Operational snags at Bayswater unit 2
We’d seen Bayswater unit 2 come offline this morning, and wondered if we’d not seen the unit bouncing ON-OFF a few times recently.
Loy Yang A
Loy Yang A2 joins three other coal units in VIC offline
We’ve only just published ‘AEMO directs 4 units on in Victoria, to cover System Strength shortfall’ … noting that, at that time, there were 3 coal units in Victoria offline.
Our ‘Notifications’ widget in ez2view has alerted us that Loy Yang A2 unit has also come offline shortly afterwards (just prior to 09:30 NEM time).
Drop in NEM mainland frequency on Friday 18th October 2024 following trip of Loy Yang A2
Another ‘interesting’ event today … a dip in mainland frequency with trip of Loy Yang A2.
Minor drop in NEM Mainland System Frequency on Friday 11th Oct 2024, most likely related to trip of LYA1
A quick record of the trip of Loy Yang A1 unit just prior to 08:40 (NEM time) this morning … Friday 11th October 2024:
Reviewing rebids at Loy Yang A1 for Tuesday 20th August 2024 … [alternate title = tips for ez2view users in the ‘Bid Explorer’ widget]
For several reasons (including as prompted by conversations with several different clients in recent days) here’s a review of rebidding at Loy Yang A1 as the unit came offline on Tuesday 20th August 2024.
Using the ‘Next Day Public’ data set to see more about yesterday evening’s unplanned outage at Loy Yang A1 (which remains offline at this point)
A brief follow-on to yesterday evening’s article about the unplanned outage at Loy Yang A1 (Tue 20th Aug 2024).
Unplanned outage at Loy Yang A1
A quick look at some market data in ez2view, with respect to Loy Yang A1 unit coming offline on Tuesday afternoon 20th August 2024.
Wobbles in recent days, at Loy Yang A
A brief follow on article about Loy Yang A station, following the A4 unit trip yesterday, and unsuccessful return to service today.
System frequency drop with trip at Loy Yang A4 on Wednesday 14th August 2024
A short record of a coal unit trip around the time of a system frequency drop. on Wednesday 14th August 2024.
Evening burst of volatility across the NEM on Monday 5th August 2024
A slightly longer summary (compared to this morning’s) of some evening volatility (across the NEM) on Monday evening 5th August 2024.
How fast is a trip?
Curiosity (part triggered by some conversations I noticed on social media) drove me to have a look at the implied ROCDOWN in the AEMO 4-second data for the 5 facilities (10 DUIDs) involved in rapid ramp down on Tuesday 13th February 2024.
From the 4-second SCADA data, a view of Production by Fuel Type on Tuesday 13th February 2024
Following the review of bidding in VIC on Tue 13th Feb 2024, this review of the 4-second data for VIC on the day reveals another 28 Observations/Questions to explore later.
AEMO preliminary report identifies 4 separate Events … including trips* at 4 Generators and 1 Load
Some things in the AEMO’s Preliminary Operating Incident Report that stood out to me, and which will assist in our further investigations on WattClarity.
A quick first pass through ENERGY bids (for Victorian units) on Tuesday 13th Feb 2024
Five days after Tuesday 13th February 2024 we have a bit of time to take this initial (top-down) look at bidding for ENERGY in the Victorian region on that day … with 27 Questions/Observations identified!
Weathering the Storm: Victoria’s Record-Breaking Energy Day
Perhaps unrealised by many, but Tuesday afternoon’s events in Victoria resulted in a new record low in terms of number of coal units being online in the region, Geoff Eldridge explores.
A major blackout left 500,000 Victorian homes without power – but it shows our energy system is resilient
Dr Roger Dargaville from the Monash Energy Institute argues that Tuesday’s events in Victoria were a showing of a system resilience, and not fragility.
[SLIGHTLY UPDATED] a sequence of events for what happened in Victoria through the day on Tuesday 13th February 2024 (via Timescale #1)
In this article we’ll have a first pass at what happened in Victoria on Tuesday 13th February 2024 at a DI-by-DI level … which we call ‘Timeline #1’ level – noting will go more granular later (Timeline #2) and less granular later (Timeline #3).
Loy Yang A4 commences return to service ~26 hours after trip on Tue 13th Feb 2024
The third (of 4) units at Loy Yang A that tripped on Wed 13th Feb 2024 is beginning to return to service ~26 hours afterwards.
Hiccup in return to service of Loy Yang A2
A follow up on the (bumpy) return to service for Loy Yang A2
Loy Yang A3 starts up, as the second (of 4) units to return to service
The start of a return to service for Loy Yang A3.