to at least 04:00 AEST (18:00 UTC), signalling NEMDE anticipates another low-demand afternoon period analogous to today's negative pricing window. With heating demand a modest 3.6 units at 14.4°C and wind output tracking at 389 MW alongside 594 MW of hydro, the generation stack is comfortable at current load levels.

Traders should note that AEMO has two intervals under active Manifestly Incorrect Input review for the 03:00 and 03:05 AEST periods — prices for those intervals remain subject to revision. The broader price structure today is driven primarily by demand-level positioning relative to interconnector capability rather than fuel costs, making Basslink flow direction and capacity the critical variable for any position taken across the afternoon negative-price window.