3.4
Economic Implications
The major
barrier for getting a wider acceptance of the new technology
of biofuel production is the cost. Although there is
a wide variety of biomass-derived transportation fuels,
which can be used to reduce our dependence upon petrol,
all of the traditionally derived biofuels are uneconomic
at present. However, it is promising that many of them
are projected to be cost-competitive with gasoline in
the near future. For example substantial cost reductions
are being made for sugar cane-derived ethanol, while
advanced biofuels that are derived from low-cost woody
biomass could offer higher energy yields at lower cost
and with lower environmental impacts than most traditional
biofuels.
The high
production cost of biofuels can be partially explained
– apart from the technology - by two fundamental issues
that make economic estimation complicated:
·
price determination of raw materials
·
indirect and external factors (land use, infrastructure,
transportation, employability, environmental impacts).
For example
feedstock costs account for a large percent of direct
biodiesel production costs, including capital cost and
return. Fats and greases cost less and produce less
expensive biodiesel, while the quality of the fuel is
similar to soy biodiesel fuel.
Great
caution should be exercised when assessing the viability
of biofuels produced from agricultural feedstocks. Usually these will have been produced by applying
chemical fertiliser, which is obtained from oil based
energy. There may also be processes which require energy
input (such as distillation of alcohol), which may currently
be oil based. As
long as the price of oil is low, such biofuels may appear
to be competitive, but they are not truly sustainable.
As the oil price rises, they will become less
rather than more competitive.
In the
case of producer gas, which is of low calorific value,
transportation costs are an important factor. As a result,
its main use is as industrial fuel produced close to
where it is needed. At the present time, gasoline produced
from wood is significantly more expensive than that
produced from petrol. However as world supplies of petrol
become scarcer in the next 50 years, gasoline from wood
may become more attractive.
In order
to overcome these financial problems, there is a need
to further develop cost-effective solutions, but at
the same time all possible political steps must be taken
to start internalising the environmental costs in all
fuel prices.
3.5
Political Implications
Increasing
political pressures driven by international concerns
for the environment force governments to seek new and
advanced technologies to reduce global CO2
emissions caused by the combustion of fossil fuels.
One way to meet this commitment is to enhance the use
of biofuels, which do not load the environment with
an extra burden of CO2.
In addition
to the environmental benefits, the production of biofuels
diminishes dependence on imported crude oil and increases
the security of national energy supply. Biofuels help
insulate countries from sudden interruptions or sudden
price fluctuations. The use of domestically produced
biofuels can also improve the self-sufficiency of those
countries that have net energy imports and can reduce
the economic burden of importing crude oil.
Biofuels
also contribute to the establishment of sustainable
energy systems and help capture the many external benefits
of renewable fuels. Experts estimate that – with political
support - biofuels can readily provide a long-term market
share of 15% or more of the transportation market over
the next few years. Ongoing research and development
efforts are being conducted by governments and industries
around the world to encourage the use of these fuels.
In the shorter term, these efforts help establish markets
and an effective infrastructure of biofuels. In the
longer term, these efforts are expected to result in
lower-cost fuels that are economically competitive in
the marketplace.
A very
important and unique feature of biofuels is that they
can be produced locally with local resources and technology.
Municipalities and industries pay to dispose or treat
the organic wastes they generate, but since these can
be converted to biogas, it is possible to reduce costs
or make income from the production of biofuels. The
drawback is that biofuel prices cannot compete with
petrol prices unless a more efficient technology is
used and/or changes are made to government policies,
taxes and tariffs in order to favour the production
and use of biofuels.