Horizon Net Zero Dawn â keynote slides by Ben Abraham
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Alternative fuels workshop focuses on electric, natural gas, propane vehicles
1. Alternative fuels, strategies and technologies
Alternative Fuels
Workshop
Jackson, WY
Teton County Public Library
Friday, April 17th
10:00am-2:00pm
2. Alternative fuels, strategies and technologies
Welcome
10:00 - Welcome and Coalition Background: Alicia Cox, Yellowstone-Teton Clean
Energy Coalition
10:15 - Propane: Larry Osgood, Consulting Solutions, Rocky Mountain Propane
Association
11:00 - Biodiesel-Tad Pearson, Idaho National Laboratory
11:45 - Lunch
12:15 - Electric Vehicle (EV) presentation: Matthew Shirk, Idaho National
Laboratory
1:00 - Compressed Natural Gas: Tracey Hind
1:45 - Closing and head to parking lot to look at vehicles
3. Alternative fuels, strategies and technologies
Coalition Mission
Mission: To displace the use of petroleum in the
regional transportation sector, improve air quality
through reduced harmful exhaust emissions, and
increase energy security and sustainability
4. Clean Cities
Coalitions
⢠Nearly 100
coalitions
throughout the
United States
⢠660,000
AFVs using
alternative
fuels
* Total includes more than 16,000 electric charging sites.
5. Alternative fuels, strategies and technologies
Why
Clean Cities advances the nation's
â˘economic
â˘environmental and
â˘energy security
by supporting local actions to reduce
petroleum consumption in transportation
6. Alternative fuels, strategies and technologies
Alternative and Renewable
Fuels
⢠Biodiesel
⢠Electricity
⢠Ethanol (E85)
⢠Hydrogen
⢠Natural gas
⢠Propane
Fuel Economy
⢠Fuel efficient vehicles
⢠Driving habits
⢠Vehicle maintenance
How
7. Alternative fuels, strategies and technologies
How
Idle Reduction
⢠Technologies
⢠Behavioral changes
Trip Elimination
⢠Telecommuting
⢠Ridesharing
8. Alternative fuels, strategies and technologies
Strategies
⢠Connecting fleets and individuals with fuel
providers, technical information, case
studied and training.
11. âan odorless, nontoxic, gaseous mixture of
hydrocarbons-primarily CH4 that comes in
two forms: CNG and LNGâ
Natural Gas
12. Alternative fuels, strategies and technologies
Mixture of Hydrocarbons, Predominantly Methane (CH4)
Basics: What is Natural
Gas?
Images: U.S. Department of Energy, Producing Natural Gas From Shale, http://energy.gov/articles/producing-natural-gas-shale; NREL Image Gallery #06331
13. Natural Gas
Benefits
⢠Abundant domestic
resource
⢠High octane rating
⢠Nontoxic, noncorrosive,
and noncarcinogenic
⢠Lower emissions
⢠Low and consistent fuel
prices
⢠Proven and established
Considerations
⢠Incremental vehicle or
conversion costs
⢠Infrastructure availability
and costs
14. Natural Gas Today
ď§ Around 13 million natural gas vehicles
worldwide
ď§ Natural gas = nearly 25% of the total
energy used in the U.S.
ď§ Residential and commercial usage â
34%
ď§ Industrial usage â 27%
ď§ Electric power production â 31%
ď§ Vehicle fuel â <1%
15. Storage Applications Energy Content
Compressed Natural
Gas
Stored as a gas in
onboard tanks under
high pressure
Light-, medium-, and
heavy-duty vehicles
1 gasoline gallon
equivalent (GGE)
=
5.66 pounds (lb) or
126.67 cubic feet
Liquefied Natural
Gas
Stored as a liquid at
cold temperatures
(-260°F)
Stored in double-
wall, vacuum-
insulated pressure
vessels
Heavy-duty vehicles 1 GGE
=
1.5 gal LNG
CNG and LNG
16. Alternative fuels, strategies and technologies
Original
Equipment
Manufacturer
(OEM)
Vehicles: OEMs
versus Conversions
Aftermarket
Conversions
Prepped
Vehicles
⢠Aftermarket conversions provide additional options
â Must meet federal and state requirements, and be installed by a qualified
system retrofitter (QSR) in accordance with National Fire Protection
Association (NFPA) 52
⢠Vehicles with factory-installed engine prep packages are
converted by a qualified vehicle modifier (QVM) before delivery
to the customer
17. Vehicles
Dedicated: designed to run only on natural gas.
Bi-fuel: have two separate fueling systems that enable them
to run on either natural gas or gasoline.
Dual-fuel: traditionally limited to heavy-duty applications,
have fuel systems that run on natural gas, and use diesel
fuel for ignition assistance.
18. Alternative fuels, strategies and technologies
Vehicles: Applications
Images: NREL Image Gallery #18285, #07351, #17174
25. ď§ Several vehicles connected to a
compressor at one time
ď§ Fueling takes from 1-8 hours
ď§ Intended for commercial and
home fueling
ď§ Vehicle will sit unused overnight
for fueling
Figure 15: CNG fueling pump (left) and
time-fill station (right). Source: NAFTC.
Time-Fill Station
26.
27. ď§ Stores enough CNG that
several vehicles can be
fueled quickly and in
succession
ď§ Takes about five to seven
minutes
Figure 16: Fast-fill public CNG pump. Source: NAFTC.
Fast-Fill Station
29. ⢠Similar horsepower, acceleration, cruising speed as
conventional vehicles
⢠Payload capacity may be compromised, depending on
number and location of fuel storage cylinders
⢠U.S. Department of Energy(DOE) states that CNG-
powered vehicles have about the same level of fuel
economy
⢠LNG is a suitable alternative fuel for vehicles that can
store about 200 gallons worth of GGE in 20 cubic feet
of space, yet remain in motion, such as transit buses
Performance
30. ⢠Excellent safety record due to the properties of the fuel
itself, reliability of fuel delivery system
⢠Natural gas is lighter than air
⢠Does not pool like other fuels
⢠Natural gas has limited range of flammability and will
not burn in concentrations below 5% or above 15%
when mixed with air
⢠Storage cylinders limited to fifteen year life according to
the American National Standards Institute (ANSI)
⢠Visual inspection of cylinder must be completed
every three years
Safety
31. Alternative fuels, strategies and technologies
Other Considerations:
Return on Investment
Tools
afdc.energy.gov/tools
Summarize your vision for where you see the coalition heading during the next 3 years.
All residents and visitors to the Greater Yellowstone Area have access to alternative means of transportation and fuels.
Consider the strategic role that all the Clean Cities portfolio elements can play in making your coalition successful.
Clean Cities activities are implemented by a national network of nearly 100 Clean Cities coalitions.
Led by Clean Cities coordinators, coalitions are comprised of businesses, fuel providers, vehicle fleets, state and local government agencies, and community organizations.
These stakeholders come together to share information and resources, educate the public, help craft public policy, and collaborate on projects that reduce petroleum use.
The boundaries of Clean Cities coalitions cover about 74% of the country&apos;s total population. The green areas on the map are areas covered by a Clean Cities coalition.
Clean Cities coalitions have been instrumental in the deployment of more than 660,00 alternative fuel vehicles.
Â
This slide shows the various technology areas supported by Clean Cities.
Clean Cities coordinators provide stakeholders with unbiased, objective information about these technologies.
Clean Cities is a fuel-neutral program--supporting all EPAct alternative fuels, including: biodiesel, electricity, ethanol, hydrogen, natural gas, and propane.
Clean Cities also supports fuel economy improvements and idle reduction, as well as trip elimination measures, like rideshare and telecommuting programs.
[Provide local examples of projects.]
Conventional Natural Gas
Natural gas is a mixture of hydrocarbons, predominantly methane (CH4). It also contains hydrocarbons such as ethane and propane and other gases such as nitrogen, helium, carbon dioxide, hydrogen sulfide, and water vapor.
Natural gas accounts for over one-quarter of the energy used in the United States. It is used for residential, commercial, and industrial purposes, as well as for electricity generation. Transportation is only a small portion of that.
Conventional natural gas is primarily extracted from gas and oil wells. Gas trapped in subsurface porous rock reservoirs is extracted via drilling. Gas streams produced from oil and gas reservoirs contain natural gas, liquids, and other materials. Also, advances in hydraulic fracturing technologies enables access to large volumes of natural gas from shale formations.
United States has a vast natural gas pipeline distribution system, which can quickly and economically distribute natural gas to and from almost any location in the lower 48 states. [Discussion of local conventional natural gas distribution and availability]
Renewable Natural Gas
Renewable natural gas â also known as biogas, biomethane, swamp gas, landfill gas, or digester gasâis the gaseous product of anaerobic digestion (decomposition without oxygen) of organic matter, such as sewage, animal byproducts, and agricultural, industrial, and municipal solid waste. Most commonly, renewable natural gas is produced from landfills and livestock operations.
Renewable natural gas has all the same benefits as conventional natural gas, plus:
Increased Energy SecurityâBiogas offsets non-renewable resources, such as coal, oil, and fossil fuel-derived natural gas. Producing biogas creates U.S. jobs and benefits local economies.
Lower EmissionsâCapturing biogas reduces emissions by preventing methane release into the atmosphere. Methane is 25 times stronger than carbon dioxide as a greenhouse gas.
Better EconomicsâBiogas reduces the cost of complying with EPA combustion requirements for landfill gas.
Cleaner EnvironmentâProducing biogas through anaerobic digestion reduces landfill waste and odors and produces nutrient-rich liquid fertilizer.
The biogas being produced naturally from these operations is upgraded to purity standards so that it may be used in vehicles or distributed through the existing pipeline system.
Currently a very small portion of natural gas is produced from renewable resources. However, this amount continues to increase through research, development, and demonstration projects. [Discussion of local biogas production experiences , if any]
Benefits
Interest in natural gas as an alternative transportation fuel stems from its clean-burning qualities, its domestic resource base, and its commercial availability. Compressed natural gas (CNG) and liquefied natural gas (LNG) have been used for decades to fuel light-duty and heavy-duty vehicles.
Natural gas has a high octane rating and excellent properties for spark-ignited internal combustion engines. NGVs are similar to gasoline or diesel vehicles with regard to power, acceleration, and cruising speed.
It is nontoxic, noncorrosive, and noncarcinogenic and presents no threat to soil, surface water, or groundwater in the case of a leak or spill. If CNG leaks during refueling or elsewhere, there is no need for emergency clean-up due to evaporation. CNG and LNG vehicles can offer life cycle greenhouse gas (GHG) emissions benefits over conventional fuels, depending on vehicle type, drive cycle, and engine calibration. According to the Argonne National Laboratoryâs GREET model, natural gas emits approximately 6% to 11% lower levels of GHGs than gasoline throughout the fuel life cycle. The benefit is even greater for renewable natural gas.
In addition, using natural gas may reduce some types of tailpipe emissions, including nitrogen oxides, particulate matter, and toxic and carcinogenic pollutants, particularly in older diesel vehicles. And because CNG fuel systems are completely sealed, CNG vehicles produce no evaporative emissions.
The price of natural gas on an energy content basis is significantly less than conventional fuels. In addition, in recent years, the price of natural gas is not as volatile as gasoline and diesel. [Current pricing information for the region/area]
Natural gas vehicle technology is proven and established. In 2013, there were 135,000 natural gas vehicles in the United States.
Considerations
The driving range of dedicated NGVs is generally less than that of comparable gasoline and diesel vehicles because, with natural gas, less overall energy can be stored in the same size tank as the more energy-dense gasoline or diesel fuels. Extra natural gas storage tanks or the use of LNG can help increase range for larger vehicles. Bi-fuel vehicles also extend driving range.
The incremental cost of NGVs or the cost of converting a conventional vehicle to run on natural gas can vary, but typically requires an upfront investment that may be paid back during vehicle operation.
Although the United States has an extensive natural distribution system in place, vehicle fueling infrastructure is limited. Therefore, fleets may need to install their own natural gas infrastructure, which can be costly. Finding partners who will commit to use the infrastructure can improve the payback period.
NGVs are available as original equipment manufacturer (OEM) models or conversions. On the light-duty side, Honda and General Motors offer OEM models.
Natural gas vehicle conversions provide alternative fuel options beyond what is available from OEMs. Qualified system retrofitters (QSRs, also referred to as an upfitter or installer) can economically and reliably convert many light- and medium-duty vehicles for natural gas operation. Natural gas engines and fueling systems are also available for some heavy-duty vehicles.
National Fire Protection Association (NFPA) 52 lays out safety requirements for NGVs; it will be discussed further in a later slide.
Conversions can be done on vehicles after they have already been in use. However, some OEMs (e.g., Ford) offer prepped vehicle packages that have the necessary valve train components for CNG operation. The vehicle is then fully converted by a qualified vehicle modifier (QVM) before delivery.
All vehicle and engine conversions must meet emissions and safety standards instituted by the U.S. Environmental Protection Agency (EPA), the National Highway Traffic Safety Administration, and state agencies like the California Air Resources Board (CARB). [Information about relevant state-level conversion regulations]
Vehicle owners and fleet managers interested in pursuing a conversion must work with the conversion manufacturer or an authorized representative. The actual conversion work must be performed by a licensed technician associated with the manufacturer that holds the relevant emissions-related certifications and tampering exemptions. Your local Clean Cities coordinator can help you identify safe and compliant conversion systems and retrofitters.
Many different kinds of fleets successfully deploy NGVs. According to Natural Gas Vehicles for America (NGVAmerica), the stats for the United States as of 2014 are:
More than 83,000 light-duty NGVs
More than 7,500 refuse trucks; it is estimated that more than half of new refuse trucks purchased are NGVs
About 11,000 transit buses, or about 19% of all transit buses in service (according to APTA, http://www.apta.com/mediacenter/pressreleases/2013/Pages/130422_Earth-Day.aspx
5,300 school buses
More than 22,000 medium-duty vehicles in shuttle bus applications and a wide variety of work truck applications, such as short-haul or delivery (http://www.ngvamerica.org/forfleets/index.html)
There is a wide selection of vehicles available from OEMs, conversion companies, and installers that perform conversions. As a reminder, all conversions should be approved by the EPA or CARB, depending on which state you are operating in.
While historically the Honda Civic Natural Gas was the only light-duty OEM NGV available, as of 2014, OEMs are introducing a variety of light-duty NGV options, including pick-up trucks, vans, and passenger cars.
NREL and Argonne Natational Laboratory
NREL and Argonne Natational Laboratory
There are a variety of tools available to calculate NGV emissions, petroleum reduction, and payback. Above are just two examples, the AFDC Vehicle Cost Calculator, which allows users to compare cost of ownership and emissions for most vehicle models, and the AFLEET tool, which calculates a fleet&apos;s petroleum use, cost of ownership, and air pollutant and GHG emissions. The Cost Calculator graph shows one payback scenario for a Honda Civic Natural Gas, versus its gasoline counterpart. The AFLEET graph shows one payback scenario for CNG transit buses, versus their diesel counterparts. Both turn out to be around 6 years. Fleets are encouraged to use these customizable tools to find their own payback.