Market Notices

AEMO ELECTRICITY MARKET NOTICE

Refer to market notice 93841

AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to reduced numbers of Gladstone units online, the system normal equations have been revised to include below combination.

-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=2, Haughton Syncon status = ON, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Mt Emerald Windfarm to 80% and no limit to other solar farms.

A revision to the constraint equations will be implemented at 1100 hrs on Tuesday 16th August 2022.

The new combinations will be published in a limits advice document on AEMO's website on Wednesday 17th August 2022.
For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice

This advice contains all the combinations for Queensland for system normal cases.

The constraint equations in the Q-NIL set of the form below will be modified:

Q_NIL_STRGTH_CLRSF
Q_NIL_STRGTH_COLSF
Q_NIL_STRGTH_DAYSF
Q_NIL_STRGTH_HAMSF
Q_NIL_STRGTH_HAUSF
Q_NIL_STRGTH_HAYSF
Q_NIL_STRGTH_KEP
Q_NIL_STRGTH_KIDSF
Q_NIL_STRGTH_MEWF
Q_NIL_STRGTH_RUGSF
Q_NIL_STRGTH_RRSF
Q_NIL_STRGTH_SMSF
Q_NIL_STRGTH_WHTSF

AEMO Operations

AEMO ELECTRICITY MARKET NOTICE

In accordance with Market notices 99065 and 99070, the zero ancillary services prices to TIs 0805 - 0900 on 23 June 2022 for all services in all regions have been replaced with the corresponding ROP values for each TI, service, and region.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

AEMO has been working with ElectraNet on a review of the oscillatory stability limits for the Para SVC outage for flows from South Australia to Victoria.

From that review the these limits from SA to Vic have been increased by 50 MW. The limit on Heywood has changed to 470 MW and for Heywood + Murraylink to 620 MW when the oscillatory stability monitoring is in service. If oscillatory monitoring is not in service the 50 MW increase will not apply.

The revised constraints were implemented in the constraint set S-PA_VC1 at 1300 hrs Friday 24th June 2022:
S:VS_PASVC_570OSC_AT
S:VS_PA_SVC_620
S:V_PASVC_420OSC_AT
S:V_PA_SVC_470
SV_470_DYN

AEMO and ElectraNet are continuing their studies on the limits for the Para SVC outage to determine if further increases can be made.

For further details on this this change please contact ben.blake@aemo.com.au

Ben Blake
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE
Declaration of electricity market resumption

Refer initial AEMO Electricity Market Notice 97704

AEMO declares that the suspension of the spot market in New South Wales, Queensland, South Australia, Tasmania and Victoria will end at 1400 hrs on 24 June 2022.


Relevant Market Notices issued under this suspension:
97704 and 98805
Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - Market suspension - FCAS prices

Refer to Market Notice 99070

AEMO has determined that there is no basis on which the published ancillary service prices for TI 0405 to TI 0800 on 23 June 2022 can be substituted, and accordingly the published ancillary service prices for those TIs in all regions will stand.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to Market Notice 99065

AEMO has been publishing the correct ancillary service prices for all services in all regions of the NEM since TI 0905 hrs 23 June 2022.

Ancillary service prices will be substituted with the unmodified NEM price published in AEMO databases as "ROP" for each market ancillary service in each region, notwithstanding the issue of autogenerated market notices to the contrary, from TI 0805 to TI 0900 on 23 June 2022 inclusive.

TI 0405 to TI 0800 on 23 June 2022 remain under consideration.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0830 hrs on 23 June 2022

Refer to Market Notice 99063.

AEMO determined that manifestly incorrect inputs are currently applying in relation to the determination of ancillary service prices.

Ancillary service prices will be substituted with the unmodified NEM price published in AEMO databases as "ROP" for each market ancillary service. This will be applied for all ancillary service prices in every region notwithstanding the issue of autogenerated market notices to the contrary from at least TI 0805 until further notice.

TIs from 0405 on 23 June 2022 remain under consideration.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - Market suspension - FCAS prices

Refer to AEMO Market Notice 98805

AEMO has been publishing zero FCAS prices for all services in all regions of the NEM from 0400 hrs 23 June 2022, after reverting to dispatch pricing during the current market suspension.

AEMO is investigating the problem urgently.

Energy prices are unaffected and are being published correctly.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE
Electricity market suspension change of pricing regime
Refer initial AEMO Electricity Market Notice 97704

The Spot Market remains suspended in the following regions with the following pricing regimes from Trading Interval 0405 hrs on 23 June 2022 until further notice:
New South Wales from Market Suspension Schedule Pricing to Dispatch Pricing (refer NER clause 3.14.5(d))
Queensland from Market Suspension Schedule Pricing to Dispatch Pricing (refer NER clause 3.14.5(d))
South Australia from Market Suspension Schedule Pricing to Dispatch Pricing (refer NER clause 3.14.5(d))
Tasmania from Market Suspension Schedule Pricing to Dispatch Pricing (refer NER clause 3.14.5(d))
Victoria from Market Suspension Schedule Pricing to Dispatch Pricing (refer NER clause 3.14.5(d))



Relevant Market Notices issued under this suspension:
97704
Manager NEM Real Time Operation