Commodity Demand — TAS1 — Thursday 7 May 2026

Tasmania's spot price sits at $88.24/MWh with demand at 1,158.63 MW as of 06:30 AEST, holding in the lower pricing band that has prevailed since demand retreated from its overnight peak. The day's demand arc is already well-defined in the data: from a morning peak of 1,366 MW at 18:55 AEST, demand fell steadily through the afternoon trough — bottoming near 965 MW around 01:00–02:00 AEST — before climbing through the evening ramp. That demand swing of roughly 400 MW corresponds directly to a price shift between two distinct bands: ~$74–77/MWh when demand sits below approximately 980 MW, and ~$88–97/MWh when demand exceeds the ~1,150 MW threshold. The pricing structure is notably step-like rather than continuous, suggesting Tasmania's marginal cost stack has identifiable breakpoints where additional generation capacity is called on.

Today's forecast demand trajectory shapes a clear price outlook for the remainder of Friday 8 May. The morning ramp is already underway, with demand at 1,158 MW and pricing locked at $88.24/MWh. Forecasts for the 07:30 AEST period (21:30 UTC) point to prices stepping up to the $95–97/MWh range, consistent with the pattern seen when demand climbs toward the 1,280–1,366 MW range that characterised this morning's peak. The 07:00–11:00 AEST window is where pricing pressure concentrates, with multiple forward forecasts clustering at $96–97/MWh. Temperature at 9.3°C with 97% cloud cover and a heating demand index of 8.7 confirms space heating load is active, and today's forecast maximum of only 13.4°C means heating demand persists through the business day — sustaining demand in the upper band rather than offering the afternoon relief seen on warmer autumn days.

The midday-to-early-afternoon period is where today's demand profile diverges most from the morning. Based on the intraday pattern in the history data, demand characteristically softens toward 980–1,050 MW between roughly 23:00–01:00 UTC (09:00–11:00 AEST), which corresponds to the $88/MWh level or below. The evening ramp from approximately 08:00 AEST onward is the key risk window: the data shows demand climbing from ~975 MW at 03:00 AEST to 1,003 MW by 04:00 AEST, with prices responding quickly once the 1,000 MW threshold is crossed. Forward forecasts for 16:30–20:30 AEST (06:30–10:30 UTC Friday) hold at $96–97/MWh, consistent with a demand profile that stays above 1,250 MW through the working-day peak. One active market notice warrants attention: the unplanned outage of the Armidale No.3 330/132 kV transformer in NSW, which invoked constraint set N-AR_TX affecting the N-Q-MNSP1 interconnector. While this is a NSW network event, any constraint on north–south NEM flows can influence Basslink's commercial optimisation and Tasmania's export positioning through the day.