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Continued evolution of HDV Greenhouse Gas and Efficiency Policies
Drew Kodjak and ICCT Heavy Duty Vehicle Team
Asilomar Conference UC Davis Transportation and Energy Research Programs August 18 – 21, 2015
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ICCT research DOE Supertruck program Class 8 technology potential and payback Trailers Pickups and Vans (2bs and 3s)
Phase 2 rule proposal Comparison with Phase 1 Engine stringency Accelerate timing
Observations and conclusions
Outline
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ICCT research DOE Supertruck Class 8 “Big Rigs” Trailers Class 2b/3s
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Goal: Demonstrate 50% increase in freight efficiency (e.g., ton-mi/gal) For a given payload, this would approximately result in 10 mpg tractor-trailers
(from 6-7 mpg baseline) Progress to date:
SuperTruck: Tractor-trailer efficiency progress
4 Delgado and Lutsey (2014) The U.S. SuperTruck Program: Expediting the development of advanced heavy-duty vehicle efficiency technologies http://www.theicct.org/us-supertruck-program-expediting-development-advanced-hdv-efficiency-technologies
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Fuel consumption and associated payback periods from selected efficiency technology packages
Meszler et al (2015). http://theicct.org/us-tractor-trailer-tech-cost-effectiveness “Error” bars reflect range of estimates for varying technology cost, fuel price (US EIA AEO 2014 forecast, Low $3.10 to High $5.40 per gallon), and discount rates (3%-10%).
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Mid-term, technologies: 0.5-1 yr payback
Long-term technologies: 1-1.5 yr payback
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Trailer technology cost reductions in recent years (2013-2014 study)
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• Nearly half of all new box trailers are sold with side skirts • Costs of trailer aerodynamic technologies—particularly side skirts— have
decreased substantially in the past 3-5 years
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
$4,500
NAS (2010) TIAX (2009) This Study TIAX (2009) This Study
Skirts Boat tails
Low estimateHigh estimateAverage
26% reduction
70% reduction
54% reduction
Sharpe and Roeth (2014). Costs and adoption rates of fuel-saving trailer technologies http://www.theicct.org/costs-and-adoption-rates-fuel-saving-trailer-technologies
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Pickups and Vans (2bs and 3)
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Phase 2 proposal Comparison to Phase 1 Engine Stringency Accelerate timing
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US HDV Phase 1 vs Phase 2: Overview
Phase 1 Phase 2 (proposed)
Engine Completely separate standard for engine
Separate standard maintained in Phase 2. Reweighted test cycles better reflect real world operation.
Trailers Not regulated Regulated in Phase 2
Transmission Not accounted for under standard protocol
Accounted for through improvements to GEM model inputs or (optional) powertrain test
Vehicle simulation Limited inputs and many defaults
Increased number of inputs including real engine fueling map and transmission information
Vocational vehicles
Three segments, only promoting tire and engine improvements
Increased number of segments (18) based on fuel type, usage profile, and GVW -- to promote additional technologies where applicable
Stringency Weighted ~2%/year 2010-2017 Weighted ~2.8%/year 2017-2027
Real world testing Not included Chassis dyno testing on a subset of vehicles to validate standards impact
Natural gas Negligible controls Limit CH4 emissions from engine crankcase and LNG tank
Payback Average payback 12-18 months
Average payback is ~ 2-5 years (Lower for tractors, pickups; higher for vocational vehicles)
ICCT US Phase 2 policy update: http://www.theicct.org/us-phase2-hdv-efficiency-ghg-regulations-policy-update
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Phase 2 Sample Compliance Pathway New tractor + trailer fuel consumption reduction of 34% from 2018 to 2027
Muncrief, R (2015). Parsing Phase 2: Tractor-trailers in the proposed regulationhttp://www.theicct.org/blogs/staff/parsing-phase-2-tractor-trailers-proposed-regulation
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Tractor engine stringency is modest compared to NGOs, Cummins, SwRI, ICCT, WVU, US DOE SuperTruck demonstration data
Key issue: Tractor engine stringency
Phase 1 -6%
Phase 2 -4%
Lutsey (2015). The ever-improving efficiency of the diesel engine http://theicct.org/blogs/staff/ever-improving-efficiency-diesel-engine
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If standards shifted 3 years earlier, and with increased stringency,
GHG and oil benefits would be roughly 30% greater than the proposed Phase 2
US HDV Phase 2: Preliminary assessment of what is in play, potentially
Sharpe (2015). What is at stake in the U.S. truck efficiency rule. http://theicct.org/blogs/staff/what-stake-us-truck-efficiency-rule
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Where are we going?
Global landscape Observations and Conclusions
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US and California are playing an important role in the evolution of global HDV CO2 /efficiency policies
China
Japan Canada
India
EU Brazil Mexico Korea
0
100
200
300
400
500
600
Adopted (2012-2019)
New (2020-2027)
Adopted (2012-2019)
New (2020-2027)
United States Other major markets
Hea
vy-d
uty
vehi
cle
pote
ntia
l wel
l-to
-whe
el C
O2 r
educ
tions
in 2
035
(mill
ion
ton/
year
) ”New” policies are proposed or under development
Source: ICCT Roadmap model: http://www.theicct.org/initiatives/global-roadmap Miller and Façanha (2014). http://www.theicct.org/state-of-clean-transport-policy-2014
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Regulatory action to address CO2 emissions and fuel use from heavy-duty vehicles is accelerating around the world. Japan, US, China and Canada currently have programs while India, Mexico, Korea and
Europe are actively developing programs.
Low volumes of heavy-duty vehicles and engines create economic incentives for global alignment of standards. Global harmonization of regulatory programs is challenging due to diverse vehicle types
and drive cycles, but shared use of simulation models holds promise.
US Phase 2 rule proposal offers significant improvements over Phase 1, but challenges remain. Added grade to simulation modeling, compliance testing, broader application to trailers
and vocational, integrated engine and transmission are all positive improvements. Increased engine stringency and accelerated implementation should be considered by the
Agencies.
Revised ambient air quality standards are likely to add pressure for further reductions of NOx emissions from heavy-duty vehicles.
Observations and conclusions
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US EPA and NHTSA pages http://www.epa.gov/oms/climate/regs-heavy-duty.htm http://www.nhtsa.gov/fuel-economy
ICCT US HDV resource page: http://theicct.org/policies/us-heavy-duty-vehicle-standards
ICCT US HDV Phase 2 policy update: http://theicct.org/us-phase2-hdv-efficiency-ghg-regulations-policy-update
Resources