1166640 - A Multi Vehicle and Fuel Technology Approach to Reducing GHG Emissions from California’s On-Road Transportation Sector

Wednesday, June 29, 2022

1:50pm – 2:10pm PT

Location: Seacliff C

Primary Author(s)

Varalakshmi Jayaram, PhD, CPP

Senior Managing Consultant
Ramboll
Irvine, CA

PDF Slides

Co-Author(s)

JH

Jeremy Horne

Ramboll
SM

Siena Moca

Ramboll
JL

Julia Lester, PhD

Principal
Ramboll
Los Angeles, CA
MW

M. Scott Weaver, QEP, CAPP

Principal
Ramboll Environment & Health
Los Angeles, California
Ryan Condensa

Consultant
Ramboll
SM

Sheetal Madnani

Ramboll
AV

Alek Van Houghton

Ramboll
ER

Emillio Ronquillo

Ramboll
AA

Akshay Ashok

Ramboll

The transportation sector makes up a significant portion of California’s greenhouse gas (GHG) inventory, contributing to 40% of the State’s GHGs in 2019. Reducing emissions from this sector is critical to achieving California’s climate goals. In their proposed Advanced Clean Cars II (ACC II) regulation, the California Air Resources Board (ARB) has proposed sales mandates for light duty vehicles (LDVs) sold in California to be 100% zero emission vehicles (ZEVs) by 2035. As an alternative to the ZEV only proposal, Ramboll evaluated whether there may be other fleet scenarios for light duty vehicles and fuel/charging technologies which could achieve or surpass California’s GHG emission target with less uncertainty relative to transition to an electric only approach. The study considers new and upcoming vehicle technologies such as battery electric vehicles (BEVs) and hydrogen fuel cell electric vehicles (FCEVs), as well as existing proven vehicle technologies such as internal combustion engines (ICEs), hybrid electric vehicles (HEVs), and plug in hybrid vehicles (PHEVs) fueled by low carbon intensity (CI) drop-in fuels. We conducted fleet level modeling of GHG emissions for different vehicle and fuel technology penetration scenarios chosen to provide examples of alternative pathways to achieve GHG emission reductions that would meet California’s climate goals.