~13 months later, a GSD2024-inspired review of operations at Cohuna Solar Farm through 2024
We're reviewing a draft of the GSD2024 (release coming soon), and a 9-month outage at Cohuna Solar Farm in 2024 jumped out at us and prompted questions ...
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.
NSW ‘market demand’ climbing (Tuesday afternoon 28th January 2025) but not to extremes
An updated view (at 13:55) of the NSW region on a hot summer's afternoon on Tue 28th Jan 2025.
With heat building, is NSW the one to watch today? (Tuesday 28th January 2025)
A short article looking ahead to the afternoon/evening for NSW on Tuesday 28th January 2025.
QLD ‘Market Demand’ reached 10,897MW on Friday 24th January 2025 (3rd highest day ever)
We’ve checked with NEMwatch in this snapshot for the 18:35 dispatch interval (NEM time) on Friday 24th January 2025 and we see that the ‘Market Demand’ reached 10,897MW...
QLD ‘Market Demand’ passes 10,500MW at 16:45 on Friday 24th January 2025 and is climbing
Contemplating the end of the day, and looming sunset, a quick look at NEMwatch at 16:45 NEM time to see the ‘Market Demand’ at 10,543MW and climbing.
A quick review of Queensland bidding over recent days (incl Wed 22nd Jan 2025)
Whilst we're waiting to see where 'Market Demand' lands for Friday 24th January 2025 (we might report that later), I was curious in terms of supply-side performance of...
Reintroduction of ‘forecast LOR2’ for QLD for Friday 24th January 2025, with strengthening forecast for ‘Market Demand’
An updated view (via ‘Forecast Convergence’ in ez2view) for forecast demand for QLD on Friday afternoon/evening 24th January 2025 ... and reintroduction for 'forecast LOR2'.
A three-day trend of the supply-side ‘Fuel Mix’ in Queensland–Mon 20th, Tue 21st and Wed 22nd January 2025
Here's a 3-day trend chart from ez2view to look at the trended half-hourly* fuel mix in the Queensland region including Wednesday 22nd January 2025.
AEMO cancels ‘Actual LOR2’ for QLD on Wednesday evening 22nd January 2025
Worth a short note to highlight that the AEMO published MN123598 at 19:44 to flag cancellation of 'Actual LOR2' in QLD.
Gladstone unit 2 switches offline, on Wednesday evening 22nd January 2025
One of our ez2view alerts (i.e. the one for ‘coal unit switches off’) configured in the ‘Notifications’ widget triggered at 19:31 (NEM time) on Wednesday evening 22nd January...
How’s Mainland Frequency trending, on Wednesday evening 22nd January 2025?
Given the very tight supply-demand balance in the QLD region on Wednesday 22nd January 2025 (both very low IRPM and also ‘Actual LOR2’) it’s worth a quick look...
AEMO declares ‘Actual LOR2’ in QLD on Wednesday 22nd January 2025
So only seconds after(?) we’ve posted this third article, the AEMO publishes MN123594 at 18:43:09 noting 'Actual LOR2' in QLD on Wed 22nd Jan 2025.
Only 400MW spare (a 4% IRPM) in the QLD-only ‘Economic Island’ on Wednesday 22nd January 2025
Third article this evening (Wed 22nd Jan 2025) as the supply-demand balance in QLD tightens first with the sun setting (so disappearance of Solar PV injections, whilst Underlying...
QLD’s new all-time-maximum ‘Market Demand’ on Wednesday 22nd January 2025 was ~500MW higher than P30 predispatch forecasts
Following from QLD's new all-time-maximum level of 'Market Demand' we take a quick look at actual levels, compared to AEMO's earlier (P30 predispatch) forecasts.
New all-time-maximum ‘Market Demand’ seen in QLD on Wednesday 22nd January 2025
A first quick article (with a NEMwatch snapshot at 17:55) noting the new all-time-maximum level of 'Market Demand' in QLD on Wednesday afternoon/evening 22nd January 2025.
Daytime outage of Bouldercombe to Calliope River (812) in QLD
An ez2view snapshot on Wednesday afternoon 22nd January 2025 with an illustration of the ‘Q-BCCP_812’ constraint set.
Afternoon volatility in NSW, on Wednesday 22nd January 2025
Worth recording a snapshot from NEMwatch at 13:35 (NEM time) on Wednesday 22nd January 2025 with the NSW price up at $14,028.17/MWh.
AEMO notes ‘Pre dispatch demand forecast error’ on Wed 22nd Jan 2025 … second day in a row
For the second day in a row, on Wed 22nd Jan 2025 AEMO has notified about an error in the predispatch demand forecast process.
Ramping constraints in South Australia, with outage on Robertstown – Tungkillo 275 kV line 1 or 2
A short article as a record of ramping constraints bound with reference to network outages in South Australia (and Queensland) on Wednesday morning 22nd January 2025.
Operational snags at Bayswater unit 2
We’d seen Bayswater unit 2 come offline this morning, and wondered if we'd not seen the unit bouncing ON-OFF a few times recently.