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Electric Infrastructure Workshop

Electric Infrastructure Workshop. Gulf Power Company January 23, 2006. 2004 – 2005 Hurricane Season Who We Are. Our size Our location and geography Our company affiliation Our communication system. 2004 – 2005 Hurricane Season What We Experienced. Damage to our system Transmission

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Electric Infrastructure Workshop

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  1. Electric Infrastructure Workshop Gulf Power Company January 23, 2006

  2. 2004 – 2005 Hurricane SeasonWho We Are • Our size • Our location and geography • Our company affiliation • Our communication system

  3. 2004 – 2005 Hurricane SeasonWhat We Experienced • Damage to our system • Transmission • Substation • Distribution • Hurricane T&D Material Summary- slide 16

  4. 2004 – 2005 Hurricane SeasonWhat We Experienced • Damage to our system by • Wind • Storm Surge • Trees • Debris • Debris Removers • Customers • Coastal Damageslides 17 - 26 • Hurricane Ivan Mapsslides 27 and 28

  5. 2004 – 2005 Hurricane SeasonWhat We Did • Prior to Hurricane Season • Review and refine the restoration process • Critiques after each storm • Updates of contact information • Lessons learned from other utilities • Communicate storm assignments to employees • Prepare storm kits for each substation • Ensure adequate material stocks can meet needs • Negotiate and confirm contracts with vendors

  6. 2004 – 2005 Hurricane SeasonWhat We Did • Approaching Storm • Execute contracts • Materials • Food/Lodging/Staging/Transportation/Fuel • Electrical and tree contractors • Communicate with customers and local / state officials • Conference call with Southeastern Electric Exchange members

  7. 2004 – 2005 Hurricane Season What We Did • Post Storm • Decentralize the restoration process • Decision making ability is at the substation level • Distribution assessments and restoration begin as soon as it is safe to report to work • Draw upon Southern Company affiliates for assistance as needed • Perform “sweeps” – slide 29

  8. 2004 – 2005 Hurricane SeasonWhat Is In The Future • Underground • Help with vegetative management in right of way • Evolving specifications • Increased data from our mapping system • Distribution Assessment Teams

  9. 2004 – 2005 Hurricane SeasonWhat Is In The Future • Vegetation Management • Pole Inspections • maximize plant facility life • gather information necessary to manage and prioritize needs and resources • minimize unscheduled or emergency maintenance by performance of preventative maintenance • NESC and Specifications

  10. Vegetation Management • Work performed by contractors • Clearance at the time of pruning based on NESC requirements • Program performance indicators • Vegetation SAIDI • Customer satisfaction - justified PSC complaints on tree trimming • Public Safety – number of documented accidents related to vegetation

  11. Vegetation Management (cont.) • Program utilizes a mix of maintenance pruning on entire circuits, targeted spot pruning on portions of circuits, and spot pruning in response to customer call ins. • Annual work plans developed from Forestry Services field inspection data, outage data, customer call ins, and field engineering reports • 100% of transmission field inspected each year – all hazardous situations corrected (i.e., leaning or dead trees)

  12. Distribution Line Inspections • 249,802 wooden poles as of December 2005. • 10 year inspection cycle for all distribution poles • Gulf started its 2nd inspection cycle in 2003. • All poles are inspected using one of the following inspection types: • Visual • Sound and Bore • Partial Excavation • Full Excavation

  13. Transmission Line Inspections • 12 year inspection cycle for all transmission poles and structures • Aerial patrol of system at least 4 times per year • All structures are inspected every 6 years using one of the following inspection types: • Ground Inspection • Wood Ground Line Treatment Inspection • Steel Ground Line Treatment Inspection • Comprehensive Walking Inspection • Comprehensive Aerial Inspection • Routine Aerial Patrol

  14. National Electric Safety Code • Purpose • The NESC is composed of 8 sub-committees, an executive sub-committee, and an accredited standards committee • Member Representation • A new revision is published every 5 years. • Recognized Authority

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