1. Distribution Circuit Reliability Tool
Draft Only
Distribution Circuit Reliability Tool
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

2. AEP Distribution System
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AEP Distribution System
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

3. What is the Circuit Reliability Tool?
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What is the Circuit Reliability Tool?
A tool to analyze high volume distribution primary outage causes (trees, lightning, animal, and deterioration), and provide circuit segment-level (clearing device) analysis of outage mitigation for these causes.
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

4. Why is the Tool Important?
Draft Only
Why is the Tool Important?
Trees, lightning, animal, and deterioration outages contribute significantly to reliability performance
To identify appropriate expenditure levels and to allocate funding in the most effective manner
To leverage engineering resources by providing useful information to enable greater productivity and better decision making
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

5. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
Applications
Analyze reliability improvement needs
Develop circuit plans (at the clearing device level)
Aid engineer in circuit analysis
Budget development
Identify and support budget level needed to meet reliability goals
Provide basis for comparison to other reliability improvement options
Support long term strategic initiatives
Long term reliability objectives
Multi-year budget forecasts
Regulatory initiatives
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

6. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
Tool Capabilities
Evaluate reliability improvements at a circuit segment level
Identify SAIFI, SAIDI, CAIDI, and CEMI improvements
Determine funding required to achieve a targeted level of reliability performance
Optimize expenditures
Capital
O&M
Total expenditures
Evaluate sensitivity between cost and various reliability improvements (e.g. identify a CEMI ceiling, constrain expenditures, and optimize SAIFI)
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

7. Tool Capabilities (continued)
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Tool Capabilities (continued)
Develop circuit improvement plans
Analyze at a circuit, district, or jurisdictional level
Identify avoided outage costs
Apply weightings for targeted circuits or for circuits with high customer complaints
Flag opportunities for sectionalizing improvements
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

8. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
How the Tool Works
Integrates GIS and outage data at a circuit segment level
Identifies outages by cause in each circuit segment
Uses cost mitigation models to optimize costs and benefits of outage mitigation in each segment
Builds CEMI connectivity logic
Chooses solutions that provide the greatest cost/benefit value, according to the solution parameters selected
Calculates projected reliability performance after mitigation
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

9. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
User Interface
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

10. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
Implementation
Tool implemented 4th quarter 2005:
7 operating companies:
Developing circuit work plans
“Post” evaluation of mitigation work effectiveness
Remaining operating companies implementation planned when GIS to Outage Management System data is matched
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved

11. Confidential and Copyright 2005 AEP - all rights reserved
Draft Only
Questions?
Confidential and Copyright 2005 AEP - all rights reserved
copyright 2004 AEP - all rights reserved