Spring Symposium 2018


Day 1

(download agenda pdf)

8:30 a.m. Registration and Coffee

9:00 a.m. Welcome and Introductory Remarks

    Joan Ogden, Director, STEPS Program

9:10 a.m. Session 1: California Targets 2030-2050 (recap of CCPM3)

    Moderator: Lew Fulton, Co-Director, STEPS

  • Robert Bienenfeld, Assistant Vice President, Environment and Energy Strategy at American Honda Motor Company
  • Michael Coates, CEO, Mightycomm
  • Colin Murphy, Policy Advocate, NextGen Policy
  • Austin Brown, Executive Director, Policy Institute for Energy, Environment and the Economy, UC Davis

10:10 a.m.Keynote: Big Data, Data Analytics and Transport Modeling

Sonia Yeh, Professor, Chalmers University

10:40 a.m. Coffee Break

11:00 a.m Session 2: Grid Integration of EVs

    Moderator: Joan Ogden

  • Grid Impact Modeling for Large Scale Penetration of Zero Emission Vehicles in California
    Behdad Kiani, Assistant Project Scientist, STEPS
  • The Future of Electric Vehicle Emissions in the US
    Alan Jenn, Researcher, Plug-In Hybrid & Electric Vehicle Research Center

  • Daniel Hopper, Senior Manager of Strategy, Southern California Edison
  • Lisa Snapp, Director of the Climate Analysis and Strategies Center, US Environmental Protection Agency

12:15 p.m. Lunch and Poster Session

    STEPS students and researchers present in poster format

2:15 p.m. Session 3: Trucking and Logistics

    Moderator: Lew Fulton

  • Last Mile Delivery and Automated Trucks
    Hanjiro Ambrose, PhD Candidate, UC Davis
  • An Update on California Transition Scenarios
    Marshall Miller, Senior Development, Engineer, STEPS

  • Jimmy O'Dea, Senior Vehicles Analyst, Union of Concerned Scientists
  • Sarah Flick, Corporate Development Manager, Westport Fuel Systems

3:30 p.m. Coffee Break

3:45 p.m. Session 4: Perspectives on Hydrogen Infrastructure Developments

    Moderator: Joan Ogden

  • Stephen Ellis, Fuel Cell Vehicle Marketing Manager, American Honda Motor Company
  • Jean Baronas, Supervisor Hydrogen Unit, California Energy Commission
  • Wayne Leighty, Hydrogen Fuel Business Development Manager, Shell
    Discussant: Robert Wimmer, Director of Energy and Environmental Research Group Toyota Motor North America

5:00 p.m. Day 1 Wrap Up

    Joan Ogden

5:30 p.m. Reception at City Hall Tavern-Bistro 33 (226 F Street, Davis, CA 95616)

Day 2

8:30 a.m. Registration and Coffee

9:00 a.m. Session 5: Three Revolutions (3Rs)

    Moderator: Austin Brown, Executive Director, UC Davis Policy Institute for Energy, the Environment, and the Economy

  • Summary of 3R Conference held February 2018 and other 3R Updates
    Mollie D'Agostino, 3 Revolutions Future Mobility Policy Director, ITS-Davis
  • California Panel Study of Emerging Technologies and Transportation Trends
    Giovanni Circella, 3 Revolutions Future Mobility Program Director, ITS-Davis
  • The Cost of 3 Revolutions: a Deeper Dive
    Lew Fulton, STEPS co-Director

  • Ken Laberteaux, Senior Principal Scientist, Toyota
  • Adam Gromis, Public Policy Manager, Sustainability & Environmental Impact, Uber

10:15 a.m. Coffee Break

10:30 a.m. Session 6: EV Market Update

    Moderator: Gil Tal, Researcher, PHEV Center

  • Comparison of ZEV mandates in California and China
    Yunshi Wang, Director, China Center for Energy and Transportation, ITS-Davis
  • Buyers and Market Demand in California, US and China
    Gil Tal, Research Director, PHEV Center
  • Gender Differences in Plug-in Electric Vehicles Purchasing Patterns
    Ken Kurani, Researcher, PH&EV Center
    Discussant: Kadir Bedir, EV Infrastructure Specialist, California Energy Commission

11:45 a.m. Day 2 Wrap Up and Closing Remarks

    Lew Fulton

12:00 p.m. Boxed Lunch and Adjourn

STEPS Spring Board of Advisors Meeting
May 16 2018
Founders Room
Alumni Center

12:45 p.m. Arrival and Coffee

12:55 p.m. Group Photo

1:00 p.m. Discussion Items

  • STEPS3 wrap up
  • Setting the Stage for STEPS4
    • New sponsorship structure
    • Tower System presentations

3:15 p.m. Concluding Remarks

3:30 p.m. Adjourn


Sonia Yeh, Chalmers University

Sonia Yeh, Chalmers University

Dr. Yeh is Professor in Transport and Energy Systems in the Department of Space, Earth and Environment at Chalmers University in Sweden. Her expertise is in energy economics and energy system modeling, alternative transportation fuels, sustainability standards, technological change, and consumer behavior and urban mobility. Between 2007 and 2014, she co-led a large collaborative team from the University of California Davis and UC Berkeley advising the U.S. states of California and Oregon, and British Columbia, Canada to design and implement a market-based carbon policy (Low Carbon Fuel Standard (LCFS) and Clean Fuel Standard (CFS)) targeting GHG emission reductions from the transport sector. She received Academic Federation Award for Excellence in Research by the UC Davis in 2014 and was appointed as Adlerbertska visiting professor at Chalmers University of Technology in 2015. She served as Fulbright Distinguished Chair Professor in Alternative Energy Technology in 2016-2017.


Fall Symposium 2017




Day 1 Presentations

Drew Kodjak. ICCT. The Prospects for Very Low Vehicles Worldwide

Guido Franco. CEC. Is California’s Energy System Resilient to Climate Change?

Obadiah Bartholomy. SMUD. Climate Readiness in the Capital Region

Joan Ogden. STEPS. Research Ideas: Transportation Fue Infrastructure Vulnerability and Resiliency to Climate Change

Marshall Miller. STEPS. Revised Transition Scenarios for California

Chris Yang. STEPS. Freight Decarbonization Comparison between CA-TIMES and the Truck Choice Model

Andy Burke. STEPS. Energy Storage with Batteries and Supercapacitors

Guozhen Li. STEPS. H2 Refueling Infrastructure for Medium- and Heavy-duty Fuel Cell Vehicles

Mollie D’Agostino.3R Future Mobility Program. Status and Updates at 3R

Giovanni Circella. 3R Future Mobility Program. Adoption of Shared Mobility and Ridehailing in California and Impacts on Use and Other Travel Modes

Lew Fulton. STEPS. The Cost of 3R: A Deeper Dive


Day 2 Presentations

Jeremy Martin. UCS. How Will Biofuel Policies Weather the Storm in DC?

Rob Williams. STEPS. Reporting on STEPS Advanced Biofuels Modeling Cost Study

Julie Witcover. STEPS. LCFS Status Report and Update on LCFS Spreading to Other States and Canada Provinces

Gil Tal. PHEV Center. Modeling the Demand for DC Fast Charging: Have we done it all wrong?

Alan Jenn. PHEV Center. Estimating the Impact of Monetary Incentives on Second Generations PEV buyers

Ken Kurani. PHEV Center. In the Slow Lane: ZEV Markets in California, June 2014 to June 2017


1. Passenger Rail – 2017 Research Update. Raphael Isaac , Paul Erickson

2. The Engine Size Tax and Its Impact on Chinese Automobile Market. Tongxin Xu, Alan Jenn, Erich Muehlegger

3. Hydrogen Demand and Refueling Infrastructure Planning for Medium- and Heavy-Duty Fuel Cell Vehicles in California. Guozhen Li, Joan Ogden

4. Hydrogen Energy Storage for Renewably Intensive Electricity Grids. Zane McDonald, Chris Yang, Joan Ogden, Alan Jenn

5. V2G and G2V smart grid optimization study in a Renewable-Fossil Based Energy System for Northern WECCBehdad Kiani

6. Plug-in Electric Vehicle (PEV) Charging Infrastructure Assessment Overview, Approaches and InsightsSesha Raghavan, Xinwei Li, Joan Ogden, Lew Fulton

7. Comparative Assessment of Geospatial Models for Electric Vehicle Supply Equipment (EVSE) Planning. Xinwei Li, Sesha Raghavan, Joan Ogden

8. Strengthening the inspection and maintenance system of in-use vehicles in India. Jai Malik, Lew Fulton

9. Truck Choice Model. Qian Wang, Marshall Miller, Lew Fulton, Christopher Yang, Joan Ogden

10. Estimating the Potential Demand for Shared Mobility in First/Last Mile Transit Using MTC Travel Demand Model. Miguel Jaller, Caroline Rodier, Elham Pourrahmani

11. Costs of Shared Mobility, Electric Vehicle Integration, Autonomous Vehicle, and Consumer Behaviors in terms of mode and vehicle choicesJunia Compostella, Lew Fulton

12. What Drives Your Drivers: An In-Depth Look at Lyft and Uber Drivers. Rosaria Berliner, Gil Tal

13. Understanding the Factors Affecting Changes in Household Car Ownership in California. Farzad Alemi, Giovanni Circella, Susan Handy, Patricia Mokhtarian

14. What We Know about the Use of Ridehailing: Frequency of Use and Impacts on Other Modes. Farzad Alemi, Giovanni Circella, Susan Handy, Patricia Mokhtarian

15. Trip analysis to determine PEV charging behavior, infrastructure placement, and charging infrastructure policy. Alex Campbell, Gil Tal

16. Plug-in Electric Vehicle (PEV) Infrastructure Planning: Overview, Approaches and Insights. Sesha Raghavan, Xinwei Li, Joan Ogden, Lew Fulton

17. Considerations in the use of supercapacitors in combination with batteries in vehicle applications. Andrew Burke

18. China Low-speed Electric Vehicle Boom. Jinpeng Gao, Daniel Sperling, Yunshi Wang, Gil Tal



STEPS Spring 2017 Symposium

The STEPS team gathered 140 expert stakeholders and presented 2017 research results to date.

Agenda Packet – STEPS Symposium Spring 2017


Day One – May 23, 2017

Alberto Ayala – Keynote_California’s Next Phase of Clean Car and Truck Policies for 2030

Session 1: Heavy-duty Trucks

Marshall Miller – Updates to Decision Choice Model and Summary of Fleet Workshop

Lew Fulton – Zero-Emission Long-Haul Trucking Technologies

Patric Ouellette – Liquid Biofuels for HD Trucks

Session 2: Electric Vehicles

Tom Turrentine – EV Market Update

Ken Kurani – A quasi-experiment in consumer choice of conventional and alternative fuel vehicles

Alan Jenn – A multi-model approach_international electric vehicle adoption

Session 3: Hydrogen

Zane McDonald – Hydrogen Storage for Curtailed Renewable Energy

Andy Burke – Hydrogen Fuel Cell Trucks


Day Two – May 24, 2017

Session 4: Biofuels

Rosa Dominguez-Faus – California Low Emission Truck and Policies and Plans

Julie Witcover – LCFS Status Review

Alissa Kendall – Life Cycle Assessment

Session 5: Mobility

Mollie d’Agostino – 3 Revolutions Policy Initiative Briefs

Miguel Jaller – Sustainable First and Last Mile Transport

Aria Berliner – Life Stage and its relationship with Shared mobility Use (and knowledge)

Lew Fulton – 3R Scenarios Results



1. Four California Rail Scenarios to 2050 – Raphael Isaac

2. The Role of Public Utilities in Transportation Electrification – Nicholas Bowden

3. Travel Time & Cost Savings of a 3 Revolutions Scenario – Dominique Meroux

4. The Cost of Electrifying Transport – Eamonn Mulholland

5. Modal Choice into TIMES – Jacopo Tattini

6. Mid-term Transition for Transportation Hydrogen Infrastructure – Guozhen Li

7. Truck Technology Choice Model Overview – Qian Wang

8. Truck Technology Choice Model More Samples, Indicative Results – Qian Wang

9. Exploring the US Air Fleet – in Use and in the Desert – Guozhen Li

10. Estimating the Impacts of First and Last MileTransit Access Programs

11. Change of Demand for Automobiles with Gasoline Price Changes – Qian Wang

12. Modeling the interactions between EVs for transportation and renewable intensive electric grids in CA and western US – Saleh Zakerinia

13. Spatial regional consumer choice and fueling infrastructure model – Kalai Ramea







STEPS Fall 2016 Symposium


The STEPS team gathered 150 expert stakeholders and presented 2016 research results to date and a preview of 2017 projects.

Agenda Packet – STEPS Symposium Fall 2016


Day One – November 30, 2016

David Ory, MTC – Keynote Travel Behavior, Now and Next
Dan Sperling, ITS-Davis – Session 1 The Three Transportation Revolutions
Lew Fulton, STEPS – Session 1 Three revolutions global project – initial findings
Lew Fulton, STEPS – Session 2 COP-22 Two Degrees and Beyond
Joshua Miller, ICCT – Session 2 iTEM-2 Conference Modeling results: What does it tell us about 2 degree scenarios?
Colin Murphy, NextGen – Session 2 Sub-National Approaches to Sustainable Transportation Policy 
Daniel Scheitrum, STEPS – Session 3 RNG potential in CA: NG as an Enabler of Low Carbon Fuels
Joan Ogden, STEPS – Session 3 Hydrogen compatibility in the NG system
Chris Yang, ITS-Davis – Session 4 California transition modeling update
Kalai Ramea, ITS-Davis – Session 4 Spatial regional consumer choice and fueling infrastructure model


Day 2 – December 1, 2016

Mike Nicholas, PH&EV Research Center – Session 5 eVMT in the household fleet: evidence from year-long data collection of PEV household travel and charging
Gil Tal, PH&EV Research Center – Session 5 Secondary markets for PEVs in California
Andy Burke, ITS-Davis – Session 6 The fuel economy of MD/HD trucks 2015-2050
Marshall Miller, ITS-Davis – Session 6 Update on HDV Scenarios
Jinpeng Gao, ITS-Davis – Session 7 Low-Speed Electric Vehicles in China: Market Boom,
Miguel Jaller, UC Davis – Session 7 Shared Mobility in First/Last Mile Transit Access






    1. Alternative Vehicle Supply and Demand, and the Effects of Government Policy


    1. What Makes Travelers Use Uber: Exploring the Latent Constructs behind the Use of On-Demand Ride Services


    1. A Beginning Look at Rail Scenarios out to 2050


    1. Californian Millennials Drive Smaller Cars:Estimating Vehicle Type Choice of Millennials


    1. 3 Revolutions


    1. Renewable Natural Gas and the LCFS


    1. PHEV Vehicle Performance Simulation and Optimization


    1. BEV Consumer Behavior in Practice: Comparison of BEV Usage to ICE Usage in Multi-Vehicle Household


    1. Electrified Transportation in China


    1. Modeling the interactions between the electric vehicles for transportation and renewable intensive electricity grids in California and the Western US


    1. Modeling and analyzing near term transitions to alternative fueled vehicles using a spatial regional consumer choice and fueling infrastructure model


    1. Long-Term Gasoline Refueling Behavior and its Implication for Building a Hydrogen Refueling Network


    1. Sustainable Hydrogen Fueling/DC Fast Charging Systems at California Highway Rest Stop Areas


    1. The Fuel Economy of MD/HD Trucks 2015-2050


  1. The Biofuel Innovation Tracker

STEPS Spring 2016 Symposium

The STEPS team gathered 150 expert stakeholders and presented 2015 research results and progress on 2016 projects.  We also hosted sessions on peak oil and global EV demand, sustainable trucking, shared mobility and connected and autonomous vehicles, ZEVs in China vs. California, and transition cost scenarios for the U.S. and California.

Agenda-STEPS Spring Symposium June 1-2 2016


Day One

Day Two

Breakout Group Discussions on STEPS 2016 research areas


Session 3 Panel Discussion on Major User Impacts - Shared Mobility and Connected and Automated Vehicles

Session 3 Panel Discussion on Major User Impacts – Shared Mobility and Connected and Automated Vehicles

Contact Beth Bourne, bybourne@ucdavis.edu, with any questions.

STEPS Fall 2015 Symposium (Dec. 2015)

December 10, 2015

Packet: Agenda, Poster List, 2015 Projects, Attendees



STEPS Spring 2015 Symposium