On Sunday 3rd Aug 2025 there (appears to have been) a fire at Reece Power Station, and both units tripped. We saw REECE1 return to service Friday evening, but REECE2 looks set for a...
The Waratah Super Battery System Integrity Protection Scheme (SIPS) was enabled by TransGrid at last Friday 1st August 2025. This prompts this look back on operations thus far.
Yesterday's release of the draft report of the Nelson Review has prompted me to re-frame a question I've asked before about the Semi-Scheduled category.
Yesterday (Wed 6th Aug 2025) we saw the draft report from the ‘Nelson Review’ Panel released ... followed by a presentation by the panel members facilitated by The Energy. The recording of this webinar...
In yesterday’s wrap of the past 5 weeks, I’d noted that Tim Nelson (when speaking at #ACES2025 last Tuesday) said that the Panel had not quite finished the draft report, but it was ‘imminent’....
Following a tip from a WattClarity reader, we take a quick look at a forced outage for both units at the Reece (hydro) Power Station in Tasmania ... possibly related to an apparent fire...
It’s Tuesday 5th August 2025, my second day back in the office – and this is my first article on WattClarity since this article on Friday 27th June 2025. In this article I've invested...
We've already noted the ‘New all-time record for NEM-wide wind, on Monday 23rd June 2025’. But how low did wind production drop, on Thursday 26th June 2025?
Worth a short note today (Friday 27th June 2025) to note the publication of MN127877 – which references two market changes that will improve market transparency for all types of participants
Considering that it was 16:45 (NEM time) when volatility started it’s notable that we’re into our 4th hour of volatility now on Thursday evening 26th June 2025.
A further update on the volatility and high demand seen on Thursday evening 26th June 2025.
Here’s a NEMwatch snapshot at 16:50 (NEM time) on Thursday 26th June 2025 with the run of volatility in the southern regions already well underway.
I thought it would be worth adding a couple snapshots from the ‘Forecast Convergence’ widget in ez2view looking at ‘Market Demand’ as at various dispatch intervals on Thursday 26th June 2025 looking backwards ~7...
Here’s a snapshot from NEMwatch at 07:25 to record some morning volatility on Thursday 26th June 2025
It was now just over 5 years ago when Marcelle wrote ‘Not as simple as it appears – estimating curtailment of renewable generation’. This week's invocation of the 'N-DPWG_63_X5' constraint set provides a great...
A very short midday article on Wednesday 25th June 2025 noting this apparent trip of LYA2 unit from 443MW just prior to 11:31 (NEM time).
For those interested in ‘what happened, why and what should be done about it’ with respect to the 28th April 2025 blackout on the Iberian Peninsula, ENTSO-E is also investigating.
At 17:44 yesterday (Monday 23rd June 2025) the AEMO issued MN127743 noting an unplanned outage of Darlington Point - Wagga No.63 330 kV line (leading to the ‘N-DPWG_63_X5’ constraint set being invoked)
Another short article about a large change in demand – this one being a 409MW drop in ‘Market Demand’ to the 12:10 dispatch interval (NEM time) on Tuesday 24th June 2025.
Beginning Monday evening 23rd June 2025, the AEMO has forecast extremely tight supply-demand balance in South Australia (including possible load shedding) for Monday 30th June 2025.