regional tas — TAS1

Tasmania's spot price sits at $110.49/MWh as of 16:35 AEST, a step up from the $96–$107/MWh band that dominated overnight and through the morning session. Total demand is 1,129 MW, consistent with the typical late-afternoon ramp as the island moves into the evening peak. The overnight trough bottomed near $99/MWh in the early hours, and prices held in a tight $96–$107/MWh corridor through most of the day before creeping higher from the 15:00 AEST period onward. One transient spike to $165/MWh at 05:35 AEST was short-lived and did not persist, suggesting a brief dispatch constraint rather than a sustained supply event.

The generation mix is almost entirely renewable. Hydro is carrying 670 MW, wind is contributing 33 MW, and gas OCGT sits at zero — confirming Tasmania is running on 100% renewable generation at this interval. Carbon intensity is confirmed at 0 tCO2/MWh with 100% renewable penetration, a condition that has held consistently across the full price history dataset. Weather conditions are cool at 10.8°C with 90% cloud cover, negligible solar potential, and a heating demand index of 7.2 — demand pressure will remain elevated into the evening as residential heating loads build.

Forward predispatch forecasts point to prices settling back into the $99–$107/MWh range through the coming trading intervals, with the most recent forecast run flagging $99.67/MWh as the near-term clearing price. This suggests the current $110.49/MWh print is a short-duration event tied to the demand ramp rather than a structural shift in dispatch costs. Load optimisation windows across the forecast period are rated "good" quality across the board, reflecting the stable, low-carbon profile of Tasmanian supply. There are no active market notices for TAS1 at this time.

Grid stress scores at 76.2 and price stability at 67.5 indicate moderate tightness — not alarming, but traders should watch the Basslink interconnector flow position and hydro dispatch headroom closely as the evening peak develops toward 1,100–1,200 MW. With no gas OCGT in the mix and wind output modest at 33 MW, Hydro Tasmania's flexible dispatch is doing the heavy lifting. Any unexpected interconnector constraint or hydro unit outage would tighten conditions quickly given the limited thermal backup available.