Run of evening volatility starts early, on Thursday 26th June 2025
Here’s a NEMwatch snapshot at 16:50 (NEM time) on Thursday 26th June 2025 with the run of volatility in the southern regions already well underway.
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AER approves application for Basslink to be converted into a regulated transmission service
After rejecting an earlier proposal, the AER has today approved the conversion of Basslink into a regulated transmission service.
Cold weather drives electricity ‘Market Demand’ higher (and higher than AEMO’s earlier forecasts)
I thought it would be worth adding a couple snapshots from the ‘Forecast Convergence’ widget in ez2view looking at ‘Market Demand’ as at various dispatch intervals on Thursday 26th June 2025 looking backwards ~7...
Morning volatility in the southern regions – Thursday 26th June 2025
Here’s a snapshot from NEMwatch at 07:25 to record some morning volatility on Thursday 26th June 2025
Opaque Congestion and Hidden Curtailment … such as on Tue 24th June 2024 with the ‘N-DPWG_63_X5’ constraint set invoked
It was now just over 5 years ago when Marcelle wrote ‘Not as simple as it appears – estimating curtailment of renewable generation’. This week's invocation of the 'N-DPWG_63_X5' constraint set provides a great...
Wholesale Demand Response Capacity in June 2025
WDR capacity has increased by 23 MW since our last look, and much of it happened recently.
Another look at conditions in South Australia next week as a forecast LOR3 now appears for Wednesday
An updated look at conditions in SA early next week, where a forecast LOR3 is now appearing for next Wednesday. We also look at the invocation schedule for constraint sets within the region.
Frequency change associated with coal generation events
System frequency shows improved resilience to sudden coal generation events since 2020.
Loy Yang A2 apparent trip from 443MW on Wednesday 25th June 2025
A very short midday article on Wednesday 25th June 2025 noting this apparent trip of LYA2 unit from 443MW just prior to 11:31 (NEM time).
ENTSO-E is also investigating the 28th April 2025 blackout on the Iberian Peninsula
For those interested in ‘what happened, why and what should be done about it’ with respect to the 28th April 2025 blackout on the Iberian Peninsula, ENTSO-E is also investigating.
Guest Authored Posts
Modelling prices in a post-coal NEM: When batteries dominate the market
Paul Bandarian and David Leitch from ITK Services share modelling results for a post-coal NEM, arguing today’s electricity prices can be maintained if batteries become the dominant price-forming technology and solar is structurally supported.
Runway cost allocation – ready for liftoff?
Allan O'Neil unpacks a proposal under consideration by the AEMC to apply “runway” cost allocation to contingency FCAS, explaining how this could materially change who pays for frequency security in the NEM.
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