A catalogue of articles pertaining to eventful days in 2025
The Waratah Super Battery System Integrity Protection Scheme (SIPS) was enabled by TransGrid at last Friday 1st August 2025. This prompts this look back on operations thus far.
Following a tip from a WattClarity reader, we take a quick look at a forced outage for both units at the Reece (hydro) Power Station in Tasmania ... possibly related to an apparent fire...
A brief article to note the continued impact of the Tailem Bend to Tungkillo line outage on FCAS prices.
A belated post to note a new all-time record for wind production was broken on Friday evening.
An agreement restraining how Basslink is bid into the energy market has ended, resulting in changes in bidding and energy flows.
A short post to note some price volatility for the 'Lower 1 Sec' contingency FCAS commodity in SA today, with prices flickering between the FCAS price floor and the market price cap.
A quick view of our congestion map where constraints on the Heywood interconnector may elevate risk of high energy and FCAS prices this week.
AEMO has flagged a 'High Impact Outage' on the Dapto–Kangaroo Valley line this Sunday, warning of reduced VIC–NSW transfer capacity.
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.
A quick look at demand, wind and solar forecasts, along with the constraint invocation schedule in SA for this coming Wednesday, where the AEMO currently have an extended forecast LOR2 condition projected.
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.
Wild storms over night have impacted parts of the Ausgrid, Endeavour and Essential Energy distribution networks in NSW.
Cold winter conditions in NSW have pushed market demand in the region above 13GW this evening. Meanwhile, high prices have stuck around in SA.
Carl Daley examines the underlying conditions and outcomes that occurred last Thursday evening, the 26th of June.
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.
We've already noted the ‘New all-time record for NEM-wide wind, on Monday 23rd June 2025’. But how low did wind production drop, on Thursday 26th June 2025?
Considering that it was 16:45 (NEM time) when volatility started it’s notable that we’re into our 4th hour of volatility now on Thursday evening 26th June 2025.
A further update on the volatility and high demand seen on Thursday evening 26th June 2025.