KCM & Proterra WSTA Vehicle Maintenance Meeting October 7, 2014
Dec 22, 2015
BBS, FE & HR
Electric Bus Project
Project Goals Could a battery bus replace the 40’ diesel Little or no impact on current service R & D project
BBS, FE & HR
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
BBS, FE & HR
Criteria
Operations Typical layover time: 10 – 15 min Distance per trip: 25 – 30 miles Charging can not interrupt service Minimal driver interaction to recharge
BBS, FE & HR
Routes 226 & 241
These two routes are interlined and operate in a circular pattern between Eastgate P&R and the Bellevue Transit Center. 18.25 mile loop Layover at Eastgate P&R
BBS, FE & HR
Route 221 & 248
Route 221 operates between Eastgate P&R and Redmond Transit Center. 18.9 miles one way Layover at Eastgate P&R Layover at Redmond Transit Center
Route 248 could operate out of Redmond Transit Center
Layover timing with other routes
BBS, FE & HR
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
BBS, FE & HR
Two Battery Philosophies
Long Range Slow Charge Pros & Cons
Operation Maintenance
Short Range Fast Charge Pros & Cons
Operation Maintenance
BBS, FE & HR
Other Section Impacts
Design & Construction On street charging Base charging
Scheduling Change layover locations
Service Development/Planning Other groups?
BBS, FE & HR
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
BBS, FE & HR
Selection
Experience operating battery buses Base infrastructure
Impact operating 25 to 100 buses/base/Rts Impact operating 100 to 250
buses/base/Rts
BBS, FE & HR
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
BBS, FE & HR
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.