Tasmanian demand drop on 16 August 2025 – part 2
We follow on from A 292MW drop in "Market Demand" in Tasmania, on Saturday 16th August 2025 enlisting this "Part 2" to understand the sequence of events using 4-second data.
We follow on from A 292MW drop in "Market Demand" in Tasmania, on Saturday 16th August 2025 enlisting this "Part 2" to understand the sequence of events using 4-second data.
We assess whether the trip at Yallourn 2 on 26 August 2025 was large enough to drive a frequency disturbance.
It appears it was unit availability used to set the target for dispatch that went awry, rather than unit output.
Among other aspects, a large dip in solar UIGF aligns with the frequency deviation observed on 19th August 2025.
On Tuesday the 19th of August between 11:45 and 12:20 there was a significant frequency deviation on the mainland.
We use the elements available dataset to better understand turbines available at Bulgana in recent months.
Categories with a longer bar left of zero are losing more of their spot energy market revenue to regulation and PFR costs.
A brief note that AEMO's Quarterly Energy Dynamics for Q2 2025 is published.
A brief article to note the continued impact of the Tailem Bend to Tungkillo line outage on FCAS prices.
An agreement restraining how Basslink is bid into the energy market has ended, resulting in changes in bidding and energy flows.
An initial review of payment and cost outcomes of the first 44 days of financial operation of the FPP arrangements.
The incident description in the scheduling error declaration provides us with a glimpse into the underlying cause.
In July 2025 AEMO released the final report into the review of the major power system event of 13 February 2024.
Transgrid's Project Assessment Conclusions Report for System Strength assessed more than 100 individual solutions aimed at helping to meet its system strength obligations under the National Electricity Rules.
As the technologies underpinning the power system change, so too must the approach to supporting system restart.
If we had been in the previous financial year, the old CPT of $1,573,700 would have been tripped.
Spot price volatility occurs in SA on 2 July 2025, yet not to the level that risks exceeding the cumulative price threshold.
Under the new direction proposed, netting off would be applied to allocate IRSR. The proposal is open for feedback until 10 July 2025.
The weather forecasts are alerting to the formation of an East Coast Low this week. The low is expected to sit just off the eastern cost of Australia, adjacent New South Wales.
Another run of energy spot price volatility occurred on Friday 27th June 2025.