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.
Seasonal Record of Events in the Market
Collections of events that we see happening in the NEM, categorised in terms of the seasons in which they occur.
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.
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 NSW) and looked at the level of inertia actually seen in the grid. A useful Case Study to say ‘what would have happened without Eraring?’
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 to explore and explain.
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 on Monday 25th March 2024. With…
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.
AEMO Market Notice about ‘Space weather’
Early this morning AEMO issued MN115774 about a Space Weather Event and warned ‘the effects are expected to be significant’.
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.
AEMO publishes GSOO 2024 … media headlines about Gas Shortages
On Thursday 21st March 2024, the AEMO released the Gas Statement of Opportunities (GSOO) for 2024 – warning of potential gas supply shortfalls as early as Winter 2025.
SA price spike on Tue 12th March 2024 with rapid ramp in demand
A short article to document a price spike in SA on Tuesday afternoon 12th March 2024
Spot price volatility in South Australia on Monday 11th March 2024
A short record of the start of some price volatility in South Australia on Monday 11th March 2024.
Elevated prices (and demand) in VIC and SA on Sunday evening 10th March 2024
A short record of evening volatility in VIC and SA during the heatwave on Sunday 10th March 2024.
Elevated demand in SA and VIC on Saturday 9th March 2024
A short note to record some slightly elevated demand in VIC and SA on Sat 9th March 2024 over a hot long weekend.
Moderately high demand forecast for South Australia on the Adelaide Cup Day long weekend
A quick look (Friday morning 8th March 2024) to moderately high levels of demand forecast for SA in heatwave conditions this long (Adelaide Cup Day) weekend.
Stanwell unit 1 still (mostly) running Fixed Load (Part 2) … but took time for a TTHL test on Wed 6th March 2024
A short note recording the ‘trip to house load’ (TTHL) test at Stanwell unit 1 on Wednesday 6th March 2024 … using the same parts of the plant subject to concerns about fatigue damage.