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Tampa Electric Company 2008 Hurricane Season Preparation Briefing

Learn about Tampa Electric Company's comprehensive preparations for the 2008 hurricane season, including infrastructure inspections, maintenance, and repairs, vegetation management, and coordination efforts with government and community groups.

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Tampa Electric Company 2008 Hurricane Season Preparation Briefing

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  1. Presented to the Florida Public Service Commission May 1, 2008 Tampa Electric Company 2008 Hurricane Season Preparation Regan Haines Director Engineering Energy Delivery

  2. Hurricane Preparedness Briefing • System Overview • Inspections, Maintenance and Repairs • Vegetation Management • Coordination with Governmental & Community Groups • Coordination with other Utilities • Pre-Storm Season Activities • Storm Hardening Initiatives • Forensic Data Collection Plans

  3. System Information • Square miles 2,000 • Customers 670,111 • OH Miles of distribution 6,137 • UG Miles of distribution 7,893 • Distribution circuits 734 • OH Miles of trans 1,205 • Transmission circuits 175 • Substations 217 • Distribution poles 312,490 • Transmission poles 26,000 • Joint Attachments 330,239 • Generation (MW) 4,450

  4. Transmission Inspections, Maintenance & Repairs Completed in 2007 • Above ground inspections – 3,909 structures • Groundline inspections – 3,639 structures • Includes performing wind loading analysis on structures with joint use attachments • Wind load screening was performed on 1,013 structures with joint use attachments Identified 565 structures for replacement • 723 structures passed the wind load screening • Comprehensive wind load analysis is in progress on the remaining 290 structures • Replaced 397 structures • Replaced 127 sets of insulators

  5. Transmission Inspections, Maintenance & Repairs 2008 activity • Above ground inspections – 3,784 structures • Groundline inspections – 3,412 structures • Includes performing wind loading analysis on structures with joint use attachments • Wind load screening is estimated to be required on 949 structures with joint use attachments • IR Helicopter Patrol completed • Ground patrols of critical transmission circuits completed by peak of storm season • Remaining transmission circuits patrolled by end of year • Replaced 252 structures • Replaced 33 sets of insulators

  6. Distribution Inspections, Maintenance & Repairs Wood pole inspection program • Performed 49,893 groundline pole inspections in 2007 • Estimated 38,205 groundline pole inspections by Sept 2008 • Includes performing wind loading analysis on structures with joint use attachments • Reinforced 1523 poles and replaced 1536poles in 2007 • Completed 213 maintenance/structural repairs (down guys, anchors, etc.) • Plan to complete engineering by end of 2008 and all repairs by June 2009 for 2008 inspections

  7. Vegetation Management • Transitioning to a three year tree trim cycle for all distribution feeders and laterals • Special emphasis on critical trimming in areas identified by reliability base methodology • All hot spot trimming on high priority circuits completed by peak hurricane season • Trimmed 363 miles of distribution feeder and 945 miles of laterals in 2007 • Transmission system patrolled semi-annually for critical 69kV, 138kV and 230kV circuits

  8. Planning and Coordination with Governmental Agencies – TECO Emergency Management • Hurricane planning with Emergency Operation Centers - ongoing • Hillsborough County EOC 2007 • City of Tampa, City of Temple Terrace, City of Plant City • City of Oldsmar EOC 2007 • Pinellas County EOC 2008 • Polk County EOC 2008 • Pasco County EOC 2008 • Coordination with the Tampa Bay Regional Planning Council and Hillsborough County Hazard Mitigation Group - ongoing • Participation in storm preparedness workshops – ongoing • February 2007 – State Dirty Bomb Drill • March 2007 – US Coast Guard Drill • May 2007 – Unified Command Officers tour Hillsborough County EOC • May 2007 - Hillsborough County Mock Storm Exercise • May 2007 – Hillsborough County ESF3 Mock Storm Exercise • July 2007 – Post Disaster Redevelopment Mock Storm Exercise – Hillsborough County • November 2007 – Florida Catastrophic Planning Workshop

  9. Coordination with Other Utilities & Govts – TECO Emergency Management • EEI Business Continuity (BC) Workgroup • EEI Business Continuity Workgroup • BC Conferences • Supporting EPRI Emergency Management Guidance • Hurricane preparation coordination with local governments and agencies • City of Tampa, City of Oldsmar and Dade City - 2007 • Temple Terrace, Plant City, Auburndale, Lake Alfred, Winter Haven, Mulberry, Eagle Lake, Hillsborough County and Polk County – 2007

  10. Coordination with Other Utilities • Mutual Assistance • Southeastern Electric Exchange • Edison Electric Institute (www.restorepower.com) • Mutual Emergency Material Support (“MEMS”) • Joint Use Audit • Completed 25% in 2007 • Plan to complete 37.5% of system in 2008

  11. Pre-Storm Season Activities • Reviewed, updated and exercised disaster recovery plans • Reviewed, updated and synchronized circuit priorities with Hillsborough County EOC • Conducted mock storm circuit patrol training • Review and order storm material inventory • Conduct mock storm exercise • Storm simulation exercise • Key management personnel • Updated Storm damage model • ED Mock Storm Exercise • May 13, 2008 - • ED Call-out Group • VP ED and direct reports • Functional ED departments • Customer Service • Corporate Communications • Emergency Management • IT, Telecom, Treasury

  12. Hardening Initiatives • Tampa Electric’s 2007-2009 Storm Hardening Plan approved – December 28 • Distribution construction standard - NESC Grade B • 50% stronger than NESC minimum • 2007 Activities • Underground four overhead distribution interstate crossings • Completed most of the engineering design to convert remaining 4 kV circuits to the standard 13 kV • Nine network protectors were tested and inspected • Extreme Wind Pilot Hardening Projects • Completed most of the engineering design Phase 1 Port of Tampa

  13. Hardening Initiatives(cont.) • 2008 Activities planned • Underground four additional overhead distribution interstate crossings • Complete converting 4 kV circuits to the standard 13 kV • Test and inspect six downtown network protectors • Extreme Wind Pilot Hardening Projects • Complete Port of Tampa - Phase 1 • Complete Saint Joseph’s Hospital • Transitioning underground construction standard from mild steel to stainless steel • GIS Go Live in June • Participate in joint research projects with PURC • Selection of wind data collection sites • Vegetation management practices • Evaluate hurricane model and OH to UG evaluation model • Forensic data collection standards

  14. Forensic Data Collection Plans • Consultant under contract to perform forensic analysis • After storm passes, determine geographic areas to be patrolled for damage collection • Consultant will provide written report of findings, analysis, conclusion and recommendation for improvement in system performance

  15. Summary • Inspections • Vegetation Management • Improved Coordination • Training & Pre-Storm Season Activities • Storm Hardening Plans • Forensics Tampa Electric is Prepared for Storm Season!

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