System Planning

The System Planning project will redevelop AEMO’s current WEM System Planning platforms, processes and  procedures to ensure they are fit-for-purpose for the new market design.  This implementation project is one of the largest in the WEM Reform suite and consists of six work packages: Outage Management, Forecast Integration, Commissioning Tests, Short Term PASA, Medium Term PASA and System Operations Planning Tools.

1. Outage Management
The current outage management mechanism sits on a legacy application. This project will deliver a new outage management interface for Market Participants which will standardise the look and feel and accommodate the changes to outage submissions.

2 Forecast Integration
While the current load forecasting capabilities are largely fit for purpose for the new market design, this project will deliver increased efficiency in forecast production and improved forecast accuracy, visibility, and reporting.

3. ST PASA
Short Term Projected Assessment of System Adequacy (ST PASA) is an assessment of risks to power system security and reliability used by AEMO to identify low reserve conditions in both energy and Essential System Services.  This is conducted daily, examining week-ahead dispatch at 30-minute intervals.  
The current system for Short-Term Projected Assessment of System Adequacy (ST PASA) was designed when there was very little renewable energy or rooftop solar in the generation mix.  A new system will be developed to cater for the volatility of intermittent renewable energy and to work with network congestion in a SCED Market.

4. MT PASA
Medium Term Projected Assessment of System Adequacy (MT PASA) is an assessment of risks to power system security and reliability used by AEMO to identify low reserve conditions in both energy and Essential System Services.  This is conducted monthly, projecting out 3 years at 30-minute intervals.
Similar to the ST PASA system, the current MT PASA system does not cater for the growth in renewable and rooftop generation or the new SCED market, and a new system will be developed to enable a more accurate assessment of system adequacy considering market changes.

5. Commissioning Tests

This project will implement new processes and WEM Procedures for Commissioning Tests supported by a Commissioning Testing platform.

6. System Operations Planning
This project will deliver updates to the dispatch and security analysis toolsets to reflect the evolving power system technology landscape and develop a new interface for submitting and managing market participant’s commissioning plans.

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