AEMO ELECTRICITY MARKET NOTICE

As per NER 3.7.2 (b), AEMO believes that there has been a material change in the market to issue an additional MTPASA run.

The MTPASA result published on 10 March 2017 shows Low Reserve Conditions (LRC) in South Australia for March 2017, Summer 2017-18, Summer 2018-19, March 2019, and in Victoria for March 2017, Summer 2017-18, Summer 2018-19 and March 2019. AEMO will continue to monitor the situation and take appropriate actions, if necessary.

Although the Portland Aluminium smelter is currently operating at a reduced load, Alcoa Portland Aluminium has not provided AEMO with their load forecasts for the medium term time frame. Hence, AEMO has not updated the MT PASA demand forecast in relation to this.

To view the summary of MTPASA results for the next 24 months, visit AEMO's website on http://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data-dashboard and click on the 'Medium Term Outlook' tab.

This notice supersedes Market Notice 57882 published on 07 March 2017.

Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast capacity reserve conditions over a two year period.
AEMO may apply probabilistic studies such as Energy Adequacy Assessment Projection (EAAP) to confirm the LRC findings of MTPASA before intervening in the market.

For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO website at
http://www.aemo.com.au/-/media/Files/Stakeholder_Consultation/Consultations/Electricity_Consultations/2016/EAAP/Reliability-Standard-Implementation-Guidelines.pdf

Supply Planning
AEMO

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Chalumbin - Woree 876 and 877 275 kV Lines. in Queensland due to Lightning.

Refer to AEMO Electricity Market Notice 57940
There is no longer any Lightning activity in the vicinity of the Chalumbin - Woree 876 and 877 275 kV Lines..
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0505 hrs 10/03/17.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje 7165 and 7166 132 kV Lines in Queensland due to Lightning.

Refer AEMO Electricity Market Notice 57939
There is no longer any lightning activity in the vicinity of the Chalumbin - Turkinje 7165 and 7166 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0505 hrs 10/03/17.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin 857 and 858 275 kV Lines in Queensland due to Lightning.

Refer to AEMO Electricity Market Notice No. 57936
There is no longer any Lightning activity in the vicinity of the Ross - Chalumbin 857 and 858 275 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0505 hrs 10/03/17.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the South Australia Region on 15/03/2017

Refer to the Market Notice No. 57942.

AEMO cancels the previous STPASA Forecast LOR2 condition under clause 4.8.4(c) of the National Electricity Rules for the SA region.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Refer to the Market Notice No. 57937.

The reserve levels in SA region referred in the above market notice have further reduced as detailed below:

AEMO declares a Forecast LOR2 condition under clause 4.8.4(c) of the National Electricity Rules for the SA region for the following period:

From 1500 hrs to 1830 hrs on 15/03/2017.
The contingency capacity reserve required is 350 MW.
The minimum reserve available is 178 MW.

AEMO is seeking a market response.

AEMO will determine the latest time at which it would need to intervene through an AEMO intervention event.

Harmohan Singh
AEMO Operations

AEMO ELECTRICITY MARKET NOTICE.

This market notice is FOR INFORMATION ONLY.

The Moorabool to Tarrone 500kV line in Victoria Region is planned out of service from 0430 hrs on 11 March 2017 to 1700 hrs on 11 March 2017.

During this outage, a credible contingency can separate South Australia region from the rest of the NEM.

Under these circumstances, 35 MW of Raise and Lower regulation FCAS will be sourced from South Australia for the duration of this outage. In addition, consistent with AEMO existing procedures, adequate contingency FCAS lower requirements will also be sourced from South Australia at times when power transfer is from South Australia to Victoria.

The following constraint sets have been invoked for this outage:

F-V-MLTR (includes F-S_LREG_0035 and F-S_RREG_0035)
S-X_BC_CP
V-MLTR
V-MACARTHUR_ZERO

Refer AEMO Network Outage Schedule (NOS) for further details.

AEMO will continue monitoring this proposed outage and will update the Market accordingly.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje 7165 and 7166 132 kV Lines in Qld Region due to Lightning.
Lightning is occurring near the Chalumbin - Turkinje 7165 and 7166 132 kV Lines
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 1455 hrs 09/03/17 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Chalumbin - Woree 876 and 877 275 kV Lines in Queensland due to Lightning.
Lightning is occurring near the Chalumbin - Woree 876 and 877 275 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 1455 hrs 09/03/17 until further notice.

Manager NEM Real Time Operations