PS1 update … I had originally written that this was the first ever Market Notice speaking directly to ‘Minimum System Load’.
Belatedly thought it would be worth checking, so searching the past 20 years of Market Notices in that widget inside of ez2view for that exact term, I find an earlier set of Notices from Sunday 31st December 2023:
(a) MN 112936 providing the warning
(b) MN 112942 cancelling the warning
So that essentially makes this notice the second ever warning!
Of interest also might be the article ‘With ‘Minimum Demand’ plunging across mainland regions, AEMO initiates new Market Notices relating to Rooftop PV‘ from 26th September 2021.
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Only have a few minutes this afternoon before another client call, but worth a short note with Market Notice 118421 from the AEMO speaking about ‘Minimum System Load’ forecast for Victoria on Saturday 28th September 2024 (just in time for the AFL Grand Final):
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MARKET NOTICE
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From : AEMO
To : NEMITWEB1
Creation Date : 24/09/2024 14:54:54
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Notice ID : 118421
Notice Type ID : MINIMUM SYSTEM LOAD
Notice Type Description : MSL1/MSL2/MSL3
Issue Date : 24/09/2024
External Reference : Minimum System Load 1 (MSL1) in the VIC Region on 28/09/2024
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Reason :
AEMO ELECTRICITY MARKET NOTICE
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1100 hrs to 1400 hrs 28/09/2024.
Minimum regional demand is forecast to be 1638 MW at 1300 hrs, and the advisory threshold is:
– MSL1 – 1865 MW
– MSL2 – 1365 MW
– MSL3 – 865 MW
MSL events are forecast when forecast regional demand is less than the relevant MSL threshold. The forecast regional demand is below the MSL1 threshold.
Refer to NEM Data Dashboard to monitor demand levels: https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in actions such as recalling network outages, the direction of scheduled production units, curtailment of non-scheduled production units, and/or a direction to maintain regional demand above required MSL threshold, in both Victoria and South Australia.
AEMO Operations
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END OF REPORT
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Basically, this is a new form of alert AEMO has defined to deal with the problem of shoulder seasons (i.e. low Underlying Demand) and gangbusters rooftop PV.
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