NEM Mainland Frequency wanders south as the sun sets, on Thursday 2nd October 2025
A very short article recording another instance of frequency wandering south as the sun is setting (this one on Thursday 2nd October 2025).
Market Operations
(3 units at) Torrens B station to remain open until mid-2028 after funding arrangement reached
Yesterday (Wed 1st Oct 2025) we had follow-on news about Torrens B, with the Premier of South Australia announcing that ‘Government negotiates energy security agreement’.
Eraring Unit 3 comes offline early Thursday 2nd October 2025 – on the (delayed) short-notice maintenance outage
Following earlier articles about the (delayed) unplanned outage on ER03, worth noting it finally came offline Thursday morning 2nd October 2025.
ABC reports ‘Rio Tinto’s Gladstone coal-fired power station could be retired early’
A very short article here from us today to point readers here to the ABC News article ‘Rio Tinto's Gladstone coal-fired power station could be retired early’ from earlier today
AEMO forecasts MSL1 for the coming Saturday 4th October 2025 and Sunday 5th October 2025
On Monday 29th September 2025 the AEMO alerted of possible MSL1 for the coming weekend (Sat 4th October and Sunday 5th October) in Victoria.
A quick review of QLD solar (and curtailment) on Monday 29th September 2025 with price at MPF
On LinkedIn someone wrote about the QLD price dropping to the Market Price Floor for the 10:05 and 10:10 dispatch interval today (Mon 29th Sept 2025). So I had a quick look
Start date of short notice outage at ER03 delayed again, now Friday 3rd October 2025
Late on Thursday 25th September 2025, the expected start of the short-notice outage at ER03 was pushed back again (this time by a week).
The start of the unplanned outage at ER03 is delayed till early Saturday morning 27th September 2025
As a short follow-on article now mid-morning Thursday 25th September 2025 to highlight the delay in the start of the unplanned outage at ER03 as one of the key drivers in AEMO's cancellation of...
Unplanned outage at YWPS2 extended – return to service slated for 15th December 2025 (and may well extend further)
We noticed today (Wednesday 24th September) an ~8 week extension added onto the expected return to service date for YWPS2, which tripped offline due to 'LP turbine issues' in August 2025.
Some leading indicators of possible volatility in NSW on Thursday evening 24th September 2025
A quick look forward (past the forecast LOR1) to tomorrow evening in NSW, Thursday 25th September 2025.
A quick review of AEMO direction for System Strength in NSW back on Thu 28th August 2025
With the need for an early morning direction flagged for NSW on Thursday 25th September 2025, we take a quick look back 4 weeks ago (to Thursday 28th August 2025) when it happened.
AEMO notes possible early-morning direction in NSW on Thursday 25th September 2025
Worth calling out MN129729 published on Wednesday 24th September 2025 at 14:29 about possible early-morning intervention in NSW for System Strength reasons
ER03 now (again) slated to come offline early Thursday morning 25th September 2025
Following from the quick look at the unplanned outage for MP2 (now underway) there's some difference in the picture for the unplanned outage for ER03.
Yes, MP2 did come offline in the early hours of Wednesday morning 24th September 2025
A short note looking at the commencement of the unplanned outage for MP2 on Wednesday morning 24th September 2025
AEMO oscillates warnings – possible need to intervene in NSW on Thu 25th Sept 2025 for System Strength reasons
At 15:30 today (Tuesday 23rd September 2025) the AEMO flagged in MN129259 a possible need to intervene in NSW this Thursday 25th September 2025 due to forecast low System Strength.
Mainstream media reports about blades lost at Flyers Creek Wind Farm
A brief, belated and back-dated article to point to the ABC news article about the damage at Flyers Creek Wind Farm (and
Belatedly noting 16 winners announced (on Tuesday 16th September 2025) in Capacity Investment Scheme auctions
Coincident with last week's CEC's QCES in Brisbane, the Federal Government announced 16 winners for 'Tender 3' of the Capacity Investment Scheme.
Prices for Lower Regulation FCAS elevated across the mainland Sunday afternoon 21st September 2025
A short article looking at some elevated prices for Regulation Lower FCAS on Sunday afternoon 21st September 2025
A brief recap of a large afternoon frequency wobble on the NEM mainland on Saturday 20th September 2025
We noticed yesterday (Saturday 20th September 2025) a large afternoon dip in frequency down towards (but not outside) the limits of the NOFB - and briefly explore here.
Update to Constraint Violation Penalty (CVP) Factors – effective 19th September 2025
Referencing AEMO's MN129117 published Tuesday 16th September 2025 with respect to this Friday 19th September 2025.