This short article looks at intraday 2-hour price spreads across the NEM over this past summer, showing that volatility thinned out in most regions compared with recent summers, with a major SA price event on the 26th of January proving an outlier.
This latest instalment of our annual review into solar and wind farm curtailment across the NEM, looks at outcomes in 2025 and highlights increasingly divergent results by region and by asset as network constraints, pricing dynamics and seasonal weather conditions interact.
In an initial post-mortem of last night’s sustained period of high prices in SA, we take an initial look at how the region's utility-scale battery fleet responded, showing how aggregate stored energy was rapidly drawn down and how availability across the fleet tightened.
Overnight, Adelaide recorded its hottest night on record according to ABC News, with minimum temperatures staying above 34°C, resulting in flashes of price spikes in the region early this morning.
Despite the public holiday, extreme heat across South Australia has pushed evening demand above forecasts, contributing to a prolonged period of elevated spot prices near the market cap.
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.
For nearly a decade, we’ve published annual reviews of Q2 prices to highlight the growing volatility during this period. Here’s our latest edition, examining how Q2 2025 compared.
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.
After an extended burst of high prices last night, and a short burst this morning, the cumulative price in SA has moved closer to CPT territory.
Cold winter conditions in NSW have pushed market demand in the region above 13GW this evening. Meanwhile, high prices have stuck around in SA.
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.
Several isolated price spikes have occurred in SA late this afternoon.
A quick look at our forecast convergence widget, with the AEMO currently forecasting an LOR2 in SA tomorrow evening.
Stratospheric warming over Antarctica may have helped bring about the extended period of strong winds in the southern NEM regions.
A short examination of some of the over-arching factors at play yesterday evening - where prices spiked above $3,000/MWh in all five regions simultaneously.
Already this evening we’ve seen a rare occurrence of price spikes in all five NEM regions simultaneously.
The South Australian region is seeing a run of high prices, starting just after 6pm this evening.