Commodity Demand — TAS1: Tuesday 19 May 2026

Tasmania's spot price sits at $96.18/MWh with total demand at 1,100 MW as of 06:30 AEST, tracking up from a trough of around 905 MW in the early hours. The overnight demand profile is textbook winter: demand peaked near 1,266 MW around 07:40–08:10 AEST during the morning residential and commercial ramp, with spot prices responding by pushing repeatedly to $110–$125/MWh across multiple dispatch intervals in that window. Outside those pressure points, price has been anchored tightly at $96.18–$96.22/MWh — a floor that reflects the marginal cost of Tasmania's dispatchable generation stack. The brief spike to $150.24/MWh at 17:15 AEST and isolated prints above $117/MWh are consistent with short-duration supply tightness rather than sustained demand-driven pressure, and all resolved within one or two intervals.

Demand is currently rising — up roughly 195 MW from the overnight base over the past two hours — consistent with the morning heating load building into a mid-winter Wednesday. At 7.4°C with a heating demand index of 10.6, residential space heating is the primary driver. Generation at this interval is 915 MW hydro and 312 MW wind, with gas OCGT at zero, indicating the current demand level is being met comfortably within the existing dispatch stack. The price-demand relationship across today's data shows the $110/MWh threshold activates when demand presses into and above 1,150–1,200 MW, particularly during rapid ramp periods — the morning peak saw demand climb from ~1,090 MW to ~1,215 MW in under 90 minutes, which is where the sustained $110/MWh pricing cluster appeared.

Forward forecasts for today are unanimous at $96.18/MWh through the next several trading intervals, signalling the market does not anticipate demand breaching the threshold that triggers higher-priced marginal plant in the near term. The daily outlook — max temperature of 14.8°C, moderate cloud at 53%, and low wind potential of 1.4 — points to sustained heating demand throughout the day with a likely evening peak in the 17:00–20:00 AEST window. Today's demand trajectory follows the pattern already established: expect another test of the 1,150–1,200 MW zone during the evening residential peak, which is where price pressure above the $96.18/MWh base is most likely to re-emerge. No TAS1-specific reserve or system security notices are active; the MT PASA published 19 May identifies no Low Reserve Conditions nationally.