Suspect SCADA drove data discrepancy on 9th December 2024
The incident description in the scheduling error declaration provides us with a glimpse into the underlying cause.
operational glitch
Gremlins in the EMMS upgrade to Data Model v5.5, making ‘the Resurrection of Old Coal’ appear on the cards
On Tuesday 29th April 2024 we noted a glitch in some ez2view widgets stemming from changes in the EMMS triggered by the upgrade process for Data Model v5.5.
Gremlins in AEMO systems publish rogue APC alert for South Australia, Sunday 9th March 2025
Which much attention focused on Queensland (in the wash out that has been TC Albert) a rogue Administered Pricing Notice (MN125439) for South Australia was a head scratcher, on Sunday 9th March 2025.
Last Friday’s large and (mysterious) apparent drop in NSW ‘Market Demand’ (part 3) … what helped restrain frequency?
Friday 31st January 2025 (appeared to) experienced a very large drop in demand in NSW in a single dispatch interval - but we're now suspecting some form of data/operational glitch. However we wonder, if...
Last Friday’s large and (mysterious) apparent drop in NSW ‘Market Demand’ appears some data glitch?
Taking a second look at the (apparent) large drop in NSW 'Market Demand' on Friday afternoon 31st January 2025. Was it a data glitch instead?
‘Market Demand’ in Victoria (apparently!) drops 3,100MW in 5 minutes, on Monday 9th December 2024 … a data glitch?!
No sooner had we hit on the article ‘‘Market Demand’ in Victoria ramps by 903MW in 10 minutes, on Monday 9th December 2024’ than we see an even larger, and faster, ramp down in...
Dispatch systems interruption on 2nd December, 2024
A brief note to record a NEM production systems incident today, December 2, 2024. AEMO declared a major incident (INC0138848) for the Electricity Market Management System service with 4 Dispatch intervals missed. The date...
Interruption to electricity market data on 19 November, 2024
An interruption to the NEM wholesale market data service resulted in a delay of data to industry today, 19 November, 2024.
P30 demand forecast glitch hunches
A brief look into whether rooftop PV forecast were the driver behind the demand forecast glitch on 29 October 2024.
Glitch in P30 demand forecast for QLD on Tuesday evening 29th October 2024
A short (and belated) article with respect to a sizeable error in P30 predispatch forecast for ‘Market Demand’ in QLD on Tuesday evening 29th October 2024;
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.
Brief (55 minute) Market Suspension on 17th March 2023 in NSW due to service interruption of SCADA systems
A just-announced AEMO market notice has declared a temporary suspension of the NSW market.