Electric Utility Infrastructure Florida Public Service Commission Workshop Paul Davis, Director Energy Control Center Tampa Electric Company January 23, 2005

1 Overview Summary 2004 and 2005 storms Restoration process Vegetation management and pole inspections Mitigation options

2 Hurricanes experienced in 2004 Hurricane Tracks Charley: mph5 hours Aug. 13, 2004 Frances:46-81 mph40 hours Sept. 5, 2004 Ivan mph00 hours Sept. 15, 2004 Jeanne75-92 mph31 hours Sept. 26, 2004 Maximum Sustained Winds Duration

Hurricanes

and 2005 Hurricane Damage System Damage – 2004 Hurricanes Significant restoration/outages Low distribution system failure rates (<1%) Minor substation damage Total restoration costs approx. $75M $116/customer outage System Damage – 2005 Hurricanes Minor wind damage from Dennis, Katrina & Wilma Total restoration costs - less than $1M

5 Restoration Mutual assistance Post-storm sweep Repair/replace practice Temporary repairs Observations Process changes/modifications

6 Vegetation Management and Pole inspection Annual program Storm response

7 Potential Mitigation Options Inventory System enhancements Maintenance practices Vegetation management Hardening options Undergrounding Standards