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Fairfax County School Bus Diesel Retrofit Project. Fairfax County Department of Vehicle Services April 29, 2004. Background. Air quality non-attainment Prior interest in alternative fuels Grant programs for emissions improvements. Program formulation. Overall objective(s)

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fairfax county school bus diesel retrofit project

Fairfax County School Bus Diesel Retrofit Project

Fairfax County

Department of Vehicle Services

April 29, 2004

background
Background
  • Air quality non-attainment
  • Prior interest in alternative fuels
  • Grant programs for emissions improvements
program formulation
Program formulation
  • Overall objective(s)
  • Components of program
  • Retrofit alternatives
  • Programmatic alternatives
  • Contract solicitation
  • Contract execution
project goals
Project Goals
  • Reduce school bus contribution to air pollution
  • First phase of complete diesel fleet retrofit
  • Concurrent initiatives
  • 2-year project for school buses
  • 5-year window for entire diesel fleet
concept
Concept
  • Replacement of mufflers with diesel oxidation catalysts
  • Reprogram of ECMs on T444E engines
  • Limited number of early demonstrations
candidate technologies
Candidate technologies
  • EPA Voluntary Diesel Retrofit Program “Verified Technologies”
    • Diesel Oxidation Catalyst (DOC)
    • Diesel Particulate Filter (DPF)
    • Fuel treatments
    • Alternative fuels
  • Other technologies accepted by EPA
project structure
Project structure

Contracted retrofit (parts and labor) for all buses with 3 years or more remaining life

  • Reprogramming of predominant electronic engine ECM (T444E)
  • DOC treatment of choice
  • Documentation of processes
procedures
Procedures
  • Two “tasks,” multiple awards possible
  • Offered County work space, or vendor could use own
  • Vendor responsible for bus transport
  • Vendor certifies compatibility and performance
  • Scheduling of buses
other provisions
Other provisions
  • Provided list of bus configurations
  • CDL required for bus movers
  • Evidence of ability to complete work
  • Additional work procedures
  • Minimum number of buses
  • Must bid on all buses in Task
  • Vendor removes scrap
  • County QC audits
  • Documentation of processes
  • Minimum warranty of one year
bid evaluation
Bid evaluation
  • Cost per bus
  • Reductions beyond benchmarks (Task B only)
  • Compliance with specification
    • EPA-accepted
    • No special fuel or additive
    • No additional maintenance
    • Meets minimum emissions reductions
schedule
Schedule
  • Pre-bid conference Feb. 5
  • Awards were made April 2
  • Begin work within 8 weeks ARO
  • 2-year completion goal
current status
Current Status
  • Initial funding approved ($2M)
  • Grant funding (DVP SEP) expected ($1M+)
  • Early demonstrations slow starting
  • Work to begin mid-May to early June
  • Vendors projecting 6 and 10 per day
further information
Further information
  • Contract Administrator:

John Provost, CPPB

John.Provost@fairfaxcounty.gov

703-324-2328

  • Technical representative:

Dave DuVal

Dave.Duval@fairfaxcounty.gov

703-324-3554