QLD’s turn at new lowest point for minimum demand (in ordinary times)
It’s Queensland’s turn today, with a further ratchet lower in minimum demand on Sunday 17th September 2023.
Articles by Paul McArdle
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time.
As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.
New ‘lowest ever*’ points for Market Demand–in Victoria and NEM-wide on Saturday 16th September 2023 (and record high IRPM)
A quick capture of an unfolding situation on Saturday 16th Sept 2023 – seeing record low demand (in VIC and NEM-wide), and highest ever IRPM.
Extended long-term trend of wind production statistics (to the end of August 2023)
For a couple of reasons, I’ve updated/extended the trend of monthly aggregate statistics for wind farms across the NEM … now out till the end of August 2023.
AEMC proposes to progressively increase MPC to $22,800/MWh by 1 July 2027 (amongst other changes)
A short note about the AEMC’s draft determination, published today.
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).
NSW Government to explore option for (relatively short) extension to operations at Eraring Power Station … amongst other initiatives
Yesterday, the NSW Government released both the Marsden Jacobs report (NSW Electricity Supply and Reliability Check Up) and the Government’s Response.
It only took a day (after release of the 2023 ESOO) to get to RERT Tenders for summer 2023-24
Yesterday (Thu 31st Aug) we saw the release of the 2023 ESOO. Today (Fri 1st Sept 2023) AEMO calls for tenders for supply of ‘Reserve Trader’ in VIC and SA for summer 2023-24.
The 2023 ESOO again prompts the question … ‘what’s the contingency plan’?
The 2023 ESOO contains some some reporting (and data) about one particular contingency plan … delaying retirement of existing thermal generators (with Eraring a case in point).
Here’s 7 Observations that jumped out to me in a first skim of the 2023 ESOO
Apart from a distraction early this morning, I’ve invested some hours today in review of the 2023 ESOO. Here’s 7 initial observations that jumped out at me.
With the 2023 ESOO report, some real head scratching about Demand Response!
The 2023 ESOO contains some data, and comments, about Demand Response that have us scratching our heads…
With the 2023 ESOO report, different views about which USE figure should the AEMO have led with?
Here’s my view on whether Figure 2 should have preceded Figure 1 (with respect to projections of unserved energy … USE) in the 2023 ESOO.
The 2023 ESOO report shows coal unit EFOR is still a significant factor
One observation about the 2023 ESOO is that EFOR (equivalent forced outage rate) for coal and large gas units is a large and growing challenge.
The 2023 ESOO report clarifies why the transmission model only includes ‘System Normal’ – and why it’s a simplification
One observation about the 2023 ESOO is that AEMO is has highlighted the set of constraints modelled is only ‘System Normal’.
The 2023 ESOO modelling provides a more accurate real world depiction of Wind Farm limitations at high temperatures
One observation about the 2023 ESOO is that AEMO is now modelling (more accurately) the high temperature degradation on wind farm performance.
AEMO releases 2023 ESOO on Thursday 31st August 2023 (Australia’s NEM is perched on the edge)
AEMO notes that ‘Australia’s NEM is perched on the edge’ in the 2023 ESOO, released today (Thu 31st Aug 2023)
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).
2+ hour bout of spot price volatility in SA on Wednesday morning 30th August 2023
A quick record of some spot price volatility in South Australia on the morning of Wednesday 30th August 2023.
EnergyAustralia notes the likely change of operating mode for Mt Piper coal-fired power station in NSW
Third article today looking back at news with respect to ‘coal closure’ … this article pertaining to EnergyAustralia’s Mt Piper station in NSW.
Reports of recommendations to consider extending the life of Eraring Power Station
Also in the past week, news media (claiming to have sighted some of the ‘Electricity Supply and Reliability Check Up’ from MJA with respect to Eraring Power Station) report the potential extension of service.