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.

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. 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. 1980, 1992 CNG Initiatives
 Low Power
 3,000 PSI
 Conversions
 Slow-Fill Station
 Short Range

4. CNG Equipment
21 Refuse Packers w/Plows
22 more Refuse Packers on Order
5 Cargo Vans
3 Mid-Size Cars

5. CNG Snow Plowing since 2010

6. CNG Fueling Stations
 Compressor drives both public and City access
 Dual 250 Hp electric motor driven compressors
 Two 3-stage storage cascades

7. CNG Fueling Stations
 Front – Public Access
 3000 / 3600 PSI
 Credit card access only
 Open 24/7

8. CNG Fueling Stations
 Rear – City Access
 3600 PSI
 Employee card access
 RFID or Mag-Stripe

9. CNG Fueling Stations
 Slow-Fill
 16 Vehicles
 Block Heaters
 Sequential Fill

10. CNG Problems
 Leaks at Cascades
 O-Ring
 Relief Valves
 Leaks in Systems
 Relief Valves
 ESD Switches
 Connected Drive-Offs

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. Thank You!