“The energy price in New South Wales increased to the market cap price of $10,000/MWh at trading intervals (TIs) ending 13:00hrs, 13:30hrs and 15:00hrs on Friday 31 October 2008. The Queensland region saw energy prices rise to a maximum of $3,618.51/MWh at TI 14:30hrs. Mainland Frequency Control Ancillary Services (FCAS) prices reached $105.13/MWh at 14:50hrs. The Tasmanian region saw a negative energy price of -$0.43/MWh for the trading interval ending 15:30hrs. Energy prices in other regions were not materially affected.”
A Market Event Report has been published on the NEMMCO AEMO website at
NEMMCO says that a system incident report covering the reliability of the power system during this event will be published separately (and we’ll link to it, when we see it).
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time.
As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.
Spot prices in South Australia have been seen to be higher in the month of April than in the prior months, which is somewhat counter-intuitive. Prices also spiked this evening on a number of occasions above $500/MWh – here’s some of the reasons why.
Both the QNI and the Heywood interconnectors tripped around the same time on Saturday 25th August 2018 (not apparent at this time which one was first, and why), leading to both QLD and SA regions being separately islanded from the rest of the mainland NEM. This also contributed to over 1,000MW of load shedding in NSW and VIC, and presumably some frequency excursions in QLD and SA.
We are only in the second week of summer 2015-16, and demand in Queensland has already begun to heat up, hitting 8507MW at 3:05pm this afternoon after another hot and humid day across the sunshine state.
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