High prices and tight spare supply, as NEM-wide IRPM drops down to 11.48% on Wednesday 11th June 2025
Cold weather this evening has brought prices above $7,000/MWh and tight reserve margins across the NEM.
Eventful days in 2025
A catalogue of articles pertaining to eventful days in 2025
Prices up in every region, on Wednesday evening 11th June 2025
A very quick note for Wednesday 11th June 2025 with this snapshot from NEMwatch at 17:00 (NEM time) to record the start of some elevated prices.
AEMO notes increased forecast for Unserved Energy (USE) in QLD due to network outages scheduled between Tue 17th to Fri 20th June 2025
Yesterday (Tuesday 10th June 2025) at 14:21 the AEMO published MN127491 that noted 'The increase in USE in Queensland ... is primarily driven by network outages scheduled between 17 and 20 June 2025'.
Cold winter evening driving NEM-wide demand higher, such as on Tuesday 10th June 2025
A cold winter evening (Tuesday 10th June 2025) is driving electricity demand higher, as captured in this snapshot from NEMwatch at the 18:10 dispatch interval.
Unplanned outage at YWPS3 (tube leak) extended (due to air duct collapse)
Yallourn unit 3 came offline for a tube leak - but ABC reports (on Mon 9th June 2025) that 'an air duct in unit three collapsed during maintenance', so we take an initial look.
Forecast LORx conditions for QLD, NSW and VIC in the coming week
This article uses the ‘Forecast Convergence’ widget, snapshot from ez2view at 07:25 on Monday 9th June 2025 to sum up some changing forecasts for LOR1 and/or LOR2 in QLD, NSW and VIC in the...
The commencement of Frequency Performance Payments (FPP)
Yesterday (Sunday 8th June 2025) saw the commencement of the new Frequency Performance Payments (a.k.a. FPP) method.
Cumulative ‘worm line’ view of NEMwide wind production in 2025 Q2 (to Sunday 8th June 2025)
Winter 2025 has arrived, with a cold front driving high wind production - which prompts this initial look in wind production for 2025 Q2 to date.
A 495MW drop in ‘Market Demand’ in NSW on Thursday morning 5th June 2025
Another short article to note a 495MW drop in demand in NSW (measured in 'Market Demand') to the 10:10 dispatch interval on Thursday 5th June 2025.
A map showing the geographic spread of semi-scheduled dispatch errors on Monday 26th May 2025
Dan adds to our ongoing case study into the events of Monday 26th May 2025, by mapping the dispatch error across all semi-scheduled units for the 16:15 dispatch interval that afternoon.
Across 188 Semi-Scheduled DUIDs – Dispatch Error at 16:15 on Monday 26th May 2025
This is my second article today relating to events on Monday 26th May 2025 - with this article looking at Dispatch Error for each of the 188 x Semi-Scheduled units to 16:15.
Noting the dust storm on Monday 26th May 2025 – and impact on electricity supply-demand
Belatedly noting the dust storm that past through South Australia on Monday 26th May 2025, which Andrew Miskelly of Weatherzone documented in a video on Bsky.
Evening price volatility in NSW on Sunday 1st June 2025
A short note with a NEMwatch snapshot at 17:15 to mark some low-level price action in NSW on Sunday 1st June 2025
Callide C back online, Sunday 1st June 2025
A short article to note that Callide C3 came back online in the early hours of Sunday morning 1st June 2025.
A trend of aggregate ‘Dispatch Error’ for each Semi-Scheduled fuel type on Monday 26th May 2025
Let’s now return to Monday 26th May 2025 to look at aggregate ‘Dispatch Error’ across both Semi-Scheduled fuel types for all dispatch intervals in the day.
A quick look at system frequency, with 2 x coal units offline overnight into Saturday 31st May 2025
It’s fitting to book-end the week with a look at frequency performance overnight (into Saturday 31st May 2025) with two coal unit outages in NSW overnight to see what happened in terms of more...
Evening volatility on Thursday 29th May 2025
A very short note with a snapshot of NEMwatch at 17:35 NEM time to mark the first dispatch interval this evening with a spot price above $1,000/MWh.
Poor dispatch performance of VRE (collectively) on Monday 26th May 2025 sufficiently large to drive frequency outside of NOFB
Prior to the Brisbane session of the Nelson Review Panel (on Thu 29th May 2025) we take a look at Dispatch Error in the 16:15 dispatch interval on Monday 26th May 2025 to see...
Price volatility in NSW on 28 May, 2025
The NSW dispatch energy price jumped to 17,560 $/MWh in the 16:50 dispatch interval on 28 May, 2025.
Was Monday evening’s new record wind production well forecast in advance?
Taking a closer look at the new 'highest ever' point for NEM-wide Wind Production on Monday 26th May 2025, and how well this was forecast in advance.