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.
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.
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 (and other notable) years.
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’.
NEM-wide IRPM might be below 15% during evenings the next 3 days… Tue 18th, Wed 19th and Thu 20th June 2024
Following a 90-minute period of low IRPM yesterday evening (Mon 17th June 2024) we take a quick look at see forecast low levels of IRPM for Tue 18th June evening (very low!) and Wed 19th June and Thu 20th June.
Cold temperatures and low wind push NEM-wide IRPM down to 11.76% on Monday 17th June 2024
This evening we are experiencing a tight supply-demand balance NEM-wide, stemming from cold temperatures, and low wind conditions across the southern states.
Gas-fired generation running more strongly in TAS (and Tamar Valley CCGT for the first time) than it has over the past 5 years
Early in June 2024 we see the Tamar Valley CCGT unit running strongly in Tasmania for the first time in just over 5 years … part of the strongest run of gas-fired generation in TAS in a long time.
Reviewing 270 days of bidding at Tallawarra B … following news of delays
Following Colin Packham’s article in the Australian, we take a look in the market data at EnergyAustralia’s Tallawarra B
Snapshot of Monday evening 3rd June 2024
A quick article with a snapshot from NEMwatch at the 18:25 dispatch interval to highlight a couple things we might come back to later.
Aggregate wind production NEMwide ramps up (close to all-time maximum!) to round out an otherwise low-yield May 2024
Unlike the first ~28 days in the month of May 2024, the aggregate production of power from Wind Farms across the NEM has ramped up from late Tuesday 28th May and reached a high point Thursday morning 30th May 2024 only 371MW below the all-time maximum production.
The ‘N::N_CTYS_2’ constraint equation will be invoked for another 11 days … out till Friday 7th June 2024
The AEMO has extended the scheduled invocation of the ‘N-CTYS_3L_WG_CLOSE’ constraint set (which contains the ‘N::N_CTYS_2’ constraint equation – one factor in the outcomes on Wed 8th May 2024).
NEM-wide aggregate wind yield under 500MW on Thursday evening 23rd May 2024
As the sun sets on Thursday 23rd May 2024 (the day of the announcement of the extension to the Eraring service life) we see aggregate wind yield dropping below 500MW.
AEMO publishes a tender for Interim Reliability Reserves (i.e. Reserve Trader)
Following today’s publication of the AEMO has also called for ‘Interim Reliability Reserves’ for summer 2024-25.
Vales Point 6 unit back online earlier than expected … Tuesday morning 21st May 2024
On Tuesday morning 21st May 2024 the Vales Point 6 unit has returned to service, ~2 days earlier than earlier expectations.
Saturday morning wrap of forecast LOR conditions in NSW
Following numerous Market Notices overnight pertaining to Forecast LOR2 (or LOR1) in NSW for a number of coming days, here’s a summary on Saturday morning 18th May 2024 using ‘Forecast Convergence’ from ez2view.
Looking closer at curtailment across wind farms in NSW last Wednesday 8th May 2024
A deeper dive into the geographic spread of wind farm generation and curtailment last Wednesday evening including a look into wind conditions and network topology.
AEMO ‘forecast LOR2’ for Monday morning 20th May 2024 currently growing tighter
An update (via Market Notice at 11:21) on the forecast LOR2 for NSW for Monday morning 20th May 2024.
Some yo-yo action in NSW baseload electricity futures
An update on LinkedIn by an electricity retail broker (Choice Energy) prompts this update on NSW electricity futures price movements.