KCM&

Proterra

WSTA Vehicle Maintenance

Meeting

October 7, 2014

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

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

BBS, FE & HR

BBS, FE & HR

BBS, FE & HR

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.

BBS, FE & HR

Body Structure

BBS, FE & HR

Composite Body Strength

BBS, FE & HR

Axle Mounts

BBS, FE & HR

Axle Mounts

BBS, FE & HR

ProDrive/Air System

BBS, FE & HR

Pro-drive

BBS, FE & HR

ProDrive/Air System

BBS, FE & HR

BBS, FE & HR

KCM Battery Bus