electric infrastructure workshop gulf power company january 23, 2006

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Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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Page 1: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

Electric Infrastructure WorkshopGulf Power Company

January 23, 2006

Page 2: 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

Page 3: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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2004 – 2005 Hurricane SeasonWhat We Experienced Damage to our system

Transmission Substation Distribution

Hurricane T&D Material Summary - slide 16

Page 4: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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2004 – 2005 Hurricane SeasonWhat We Experienced Damage to our system by

Wind Storm Surge Trees Debris Debris Removers Customers

Coastal Damage slides 17 - 26

Hurricane Ivan Maps slides 27 and 28

Page 5: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 6: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 7: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 8: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 9: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 10: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 11: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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)

Page 12: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 13: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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

Page 14: Electric Infrastructure Workshop Gulf Power Company January 23, 2006

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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