Summer reflections
Guest author, Carl Daley from EnergyByte, provides this summary of summer 2024 – covering price volatility, consolidation of the twin peaks dynamic, and BESS performance.
Read More2024-02-13 VIC ‘Significant Power System Event’
A collation of articles relating to what unfolded on Tuesday 13th February 2024 – with a ‘Significant power system event’ occurring in Victoria.
Note that there is a different category intended to collate the longer-term developments arising out of what happened on 13th February 2024.
Focusing on VIC exports (and imports) with the ‘Major Power System Event’ on Tuesday 13th February 2024
In this article we look again at Tuesday 13th February 2024 (Victoria’s ‘Major Power System Event’) and sum up the impact of the event on net exports from Victoria over a 14-hour period, but particularly around ~13:08 when the towers were downed.
A focused look at operations at Victoria Big Battery (VBB) on Tuesday 13th February 2024
In this article we circle back to Tuesday 13th February 2024 to tick off a few more of the long list of questions about the ‘Major Power System Event’ – in this article with respect to operations of the Victoria Big Battery.
Aggregate Dispatch Error across all Semi-Scheduled units (NEM-wide) throughout Tuesday 13th February 2024
Looking back at Tuesday 13th February 2024 there’s consistently large aggregate under-performance (compared to Target) across all Semi-Scheduled units in the NEM through daylight hours. The reason for the increased procurement of Regulation Raise.
Berrybank Wind Farms 1&2 in the 4-second data on Tuesday 13th February 2024
A short article sharing the trend of 4-second data for Berrybank 1 and Berrybank 2 Wind Farms on Tue 13th Feb 2024.
Moorabool Wind Farm in the 4-second data on Tuesday 13th February 2024
A very short article containing the 14-hour view of 4-second data for Moorabool Wind Farm on Tue 13th Feb 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.
A first (more detailed) look at Stockyard Hill Wind Farm on Tuesday 13th February 2024
This is a first ‘deeper dive’ into AEMO data (both 4-second SCADA data and in the EMMS via ez2view) to see what’s visible able Stockyard Hill Wind Farm on Tuesday 13th February 2024.
Victorian renewable generation on 13 February 2024: One picture and a thousand (sorry, many more) words
Guest author, Allan O’Neil, takes us several steps further in understanding the events in Victoria on Tuesday 13th February 2024 – especially with respect to VRE (wind and solar) production.
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!
14 hours of trended (mainland) frequency on Tuesday 13th February 2024
A first article from me after starting to delve into a 14-hour time series of AEMO’s 4-second data for Tuesday 13th February 2024 (this one a trend of frequency to highlight points of interest).
Aggregate enablement of RaiseReg FCAS from units in the mainland (excluding Basslink) on Tuesday 13th February 2024
A short article trending (through Tue 13th Feb 2024) aggregate enablement of Raise Regulation FCAS in DUIDs on the mainland … i.e. excluding Basslink.
AEMO Preliminary Operating Incident Report (re Tue 13th February 2024) is available
AEMO’s preliminary operating incident report for what happened on Tuesday 13th February 2024 is available now.
Convective downdrafts and high-voltage transmission lines
In light of another transmission tower collapse caused by convective wind gusts, we’ve invited wind loading expert Dr John Holmes to explain this phenomena.
Early observations from examining the AEMO’s four-second SCADA data from Tuesday afternoon
Allan O’Neil provides a couple of initial observations regarding Dundonnell Wind Farm and Loy Yang A from his first glance of at the 4-second SCADA data from the events in Victoria on Tuesday afternoon.
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).