Low IRPM eventuates (as low as 10.89%), as expected, on Tuesday evening 18th June 2024 .. reaching 120 minutes
A contemporaneous record of a run of low IRPM on a NEM-wide basis that’s reached 120 minutes long.
Eventful Days
‘Collector to Yass 3L’ network outage truncated, 3 weeks early
A short note recording the (very fortuitous) curtailment of the ‘N-CTYS_3L_WG_CLOSE’ constraint set as the Collector Wind Farm to Yass 3L 330kV line returns to service 3 weeks earlier than expected.
Potentially challenging lack of reserve conditions in NSW over 18 to 21 June 2024
Prompted by sequence of alerts about of lack of reserve market notices I delved in to the data to understand where and when using the LOR outlook for the NEM’s regions in ez2view. The alerts were configured on market notices…
Mt Piper unit 1 offline till Monday 24th June with boiler tube leak
Mt Piper unit 1 appears to have come offline overnight for boiler tube leak, with expected return to service sometime Monday 24th June 2024.
NEM-wide IRPM might be below 15% during evenings the next 3 days… Tue 18th, Wed 19th and Thu 20th June 2024
Following a 90-minute period of low IRPM yesterday evening (Mon 17th June 2024) we take a quick look at see forecast low levels of IRPM for Tue 18th June evening (very low!) and Wed 19th June and Thu 20th June.
90-minute run of IRPM < 15% on Monday evening 17th June 2024
Second article this evening (Mon 17th June 2024) adding some more detail to the tight supply-demand balance, hence low IRPM, this evening.
Cold temperatures and low wind push NEM-wide IRPM down to 11.76% on Monday 17th June 2024
This evening we are experiencing a tight supply-demand balance NEM-wide, stemming from cold temperatures, and low wind conditions across the southern states.
Afternoon volatility in TAS on Friday 14th June 2024
An initial walk through afternoon volatility seen today (Fri 14th June 2024) in Tasmania.
An update on some coal-fired units, on Friday 14th June 2024
A quick look at several different coal-fired units, via the ‘Generator Outages’ widget in ez2view.
Market Notice 116985, QLD power system security intervention possible
A brief note to record that at 5:29:34 PM today AEMO have published Market Notice 116985 announcing a possible intervention to maintain power system security for the QLD region. Market notices of this form are now very familiar in recent…
Gas-fired generation running more strongly in TAS (and Tamar Valley CCGT for the first time) than it has over the past 5 years
Early in June 2024 we see the Tamar Valley CCGT unit running strongly in Tasmania for the first time in just over 5 years … part of the strongest run of gas-fired generation in TAS in a long time.
Wind yield drops again, prices rise in VIC, SA and TAS … and gas-fired generation is running strong
A quick look at market outcomes at the 08:25 dispatch interval on Thursday morning 13th June 2024.
A quick overview of market outcomes on Sunday 9th June 2024
A short-and-sweet (and back-dated) article to provide an overview of broad market outcomes on Sunday 9th June 2024.
Case Study of NEM-wide Aggregate Scheduled Target on Thursday 18th January 2024
Second short case study today in relation to Aggregate Scheduled Target … this one focused on a large ROCUP on Thursday afternoon 18th January 2024.
Case Study of NEM-wide Aggregate Scheduled Target in early February 2024
In conjunction with the completion of GenInsights Quarterly Updates for 2024 Q1, here’s a 7-day trend of Aggregate Scheduled Target in early February 2024.
Eraring and Yallourn units offline on unplanned outages again
A short article noting ER01 and YWPS3 offline for Unplanned Maintenance/Forced Outages, and another coming soon for ER02
A spurt of price volatility in South Australia on Thursday 6th June 2024
A short record of some volatility on Thursday afternoon 6th June 2024.
Elevated prices in SA on 4th June 2024
A brief run of high energy prices in SA on 4th June 2024 was observed in the evening. Energy prices as projected in the predispatch runs from earlier in the day had threatened to reach above $15000 but as time…
Snapshot of Monday evening 3rd June 2024
A quick article with a snapshot from NEMwatch at the 18:25 dispatch interval to highlight a couple things we might come back to later.
More detail on the poor wind yield through (most of!) April and May 2024
With the April-May 2024 period ending with 3 days during which it blew a gale, this wind powered energy generation provided some small boost to aggregate results in 2024 that disappointed when compared against 2023, 2022, 2021 and 2020.