Generation gone with the wind
Ashleigh Madden of WeatherZone reports that a cold front has marched across southern Australia, breaking the week-long wind lull.
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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.
The wind is back … some days earlier than suggested in AEMO’s older forecasts
A short note (on Thursday morning 18th April 2024) about how (and some questions why) aggregate wind farm production in the NEM is back, earlier than initially forecast.
Brief Case Study of low aggregate VRE (Wind + Large Solar) on Saturday 13th April 2024 … Part 1?
Taking a quick look at the dispatch interval through this period of low aggregate wind harvest that also saw lowest aggregate VRE (Wind + Large Solar).
Has the wind lull of early 2024 Q2 spooked the futures market?
A quick look at how the current spell of low wind production has coincided with (and contributed to) a rise in futures prices.
NEM-wide wind lull stretches extends to a full week (Tue 16th April 2024), and has another week to go!
A quick look at a period of low wind harvest across the NEM in April 2024 that’s already stretched ~7 days and looks like it might have more days to come …
Tasmania’s grid frequency on Friday 12 April 2024
Three data points points help to highlight the change in grid frequency in Tasmania on 12 April 2024.
Low wind production on Monday morning 15th April 2024
A short article to record low wind, particularly in SA and VIC on Monday morning 15th April 2024 – hence elevated prices.
The Australian notes how Callide C was back in court again this week
Another update from the Australian during the week with respect to the Federal Court proceedings with respect to Callide C (particularly unit C4).
Trip of 550MW of industrial load in Tasmania on Friday 12th April 2024
A belated article recording how (on Friday 12th April at 10:48) the Sheffield – Farrell No.2 220 kV line tripped during restoration due to fault on the line, disconnecting ~550MW of major industrial load in Tasmania.
An update on Callide C3 (back online) and Callide C4 (still offline)
A few separate questions about Callide C3 and C4 in recent days prompts this short status update on both units.
What was the cause of the coincident trip of Eraring units 1 and 2?
It’s Monday 8th April, the two Eraring units that tripped last week are back online – and I wonder what the cause of the coincident trip was?
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.
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 particularly around ~13:08 when the towers were downed.
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.