1. Electric Vehicle Charging Station Installation Challenges and Operational Management David Worthington Fleet Manager County of Sonoma

2. County Installed EV Charging Stations To Date 37 Charging Stations 17 Fleet Use Only 20 Public 16 Different Sites 6 Fleet Use Only 10 Pubic 74 Charging Ports 34 Fleet Use Only 40 Public Total EV Charging Stations Located in the County To Date 85 Charging Stations 30 Fleet Use Only 55 Public 34 Different Sites 9 Fleet Use Only 25 Pubic 150 Charging Ports 60 Fleet Use Only 90 Public 8 Different Cities or Towns 10 Different Cities and Towns

3. County Planned EV Charging Station Additions 12 Charging Stations 4 Different Sites 24 Charging Ports Fleet Use Only

4. Site Location Choice Public or Fleet Use? Location Needs Assessment Voltage Available Accessibility Infrastructure Costs Vehicle Designs

5. Public or Fleet Use Only Challenges Fleet Use OnlyPublic Accessibility Fee Structure Hours of Operation Ease of Use Vandalism Customer Service Data Tracking Driver Training Sophistication of Equipment Restricting Public Access

6. Fleet Use Only Typically Less Expensive on a Per Station Cost Average Publically Accessible

7. Location Needs Assessment 3 Charging Stations for 2 Spaces?

8. How Much Voltage is Available?

9. How Accessible is the Location?

10. Public Accessibility Consideration In 2009 At One of Our First Sites

11. Same Site in 2013

12. Public Accessibility Challenges Is It a Fueling Station or a Parking Space? Federal -- American with Disabilities Act (ADA) State – Building Codes Local – Permitting

13. Infrastructure Costs Vary Greatly Reasonable Cost of Installation

14. High Cost of Installation

15. 300 Feet of Trenching

16. Through Two Parking Lots

17. How Sophisticated is the Equipment? Do You Need Use Data?

18. Vehicle Design Challenges Charging Port at Left Fender

19. Charging Port at Right Quarter Panel If it is an “Accessible” Station the cord may not be long enough

20. Charging Port in the Front

21. Operational Management Challenges Plugged In? Software Locked? Cord Plugged Into Wrong Socket?

22. Maintenance Challenges Circuit Breaker Turned Off and Forgot to be Flipped Back On……?

23. Maintenance Challenges Curling and Uncurling Cords Every Day?

24. Driver Training….. The Key to Everything…..

25. Public or Employees Using Fleet Only Charging Stations

26. EV Etiquette

27. California Office of Planning and Research Electric Vehicle Infrastructure Guidelines http://opr.ca.gov/docs/PEV_Access_Guidelines.pdf Help? You Are Not Alone in Figuring It Out Plug-In Electric Vehicle Collaborative http://www.evcollaborative.org/ Bay Area Climate Collaborative Collaborative http://www.baclimate.org/

28. Questions? David.Worthington@sonoma-county.org 707-565-2809