building an electric vehicle station network
TRANSCRIPT
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A Case Study – County of Sonoma
Source: Audi
David WorthingtonFleet Manager
Green Fleets RoundtableOakland, CA – October 22, 2014
Building an Electric Vehicle Charging Station Network
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Topics of Discussion
• EV Infrastructure Experience• Vehicle Designs• Electric Vehicle Supply Equipment
(EVSE)• Site Location Choices• Site Design• Costs• Maintenance and Repairs
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Transportation is a Major Source of GHG emissions
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EV Infrastructure Experience
• First Set of Charging Stations Installed in 2008
• Charging Stations Installed to Date– 74 Charging Ports– 37 Stations
• 17 Fleet Use Only• 20 Public• 16 Different Site Locations• 8 Different Cities and Towns
• Future Installations to be Completed by End of 2015– 38 Charging Ports– 19 Stations
• 12 Fleet Use Only• 9 Public• 11 Different Site Locations• 2 New Cities
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County Owned Charge Ports
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Publicly Available Charge Port Locations as of Today
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County Owned Charging PortsEnergy Supplied Over Time
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Vehicle Designs
No Standard for Charge
Point Location on Vehicle Bodies
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Electric Vehicle Supply Equipment
Do You Need Vehicle Use Data?
“Dumb” Chargers “Smart” Chargers
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EVSE Costs
$30$450 30amps
Level 1 Level 2
$1,000 30amps
Level 2
$3,900 30amps
Level 2 DC Fast Charger
$19,000 125amps
DC Fast Charger
$40,000 550amps
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Site Location Choices
• Public or Fleet Use?• Location Needs Assessment• Voltage Availability• Accessibility• Infrastructure Costs• Vehicle Designs
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Site Location Choices Cont…
Fleet Use Only Public
•Accessibility•Fee Structure•Hours of Operation•Ease of Use•Vandalism•Customer Service
•Data Tracking•Driver Training•Sophistication of Equipment•Restricting Public Access
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Publicly Accessible
Fleet Use OnlyTypically Less Expensive on a Per Station Cost Average
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Site Design
• Will the cord reach the vehicle?
• Wall Mount versus Bollard Mount?
• Cellular Coverage or Hard Wired for Data Transmission?
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An Installation in 2009
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Lessons Learned Same Site in 2013
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Public Accessibility Challenges
Is it a Fueling
Station or a Parking Space?
Federal ‐‐ American with Disabilities Act (ADA)
State – Building Codes
Local – Permitting
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Infrastructure Costs
$‐
$5,000.00
$10,000.00
$15,000.00
$20,000.00
$25,000.00
$30,000.00
1 1 1 2 2 2 2 2 3 3 3 6 8
Number of Charging Stations Installed At Each Site
Average Charging Station Site Infrastructure Installation Costs Does Not Include EVSE Costs. 13 Sites, 36 Stations, and 72 Ports
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Infrastructure Costs Cont…
$‐
$10,000.00
$20,000.00
$30,000.00
$40,000.00
$50,000.00
$60,000.00
$70,000.00
1 1 1 2 2 2 2 2 3 3 3 6 8
Number of Charging Stations Installed At Each Site
Total Charging Station Site Infrastructure Installation Costs Does Not Include EVSE Costs
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Infrastructure Costs Vary Greatly
Low Cost Installation
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High Cost of Installation
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….300 Feet of Trenching….
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…..Through Two Parking Lots
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Maintenance and Repairs
Curling and Uncurling Electrical Cords Every Day Results in Wiring Failures
and An Unexpected Maintenance Item to Budget
For
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Maintenance and Repairs Cont…
Has the Circuit Breaker Been Turned Off for Facility Maintenance and Forgot to be Flipped Back On……?
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Help? You Are Not Alone in Figuring It Out
California Office of Planning and Research Electric Vehicle Infrastructure Guidelines
http://opr.ca.gov/docs/PEV_Access_Guidelines.pdf
Plug‐In Electric Vehicle Collaborativehttp://www.pevcollaborative.org
Bay Area Climate Collaborative http://www.baclimate.org
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Questions?
There is a fine line between the “cutting edge and the bleeding edge.”
Sharing information can help minimize the bleeding.
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Contact Information
David WorthingtonFleet Manager
County of Sonoma, California(707) 565-2809