Afternoon snapshot on Tuesday 28th May 2024
A quick afternoon snapshot of the NEM for the 16:00 dispatch interval on Tuesday 28th May 2024 in NEMwatch highlighting a couple things
Market Operations
Eraring Unit 1 comes offline for Economiser Tube Leak
Roughly 48 hours after Eraring unit 2 came back online (Sat 25th May 2024), Eraring unit 1 has come offline (Mon 27th May 2024) on a forced outage.
The ‘N::N_CTYS_2’ constraint equation will be invoked for another 11 days … out till Friday 7th June 2024
The AEMO has extended the scheduled invocation of the ‘N-CTYS_3L_WG_CLOSE’ constraint set (which contains the ‘N::N_CTYS_2’ constraint equation – one factor in the outcomes on Wed 8th May 2024).
There might be a sustained burst of wind generation to finish off the month of May 2024
AEMO’s ST PASA forecasts suggests that we might see a ~3 day period of stronger aggregate production from wind farms across the NEM to finish off the month or May 2024.
Low aggregate wind yield after sunset continues – Sunday 26th May 2024
The pattern of low aggregate wind production in the evenings after sunset (whilst demand is still peaking) continues … into Sunday 26th May 2024.
Eraring Unit 2 makes it back online, Saturday evening 25th May 2024
Eraring Unit 2 commenced return to service on Saturday afternoon 25th May 2024.
Low wind yield (again!) during sunset … this time Saturday evening 25th May 2024
For (at least) the third evening in a row (i.e. after sunset, and in line with evening peak in demand) aggregate production from all wind farms across the NEM has been quite low … today being Saturday 25th May 2024.
Low wind again on Friday 24th May 2024 … how low was wind yield for April and May?
A similar situation to wrap the working week (on Friday 24th May 2024) with low wind yield across the NEM persisting.
Also <40 days till the return of Barron Gorge
A quick update on the return to service expectation on Barron Gorge hydro power station.
Callide C updates – operations (<40 days till RTS!), and in the courts
At the end of an eventful week in the NEM, here’s an update on a few fronts with respect to Callide C.
NEM-wide aggregate wind yield under 500MW on Thursday evening 23rd May 2024
As the sun sets on Thursday 23rd May 2024 (the day of the announcement of the extension to the Eraring service life) we see aggregate wind yield dropping below 500MW.
A brief look at NSW volatility at 18:10 on Monday 20th May 2024
A question from a WattClarity reader this morning prompts this quick-and-cryptic review of NSW price volatility at 18:10 on Monday 20th May 2024, and particular output profile of Queanbeyan BESS
Vales Point 6 unit back online earlier than expected … Tuesday morning 21st May 2024
On Tuesday morning 21st May 2024 the Vales Point 6 unit has returned to service, ~2 days earlier than earlier expectations.
Price volatility in NSW on Monday evening 20th May 2024
A short record of some evening volatility in NSW on Monday 20th May 2024.
Softening of LOR forecasts for NSW in ST PASA and P30
Since the update Saturday morning, the Market Notices (relating to forecast LOR* in NSW on [some day]) have continued … here’s an update.
Case Study of 14:15 on Thursday 22nd February 2024 (large collective under-performance across all Semi-Scheduled units)
In part 2 of a Case Study about Thursday 22nd February 2024 – specifically looking at Aggregate Dispatch Error across all Semi-Scheduled units (and in this part 2 looking just at 14:15).
Aggregate Dispatch Error across all Semi-Scheduled units (NEM-wide) throughout Thursday 22nd February 2024
Finding some time to make some progress in compiling GenInsights Quarterly Updates for 2024 Q1, here’s a short Case Study of Thursday 22nd February 2024 (a day that saw significant collective under-performance of Semi-Scheduled units with respect to their Targets).
Both Eraring 2 and Vales Point 6 will be offline for a few more days
An early afternoon look (Sat 18th May 2024) about the delays in return to service for the forced outages at two NSW coal units (Eraring unit 2 and Vales Point unit 6).
Saturday morning wrap of forecast LOR conditions in NSW
Following numerous Market Notices overnight pertaining to Forecast LOR2 (or LOR1) in NSW for a number of coming days, here’s a summary on Saturday morning 18th May 2024 using ‘Forecast Convergence’ from ez2view.
AEMO publishes MN116654 for ‘forecast LOR2’ in NSW for Sunday evening 19th May 2024
Another ‘forecast LOR2’ notice from AEMO … this time looking at Sunday evening 19th may 2024.