Current status of closure date for all 4 x Yallourn units
via 'Forecast Convergence' widget, we see (to date) consistent reporting to the AEMO of envisaged closure of all 4 x units at Yallourn being 1st July 2028.
Yallourn Power Station
‘What’s Yallourn ever done for us?’ Part 1
For a coincidence of several different reasons, here's a quick initial overview of how Yallourn Power Station has been performing over time, and particularly in Winter 2026 ytd.
Yallourn Power Station no longer bidding FCAS services (as seen via GSD2025)
One of the things that jumped out to us with the GSD2025 was the confirmation that all four units at Yallourn Power Station continued the pattern of late 2024 in ceasing to offer any of the 10 x FCAS markets.
Belatedly noting return to service of YWPS2 (after rebuild/replacement of the LP turbine)
I’ve been away for a bunch of time since late January, and have been otherwise focused on the days in which I’ve been working. Another to note is the return to service of Yallourn unit 2 last Monday afternoon 16th February 2026.
Updates (at 15:35) about Victoria on Friday 9th January 2026.
Here’s a snapshot from NEMwatch at 15:35 (NEM time) on Friday 9th January 2026.
Lengthy unplanned outage at Yallourn unit 2 extended another 19 days – expected RTS now 12th February 2026
On Friday 5th December 2025 we also saw EnergyAustralia report to AEMO the 19-day extension to the lengthy unplanned outage at YWPS2 following 'LP turbine issues' experienced in August 2025.
‘Blackout bingo’ in the media again this week … this time with Victoria and Yallourn
Following media reporting from Monday about 'blackouts' and 'Eraring closure', today (Wednesday 3rd December) there's a media report about 'blackouts' and 'Yallourn closure'
Expected RTS for Yallourn 2 slips a month – now offline until 24th January 2026
On Friday 14th November 2025, the expected return to service for YWPS2 was pushed back another ~6 weeks (now offline till Monday 24th January 2026).
Both YWPS3 and YWPS4 back online overnight
A quick follow-on early Friday morning 17th October 2025 to note that both YWPS3 and YWPS4 made it back online overnight.
Differing return to service expectations for YWPS3 and YWPS4, following simultaneous trips
Following the simultaneous trips (on Thu 16th Oct 2025) of YWPS3 and YWPS4, we take a look at current return to service expectations.
System frequency during simultaneous trips at YWPS3 and YWPS4 on Thursday 16th October 2025
System frequency remained within the NOFB, appears well managed given the supply loss approached 600 MW.
After Yallourn units trip, AEMO again issues directions to Jeeralang Power Station, for System Strength in Victoria
Following the simultaneous trip of units at Yallourn, directions to Jeeralang Power Station were issued for maintaining System Strength in Victoria.
Simultaneous trips at YWPS3 and YWPS4 on Thursday 16th October 2025
A short note on Thursday 16th October 2025 to record both Yallourn Units 3 &4 tripping during the 13:35 dispatch interval (NEM time) today.
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.
Newport Power Station running, with Yallourn’s yips yielding 1 unit operations
We noticed Bruce Mountain’s comments on LinkedIn about Newport power station running overnight, so had a look in ez2view.
Wobbles at Yallourn unit 4
A brief look at recent operational challenges at Yallourn unit 4.
Unplanned outage on Yallourn Unit 2 extended another ~month (with new RTS expectation 22nd October 2025)
As a further update on outage expectation for the damaged YWPS2 (which tripped with 'LP turbine issue' on Tue 26th August) the latest return to service expectation is now not until 22nd October 2025.
Frequency change with Yallourn unit 2 trip
We assess whether the trip at Yallourn 2 on 26 August 2025 was large enough to drive a frequency disturbance.
Notable forced outage at Yallourn Unit 2 … due to ‘LP turbine issue’
A first article about an unplanned (and potentially significant) outage at Yallourn unit 2 that began on Tuesday 26th August 2025 due to 'LP turbine issues'.
Three units at Yallourn Power Station offline on Monday morning 16th June 2025
Taking a look at the three of the Yallourn Units offline on Monday morning 16th June 2025.