Natural Gas Vehicles’ Emission Brief
• Unlike natural gas engines, the latest diesel engines
only meet the “Near-Zero” standard of 0.2 grams/brake
horsepower when traveling at constant speeds above forty
miles per hour.
NOx Emissions by Speed
Make a Bold Impact on Air Quality Today
• NGVs produce two hundred times less NOx when
accelerating than their diesel competitors.
More than 50% of Americans are exposed to unhealthful levels of ozone and particulate pollution, putting them at greater risk for
Emissions
Speed
asthma,
lung cancer,
disease,
and
premature
Mitigation
Trust by
fund
• According
to thecardiovascular
California Air Resources
Board
(CARB),
this death. Volkswagen’s $2.9 billion EnvironmentalNOx
provides
each
state
an
incredible
opportunity
to
make
an
immediate
and
tangible
impact
on
air
quality
by
targeting
mediumand
means that the effective NOx emissions value for the newest
heavy-duty
leading
source
of these
contaminants in almost every metropolitan area.
dieselvehicles—the
engines is actually
twenty
time more
thantoxic
that ofairtheir
NGV counterpart.
• Emissions
more severe(NGVs)
for vehiclescan
that make
regular
Natural
gasarevehicles
transform
the medium- and heavy-duty transportation sector.
stops, like drayage vehicles and school buses. Resultingly,
NOx emissions from diesel engines are higher in larger cities,
which tend to have lower airTransporta2onFuelPriceForecast
quality.
Make a
Sustainable:
$4.50
Bold ImpactResponsible:
on Air Quality Today
More than
50% the
of Americans
are exposed
to unhealthful levelsDollar-for-Dollar,
of ozone and particulate NGVs
pollution,Deliver
putting them
at greater
for
the
Mostrisk
CostNGVs
Offer
Cleanest
Heavy-Duty
asthma, lung$4.00
cancer, cardiovascular disease, and premature death. Volkswagen’s $2.9 billion Environmental Mitigation Trust fund
$4.50
Effective NOx Emissions Reductions
Truck
Engines
in the World
provides each state an incredible opportunity to make an immediate and tangible impact on air quality by targeting medium- and
$3.50
90
$2016/gallon
$2016/gallon
%
Cle
ane
r
Diesel
Sustainable:
$1.50
Gasoline
$1.00
NGVs Offer
$1.00 the Cleanest Heavy-Duty
Diesel
Gasoline
0.02 $0.50
Truck
Engines
in the World
$.50
per lb of NOx
85
per lb of NOx
per lb of NOx
• Natural gas is a domestically produced product,
Dollar-for-Dollar, NGVs
Deliver thesupply
Most
Costand the large availableElectric
is expected to keep
Diesel
Natural Gas*Natural Gas
Technology Cost
$150,000
Technology
$100,000
Technology
Cost $324,000
Effective
NOx
Emissions
Reductions
prices Cost
low
and stable going
forward.
50
44
47
commercially available model for each application. Funding natural gas
total reduction in NOx emissions.
41
38
35
32
29
26
Gas Engine
23
20
17
Engine
*gasolinegallonequivalent
NOx Reduced
3,810 lbs
NOx Reduced 3,810 lbs NOx Reduced 1,858 lbs
0.0
Source:EIA2017AnnualEnergyOutlook,TableA3-EnergyPricesbySectorandSource
CleanestCertifications
Natural
Comparing
EPA
The calculations shown below assume the deployment of the cleanest
$–Cleanest
$- Diesel Engine
%
$
20
20
20
20
20
20
20
90
20
20
20
Refuse Trucks
EPA NOx Emission Standard
vehicles will lead to the largest
New Ultra-Low
NOxSource:
Natural Gas
Heavy-Duty
Vehicle
Emissions
* Gasoline gallon
equivalent
EIA 2017 Annual Eergy Outlook, Table A3–Energy Prices by Sector and Source
20
0.2
EPA Engine Certification
39
54
Responsible:
NaturalGas*
20
EPA Engine Certification
At 2017
prices,
natural gas costs
per diesel
$4.00
Comparing
EPA Engine
Certifications
heavy-duty
vehicles—the
leading
source of these toxic air contaminants
in almostshown
every metropolitan
area.
The calculations
below• assume
the deployment
of the$2.06
cleanest
gallon
equivalent
(DGE),
compared
to $2.52/
commercially
available
model
for
each
application.
Funding
natural
gas
$3.00
$3.50
0.2
vehicles will lead to the largest total
reduction
in Forecasts
NOx emissions.
gallon
for diesel.
project that this price
$2.50
advantage
will widen going forward.
Natural$3.00
gas
vehicles (NGVs) can transform theShort/Regional
medium- and
transportation
sector.
Haulheavy-duty
Trucks
Transportation Fuel Price Forecast
$2.50
$2.00
$
$• Based on fuel cost savings
$ alone, NGV trucks have
$2.00
a
much
shorter
payback
period than NTDEs.
$1.50
$
140
$
190
Short/Regional
Haul Trucks per lb of NOx
per lb of NOx
Natural gas medium- and heavy-duty engines provide
nmatched
reductions
of
smog-forming
emissions
of
nitrogen
Short/ $
$
• Natural gas vehicles are the most efficient way
xides (NOx). In 2015, a revolutionary natural gas engine
Regional per lb of NOx
per lb of NOx
to reduce NOx in the transportation sector on
was certified by the U.S. Environmental Protection Agency
a per dollar basis.
Haul Trucks
Natural Gas
Diesel
nd California Air Resources Board to a level 90% below the
Technology Cost $300,000
Technology Cost $270,000
Natural
Gas
Diesel
PA’s current
exhaust standard
and
below the cleanest
Reduced
1,417 lbs
NOx Reduced 2,141 lbs NOx
0.02
• Electric-powered
trucks do
not90%
provide
Technology Cost $150,000
Technology Cost $100,000
iesel engine.
A
truck
with
this
engine
has
an
emission
profile
the horsepower or fuel range necessary for
NOx Reduced 3,810 lbs NOx Reduced 1,858 lbs
0.0
quivalentanything
to that
of
aDiesel
heavy-duty
battery
Cleanest
Cleanest
Natural
School Buses
more
than light
loads
for electric
short truck.
Engine
Cle
ane
r
Gas Engine
durations onEPA
flatNOx
surfaces.
Emission Standard
• Even if range and horsepower concerns are
Available:
atural gas medium- and heavy-duty engines
New Ultra-Low NOx Natural Gas Heavy-Duty Vehicle Emissions
39
54
School Refuse
$ Trucks
Buses $per lb of NOx
$
$per lb of NOx
220
140
291
190
313
per lb of NOx
$
85
per lb of NOx
Electric
Technology Cost
Electric
NOx Reduced
$670,000
2,141 lbs
Technology Cost $324,000
NOx Reduced
3,810 lbs
Not Commercially
Available
$
313
per lb of NOx
per lb of NOx
per lb of NOx
provide
discarded, natural gas vehicles still provide
nmatched
reductions
of
smog-forming
emissions
of
nitrogen
NGVs
are
Commercially
Available
more NOx reduction per dollar spent than
xides (NOx).
In 2015,
revolutionary natural gas engine
Natural Gas
Diesel
Electric
their
electric
counterparts.
Today
Across
AllaApplications
was certified by the U.S. Environmental Protection Agency
Technology Cost $148,000
Technology Cost $115,000
Natural
Gas671 lbs Diesel
Electric
NOx Reduced
396 lbs
NOx Reduced
Courtesy of NGVAmerica
nd California Air
Board to a level 90% below the
Qualified
forResources
Funding
Technology Cost $300,000
Technology Cost $270,000
Technology Cost $670,000
PA’s current exhaust standard and 90% below the cleanest
1,417 lbs
NOx Reduced
2,141 lbs
NOx Reduced 2,141 lbs NOx Reduced
NGVs
commercially
available
from traditional
truck OEMs
with
iesel are
engine.
A truck with
this engine
has an emission
profile
Transit Buses
established
sales
service networks.
Retrofittruck.
and repower
quivalent• toReplacing
that ofand
a heavy
heavy-duty
battery
electric
School
Buses
$ way
$ short and long term cost
$ savings.
dutyadiesel
engines
with NGVs is the most effective
to
• NGVs offer
options are
also available
from
variety
of manufacturers.
Conclusions
273
220
reduce NOx, SOx, and Particulate Matter from the transportation sector.
$per lb of NOx
• NGVs
offer significant
CO2 emission
over
diesel engines.per lb of NOx
Applications
Include:
• Heavy Semi
Tractor •reductions
Single Axle
Van
Cement• Mixer
Large Walk
In Van outperform
• School diesel
Bus engines in NOx
Natural Gas •Vehicles
significantly
City Delivery
Truck • Motor Coach
• Shuttle Bus
emissions.
Available:
NGVs
are Van
Commercially
Available
Conventional
• Rack Truck
• Transit Bus
DumpNTruck
•
Refrigerated
Van
Truck
O
R T H W E All
S T GApplications
A S A S S O C I AT I•OTow
N www.nwga.org
Today
Across
Fuel Truck
• Refuse Truck
• Utility Truck
Qualified for Funding
540
291
569
per lb of NOx
• NGVs significantly
$per lb of NOxreduce noise pollution.
Not Commercially
• NGVs offerperlower
long-term
maintenance
costs than diesel
Available
lb of NOx
engines.
• NGV technology already exists, and is ready to go.
Natural Gas
Technology Cost $360,000
Natural
Gas
NOx Reduced$148,000
1,318 lbs
Technology Cost
NOx Reduced 671 lbs
Diesel
Technology Cost
Diesel
NOx Reduced
Technology Cost
NOx Reduced
$300,000
555 lbs
$115,000
396 lbs
Electric
Technology Cost
Electric
NOx Reduced
$750,000
1,318 lbs