New all-time record Wind Output across the NEM last night (5,430MW at 23:55 on Tuesday 13th April 2021)
David Osmond's question on Twitter prompted me to have a look at large wind production overnight.
Articles by Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients.
Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.
A quick review of the price spike in QLD at 14:35 on Friday 9th April 2021
Reminded by today's spikes, here's a quick look at a similar price spike that occurred yesterday (14:35 on Friday 9th April 2021 in the QLD region).
Several QLD price spikes on Saturday 10th April 2021
Three price spikes in the QLD region on Saturday 10th April 2021 help to remind us that how increasingly dependent we are on various machinations of the weather (including, on these occasions, cloud cover...
The ‘GSD2020 Data Extract’ is now available
Following a number of requests from our clients, we are pleased to note that a GSD2020 Data Extract is now available.
Piecing together what happened on Sunday 24th January 2021 with the ‘Q>>NIL_CLWU_RGLC’ constraint equation (Part 3)
It's taken a while to find the time - but today I'm posting this next analytical piece (Part 3) that seeks to understand what happened on Sunday 24th January 2021 with the NEM-wide SCADA...
AEMO publishes Preliminary Incident Report about incident on Friday 12th March in South Australia
A short article this afternoon to link through to the Preliminary Report published by the AEMO, looking into what happened in South Australia last Friday (12th March 2021).
Preliminary information on loss of SCADA data – for Case Study 24th January 2021 in Queensland
Two months ago prices spiked in QLD on a Sunday afternoon when AEMO lost SCADA data feed. One month ago AEMO published a preliminary report. In the background we have been taking a look...
Another QLD dispatch price spike as the sun sets (today on Sun 14th March 2021)
In what's become a fairly regular occurrence the past couple months, the price spiked in QLD for a single dispatch interval as the sun was setting.
Repair work on Heywood continues to affect South Australian region
A different type of market notice today (speaking of potential curtailment of embedded generation in South Australia) points to the future ... accelerated by Heywood repairs in this instance.
$15,000/MWh in South Australia on Friday 12th March 2021 … part 3 (quick thought to the future)
A shorter article - thinking more about the future, prompted by one of the factors that contributed to the price volatility seen in South Australia on Friday 12th March 2021
$15,000/MWh in South Australia on Friday 12th March 2021 … part 2 (what seems to have happened)
Prices have (finally!) subsided, so here's an initial review of what I can see about what happened in South Australia on Friday evening 12th March 2021. Apologies for mistakes (it's rushed, there will be...
Price spikes to $15,000/MWh in South Australia on Friday 12th March 2021 … part 1
The price has spiked in South Australia this evening (Fri 12th March 2021). Here's Part 1...
AEMC publishes Rule Determination on Semi-Scheduled Generators
This morning the AEMC has published its final rule focused on clarifying how Semi-Scheduled generators should follow dispatch targets - including in dispatch intervals where prices are negative, and some had been unexpectedly switching...
Confidential ‘safety net’ agreement stuck between the Victorian Government and Yallourn Power Station to keep power station operational to mid 2028
A brief (and back-dated) article pointing to the confidential “safety net” agreement struck between the VIC Govt and EnergyAustralia to keep Yallourn Power Station operational until mid-2028.
AEMO publishes Market Notice 83206 – status update on repair to damaged Heywood transmission line
AEMO Market Notice 83206 today notifies the broader market of the rectification work on the Heywood transmission (damaged 13 months ago) to be conducted from Friday morning this week.
Next domino? Yallourn closing in 2028 … four years earlier than original plan.
Two initial thoughts, following EnergyAustralia's announcement that they will close Yallourn Power Station four years earlier than initially planned (mid-2028).
Marcelle Gannon to share insights (this Thu 11th March 2021) at CEC Large-Scale Solar Forum
Here's three key insights to listen for this Thursday ... when Marcelle Gannon speaks at the CEC's Large-Scale Solar (virtual) Forum.
Will the traditional ‘Peak’ contract be another casualty of this Energy Transition?
Prompted by several different conversations offline in early 2021, I've taken a quick look at what have been traded volumes (on ASX) of the traditional 'PEAK' hedge contract for the NSW, QLD, VIC and...
Report ‘Fast Erosion of Coal Plant Profits’ prompts questions
A report released this week by Green Energy Markets and the IEEFA exploring the prospect of accelerated coal closures, has itself caused some ripples...
High temperatures drive QLD Scheduled Demand to 9,476MW (highest this summer, so far)
Monday 22nd February 2021 saw QLD Scheduled Demand rise higher than it has on any other day so far this summer ... 576MW below the all-time maximum.