
Propane Use for Fleet
Vehicles
Propane:
The #1 Alternative Motor Fuel in the World
Propane, also known as LPG
(liquefied petroleum gas), is the leading alternative fuel in the country.
It is also the nation's third most common vehicular fuel today, after
gasoline and diesel. There are over 270,000 on-road vehicles in the United
States and more than 10 million worldwide that operate on propane (Source:
US Department of Energy, World LP Gas Association). A large number of these
are used in fleets that include light-to heavy-duty trucks, buses, taxicabs,
police cars, and rental and delivery vehicles.
No. of Propane Vehicle in Use in the US 1993-2002
Source: Alternative Fuels Data Center, US Energy Information Administration
Economics
Propane offers fleet operators distinct economic advantages over
conventional fuels (gasoline and diesel). The Battelle Memorial Institute
found that propane is the most economical alternative fuel for fleets (on a
per mile basis) when operating, ownership, and infrastructure costs are all
taken into consideration. Operating costs associated with propane fleets
typically range from 40-50 percent less than those of gasoline fleets
(Source: National Propane Gas Association).
>From an economic perspective, propane is the most cost effective
alternative to conventional transportation fuels when capital costs (vehicle
and infrastructure) and operation and maintenance costs are all taken into
consideration. Of all available alternative fuels, propane offers the best
mix of vehicle driving range, durability and performance.
Infrastructure Costs
The capital structure needed for production, storage, and bulk distribution
of propane for traditional uses already exists. Some additional investments
may be required for automotive uses to accommodate the higher throughput.
The majority of incremental infrastructure costs however, relates primarily
to the expansion of the distribution network.
Existing service station infrastructure used for conventional fuels can be
modified to dispense propane. The additional costs of adapting a station for
propane use is low compared to the requirements for other alternative fuels.
For example, the cost of installing the necessary equipment for dispensing
propane (tank, pump and metering equipment) is about one-third of that for
dispensing CNG (dedicated supply lines, high-pressure compression, storage
cylinders, and special dispensers) (Source: World LP-Gas Association).
Capital Costs
The
majority of propane vehicles on the road today are converted vehicles. The
offerings from OEMs (original equipment manufacturers), although increasing,
are still relatively few. Fleet vehicles can be conveniently converted to
propane use. Conversion costs vary, depending upon the type of original
vehicle and equipment installed. According to the Alternate Fuels Data
Center, factory conversions of light-duty trucks typically cost about $6,000
over the conventional vehicle base price. Conversion costs generally range
from $3,000 to $6,000. Other fees may be applied, such as the cost of EPA
testing and documentation. On the other hand, there may be tax deductions or
other incentives available to offset the up-front capital cost. Some dealers
lease the conversion equipment, which virtually eliminates upfront costs.
Regardless of initial capital costs the
typical ROI (return on investment is less than 18 month).
A significant advantage to fleet owners is the fact that part of the
conversion costs may be deducted from federal taxable income. State and
local tax incentives are also available, and details can be obtained from
local propane dealers, conversion companies, and/or government tax agencies
(see below)
Operating Costs
The upfront costs of propane fleet vehicles can be offset by lower operating
and maintenance costs over the lifespan of the vehicles. The time it takes
for these savings to offset the capital costs (payback period) depends on
vehicle usage patterns but is normally based on the average distance
traveled monthly or annually. Fleet vehicles typically travel long distances
and have very high fuel consumption, so the payback period on propane fleet
vehicles can be very reasonable (12 months or less).
Fuel
Costs
Fuel is the principal operating cost for fleets. On average, a gasoline
gallon equivalent (gge) of propane is generally less than that of gasoline
(Source: US Department of Energy) and federal excise taxes on propane (13.6
cents/gal) are lower than for gasoline (8.4 cents/gal) and diesel fuel (24.4
cents/gal).
Propane can deliver up to 90 percent of gasoline's miles per gallon with
significantly less environmental pollutants. Its fuel efficiency relative to
gasoline surpasses those of all other alternative fuels - 70 percent for
ethanol, 54 percent for methanol, and 21 percent for compressed natural gas
(see chart below).
|
This comparison uses identical vehicles optimized for their specific
fuel. The baseline is a gasoline-fueled vehicle with enough fuel to
travel 100 miles. Distance shown is based on the relative energy
content (British Thermal Units - BTUs) of each fuel gallon. |
|
 |
|
If
all vehicles were fitted with equal volume tanks, propane gas would
require the least fill-ups on a trip, followed by ethanol, methanol
and CNG.
Source: Michigan Propane Gas Association |
Maintenance Costs
Lower maintenance costs are one of the prime reasons underlying propane's
popularity for use in delivery trucks, taxis, and buses. Propane's high
octane rating (104-112 compared with 87-92 for gasoline) and low carbon and
oil contamination characteristics have resulted in documented engine life of
up to three times that of gasoline or diesel engines (Source: National
Propane Gas Association). Many fleets have also reported extended intervals
between required maintenance. Spark plugs from unleaded gasoline engines
typically have to be replaced after 30,000 miles, but those in a propane
vehicle can last 80,000-100,000 miles.
Is this a Good Choice for
your Vehicles
Propane is an excellent
fuel choice for fleet vehicles, which have characteristics that make them
ideal candidates for propane operation. Typical characteristics include:
-
High
fuel usage
-
Significant emissions
-
Urban
locations
-
Centrally fueled
-
Fixed
and/or limited routes
-
Susceptibility to government mandates
-
Special vehicle orders
-
High
public visibility
Fleet
operators do not have to sacrifice performance for environmental
friendliness. The power, acceleration, payload, and cruise speed of
propane-fueled vehicles are comparable to those obtained with equivalent
internal-combustion engines. In addition to its superiority in environmental
benefits, propane is safe, readily available, and makes good economic sense.
Environmentally Preferred
At the top of the federal government's environmental agenda is the need to
reduce air pollution caused by engine emissions. The use of clean-burning
fuels is critical to achieving this goal. Propane is on the Environmental
Protection Agency's (EPA) list of federally approved clean-burning fuels.
Furthermore, propane is contained in a sealed, pressure-tight system at all
times, and there are no evaporative emissions. This eliminates a significant
source of secondary pollution.
Propane is clean burning. Tests conducted by the EPA show that propane
engines produce 60 percent less ozone-forming emissions than reformulated
gasoline. Recent tailpipe emissions tests performed on Orange County
(California) Transit Authority's propane buses showed they emitted 87
percent less total hydrocarbons, 50 percent less nitrogen oxides, and 40
percent less particulate matter than gasoline-fueled buses.
Safe
Propane is nontoxic and nonpoisonous, and has a very small flammability
range (the lowest among all the alternative fuels). Propane vehicle tanks
are tested to four times the normal operating pressures, and the tanks are
20 times as puncture resistant as gasoline tanks. (Source - Puget Sound
Clean Cities Coalition).
Readily Available
More than 90% of all propane used in the US is produced domestically meaning
the revenue from this source of energy
would stay in the USA. There are over 10,000 public propane
refueling stations and an established network of licensed propane conversion
centers throughout the country, and the numbers are growing.
Incentives
Financing is a central issue in the
acquisition of propane fleet vehicles. There is a wide variety of incentives
offered at the federal, state and local levels to encourage the expanded use
of propane vehicles.
Federal Incentives
Clean Fuel Vehicle Federal Tax Deduction
The EPA Act
established an incentive program for the purchase of Alternate Fuel Vehicles
and conversion of conventional gasoline vehicles to alternative fuels.
Through the federal Clean Fuel Vehicle Federal Tax Deduction Program,
companies and private individuals can offset a portion of the incremental
costs associated with the conversion of vehicles or the purchase of an AFV:
-
Tax
deduction is available for the purchase of a new original equipment
manufacturer (OEM) qualified clean-fuel vehicle, or for the conversion
of a vehicle to a clean-burning fuel. Dual-fuel vehicles qualify, but
only the incremental cost associated with the clean fuel will be taken
into account.
-
The
deduction cannot be amortized and must be taken in the year the vehicle
is acquired or the conversion performed. The amount of the tax deduction
is based on the gross vehicle weight (gvw) and type of vehicle.
-
A tax
deduction of up to $100,000 per location is available for qualified
clean-fuel refueling property used in a trade or business.
Clean Fuel Vehicle Federal Tax Deductions
|
Clean Fuel Vehicle |
Criteria |
2002
Maximum Deduction |
2003
Maximum Deduction |
2004
Maximum Deduction |
|
Truck or van |
gvw of 10,000-26,000 lbs. |
$3,750 |
$2,500 |
$1,250 |
|
Truck or van |
gvw more than 26,000 lbs. |
$37,500 |
$25,000 |
$12,500 |
|
Buses |
seating capacity of 20+ adults |
$37,500 |
$25,000 |
$12,500 |
|
All other vehicles |
off-road vehicles excluded |
$1,500 |
$1,000 |
$500 |
The real dollar value of these deductions will
depend upon the depreciation method used and the individual or company's
income tax rate. More information on the tax deductions can be obtained by
calling the Internal Revenue Service at (800) 829-3676 for a free copy of
Publication 535, "Business Expenses," or by contacting Alternative Fuels Tax
Provisions at (202) 622-3110 (ph) or (202) 622-4779 (fax).
The Clean Fuels Grant Program
The Clean Fuels Grant Program was designed to accelerate the deployment of
advanced bus technologies by supporting the use of low-emission vehicles in
transit fleets. The program assists transit agencies in the following areas:
-
Purchase of low-emission buses and related equipment
-
Construction of alternative fuel stations
-
Modification of garage facilities to accommodate clean fuel vehicles
-
Assistance in the utilization of bio-diesel fuel
For
additional information, go to the Federal Transit Administration (FTA) web
sites:
http://www.fta.dot.gov/library/policy/prgms/bbr.html
http://www.fta.dot.gov/library/policy/prgms/cffgp.html
Or contact:
U.S. Department of Transportation (DOT)
Federal Transit Administration (FTA)
400 7th Street, SW, Washington, DC 20590
Phone: (202) 366-4000
Or contact:
U.S. Department of Transportation (DOT)
Federal Transit Administration (FTA)
400 7th Street, SW, Washington, DC 20590
Phone: (202) 366-4000
State and Alternative Fuel Provider Fleets
Program
The Energy Policy Act established the State and Alternative Fuel Provider
Program that requires state and alternative fuel provider fleets to purchase
AFVs as a portion of their annual light-duty vehicle acquisitions. Fleets
earn credits for each vehicle purchased and credits earned in excess of
their requirements can be banked or traded with other fleets. More
information on this program can be found at:
http://www.eere.energy.gov/afdc/incentives_laws.htmlby or by calling
the National Alternative Fuels Hotline at (800) 423-1DOE or (800) 423-1363
or e-mail at hotline@afdc.nrel.gov.
Department of Energy State Energy Program
Under the DOE's State Energy Program, individual states implement
comprehensive State Energy Plans that promote energy conservation, renewable
energy technologies, and reduction of dependence on imported oil. Under
these plans, grants and/or financial assistance are available to accelerate
the use of alternative transportation fuels for government vehicles, fleet
vehicles, taxis, mass transit, and privately-owned vehicles. For more
information click on your state at: http://www.eere.energy.gov/afdc/incentives_laws.html
Department of Energy Clean Cities Program
The DOE's Clean Cities Program coordinates voluntary efforts between local
governments and industries to accelerate the use of alternative fuels and to
expand the AFV refueling infrastructure. For more information, please see
the Clean Cities Web site at
http://www.ccities.doe.gov.
Refueling
Refueling of a propane vehicle involves
filling the vehicle's on-board storage cylinder from a dispenser connected
to a storage tank. Just as propane is stored in the engine fuel tank as a
liquid, it is stored and handled as a liquid at the fuel dispenser. Propane
is pumped from the dispenser storage tank into the vehicle tank. This method
takes the same amount of time needed to refuel a gasoline or diesel vehicle
(about 10-12 gallons per minute.
Propane fleet vehicles generally must return
to their home base for refueling. However, public refueling stations exist
in all states. The cost of building propane fueling stations is similar to,
or lower than, comparable-sized gasoline dispensing systems. Propane
refueling facilities are designed in compliance with nationally recognized
standards and local building and fire codes, and must follow stringent
safety regulations (see Industry Safety Standards).
Number of Propane Refueling Sites

Source:
Alternative Fuels Data Center
The U.S. Department of Energy maintains the most complete alternative fuels
refueling site database in the country. Propane refueling stations
throughout the country can be located using this website: http://www.eere.energy.gov/afdc/fuels/propane_locations.html
Special Information on CNG
(Compressed Natural Gas)
Because many people have
recently been exposed (through the news media) much about this application
we wish to update Fleet Managers considering Propane as to the present
status of CNG. CNG will perhaps join propane as an alternate fuel for
vehicles within the next 5-10 years. Unfortunately CNG isn’t immediately
applicable because there is little or no infrastructure available
(re-fueling stations which are very expensive and require significant
maintenance) and it is extremely expensive to covert existing vehicles.
Instead of converting vehicles to utilize CNG we feel manufacturers will
have to make these vehicles new at the factory. Then as demand for CNG
vehicles increases it will be followed by the construction of new re-fueling
stations.