This document discusses Dane County's compressed natural gas (CNG) fleet. It provides information on what CNG and bioCNG are, the financial and environmental benefits of using CNG, and details on Dane County's existing CNG fleet including the types of vehicles and costs of conversion. It also outlines considerations for expanding the CNG fleet further such as fueling infrastructure, maintenance training, and regulatory hurdles. Dane County's strategic plan is to convert most or all of its fleet to CNG and find partners to help with fueling stations and developing bioCNG opportunities.
Measures of Central Tendency: Mean, Median and Mode
Alternative Fuels Workshop & Wisconsin Smart Fleet Recognition Program - Dane County Presentation
1. Dane County CNG Fleet
John Welch, PE
Solid Waste Manager
Dane County
August 19, 2014
2. What is CNG?
•CNG - Compressed Natural Gas (methane)
•Compressed to 3600 psi
•Used as vehicle fuel
What is bioCNG?
•CNG derived from biogas
•WWTP, digesters, landfills, etc
3. Why CNG?
•Financial
–Less than $2.00/gallon
–Less price fluctuation
–Revenue source for landfills
•Domestic Fuel Source
–Security
–Local jobs
•Noise – 80-90% reduction
•Safe
•Environmental Benefits
4. Environmental Benefits
Burns Cleaner
–Vehicle maintenance
–60–90% less smog-producing pollutants
–30–40% less GHG emissions
–Lower carbon intensity
5. Environmental Benefits
Fuel
Carbon Intensity
(gCO2e/MJ)
Gasoline
95.86
CNG from Pipeline
68.00
CNG from Digester
13.45
CNG from Landfill
11.26
http://www.arb.ca.gov/fuels/lcfs/121409lcfs_lutables.pdf
6. Vehicles
•40+ vehicles in fleet
–Some dedicated
–F150s, F250s, F350s,
Ford Fusion, Transit Connect,
Plow Truck
–7 Departments
•Conversion cost
–$8,500 - $13,000 each
–$60,000
7. Vehicle Conversion Options
•Dedicated, bi-fuel, or dual fuel
–Available options & intended use
–Range
–Typical route (return to shop?)
•Direct from manufacturer or OEM conversion
–Available models
–Warranty / service
–Cost
13. Future of CNG in Dane County
•Dane County - 10 yr Strategic Plan
–Convert most/entire fleet to CNG
–Looking for partners – fueling stations
–Looking for bioCNG opportunities