1. FORT COLLINS ELECTRIC UTILITY IEEE APRIL 28, 2009

2. Fort Collins Electric Utility FACTS Area – Approximately 53.4 square miles Population - Approximately 137,200 Customers – 63,900 Avg Electric Bill (700kwh)- $50.66 Peak Electric Use – 285.2 MW

3. Fort Collins Electric Utility DATA SHEET Distribution Substations: 6 Underground Cable: 808 Circuit miles Percent of Primary System UG: 99.4% Percent of Services Underground: 98.4% Average System Availability (ASAI)-Percent of time power is on: 99.9981% Average Outage Duration (SAIDI): 10.04 minutes

4. History of Underground Program 1948 - Pilot program to install underground system in 78-home subdivision 1948-1967 - Underground construction at developer option 1968 - Council mandates that all new installations be underground 1969 - Fiberglass vault successfully tested

7. 1986 - Surplus of Reserves

8. 1989- Recommendation to accelerate and expand program to a 15 year program to place all services underground based on: Safety/Liability Reliability Economic Factors Aesthetic Factors

9. Reliability Factors

10. Economic Factors

11. Aesthetics #1

12. Aesthetics #2

13. Aesthetics #3

14. Current Status Program completed in 2006 $1-2 million per year – roughly 2.9% of total budget Have converted 7,200 services at a cost of $25, 425,161 (avg. $3,531 each)

15. Common Obstacles Conflicts with other utilities Conflicts with other City Departments Phone lines still aerial Installation delays after design complete

16. Lessons Learned Conduit backbones no longer used Flowfill used with discretion No longer converted services on demand Shorter time between design and construction Dedicate staff member to design Coordination with other dept/utilities

17. What Worked? Council Support Customer Support Funds Available Increased value to customers Increased reliability – no storm related outages since 2007

26. Questions????