Supply-side responses following the trip of two Eraring units on Wednesday 3 April 2024
An inspection of bids and dispatch outcomes indicates some units helped compensate for the loss of supply with the trip of ER01 and ER02.
Market Operations
Eraring Units Back
The two Eraring units that had tripped on Wednesday 3 April 2024 were returned to service by 11pm that evening.
Fast frequency recovery, on Wednesday 3rd April 2024
Fourth article on Wed 3rd April 2024, pertaining to the earlier coincident trip of ER01 and ER02 units at Eraring Power Station.
AEMO Market Notice 115944 about trip of ER01 and ER02
AEMO Market Notice 115944 notifies that the coincident trip of ER01 and ER02 was at 13:22 NEM time on Wednesday 3rd April 2024.
Replaying four dispatch intervals on Wed 3rd April 2024 with the ER01 and ER02 trip (Part 2)
In this second short article for the day, we Time-Travel ez2view back to 4 x Dispatch Intervals surrounding the coincident trip of ER01 and ER02 at Eraring Power Station.
Simultaneous trip of ER01 and ER02 drops mainland frequency in the NEM
A first article noting simultaneous trip of Eraring units 1 and 2 on Wednesday afternoon 3rd April 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...
Callide C3 starts up, after 518 days offline – on 1st April 2024 (no, that’s *not* an April fools tall tale)
It's Monday afternoon 1st April 2024 and Callide C3 has begun its journey back online following an outage longer than 500 days since the cooling tower failure in October 2022.
Recapping aggregate solar yield in Queensland’s ‘wet week’ prior to Easter 2024
A quick look back at the period before easter 2024, which was forecast to be a wet week in QLD ... looking particularly at solar yield.
Case Study of inertia supplied by source in the NSW grid on Tuesday 14th November 2023
With GenInsights Quarterly Update for 2023 Q4 completed, and some time till the end of 2024 Q1, we've looked back at Tuesday 14th November 2023 (when AEMO had concerns about low System Strength in...
Weatherzone forecasts possibility of Wind Farm (high wind speed) Cut Outs
A Weatherzone forecast of potential high wind-speed cut-outs at some Wind Farms in the coming days will be of interest to some WattClarity readers.
Missing megawatts and phantom generation
Seven days ago, AEMO notified the market of a Scheduling Error from 24th Jan 2024 to 7th March 2024. A client asked us what it meant - so guest author Allan O'Neil has helped...
The earlier fire at Torrens Island switchyard (Mon 25th March 2024)
Yesterday we wrote briefly about ‘Electrical fire in switchyard at Torrens Island Power station’ following a tip on 7News. In that news update, 7News mentioned that there was an earlier fire at the switchyard...
The fire at Torrens Island switchyard (Wed 27th March 2024) curtailed the Torrens Battery
With 'next day public' bid data, we see the impact the switchyard fire had on Torrens Island BESS on Wed 27th March 2024.
Electrical fire in switchyard at Torrens Island Power station
A quick article following a 7News Adelaide report of an electrical fire at Torrens Island power station.
Pelican Point penalised $900,000 for breach on Wed 8th February 2017
Today (Wed 27th March 2024) the AER issues a Media Release about a $900,000 penalty to Pelican Point (owned by Engie) relating to breach of rules on 8th February 2017.
Another slight slippage in return to service (RTS) expectation for Callide C3
A short note about another (minor) delay in return to service for the repaired Callide C3 unit, that suffered a cooling tower failure.
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...
AEMO report on multiple incidents impacting SCADA over almost 3 years 2021, 2022 and 2023
Also last week, AEMO informed the market of the availability of a report outlining 18 discrete incidents, over a period of just under 3 years, that included SCADA failure in some way. The report...
AEMO notifies of Scheduling Error (Incident 60) from 24th Jan 2024 to 7th March 2024
A short note on Thu 21st March 2024, the day the AEMO notifies the market of a Scheduling Error (incident 60) spanning 24th January 2024 to 7th March 2024.