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arbcombo -- Draft Medium- and Heavy-Duty Battery Electric Trucks and Buses Technology Assessment Released for Public Comment

Posted: 14 Oct 2015 13:40:17
The California Air Resources Board (ARB or Board) announces the
release of the draft document “Technology Assessment: Medium- and
Heavy-Duty Battery Electric Trucks and Buses.”  This draft
technology assessment identifies the status of battery electric
vehicle (BEV) technology that can reduce greenhouse gas (GHG) and
criteria pollutant emissions from Class 2b through Class 8
vehicles (gross vehicle weight of 8,501 pounds and up).   

The draft technology assessment discusses BEV components such as
motors and batteries, charging systems, costs, and benefits, and
discusses trucks and buses that are commercially available or in
demonstration stages, including transit buses, school buses,
medium-duty trucks and shuttle buses and heavy-duty trucks. 
Sources of information used in the draft assessment include an
extensive list of published reports, research papers, and
documented conversations with technology experts.  

The draft technology assessment can be viewed and downloaded from
the ARB’s technology and fuels assessment webpage at: 

We encourage interested parties to submit comments on the draft
technology assessment through the technology and fuels assessment
web page for public comments at:
http://www.arb.ca.gov/msprog/tech/techreport/comments.htm.  We
request to receive comments within 30 days of the posting of this
draft assessment, if possible.  

ARB staff will provide an informational update to the Board on
this draft technology assessment, along with the draft technology
assessments for fuel cell and hybrid heavy-duty vehicles, at the
November 19, 2015, Board meeting in Sacramento.  The public
agenda will be available 10 days before the meeting and may be
accessed at:  http://www.arb.ca.gov/board/meetings.htm

If you have questions regarding the draft technology assessment,
please contact Dr. Marijke Bekken, Staff Air Pollution
Specialist, at 916-322-8987, or at Marijke.Bekken@arb.ca.gov.

Background:  California has made substantial progress in reducing
emissions from mobile sources, but further reductions are needed
to meet California’s air quality and climate goals.  These goals

•Meeting 2023 and 2032 ambient ozone air quality standards, which
staff estimates will require a 90 percent reduction in NOx
emissions below the 2010 baseline emission inventory in the South
Coast air basin, with substantial reductions needed in the San
Joaquin Valley and other non-attainment areas of the state as

•Meeting the newly proposed federal ozone standard, which staff
estimates will be even more challenging to attain than the 2032

•Reduce greenhouse gas (GHG)  emissions to 1990 levels by 2020; 

•Achieve a 40 percent reduction in GHG emissions from 1990 levels
by 2030;

•Achieving an 80 percent reduction in GHG emissions from 1990
levels by 2050;

•Reduce petroleum use in cars and trucks by up to 50 percent by
2030; and

•Produce at least 50 percent of electricity from renewable
sources by 2030.  

Heavy-duty vehicles greater than 8,500 pounds emit about a fifth
of the total GHG emissions associated with transportation sources
in the State, which is about eight percent of the statewide
total. In addition, these vehicles account for 33% of NOx
emissions from all statewide sources.  Because trucking emissions
are such a significant source of GHG and criteria pollutant
emissions, achieving reductions within the trucking sector is a
key component in the strategy to meet California’s climate and
air quality goals.

The technology assessments were prepared by staff from ARB, along
with the South Coast Air Quality Management District (SCAQMD)
staff.  They were discussed at workshops in September 2014 and at
the December 2014 ARB board meeting.  More information on the
assessments is available at ARB’s website at
http://www.arb.ca.gov/msprog/tech/tech.htm.  An overview of the
technology assessments was released in April 2014 and is
available on ARB’s website at

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