Voluntary Scheduled Resources Guidelines published today, Thursday 27th Nov 2025
Guidelines have been developed to assist VSR Providers understand and assess the requirements for participation in central dispatch.
All Posts
One example of why some batteries were charging during price spikes over the past couple of days in NSW
This article looks at the N::N_CNLT_2 transient stability constraint on Tuesday to give an example of why some NSW batteries ended up charging through Tuesday’s price spike.
A look at mainland grid frequency yesterday, November 26th, 2025
A quick look at the data from our frequency logger yesterday, showing the changes in frequency during the period of market volatility.
AEMC release the ‘2026 Reliability Standard and Setting Review’ draft report on Thursday 27th Nov 2025
The AEMC has published its draft 2026 Reliability Standard and Settings Review, setting out the Panel’s preliminary views on the future reliability standard and how the market should clear during minimum system load events.
Unpacking some of the drivers of volatility in NSW today, on Wednesday 26th Nov 2025
Today in NSW we saw large price spreads, material network curtailment, wild swings in demand, and several other factors unfold. This article summarises some of the high-level drivers of today's events.
Daytime price volatility in NSW on November 26th, 2025
A quick snapshot of regional prices, where the spot price in NSW hit the MPC at 11:00am NEM time.
Record intra-day price spread as the NSW spot price goes near the market floor, after hitting the market cap on Tuesday 25th Nov 2025
So far today we've seen a $21,019.65/MWh intra-day price spread in NSW, underscoring just how far prices can swing in the NEM.
Price spikes up to the MPC in NSW, seemingly out of the blue, during the middle of Tuesday, 25th Nov 2025
A brief but unexpected spike to the market cap in NSW in middle of today has prompted a closer look at the rapid demand jump, counter-price flows and binding constraints that shaped the outcome.
Energex report nearly 100,000 customers still without power this morning in South-East Queensland after last night’s storms
A fast-moving thunderstorm system swept through Brisbane and surrounding regions on Monday afternoon, bringing destructive winds, giant hail and more than 800,000 lightning strikes.
Further thoughts (and questions) about Waratah BESS, two weeks after the snowball started to roll…
Identifying 5 distinct time periods (from 26th Sept 2025 to 21st Nov 2025) with Waratah BESS, we take ez2view and some external references to try to piece together sequence of events in 3 of...
Guest Authored Posts
24 GW in 24 months, a race against time for the NEM
Following his presentation at All-Energy in Melbourne last week, David Dixon reports on the state of the NEM's ambition to reach 82% renewables by 2030.
The implications of the Solar Sharer Offer (SSO) and Default Market Offer (DMO) review outcome on energy sellers
In this guest-authored article, Connor James explains the upcoming changes to the DMO, including the much publicised Solar Sharer Offer (SSO), and potential implications for energy sellers in NSW, SEQ, and SA.
Detailed Analysis
One example of why some batteries were charging during price spikes over the past couple of days in NSW
This article looks at the N::N_CNLT_2 transient stability constraint on Tuesday to give an example of why some NSW batteries ended up charging through Tuesday’s price spike.
Extending the tabulated history of significant (Frequency and/or AggROT) events into 2025 Q3 and 2025 Q4
An update of earlier article (from 8th Sept 2025) comparing Frequency Excursions with instances of large AggROT across Semi-Scheduled units - for 2025 Q3 and 2025 Q4 (ytd).
A case study into reserve uncertainty during peak demand events in the NEM
A summary of a recent academic case study looking into the events of January 22, 2024 in the QLD region, revealing how DER dynamics, weather variability and forecast limitations are amplifying operational challenges.
Are CIS-ters doin’ it for themselves? Part 4: Policy lessons highlighted by the Nelson Review
In the final part of our four-part CIS series, we zoom out to examine what government-backed Contract-for-Difference schemes are really achieving — drawing on policy lessons from the Nelson Review.
The ENTSO-E ‘Factual Report’ on ‘Grid Incident in Spain and Portugal on 28 April 2025’ is out
Some of our readers will be interested to note that the Factual Report into the ‘Grid Incident in Spain and Portugal on 28 April 2025’ was released on 3rd October 2025.
Are CIS-ters doin’ it for themselves? Part 3: Treatment of curtailment risk
In part three in this series about the CIS, we look at how a curtailment provision — briefly included in drafts for Tender 1 but later removed — may raise questions about how revenue...
Are CIS-ters doin’ it for themselves? Part 2: Understanding why there are delivery challenges
In part two of this four part series about the success of the CIS so far, we explore why delivery challenges may have emerged.
Are CIS-ters doin’ it for themselves? Part 1: Tracking the progress of CIS projects post-award
Recent debate has centred on the CIS’s success so far. In part one of this four-part series, we look at how projects have progressed since being awarded a contract.