The advantages of using alternative energies


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Is Driving a Natural Gas Powered Car a Good Deal?

US energy reserves in the form ofperformance handicap. However, the
natural gas are about 80% larger thanconversion of a gasoline powered car is
its petroleum reserves. Future drillingexpensive and the large, high pressure
will add modestly to either reserve withcylinders for storing CNG must be
the likelihood that new natural gasinstalled in the car's trunk when
reserves will be more significant.retrofitting.
T. Boone Pickens is proposing to useA few car manufacturers are already
more natural gas as fuel foroffering vehicles equipped to use both
automobiles. His ads are gainingfuels, CNG and gasoline. One can either
traction and many people are beginninguse the one or the other fuel. An
to ask themselves if a Compressedimmediate changeover can be made by
Natural Gas or CNG powered car is intoggling a simple switch. In the US
their future.Honda is already offering its Civic GX
The answer depends on knowing threemodel. Volkswagen, Opel, Mercedes, and
simple facts; is CNG really much lessFiat are selling bi-fuel models in
expensive than gasoline, is CNG readilyEurope. Other Europeans are making CNG
available, and are commercial cars withpowered models, too. American carmakers
bi-fuel capability available for sale?are sure to follow.
The answers are yes, no, yes.There are two remaining questions. How
Natural gas can be offered at amuch natural gas reserves does the US
significantly lower price than gasoline.possess and how reliable are early price
In a recent ad by a large gas company asignals? After all, imported natural
price of $2.04 per GGE was offered forgas is sold mostly by OPEC countries and
CNG while the comparable price forthe US is already importing small
regular gasoline was shown at $3.46 peramounts of natural gas.
gallon. The energy content ofAvailable data puts US natural gas
compressed natural gas is quoted inreserves at 230 tcf (trillion cubic
"Gallon of Gas Equivalent" or GGE. Thisfeet). Present consumption is about 2
is a new measuring unit, which is basedtcf annually. Consumption of natural
on the energy content of the dispensedgas will obviously sharply increase once
gas. By basing the price of CNG on itsCNG is used widely in automobiles and
energy content, one can compare energywill also continue its annual rise as
prices of CNG and gasoline directly.overall US energy consumption continues
This is by far the best approach for theto grow. Annual natural gas consumption
customer who can compare prices for twomay soon grow close to 4 tcf. With this
equal amounts of energy, one for a gas,rate of consumption known natural gas
the other one for gasoline. Measuringreserves will last for more than fifty
the dispensed amount of CNG is moreyears.
difficult than measuring an equivalentWhen buying a bi-fuel car, we need to
amount of gasoline. However, a preciseconvince ourselves that CNG prices will
measurement can be made. Installing astay stable and competitive in order to
CNG measuring device is just morerecover the higher purchase price of the
expensive than its gasoline counterpart.bi-fuel equipped car. The natural gas
At present, there are almost no fuelingindustry has been using recent increases
stations equipped to dispense CNG. Thein the price of heating oil to
natural gas industry will have to makesignificantly increase the price of
considerable investments before anatural gas. How can we make a
sufficient number of fueling stationsrealistic estimate about future price
will be locally available. If you arestability of CNG? Past history shows
the lucky one who lives close to such athat the pipeline companies that sell
new station, you should seriouslynatural gas to local distribution
consider buying a new car with bi-fuelutilities were setting prices based on
capability. For local driving one usesthe same cut-throat practices used by
CNG, for long distance traveling oneOPEC.
continues to depend on gasoline. ByRealistically, we do not have any
having two fuel tanks on board, one foreffective protection from similar
CNG, the other for gasoline, the driverpricing policies in the future. We can
can select the fuel he wants to use.therefore, expect that the advertised
Existing cars can also be converted.lower CNG energy prices will not last
Cars burning compressed natural gas willforever.
perform flawlessly without any



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