Here’s a short (and belated) article we did not have time to complete yesterday:
1) With respect to a sizeable error in P30 predispatch forecast for ‘Market Demand’ in QLD on Tuesday evening 29th October 2024;
2) That occurred over several sequential runs; and
3) Which was noted by AEMO in two Market Notices during that evening.
Firstly, we utilise a snapshot from the ‘Forecast Convergence’ widget in ez2view at the 08:05 dispatch interval snapshot we prepared yesterday (Wednesday 30th October 2024) highlighting the stark error:
Remember this widget allows one to ‘look up a vertical’ in order to ‘see that other dimension of time’.
The image above we prepared yesterday, but did not have time to publish.
Secondly, useful to copy in the key aspects of the Market Notices for future reference:
________________________________________________________________________________________________
Notice ID 119666
Notice Type ID Subjects not covered in specific notices
Notice Type Description MARKET
Issue Date Tuesday, 29 October 2024 at 19:43
External Reference Pre dispatch demand forecast – Qld region
________________________________________________________________________________________________
AEMO ELECTRICITY MARKET NOTICE
Pre dispatch demand forecast – Qld region
AEMO is aware of an error in the Queensland pre dispatch demand forecast.
AEMO is currently working to resolve the issue.
Dispatch results are not impacted.
Manager NEM Real Time Operations
… then:
________________________________________________________________________________________________
Notice ID 119667
Notice Type ID Subjects not covered in specific notices
Notice Type Description MARKET
Issue Date Tuesday, 29 October 2024 at 21:02
External Reference Update – Pre dispatch demand forecast – Qld region
________________________________________________________________________________________________
AEMO ELECTRICITY MARKET NOTICE
Update – Pre dispatch demand forecast – Qld region
Refer market notice: 119666
The issue relating to the Queensland Pre dispatch demand forecast has been resolved.
Manager NEM Real Time Operations
When we learn from AEMO the cause of the glitch, we also might post this here in a subsequent article.
Have a look at the solar forecast last Monday night 😉