AEMO issue market notice regarding a ‘High Impact Outage’ in NSW this Sunday 20th July 2025
AEMO has flagged a 'High Impact Outage' on the Dapto–Kangaroo Valley line this Sunday, warning of reduced VIC–NSW transfer capacity.
All Posts
To what extent does the Capacity Investment Scheme cover curtailment risk, and how to interpret its ‘force majeure’ terms?
An open question to our readers.
Transgrid’s Project Assessment Conclusions Report for System Strength released on Monday 14th July 2025
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.
The trend continues: a review of Q2 2025 spot prices
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.
Review of the System Restart Standard 2025 – Technical advice provided
As the technologies underpinning the power system change, so too must the approach to supporting system restart.
AEMO releases the 2025 Enhanced Locational Information (ELI) report on Wednesday 9th July 2025
A short post to note that the AEMO has released its 2025 ELI, the second such edition of this annual report.
A look at forecasts for SA this Wednesday evening 9th July 2025, where forecast LOR2 conditions are appearing
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.
Not all renewable projects are created equal: Why approval times vary dramatically across Australia
Alice Matthews examines how approval times for renewables vary widely by state and technology — with NSW wind projects facing the longest delays.
Volatile price period runs over 5 hours on 2 July 2025 in SA
If we had been in the previous financial year, the old CPT of $1,573,700 would have been tripped.
Evening spot prices less volatile than anticipated in SA on July 2, 2025
Spot price volatility occurs in SA on 2 July 2025, yet not to the level that risks exceeding the cumulative price threshold.
Guest Authored Posts
The increasingly stochastic and volatile NEM
Oliver Nunn from Endgame Economics argues that we must begin to think about the distribution of prices in the NEM as a function of weather.
Not all renewable projects are created equal: Why approval times vary dramatically across Australia
Alice Matthews examines how approval times for renewables vary widely by state and technology — with NSW wind projects facing the longest delays.
Detailed Analysis
GenInsights Quarterly Update for Q2 2023 released
A quick note to mark the the release of GenInsights Quarterly Update for Q2 2023 last week.
What inputs and processes determine a semi-scheduled unit’s availability
It is indispensable to understand how the semi-scheduled unit availability gets produced to optimally manage the critical inputs and comprehend dispatch outcomes. This article explains the key inputs and processes, focusing on the dispatch...
Another research paper into solar and wind droughts in Australia
A quick note at another research paper (focused on an area of interest to us) that's crossed our field of vision.
Digging further into ‘Aggregate Scheduled Target’, to understand what Dispatchable Capacity is actually required
In conjunction with the analysis done to complete GenInsights Quarterly Update for Q1 2023 (released today), here's 14 years of daily data of 'Aggregate Scheduled Target' that might help to illustrate the aggregate requirement...
GenInsights Quarterly Update for Q1 2023 released
A quick note on Wednesday 31st May 2023 to mark the release of GenInsights Quarterly Update for Q1 2023.
Case Study of 17:05 on 27th October 2022… Part 4: the geographical spread of +861MW AggROT
In the fourth instalment of this ongoing case study, Dan Lee maps the locations and contributions of the semi-scheduled units that contributed to the +861MW Aggregate Raw Off-Target that occurred on the afternoon of...
Case Study of 17:05 on 27th October 2022 … part 3 … (+861MW AggROT – source of AvailGen)
In Part 3 of this Case Study, we look at the source of the Dispatch Interval Availability forecasts for these units at 17:05 on 27th October 2022 (i.e. Self-Forecast or something else, incl AWEFS/ASEFS).
Why capacity factor is an increasingly simplistic way to compare solar farm performance
Dan Lee explains why capacity factor could be becoming an increasingly less useful measure for comparing how different solar farms are performing and begins an exploration into some of the factors in play when...