How rare are simultaneous price spikes in all five NEM regions, like what we saw last night?
A short examination of some of the over-arching factors at play yesterday evening - where prices spiked above $3,000/MWh in all five regions simultaneously.
Seasonal Record of Events in the Market
Collections of events that we see happening in the NEM, categorised in terms of the seasons in which they occur.
Rare NEM-wide price spikes on Monday July 29th 2024
Already this evening we’ve seen a rare occurrence of price spikes in all five NEM regions simultaneously.
Bout of high prices in SA on Sunday evening July 28th 2024
The South Australian region is seeing a run of high prices, starting just after 6pm this evening.
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.
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).
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.
Unusual wind direction to elevate wind power
Ashleigh Madden of Weatherzone reports on some unusual weather activity scheduled to impact QLD, NSW, and SA wind generation - stemming from a high pressure system moving towards the Tasman sea.
A bounce back: a review of Q2 2024 prices
We just witnessed another eventful Q2, with at least four drivers contributing to significant price volatility. This is our annual review of Q2 prices, where we compare these outcomes against the long-term trend.
ABC report that the highest air pressure ever recorded in Australia was observed this morning, and likely to peak again this Saturday
The ABC report that a notable weather record was broken in Tasmania this morning, and opens questions about future wind lulls and a changing climate.
A running view of the recent wind drought
A view of cumulative total wind production in Q2, highlighting a lack of spatial resource diversity, and the future challenges for gas and long-duration storage.
A similar trended view of the aggregate production from Hydro Discharge across the NEM through 2024 Q2
Taking the ‘worm line’ cumulative trend recent Q2 periods (first used for wind), we now apply this to hydro during 2024 Q2 to see to what extent hydro production volumes are lower than recent...
AEMO publishes ‘East Coast Gas System Risk or Threat Notice’
On Wednesday 19th June 2024 the AEMO has published this ‘East Coast Gas System Risk or Threat Notice’.