Markets were active across both sides of the country through Wednesday night and into Thursday morning. Queensland led the NEM on price, averaging $101/MWh with an intraday peak of $233/MWh, while Tasmania followed at $105/MWh average — both reflecting evening demand ramps that started around 17:00–18:00 AEST. South Australia recorded a wide 24-hour range, from $8.50/MWh during a wind-heavy afternoon through to $272.81/MWh at the peak of the evening ramp, before settling back to $58.30/MWh by 06:35 AEST. Watch interconnector flows today: two of the six active NEM interconnectors are binding at export limits, widening regional spreads through the morning.
Tasmania had two notable events on 14 May. First, a major binding network constraint — T_BLINK_TV_NGZ — was active during 06:40–07:05 AEST, registering an exceptionally high shadow price of $7,308,000. Despite the severity of that constraint, spot prices in TAS1 held a narrow band of $106–$107/MWh, suggesting the constraint did not translate directly into a price shock. Generation at the time was dominated by hydro (~1,040–1,160 MW) alongside 119–142 MW of wind. Separately, during the 17:40–18:00 AEST window, Tasmania achieved 100% renewable penetration, with hydro (~757–778 MW) and wind (~170–181 MW) covering all local demand at stable prices of $88.16–$88.79/MWh. Energy managers with Tasmanian exposure should note the constraint — shadow prices of that magnitude can signal transmission headroom limits worth monitoring.