Green Vehicles Workshop & Showcase
Fleet Experiences and Barriers
Jeffrey A. Tews, CPFP
Fleet Operations Manager
City of M...
Diverse Fleet
 123 different types of equipment,
from aerial lifts to welders
 City of Milwaukee Fleet:
– Diesel units 9...
1980, 1992 CNG Initiatives
 Low Power
 3,000 PSI
 Conversions
 Slow-Fill Station
 Short Range
CNG Equipment
21 Refuse Packers w/Plows
22 more Refuse Packers on Order
5 Cargo Vans
3 Mid-Size Cars
CNG Snow Plowing since 2010
CNG Fueling Stations
 Compressor drives both public and City access
 Dual 250 Hp electric motor driven compressors
 Two...
CNG Fueling Stations
 Front – Public Access
 3000 / 3600 PSI
 Credit card access only
 Open 24/7
CNG Fueling Stations
 Rear – City Access
 3600 PSI
 Employee card access
 RFID or Mag-Stripe
CNG Fueling Stations
 Slow-Fill
 16 Vehicles
 Block Heaters
 Sequential Fill
CNG Problems
 Leaks at Cascades
 O-Ring
 Relief Valves
 Leaks in Systems
 Relief Valves
 ESD Switches
 Connected Dr...
EV Equipment
 1 Plug-In Hybrid Car
– 11,586 miles per year
– Previous gasoline 23.48 mpg
– Current MPG: 277.7
 16 Hybrid...
Thank You!
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Green Vehicles Workshop - City of Milwaukee Presenation

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Jeff Tews from the City of Milwaukee presented on Alternative Fuel Strategic Plans at the 11th Annual Green Vehicles Workshop & Showcase on Tuesday, April 22, 2014.

Published in: Education, Technology, Business
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Green Vehicles Workshop - City of Milwaukee Presenation

  1. 1. Green Vehicles Workshop & Showcase Fleet Experiences and Barriers Jeffrey A. Tews, CPFP Fleet Operations Manager City of Milwaukee Department of Public Works Operations Division, Fleet Services Section
  2. 2. Diverse Fleet  123 different types of equipment, from aerial lifts to welders  City of Milwaukee Fleet: – Diesel units 929 pieces – Gasoline units 1,670 pieces – Propane units 138 pieces – CNG Units 29 Pieces – Non-Fuel units 995 pieces  Annual Fuel Use: – Diesel fuel 1,000,000 gallons/year – Gasoline 600,000 gallons/year – Propane 17,000 gallons/year – CNG 165,000 DGE’s
  3. 3. 1980, 1992 CNG Initiatives  Low Power  3,000 PSI  Conversions  Slow-Fill Station  Short Range
  4. 4. CNG Equipment 21 Refuse Packers w/Plows 22 more Refuse Packers on Order 5 Cargo Vans 3 Mid-Size Cars
  5. 5. CNG Snow Plowing since 2010
  6. 6. CNG Fueling Stations  Compressor drives both public and City access  Dual 250 Hp electric motor driven compressors  Two 3-stage storage cascades
  7. 7. CNG Fueling Stations  Front – Public Access  3000 / 3600 PSI  Credit card access only  Open 24/7
  8. 8. CNG Fueling Stations  Rear – City Access  3600 PSI  Employee card access  RFID or Mag-Stripe
  9. 9. CNG Fueling Stations  Slow-Fill  16 Vehicles  Block Heaters  Sequential Fill
  10. 10. CNG Problems  Leaks at Cascades  O-Ring  Relief Valves  Leaks in Systems  Relief Valves  ESD Switches  Connected Drive-Offs
  11. 11. EV Equipment  1 Plug-In Hybrid Car – 11,586 miles per year – Previous gasoline 23.48 mpg – Current MPG: 277.7  16 Hybrid Cars – 8,119 miles per year – Previous gasoline 23.5 mpg – Current MPG: 36.9  19 Hybrid SUV’s – 8,602 miles per year – Previous gasoline 18.48 mpg – Current MPG: 25.3
  12. 12. Thank You!

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