New lowest point for NEM-wide demand also set on Sunday 1st October 2023
Looking back at yesterday (Sun 1st Oct 2023) it appears to also have seen a lowest point for NEM-wide demand by both measures … lower than the low point set ~2 weeks prior.
Market Operations
‘Minimum Demand’ in South Australia drops further below 0MW on Sun 1st October 2023 – measured by Market Demand
Also noteworthy on Sunday 1st October 2023 was a lower point for ‘minimum demand’ seen in South Australia … with ‘Market Demand’ down to -37MW and ‘Operational Demand’ down to 5MW (just above 0MW)
QLD minimum ‘Market Demand’ (in ordinary times) drops lower still, on Sunday 1st October 2023
Sunday 1st October 2023 and the ‘minimum demand’ point for the QLD region (measured by ‘Market Demand’) has fallen lower still on a sunny spring long weekend.
Bouldercombe battery has started charging again (Thursday evening 28th September 2023)
A short article Thursday evening 28th September 2023 with the battery back online and charging, after the fire.
CS Energy update on repairs to Callide C3 and C4 cooling tower
A quick article, following a social media update by CS Energy on the repair process for the cooling towers at Callide C.
Another (Tesla) big battery fire in the NEM … this one at Bouldercombe BESS in QLD
It’s Wednesday morning 27th September 2023 and the fire that started last night at Bouldercombe BESS (Tesla battery for Genex) is still burning.
Federal Court finding relating to Pelican Point CCGT on 8th February 2017 … and upcoming market changes
Also in the news this week (a Federal Court judgement in relation to AER instituted proceedings against Engie in relation to Pelican Point from 8th Feb 2017) … which is coincidental with upcoming changes in the market for generator obligations.
System Strength constraints strike again in northern QLD – this time on Wednesday 6th September 2023 (Part 1 of Case Study?)
On Wednesday 6th September many Semi-Scheduled (wind and solar) units in northern QLD were ‘constrained down’ for System Strength reasons. We take a first look as part 1 of a Case Study (more parts *may* follow).
Power Surge on 30th August 2023 affects Azure Services – and hence AEMO services (and GR services)
A quick status update, early on Thursday 31st August 2023, about issues at Azure (caused by a power surge) that has been affecting AEMO (and our) systems.
Case Study of high AggSchedTarget on Thu 30th Jan 2020 and Fri 31st Jan 2020 (part 1!)
In this article we delve in deeper on Thu 30th Jan and Fri 31st Jan 2020 … two days that saw extreme levels of ‘Aggregate Scheduled Target’ (i.e. AggSchedTarget – a requirement for firming capacity). A timely review, given two developments arriving tomorrow (on Thursday 31st August 2023).
Implemented: Enablement of bid energy MaxAvail for semi-scheduled generators
The change to use MaxAvail from the energy bid, for semi-scheduled units, was implemented on 7 August 2023.
Enablement of ‘MaxAvail’ in the Bid for Semi-Scheduled units to go live (Mon 7th or Tue 8th Aug 2023) … and other enhancements in future
2 x AEMO Market Notices this afternoon prompt this article about four upcoming Market Enhancements … with the first to planned to commence from next Monday 7th August 2023
Mid-July update on repairs on Callide C3 and C4 cooling tower
A quick note on WattClarity to tie in an update (earlier this month) from CS Energy on the rebuild of the cooling tower for Callide C3 and C4.
Mid-afternoon prices elevated with modest wind and modest solar
A quick look at elevated prices mid afternoon on Monday 3rd July 2023.
A cold evening drives NEM-wide demand high, and IRPM low, on Tuesday 20th June 2023
The ‘Australian Energy Week’ conference this week in Melbourne, and the NEM this evening has given a real-time example of some energy transition challenges.
Transmission outage of the Dapto -to- Kangaroo Valley transmission link in southern NSW (line 18) … and spot volatility
For several reasons we take a look at a transmission outage in southern NSW that contributed to some volatility seen in QLD and NSW in the second half of May … and might also do in the second half of June 2023.
The never-ending (horror) story at Callide C … more long delays in expected Return-to-Service
More updates recently about the Callide C power station. Looks like we’ll be waiting a while longer for the (delayed again) return to service…
AEMO declares Scheduling Error (incident #54) with respect to post-Liddell snag
AEMO has confirmed our earlier hunch of a Scheduling Error in the immediate aftermath of the Liddell unit retirements.
(Early!) winter evening volatility returns to QLD and NSW on Wednesday 24th May 2023
A quick article to capture volatility in QLD and NSW on Wednesday evening 24th May 2023.
Liddell’s ghost stalks the market
During early morning Monday 1st May prices spiked in the NSW quite unexpectedly. Guest author Allan O’Neil takes us into the complexities of the EMMS and NEMDE to help us understand the mechanics of how this happened.