The state-of-charge for 2024: The highs and lows of the big battery boom
Following on from a similar review this time last year, Dan provides an updated look at the economics and performances within the NEM's big battery fleet, making use...
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Large instantaneous jump in ‘Market Demand’ in NSW on Tuesday afternoon 18th February 2025
A relatively large jump in 'Market Demand' in the NSW region from 16:05 to 16:10 on Tuesday 18th February 2025 caught our attention.
A look at curtailment through the GSD2024
After reviewing the latest version of our Generator Statistical Digest (GSD), David Leitch shares his top insights about VRE curtailment across the NEM in 2024.
Reviewing LGC creation at Codrington Wind Farm over ~24 years
With the news that Codrington Wind Farm (one of the first in the NEM) is to be closed, we take a quick look at 24 years of history.
Curtailment of Large Solar reaches ~72% (NEM-wide) on Sunday 16th February 2025
Given the situation that unfolded on Sunday 16th February 2025, we take a look at curtailment of Large Solar production (not quite a record).
Indicators of solar farm performance with GSD2024
Seeking indications of possible performance at solar sites announced in the CIS tender of 2024, we inspect statistics of nearby solar farms using the GSD2024.
New lowest-ever* point for NSW ‘Market Demand’ on Sunday 16th Feb 2025 was lower than AEMO’s earlier forecasts
Second article pertaining to the remarkably low level of 'Market Demand' in NSW on Sunday 16th February 2025.
‘Lowest ever*’ point for ‘Market Demand’ in NSW crashes lower, on Sunday 16th February 2025
The bottom has dropped out of the 'record minimum demand' point for NSW on Sunday 16th February 2025.
NEM Mainland Frequency wandering (somewhat more than ‘normal’) on Thursday afternoon 13th February 2025
A quick note with snapshot taken at ~15:11 on Thursday 13th February 2025 looking back at the past 6 hours of NEM Mainland Frequency.
An initial walk through contributions in South Australia on Wednesday 12th February 2025 (i.e. Part 1)
If I had time, we'd explore three separate questions we have about what happened in South Australia on Wednesday 12th February 2025. In this article we take a...
Spare capacity in South Australia drops below 100MW on Wednesday evening 12th February 2025
A follow-on article focused on the 19:00 dispatch interval on Wednesday 12th February 2025 in South Australia (a very tight period for supply-demand balance).
‘Market Demand’ soars in South Australia on Wednesday evening 12th February 2025
Tuesday 12th February 2025 is seeing very high levels of 'Market Demand' into the evening in South Australia.
Whiplash abated … market oscillations stopped on Wednesday afternoon 12th February 2025
Following an earlier article (on Wednesday morning 12th February 2024) we note the end of oscillations related to the newly composed ‘N-BU_330_TX_ONE’ constraint set for an outage related...
A trend of daily peak SA ‘Market Demand’– from 1st January 2008 to 11th February 2025
With respect to forecasts for peak South Australian ‘Market Demand’ in summer 2024-25 (and particularly with expectations of high demand on Wed 12th Feb 2025) we've provided this...
Whiplash from yo-yo-ing prices (and hence targets etc) on Wednesday morning 12th February 2025
Wednesday morning 12th February 2024 sees rapid and large oscillations in prices across all regions - which results from (and/or leads to) oscillations in output of many units....
Evening volatility in South Australia, with high demand, on Tuesday 11th February 2025
With warnings that tomorrow could see high (higher!) demand in South Australia, we take a quick look at high demand experienced on Tuesday 11th February 2025.
Wednesday 12th February 2025 could be a big day for ‘Market Demand’ in South Australia
DTN (a.k.a. Weatherzone) says tomorrow South Australia might see 'hottest day in 5 years'. Well, correlated with that, AEMO forecasts show it might see highest 'Market Demand' in...
Some remarks on Victorian demand
Allan O'Neil takes a closer look at Victorian electricity demand on Sunday, February 2nd — which stood out as an unprecedented anomaly when looking at the history of...
New FCAS resources dominate enabled levels in 2024
Using the latest GSD – GSD2024 – we take the opportunity to reflect on FCAS enablement and how enabled levels are changing between technology types.
Large jump in ‘Market Demand’ in NSW on Friday afternoon 7th February 2025
A short record of a large (i.e. >400MW) change in ‘Market Demand’ in the NSW region for the 17:15 dispatch interval (NEM time) on Friday 7th February 2025,...