Significant (-786MW) drop in NSW demand, on Wednesday 13th November 2024
The ‘Notifications’ widget in one of our copies of ez2view triggered an alert that we’ve not seen all that often at all, flagging a 786MW drop in ‘Market...
Eventful Days
A quick look at Yallourn unit operations, on Tuesday 12th November 2024
Partly prompted by a comment yesterday from a WattClarity reader (Liam), and powered by 'next day public' data, we take a look at Yallourn Power Station on Tuesday...
*later* drops in NEM Mainland Frequency on Tuesday 12th November 2024
We’ve already looked at how there was a drop in system frequency at ~10:41 NEM time (outside of the NOFB) in conjunction with trips of units at Yallourn...
VIC Inertia drops low, but combined VIC+SA level stays clear
Inertia levels, measured in megawatt-seconds (MWs), dropped towards the targeted secure operating level and the minimum threshold level on 12 November, 2024.
Data Intensity of operating in the NEM, and implications for algorithmic bidding
Philippe Orhan from Neoen shares this article which is adapted from his presentation about BESS bidding (and dealing with the complexity in the data) in the NEM at...
A closer (though still cursory) look at NEM Mainland Frequency in a data extract on Tuesday 12th November 2024
A second quick look at the drop in NEM Mainland Frequency on Tuesday 12th November 2024.
NEM Mainland Frequency drops below the NOFB, on Tuesday 12th November 2024
A quick article recording the drop of NEM Mainland Frequency below the lower bound of the NOFB on Tuesday morning 12th November 2024.
Evening volatility in QLD and NSW (and low IRPM) on Monday evening 11th November 2024
Monday evening 11th November 2024 sees volatility return in QLD initially, and soon also in NSW.
Reviewing the ‘N-MNYS_5_WG_CLOSE’ Constraint Set, as a major factor in recent northern volatility
As time permits, we're chipping away at an exploration of the volatility in QLD and NSW on Thursday 7th November 2024. In this article we take another step...
A much shorter run of evening volatility in QLD and NSW on Friday 8th November 2024
There were not as many SMS pings on Friday 8th November 2024 as there were for price alerts the day before, with the only 4 dispatch intervals in...
A view of the extracted Mainland Frequency trace on Thursday afternoon 7th November 2024 (Part 2)
Yesterday, amongst the volatility, we also wrote about a ‘Small (NEM Mainland) frequency wobble, on Thursday afternoon 7th November 2024’. As a stepping stone to further analysis, we...
Three dispatch intervals (sampled from a long run of volatility on Thursday 7th November 2024) to illustrate the complexity (and significance) of congestion
We’ve selected three dispatch intervals through the long run of volatility in the QLD and NSW regions on Thursday 7th November 2024 to help illustrate: 1) How the...
VIC1-NSW1 interconnector unable to Target Flow north, on Thursday afternoon-evening 7th November 2024
A quick summary about the presence of constraints limiting the ability of the southern regions to help, via the VIC1-NSW1 interconnector, on Thursday 7th November 2024.
Late afternoon and Evening run of volatility in NSW and QLD, on Thursday 7th November 2024
It was a hot and sweaty walk home from the Brisbane office late this afternoon, accompanied by the incessant buzzing of my phone … due to the run...
Small (NEM Mainland) frequency wobble, on Thursday afternoon 7th November 2024
Perhaps contributing to the early start to price volatility in NSW this afternoon was the wobble in system frequency shown here?
Price volatility starts early, on Thursday 7th November 2024
An earlier-than-expected spike in spot price in NSW on Thursday afternoon 7th November 2024.
Possibility of volatility in QLD and NSW on Thursday evening 7th November 2024
A quick look in the morning of Thursday 7th November 2024 utilizing this collage of 4 different ‘Forecast Convergence’ widgets in ez2view at the 08:35 dispatch interval looking...
Early evening volatility in QLD and NSW on Wednesday 6th November 2024
Here’s a snapshot of NEMwatch at the 17:50 dispatch interval (NEM time) highlighting evening volatility in the QLD and NSW regions as we pass beyond sunset on this...
Mainland frequency wobbles, on Wednesday 6th November 2024
A very short article for Wednesday 6th November 2024, such that we might follow up later, to note the following two wobbles in frequency in the mainland NEM...
Significant drop in ‘Market Demand’ in South Australia on Tuesday afternoon 5th November 2024
A short record of a significant drop of 'Market Demand' in South Australia on Tuesday afternoon 5th November 2024 ... down 710MW (or 60% of the initial value)...