The Forced Outage Data Working Group (FODWG) was created in April 2005 to address KEMA's recommendations resulting from its review of the methodology and assumptions used in the 2004 minimum reserve level calculations.
The working group engaged ROAM to:
- collect detailed forced outage data from participants.
- undertake a statistical analysis of the data to identify any issues with data quality, provide proposals regarding how these issues should be resolved and review NEMMCO's (now part of AEMO) methodology for the calculation of forced outage statistics.
As a result of ROAM's review, and its own considerations, the working group has drafted a report aimed at providing a framework for future forced outage data collections. This work has been completed and a final report is available. AEMO now considers the recommendations in the FODWG report when collecting forced outage data for generators and using this data in market simulation studies.
As part of the FODWG’s activities a Guidebook for Forced Outage Data Recording was developed. The Guidebook provides generators with a list of definitions and assumptions assumed by AEMO when modelling forced outage rates in reliability and other market simulation related studies. The guidebook also contains a series of examples to aid generators when reporting forced outage events.
The FODWG and AEMO expect that if NEM generators adopt the definitions within the guidebook this will result in a more accurate and consistent forced outage rate data set. Therefore in an effort to improve the quality of the data collected from the generators the FODWG and AEMO request that generators use this guidebook when reporting forced outage behaviour of their plant. A copy of the guidebook is available below.
AEMO intends to refresh the collected data by asking all generators to submit detailed outage data. This collection process is undertaken annually.
AEMO intends to continue to work with the FODWG and the NGF to encourage the provision of consistent and accurate outage data by all generators.
| Guidebook for Forced Outage Data Recording: Definitions and Assumptions 11 Aug 2010 | filename: 0240-0014.pdf |
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| Forced Outage Data Working Group (FODWG) Terms of Reference 30 Oct 2006 | filename: 240-0021.pdf |
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