AEMO releases Incident Report on 25th May 2021 event emanating from Callide C4
This morning (Fri 8th Oct) the AEMO has released its Incident Report into what happened on 25th May 2021, starting with problems at Callide C4.
Read MoreWinter 2021 in the NEM
A collection of articles about events that occur through winter 2021 in the NEM (i.e. June, July, August 2021)
The Contagion of Scarcity
Guest author, Josh Stabler of Energy Edge, provides a look into the ‘contagion of scarcity’ events impacting the market since mid-May 2021.
New low mark for production from brown coal on Saturday 28th August 2021
Following comments on social media over the weekend about a new low point for brown coal generation, I took a quick look.
Biggest price shock in history
Carl Daley of EnergyByte, examines recent energy and gas price volatility, leading to the conclusion that the May to July period in QLD and NSW has been the biggest shock to the spot market in history, and the forward price movements are rivalling the record setting year of 2007.
Low wind production (inside NSW+QLD) was one other factor contributing to price volatility in Q2 2021
As Q2 2021 unfolded, it seemed that there were many instances where prices spiked during evening demand peaks – and that wind output was low at the time. So I took a closer statistical look…
A quick look at the generator bids across Sunday 23rd August 2021 (when Solar temporarily eclipsed Coal)
Prompted by reports elsewhere of solar PV production eclipsing coal-fired production on Sunday for a period of time, I had a quick look (including at aggregate bid volumes).
AEMO identifies Power System Oscillations in ‘Polygon of Pain’ (Briefing Session – Wednesday 25th August)
A short note from AEMO’s weekly newsletter – about power system oscillations in west Murray region (VIC/NSW)
NEM-wide minimum demand (in winter) drops lower on Sunday 15th August 2021 … and Renewables Share in VIC higher
Sunday 15th August saw lowest level of Operational Demand in the NEM for a winter period, NEM-wide. This also led to a number of other outcomes (including higher renewable penetration, negative prices, … and chatter on social media).
A list of (some of) the factors contributing to the volatile price outcomes seen in Q2 2021 – particularly QLD and NSW
Prompted by last Friday’s publication of the AER’s ‘Wholesale Markets Quarterly’ for Q2 2021, here’s a tabulated summary of some of the contributing factors of spot price volatility (and hence high average prices) for the quarter – particularly for QLD and NSW.
Fire at Victoria Big Battery under control – Monday 2nd August 19:21
One Monday evening article noting reports that the fire at Victoria Big Battery is under control.
Fire continues at Victoria Big Battery into Monday morning (10:42am)
Monday’s update on the fire at the new ‘Victoria Big Battery’ – which seems to have mostly come under control by the afternoon.
Victoria Big Battery still burning on Sunday morning 1st August 2021
A short update on Sunday 1st August 2021, about the continuing fire at the Victoria Big Battery.
$1.5b write-down in value of assets at Origin Energy
On Thursday 30th July 2021 Origin Energy announced a large impairment on several different types of assets – its own generation portfolio, renewable PPAs, and gas purchase contracts. However the focus in the media sometimes did not include all three…
Three additional pieces of data, with respect to the (fire-affected) ‘Victorian Big Battery’
It’s Saturday evening, and here’s a look at what additional data I can see, in relation to the fire (and any after-effects) with the Victorian Big Battery.
Not a great start to operations at Victoria’s new ‘Big Battery’! (part 2)
Following the (very brief) initial article early this afternoon, here’s some more of what we have been able to determine about today’s fire at the new Victoria Big Battery facility near Geelong VIC.
Victoria’s new ‘Big Battery’ on fire (part 1)!
Here’s first data about Victoria’s Big Battery … which is on fire on Friday afternoon 30th July 2021 (literally!).
Peak instantaneous wind generation record continues to tumble – higher still on Sunday evening 25th July 2021
The all-time record for ‘peak wind’ continues to climb, with a Sunday evening contribution pushing it higher again.
Callide C3 back online on Monday morning, 26th July 2021
A short article marking return to service for the Callide C3 unit, which has been offline since 25th May 2021.
Callide C3 within 8 hours of return to service early Sunday morning 25th July 2021 … but rebid and pushed back further!
Another quick look at the latest date that is visible for Callide C3, and when it’s expected to Return To Service.
New all-time record for NEM-wide wind production on Saturday 24th July 2021 (above 6,000MW for the first time)
Saturday evening 25th July 2021 saw the instantaneous production from wind farms across the NEM surge past 6,000MW for the first time and set a new ‘all-time’ record that’s substantially higher than the previous record (set only a few days beforehand).