KCM

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KCMProterra

• WSTA Vehicle Maintenance
• Meeting
• October 7, 2014

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Electric Bus Project

• Project Goals
• Could a battery bus replace the 40 diesel
• Little or no impact on current service
• R D project

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Electric Bus Project

• Design Expectations
• Heavy-duty transit bus
• Not connected to an external power supply
• Minimal or no interruption to regular 40 service
• Minimal or no interruption to regular base
  maintenance operation

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Criteria

• Operations
• Typical layover time 10 15 min
• Distance per trip 25 30 miles
• Charging can not interrupt service
• Minimal driver interaction to recharge

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Routes 226 241

• These two routes are interlined and operate in a
  circular pattern between Eastgate PR and the
  Bellevue Transit Center.
• 18.25 mile loop
• Layover at Eastgate PR

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Route 221 248

• Route 221 operates between Eastgate PR and
  Redmond Transit Center.
• 18.9 miles one way
• Layover at Eastgate PR
• Layover at Redmond Transit Center
• Route 248 could operate out of Redmond Transit
  Center
• Layover timing with other routes

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Criteria

• Vehicle Maintenance
• Twelve year bus
• No fossil fuels APU, auxiliary heater etc.
• Operate all hotel loads
• Little impact to vehicle servicing
• Base infrastructure requirements

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Two Battery Philosophies

• Long Range Slow Charge
• Pros Cons
• Operation
• Maintenance
• Short Range Fast Charge
• Pros Cons
• Operation
• Maintenance

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Other Section Impacts

• Design Construction
• On street charging
• Base charging
• Scheduling
• Change layover locations
• Service Development/Planning
• Other groups?

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Proposers

• BYD Long range, slow charge
• New Flyer Long range, slow charge
• Proterra Short range, fast charge
• All others dropped out
• Design Line, E-Bus, Nova, Skoda

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Selection

• Experience operating battery buses
• Base infrastructure
• Impact operating 25 to 100 buses/base/Rts
• Impact operating 100 to 250 buses/base/Rts

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Base Charging

• Long Range Slow Charge
• Pro Mileage
• Con Slow charge, 50 KW to 300 KW
• Bus fleet of 100 would need 5 MW to 30 MW
• Impact to service development
• Short Range Fast Charge
• Pros Fast charging, minor base impact
• Cons Limited range, charge station no.
• Impact to service development

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TPI Builds the Body

• Providence, Road Island
• Start with a plug (mold)
• Kits are laid out
• Different sheets of fiberglass, carbon fiber,
  Kevlar balsa wood
• Vacuum sealed and resin is drawn into the
  fiberglass structure.

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Body Structure
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Composite Body Strength
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Axle Mounts
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Axle Mounts
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ProDrive/Air System
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Pro-drive
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ProDrive/Air System
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KCM Battery Bus