1. The Benefits of Full Fuel Cycle Emissions Modeling A Public Interest Perspective
Presented by
Roland J. Hwang
Transportation Program Director
at the
U.S. EPA Workshop on Alternative Fuel Modeling
Louisville, Kentucky
May 26, 1999
2397 Shattuck Avenue, Suite 203
Berkeley, CA 94704
510/ ,

2. Purpose of Full Fuel Cycle Model
Capture full benefits of alternative fuel and advanced technology (high fuel economy) vehicles
Immediate need to guide evaluation of AFV/ATV in development of integrated, least cost solutions to air quality, air toxics, and climate change challenges

3. Policy Uses “Soft” policy guidance, examples
Fleet and individual purchasers
State and federal R&D funding
Inform policy efforts to integrate AQ, GHG, and air toxic goals
“Hard” policy uses, examples
SIP credits
Early action GHG credits

4. Pollutants of Interest
Criteria Pollutants
Upstream impacts
Greenhouse Gases
Need to inform pre-Kyoto actions
e.g., identification of multi-benefit policies, early action credit generation
Air Toxics
Motor vehicles primary contributors

5. Fuels and Technologies of Interest
Advanced Technology Vehicles (ATVs)
Gasoline hybrid electric, high fuel economy
Battery electric and fuel cell vehicles Gasoline additives, low volume blends
EtOH, climate change and air toxics
Alternative Fuel Vehicles (AFVs)
CNG for buses and heavy-duty trucks

6. Key Recommendations Upstream criteria pollutants Air Toxics
Adopt and enhance GREET
Air Toxics
In interim, EPA should develop stand alone module, analogous to PART5
Greenhouse Gases
Need for “official” model to quantify credits and FFC GHG models relatively mature