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...
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.
Spot Price volatility in QLD and NSW on Friday 26th May 2023
Continuing the recent run of volatility in QLD and NSW, another bout (albeit shorter) on Friday 26th May 2023.
Vedran’s note today, about ‘more wind than hydro in Tasmania’ for early morning Thursday 25th May 2023
Prompted by a LinkedIn update by Vedran Kovac (at Hydro Tasmania) we've taken a quick look at the supply mix in Tasmania during the current week.
Spot market volatility on Thursday 25th May 2023 (and Actual LOR2 in NSW)
The sun's gone down on Thursday 25th May 2023, and prices have spiked (as in recent days).
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.
IRPM drops below 15% on Tuesday 23rd May 2023
A short article this evening noting IRPM has dropped below 15% on a NEM-wide basis (a tight supply-demand balance).
AEMO’s MMS 5.2, ez2view v9.7, Semi-Scheduled MaxAvail in the Bid, and a self-forecasting example
Today (Tue 23rd May) is the go-live date for AEMO's EMMS v5.2 - which will contain new data for some market enhancements. Here's a quick look at where...
Evening volatility in QLD and NSW on Saturday 20th May 2023
A short article to mark an evening burst of volatility in QLD and NSW, with VIC1-NSW1 again constrained.
Brief burst of volatility in QLD and NSW on Wednesday 17th May 2023
A short article to record evening price volatility in NSW and QLD on Wednesday 17th May 2023
We’re not building enough replacement dispatchable capacity
With completion of GenInsights Quarterly Update for Q1 2023 approaching, and following some conversations recently (and probably this week at EUAA Conference) here are two charts looking backwards...
NEMwide IRPM drops below 15% (at 17:55) on Wednesday 10th May 2023
The IRPM has dropped below 15% across the NEM on Wednesday 10th May 2023 ... first time this has happened since the stressful winter 2022.
Currently forecast LOR2 for South Australia for Wednesday 10th May 2023
A first look at a forecast for tight supply-demand conditions for South Australia on Wednesday 10th May 2023.
AEMC publishes Rule Determination for amending the (earlier published) IESS Rule
A short, belated (and back-dated) article about the change to the original IESS Rule.
A spike at 16:15 hints at volatility to resume in SA with the sun setting, on Thursday 4th May 2023
A second article today about volatility in South Australia
AEMO preliminary report on VIC region suspension (loss of SCADA) on 22nd April
Here's where to find AEMO's preliminary report on the loss of SCADA on 22nd April 2023 in Victoria that led to that region being suspended for more than...
Morning volatility in South Australia on Thursday 4th May 2023
The South Australian price has been bouncing up above $10,000/MWh on Thursday 4th May 2023
A second (still rushed) look at volatility in NSW very early on Monday 1st May 2023 … a possible snag with Liddell retirement from market data systems?
Taking a second look at the very early morning volatility in the NSW region on Monday 1st May 2023, we've used the 'Constraint Dashboard' widget in ez2view to...
Spot price volatility in NSW and SA on Monday 1st May 2023
A very quick look at separate bouts of volatility on Monday 1st May 2023 - firstly in NSW and then later in South Australia.
Relatively low wind harvest through Sunday 30th April is a reminder of challenges in the energy transition
A quick article on Sunday evening to highlight the difference between sunlight hours and darkness hours in terms of pricing patterns today (the weekend following the closure of...