Callide C3 offline until expected return to service on Monday 26th August 2024
A short initial article, 5 days after Callide C3 came offline again for another forced outage ... during a period that's seen multi-region spot price volatility.
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.
Volatile prices, across all 5 regions, for the 3rd evening in a row
A quick snapshot of evening volatility across the NEM on Wednesday 31st July 2024.
Keep an eye on the Cumulative Price … especially in South Australia
Following recent market volatility, here's a quick look at the current trend of Cumulative Price for each region.
Quarterly Reviews (for 2024 Q2) from AEMO and AER released same day … on Wednesday 24th July 2024.
On Wednesday 24th July 2024, the AEMO and AER *both* published their quarterly reviews of 2024 Q2 ... here are some quick notes for future reference.
Trended NEM-wide % VRE over 12 days in June 2024
A short article in conjunction with GenInsights Quarterly Updates for 2024 Q2, trending NEM-wide % VRE over 12 days in June 2024.
Trended NEM-wide IRPM over 9 days in June 2024
A short article in conjunction with GenInsights Quarterly Updates for 2024 Q2, trending NEM-wide IRPM over 9 days in June 2024.
Will Tasmania see a new all-time maximum demand early next week?
Looking forwards to some tight supply-demand balance (and potentially record-breaking demand) for mornings early next week in Tasmania.
Has the past 7 days seen more Wind Farm output than ever before?
We've clocked over into Friday 26th July 2024 - here's a quick record of how wind yield from Wind Farms across the NEM has been on a sustained high the past week.
Changed (lower) output profile for Kogan Creek from early July 2024
A question from a WattClarity reader prompts this quick article about reduced output at Kogan Creek, and some questions about why.
Tamar Valley CCGT switches off on Tue 23rd July (after running for almost 7 weeks straight)
A quick record of Tamar Valley CCGT coming offline yesterday (Tue 23rd July 2024) after 40 days of solid operations through a low-rain and low-wind winter in Tasmania.
Has the ‘wind drought’ that plagued 2024 Q2 ended?
A quick look (on Sunday 17th July 2024) at recent NEM-wide wind production patterns into 2024 Q3.
Two news updates from CS Energy on Wed 17th July 2024 … the (final) Brady Report (about Callide C4), and the Hartz EPM Report (on the Cooling Towers)
On Wednesday 17th July 2024, CS Energy released the Brady-Heywood report (about Callide C4 failure on 25th May 2021) and the HartzEPM Report (about CallideC3 failure on 31st Oct 2022) ... and an Action...
First operations of any BDU (Wandoan BESS) on Tuesday 16th July 2024
It's day 1 of the CEC's Clean Energy Summit ... perhaps a fitting day to see first operations of a (single unit) bi-directional unit?!
One more delay to Return-to-Service for Callide C4 … another 40 days added to the outage
In the last MT PASA DUID Availability data update for Friday 12th July 2024 the return to service expectation for the repaired Callide C4 unit has been delayed again another 40 days ... now...
Forecast evening IRPM next week healthy … despite ‘ferocious Tasman Low’
A quick look at forecast 'Market Demand' and NEM-wide IRPM for next week ... with Ben Domensino writing about a 'Ferocious Tasman Low to hit southeast Australia next week'
Tamar Valley CCGT clocks over 5 weeks of almost continuous operation at full load in Winter 2024 … but hydro storages still not great
Five weeks on from the re-start of production at Tamar Valley CCGT, it's still running (and water storage levels in TAS are still low).
Final figures for wind production through 2024 Q2
We've ticked over the end of 2024 Q2, so here's a short note to recap the long-range wind production statistics.
AEMO directs load shedding (following unplanned network outages) in NSW on Monday evening 8th July 2024
A short (perhaps initial) record of load shedding instructed for NSW on Monday evening 8th July 2024.
A similar trended view of the aggregate production from Coal-Fired Generation across the NEM through 2024 Q2
Taking the ‘worm line’ cumulative trend recent Q2 periods (used for wind, hydro and gas-fired power), we now apply this to coal-fired generation during 2024 Q2.
A similar trended view of the aggregate production from Gas-Fired Generation across the NEM through 2024 Q2
Taking the ‘worm line’ cumulative trend recent Q2 periods (used for wind and then hydro), we now apply this to gas-fired generation during 2024 Q2. We see two distinctly different patterns ... early in...