Current Issues Brief no. 12 2002-03
Fuel Ethanol-Background and Policy Issues
Mike Roarty
Science, Technology, Environment and Resources Group
Richard Webb
Economics, Commerce and Industrial Relations Group
10 February 2003
Content
Excise
Bounty
Production Subsidy
Other Forms of Assistance
Future assistance
Environment
Regional Development
Fuel Security
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Aldehyde
|
An organic compound containing the CHO
radical.
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Acetaldehyde
|
CH3CHO, the major aldehyde emission
produced in the combustion of ethanol.
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Benzene,
toluene and xylene.
|
The most widely used aromatic hydrocarbons, so
named for their characteristic, strong sweet odour. Whilst used
extensively for many industrial purposes they are classified as
hazardous chemicals.
|
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1, 3-Butadiene
|
A hazardous chemical of which small amounts
are found in petrol. Used extensively in the manufacture of
synthetic rubber and plastics.
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Ethanol
|
An alcohol (C2H5OH),
used for a variety of purposes.
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Evaporative emissions
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Emissions of fuel vapours to the atmosphere by
evaporation of fuel.
|
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Fuel ethanol
|
Ethanol blended with petrol, used as a fuel
for the transportation sector.
|
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Full fuel cycle
|
Full fuel cycle emissions take account of all
emissions including aspects such as production, refining,
distribution, evaporative etc rather than just tailpipe
emissions.
|
|
Lignocellulose
|
The structural component of plant biomass and
can be derived from trees, grasses, and from cereal and paper
wastes.
|
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Toluene
|
Colourless, aromatic liquid derived from coal
tar or from the catalytic reforming of petroleum.
|
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Xylene
|
Xylene is found in small amounts in gasoline.
Another classified hazardous chemical used as a solvent in the
printing, rubber, and leather industries.
|
Ethanol (C2H5OH), an
alcohol, is used for a variety of purposes. This paper focuses on
fuel ethanol, that is, ethanol blended with petrol used as fuel for
transport. Whilst ethanol can be produced from a variety of
feedstock, it is predominantly produced from agricultural crops
including wheat starch and sugarcane.
The use of fuel ethanol in Australia is small.
Total ethanol output is around 135 million litres of which around
50 million litres are used for fuel blending. The bulk of fuel
ethanol is produced on the East coast and sold in New South Wales
from independent outlets. These outlets are, in the main, supplied
by the Manildra Group, which manufactures ethanol from wheat waste
in Nowra, New South Wales. The major oil companies are assessing
the manufacture and supply of fuel ethanol, and BP is marketing a
10 per cent by volume ethanol blended fuel in south-east
Queensland.
Fuel ethanol attracted considerable negative
comment during the closing months of 2002. The negativity centred
on claims of possible damage to vehicleswhich have not been
substantially modifiedfrom the use of blends above 10 per cent by
volume of ethanol. A number of industry bodies and motoring
organisations have called for a cap of 10 per cent by volume of
ethanol in blended petrol. The negative publicity is likely to
hamper the marketing of fuel ethanol including the market-accepted
10 per cent by volume blends.
The jury is still out as to whether high
ethanol blends damage vehicles. The Commonwealth Government
released a review of studies of the impacts of a 20 per cent
ethanol blend on vehicles. The review found that the information is
insufficient or conflicting but identified a number of problems
such as the possible perishing and swelling of elastomeric and
plastic materials making up fuel systems. The Government has
commissioned a study, to be released in 2004, of the effects of
high ethanol blends. Nonetheless, stakeholders in the motor vehicle
industry have stated that warranties on motor vehicles and pump
dispensing equipment could be at risk with the use of blends above
10 per cent ethanol.
Whilst the recent controversy has been
dominated by the use of high ethanol content fuel, the main
arguments that have long been advanced in favour of fuel ethanol
include environmental benefits, the development of regional
industries, and supplementation of the national fuel supply.
Ethanol production from a range agricultural crops including wheat
and sugarcane is also regarded as 'renewable' and sustainable.
There is however a range of environmental and financial offsets
associated with the use of fuel ethanol.
Fuel taxes can reduce the costs to society of
emissions and greenhouse gases. But the Bureau of Transport and
Regional Economics has concluded that government assistance to the
use of alternative fuels such as ethanol has not been calibrated to
reflect these costs, that environmental objectives could be
achieved at lower cost, and that the cost of assistance probably
exceeds the environmental benefits.
A major disadvantage of fuel ethanol is its
production cost, which is around 70 cents a litre compared with
around 35 cents per litreat current world crude oil pricesfor
unleaded petrol. Consequently, the production of ethanol requires
government assistance to be competitive even in the larger
producers such as Brazil and the United States. A study by the
Australian Bureau of Agricultural and Resource Economics found that
the production of ethanol is not commercially viable in Australia
without assistance.
Commonwealth assistance now takes the form of
a grant of 38.143 cents per litrethe same rate as the excise on
petrol. The Fuel Taxation Inquiry concluded that assistance to
alternative fuels, including ethanol, has significant resource
allocation effects that can no longer be justified. The Government
has announced that it will provide a capital subsidy of 16 cents a
litre for new or expanded facilities for biofuels, such as ethanol,
until new production capacity reaches 310 million litres or by 30
June 2007, whichever comes sooner. This would further increase the
misallocation of resources.
Assistance increases the production of ethanol
and employment in regional areas. But much of this is activity
'redistributed' from other parts of the economy. The Fuel Taxation
Inquiry noted that no analysis has been undertaken to establish the
social benefits of assistance to regional areas and whether the
benefits could be achieved at lower cost by other means.
There have been suggestions that the ailing
sugar industry could be a direct beneficiary of an expansion of the
ethanol industry via the mandatory use of ethanol blended petrol,
in much the same way as corn producers have benefited from such
programs in the mid-western United States. Whilst intuitively this
suggestion would appear fundamentally sound, there are other
important production and financial considerations. This would
include whether sugar production would need to be directed
primarily towards the ethanol market, which effectively would
substantially increase the cost of ethanol feedstock.
Australia's reserves of crude oil are
considered to be low with the reserves to production ratio
estimated to be below 10 years. This indicates Australia's
resources of crude oil will run down in the not too distant future.
Fuel ethanol presently contributes little to fuel security; current
use represents only 0.19 per cent of total petrol and diesel use
(31 billion litres), and 0.33 per cent of total petrol use (18.5
billion litres).
Interest groups have called for the mandatory
use of fuel ethanol with suggested ethanol content ranging from two
to 10 per cent. This would require ethanol production to expand to
360 million and 1.8 billion litres respectively. However, to supply
the 10 per cent content blend seems to be beyond the realms of
practicality as well as being prohibitively expensive in terms of
the cost of assistance.
The use of fuel ethanol attracted considerable
negative press and public comment in the later part of 2002.
Because of the importance of fuel, this issue warrants fuller
discussion by outlining the various benefits and costs of using
fuel ethanol in the Australian transportation sector.
Whilst ethanol is used for a variety of
manufacturing uses, including the alcoholic component of beverages,
its use as a fuel extender is the focus of this report. Ethanol as
a fuel has been utilised almost since the building of the first
mass-produced motor vehicle; fuel ethanol was used extensively in
north Queensland from 1929 to 1957.(1) This was a
requirement under the Queensland Motor Spirit Vendor's Act although
this was rescinded in 1957. Fuel ethanol has been marketed in New
South Wales since 1994 while BP began marketing 10 per cent ethanol
blend petrol in south-east Queensland in 2002.
The task of developing and marketing fuel
ethanoleven at the generally accepted 10 per cent ethanol by
volumehas been made more difficult by the recent barrage of
negative press and public comment. The negativity centres around
high ethanol blended fuel being sold in New South Wales by
independent retailers. Although higher ethanol blends are used
elsewhere in the world, principally in Brazil, the car fleet there
has specific fuel line and engine component modification allowing
it to run on these higher blends. Most commentators concur that 10
per cent is the most acceptable ethanol blend that requires no
vehicle modification. Above this threshold, there is broad
consensus that damage can occur to vehicle fuel systems and engine
components without modification.
Ethanol is produced from a range of
agricultural crops, such as wheat and sugar cane and as such the
fuel stock is 'renewable'. The ethanol industry in Australia is
quite small, in the order of 135 million litres, compared to the
world's largest producerBrazilwhich has an annual output of some 12
billion litres. The United States produces around seven billion
litres annually. The Commonwealth Government has a policy objective
of increasing output of biofuels (including ethanol) to 350 million
litres by 2010.(2)
Increased ethanol production could assist in
expanding existing industries and developing new ones in rural and
regional Australia. Increased production could extend and
supplement Australia's declining crude oil reserves. However, at
the end of the day it depends on an analysis of benefits and costs
of such strategies. These issues are addressed in the paper.
Ethanol (ethyl alcohol,
C2H5OH) is an alcohol made by fermenting and
distilling simple sugars. Ethanol can be manufactured from:
-
biomass via the fermentation of sugar derived
from grain starches of many crops including wheat wastes and
sugar
-
biomass via the utilisation of the
lignocellulosic fraction of crops or
-
petroleum and natural gas via an ethylene
intermediate step.
Ethanol is used in the manufacture of
alcoholic beverages and it is denatured (made unfit for human
consumption) when used for fuel and a variety of other manufactures
such as methylated spirits.
Ethanol is now the most widely used
alternative fuel in the world; the biggest use of ethanol in the
United States is as an additive in gasoline. It serves as an
oxygenate (to prevent air pollution from carbon monoxide and
ozone), as an octane booster (to prevent early ignition, or 'engine
knock'), and as an extender of gasoline.(3)
The recent negativity towards fuel ethanol
centred on claims of possible damage to unmodified vehicles from
the use of blends above 10 per cent by volume of ethanol. Various
industry bodies and motoring organisations, including the National
Roads and Motorist's Association and the Australian Automobile
Association have called for a 10 per cent cap by volume on ethanol
blended petrol. Queensland has legislative requirements that
ethanol blended fuel not exceed 10 per cent whilst South Australian
does not allow the use of ethanol in petrol. Ethanol blends well
above 10 per cent by volume have been marketed by number of
independent service stations in New South Wales since 1994. A
consequence of the negative publicity will be to hamper the further
development of a fuel ethanol industryincluding the marketing of
the accepted 10 per cent by volume blends.
The jury is still out as to whether high
ethanol blends can damage vehicles. The Commonwealth Government
released a literature review based assessment on the impacts of a
20 per cent ethanol gasoline blend on the Australian vehicle fleet
in December 2002.(4) Whilst it determined, in many
cases, that there is insufficient or conflicting information
available, the review did identify a number of areas where problems
could arise with the use of high blend ethanol petrol. These
problems included possible perishing and swelling of elastomeric
and plastic materials making up the fuel systems, especially in
older vehicles and the potential for corrosion of the metal
components of engines. The Commonwealth Government has commissioned
a detailed study into the effects of the use of high ethanol
blended petrol with findings to be released in 2004. Regardless of
the eventual findings, virtually every stakeholder in the motor
vehicle industry has stated publicly that warranties on motor
vehicles and pump dispensing equipment could be put at risk with
the use of ethanol blends above 10 per cent.
The Australian ethanol industry is relatively
small, indeed, minuscule by world standards. Presently there are
three Australian producers with a total output in the order of 135
million litres. This compares with production of 12 billion litres
in Brazil, by far the world's largest producer followed by the
United States at seven billion litres. Australia's main producers
are shown in Table 1.
|
Company
|
Feedstock
|
Million
litres per annum
|
|
CSR
|
molasses
|
55
|
|
Manildra
Group
|
starch
|
75
|
|
Rocky
Point/Bundaberg
|
molasses
|
5
|
|
Total
|
|
135
|
Source: CSR Distilleries
Of
total domestic output, around 50 million litres of ethanol are used
for blending with fuels. This market is dominantly supplied by
Manildra from its Bomaderry plant near Nowra in New South Wales and
now to a lesser extent with CSR supplying BP with around four
million litres per year to produce its E10 blend petrol being
marketed in south-east Queensland.
Exports currently are around 30 to 35
million litres annually, which are mainly directed to the Asian
beverage market (Japan, Sri Lanka, Korea etc). This market is
dominantly supplied by CSR from its Sarina plant in
Queensland.
The
Australian domestic market for ethanol, apart from fuel ethanol, is
around 42 million litres. The main applications are
pharmaceuticals, foods and beverages, chemical manufactures, paints
and thinners, aerosols and cosmetics.
The
bulk of ethanol blended fuel is sold in New South Wales, from
around 200 or so independent outlets. The Manildra Group supplies
these outlets in the main. The other major oil companies are
assessing the manufacture and supply of fuel ethanol following BP's
foray into this market in south-east Queensland in 2002.
Much
of the present controversy is related to the use of blends in the
range of 20 per cent ethanol being marketed by independent outlets.
Manildra maintain this is the percentage that makes it viable in
the current market to blend ethanol.(5) A large part of
the controversy relates to the non-labelling of petrol containing
ethanol and the fact that customers cannot determine what in fact
they are buying. High ethanol blends petrol has attracted
descriptions such as 'car rotting
additives'.(6)
BP's
foray into the retailing of ethanol blended petrol has been
accompanied by the labelling of ethanol content at its retail
outlets. The Queensland Government now fuels its Q-fleet in
Brisbane with E10 fuel. BP contends that ethanol blended petrol
should be mixed at terminals to ensure product quality and that
ethanol blend fuels should meet all Australian
standards.(7)
As
outlined in the Fuel Security section at page 15, current fuel
ethanol use represents only 0.19 per cent of total petrol and
diesel use. Ethanol is now produced only on the East coast.
Transportation of ethanol to other parts of Australia to comply
with possible mandatory requirements resulting in substantial new
ethanol production, would have substantial cost implications. The
marketing of fuel ethanol would necessitate the building of
additional infrastructure. Most petrol outlets presently market in
the order of four to five products, namely, unleaded petrol,
premium unleaded petrol, lead replacement petrol, diesel and
autogas, each with separate facilities. Marketing of fuel ethanol
would require an additional set of facilities, with particular
attention to control of water contamination and this is discussed
in the Environmental and Other Offsets section at page
11.
Two
claimed benefits for the use of fuel ethanol are that ethanol is
produced from renewable sources and that it creates jobs in rural
and regional areas. Increased production would necessitate the
expansion of existing facilities as well as bringing new production
on line. The troubled sugar industry has been flagged as a
potential beneficiary.
Whilst the expansion of ethanol
production would lead to increased economic activity in regional
areas, some expansion would be at the expense of existing industry.
It has been estimated that a mandatory 10 per cent ethanol mix in
petrol would transfer a $3 billion slice of the fuel market from
the oil companies to ethanol producers such as Manildra. Treasury
would lose more than a $1 billion a year in petrol excise. But such
a move could create 90 000 jobs, mostly in the bush.(8)
Other analyses indicate much lower cost estimates. For example, the
Australian Institute of Petroleum estimates that 10 per cent of the
petrol market has a value of the order of $600 to $700 million. A
study for the Australian Bureau of Agricultural and Resource
Economics estimated that if fuel ethanol were to capture ten per
cent of the petrol market by 2010, the annual loss to government
revenue (in the form of zero excise) would be about $688
million.(9)
The
Australian sugar industry is well dispersed along Australia's
eastern seaboard and any increase in demand for sugar products
including ethanol production would boost economic activity in this
region. The distribution of the sugar industry is shown in Figure
1.
There have been suggestions that the
ailing sugar industry could be a direct beneficiary of an expansion
of the ethanol industry via the mandatory use of ethanol blended
petrol, in much the same way as corn producers have benefited from
such programs in the mid-western United States. Whilst intuitively
this suggestion would appear fundamentally sound, there are other
important financial considerations.
Ethanol now produced from the sugar
industry comes from C molasses, a waste low-value end product also
used as cattle feed. Despite low prevailing sugar prices, a
redirection of first express juicesthe primary sugar cane productto
ethanol production would greatly increase the price of ethanol
feedstock and hence the cost of producing ethanol. Although sugar
prices have declined in real terms over the last thirty years,
present prevailing priceswell over A$200/tonneare still higher than
sugar farmers are likely to receive if they were producing
feedstock for ethanol production.

Source: Canegrowers Association
Treasury has cast doubt on whether
the mandatory blending of ethanol with petrol would benefit sugar
farmers:
ethanol producers would be unwilling, at best,
to pay more than the world price if they were to buy sugar as an
ethanol stockfeed (sic). The only effect on sugar farmers would be
that exports would be displaced. The price received for sugar would
remain the same and, overall, sugar farmers would be no better
off.(10)
a
mandate of excised ethanol is likely to add approximately 0.75
cents per litre to the retail price for each per cent of ethanol
mandated A mandate would also obviously transfer considerable
income to ethanol producers.(11)
If
mandatory use of fuel ethanol was introduced (see section on Fuel
Security, page 15), there would be a substantial permanent increase
in demand for ethanol, which would push prices up. But would such
price increases encourage a shift from the sugar market to the
ethanol market?
Whilst it is difficult to answer such
a question precisely, some part of the sugar market would no doubt
be directed to ethanol production. Whilst it could not be concluded
that such a development would be a panacea for the sugar industry,
an expanded market for sugar products would no doubt assist the
economic fundamentals of the sugar industry.
As
with any change in well established and reliable product supply
such as the petroleum product market, a shift to high dependence on
fuel supply from agricultural production, including sugar, may
result in some unforeseen difficulty. For example, any large-scale
crop failure for any variety of reasons including disease and
drought would quickly dry up ethanol supplies, leaving ethanol
producers requiring alternative supplies including
imports.
The discussion on the economics of fuel
ethanol use is disaggregated into industry assistance, and the
benefits and costs of subsidising fuel ethanol.
The main barrier to the increased use of fuel
ethanol is that it costs more to produce than petroleum products.
It costs around 70 cents a litre to produce ethanol and around 35
cents a litre to produce petrol at prevailing crude oil prices. To
enable fuel ethanol to compete with petrol, its use has been
assisted. Assistance has taken three main forms:
-
zero rate of excise
-
bounty payments to producers, and
-
since 18 September 2002, a subsidy to
producers.
Zero-rating the excise on fuel ethanol while
imposing excise on petroleum products has been the main form of
assistance. Zero-rating was introduced to reduce dependence on
imported petroleum.(12) In 200001, the cost to
government in terms of revenue forgone from zero-rating was about
$16 million.(13)
On 12 September 2002, the Government announced
that it would impose
excise on fuel ethanol blended with
petrol at the same rate as the excise on unleaded petrol, namely,
38.143 cents per litre, with effect from 18 September 2002 until 17
September 2003.(14) Customs duty on imports of 38.143
cents per litre was also imposed.(15) The excise and
customs duties are projected to raise $26 million in 200203, $34.4
million in 200304, $44.6 million in 200405 and $61.5 million in
200506.(16) The Government also introduced a production
subsidy of 38.143 cents per litre (discussed below).
The imposition of the same rate of excise on
petrol and fuel ethanol is administratively advantageous in that it
simplifies the calculation of excise payable on blended fuels. The
decision is also consistent with the Fuel Taxation Inquiry's
recommendation that all liquid fuels, including fuel ethanol, be
subject to excise:
The Inquiry considers that the scope of the
excise base should be broadened from 'liquid petroleum
products' to 'liquid fuels (irrespective
of derivation) and liquefied and/or compressed natural and
petroleum gases'. Therefore, the broadest fuel excise base within
the terms of reference would include the currently excised
petroleum based fuels while incorporating petroleum substitute
fuels such as ethanol (17)
But on an energy content basis, the
excise on fuel ethanol is higher than on petrol. That's because
fuel ethanol produces only 68 per cent of the energy of petrol when
combusted.(18) If excise was based on energy content,
the excise on fuel ethanol would be around 26 cents per
litre.(19) Fuel ethanol has thus moved from being tax
advantaged (zero-excise) relative to petrol to being tax
disadvantaged. The advantaging or disadvantaging of one fuel
relative to others is contrary to the principle of tax
'neutrality', that is, that taxes should minimise discrimination in
favour of, or against, any particular economic choice such as which
goods to buy. Tax neutrality would be achieved if all liquid fuels
were taxed on their relative energy content as the Fuel Taxation
Inquiry recommended.(20)
In the 199394 Budget, the Keating Government
announced that it would provide a bounty for domestic production of
fuel ethanol. The bounty came into effect on 23 June 1994 under the
Bounty
(Fuel Ethanol) Act 1994. The bounty was additional to
the zero-rating of excise.
The Howard Government announced the abolition
of the bounty in the 199697 Budget. The Minister for Resources and
Energy stated that the Government decided to end the scheme because
it did not achieve its objective.(21) The Minister's
decision was based on a reportby the Bureau of Resource Sciences,
the Australian Bureau of Agricultural and Resource Economics and a
steering committee representing five departmentsthat recommended
the bounty cease.(22) The Report concluded among other
things that:
While the Scheme has initiated new production,
distribution and use of fuel ethanol, an economically viable
industry has not been developed.(23)
When the Government imposed excise on fuel
ethanol, it also announced a subsidy to domestic production of the
same amount. The subsidy is to be provided over 12 months while the
Government considers long-term arrangements for the renewable
energy industry. The budgetary subsidy will make the cost of
assistance transparent, which was not the case when excise was
zero-rated. The subsidy is projected to cost $26 million in 200203
and $7.2 million in 200304.(24)
On an energy content basis, the value
of the subsidy exceeds the rate of excise. The
Australian Bureau of Agricultural and Resource Economics
estimated
that if the zero-rating of excise were replaced by a subsidy of 38
cents per litre, the subsidy would be 50 per cent greater than the
excise on petrol.(25)
Pilot Plant
In his statement on Australia's
response to climate change, the Prime Minister, the Hon. John
Howard, confirmed funding of $2 million towards an ethanol pilot
plant.(26) The pilot plant would be built to demonstrate
new Australian technologies for the production of ethanol from wood
fibres and simultaneous waste treatment.
Diesel and Alternative Fuels Grants Scheme
Fuel ethanol is defined as an 'alternative
fuel' for the purposes of the Diesel
and Alternative Fuels Grants Scheme Act 1999. This scheme
provides grants to the users of diesel and alternative fuels used
in transporting goods and passengers on public roads in regional
and rural areas in vehicles that have a gross vehicle mass of 4.5
tonnes or more. The grant rate for fuel ethanol is 20.809 cents per
litre. However, as at September 2001, no claim for a grant had been
lodged.(27)
Research and Development
On 15 September 2002, the Government announced
that it would provide the Sugar Research Institute with up to $400
000 to test new
ethanol technology that could make
the cost of producing fuel ethanol competitive with petrol.
Greenhouse Gas Abatement Programme
Under the Greenhouse Gas Abatement Programme,
the Federal Government is funding a $7.35 million ethanol project
at the Mossman
Central Sugar Mill , and is providing $8.8 million to BP
to market a fuel ethanol and petrol blend from its Bulwer Island
refinery. Both projects are located in Queensland.
The Government has proposed providing a
capital
subsidy to expand production
capacity:
The Coalition will set an objective that fuel
ethanol and biodiesel produced in Australia from renewable sources
will contribute at least 350 million litres to the total fuel
supply by 2010. Progress towards the objective will be reviewed in
2006:
To implement the 350 million litre objective,
the Coalition will provide, through a grant process from 2002/03, a
capital subsidy for new or expanded domestic production
infrastructure of $0.16 per litre of biofuel, until total new
domestic production capacity reaches 310 million litres or by
end-2006/07, whichever is sooner; and
To be eligible for the subsidy a new or
additional production plant must be able to produce a minimum
volume of 5,000,000 litres of biofuel each year. A maximum grant of
$10 million will apply for each new or expanded
plant.(28)
Assistance to fuel ethanol has economic
benefits and costs. The question that arises is whether the
benefits outweigh the costs. As the Bureau of Transport and
Communications Economics pointed out in a research report on
transport and greenhouse gases:
The danger to the community of not basing
decisions on cost-effectiveness is an unnecessary loss in welfare.
Every dollar spent unnecessarily on reducing greenhouse emissions
also reduces the community's ability to fund other projects such as
hospitals, schools or defence.(29)
A number of arguments have been advanced in
favour of assistance to the fuel ethanol industry.(30)
They include:
As with most analyses of environmental
assessments and impacts, there is a range of environmental benefits
and offsets relating to the production and use of fuel ethanol and
these are discussed under the relevant headings below.
Environmental benefits
The key environmental benefits claimed for
using ethanol blended petrol vis a vis conventional petrol include
the following:
-
production of ethanol from agricultural crops
is regarded as being 'renewable' unlike production of refined
petroleum product from crude oil, which is a finite resource
-
reduced tailpipe exhaust emissions of carbon
monoxide, hydrocarbons, 1-3 butadiene, benzene, toluene and
xylenes(32) and reduced full fuel lifecycle
emissions of greenhouse gases. Whilst there is little or no benefit
in reduced tailpipe emissions of carbon dioxide compared with
petroleum fuels, the production of ethanol is generally regarded as
greenhouse gas neutral.
There have been many studies on the levels of
emissions from transport fuels including the alternative fuels such
as the ethanol-blends. The results of these studies are mixedwith
ranges of emission dataalthough there is some broadly based
agreement. The main environmental benefits of using ethanol-blended
petrol are reduced vehicular tailpipe emissions of carbon monoxide,
total hydrocarbons, 1-3 butadiene, benzene, toluene and xylenes and
in some cases nitrogen oxides. Further acknowledged environmental
benefits include the fact that ethanol is an oxygenatethat it has a
high oxygen contentand as such enhance octane ratings. Higher
octane fuels result in a higher proportion burn and reduced
smog-causing and carbon monoxide emissions. Carbon monoxide is one
of the principal vehicle pollutant emissions of most concern to
human health, particularly in high-density urban areas.
Fuel ethanol is set to replace the use of
petrol containing the additive methyl tertiary butyl ether (MTBE)an
oxygenatebecause of environmental concerns such as water supply
contamination in the State of California in the United States. This
fact alone significantly enhances its environmental credentials.
ChevronTexaco, which controls 18 percent of the California retail
gasoline market, has begun the switch to ethanol and will complete
the switch for southern California in May 2003. The company will
stop using MTBE statewide by the end of 2003 in compliance with the
state's MTBE ban. According to the official ChevronTexaco
announcement:
Chevron's cleaner-burning gasoline with ethanol
will have more of the air quality benefits of today's gasoline, but
without the water pollution attributed to
MTBE.(33)
The positive benefits relating to greenhouse
gas emissionsprimarily reduced carbon dioxide emissionsdepends upon
how the ethanol is produced. Whilst ethanol produced from
cellulosic (woody) feedstock results in substantially reduced
full fuel cycle greenhouse gas emissions, ethanol produced
from starchy crops as in Australia (wheat waste and sugar cane)
does not produce significant full fuel cycle greenhouse
gas savings over conventionally produced gasoline.(34)
Differences in the full fuel cycle analyses arise because
of differences in the production processes. Agriculture production
of wheat and sugar involve high use of machinery and fertiliser,
which in themselves are net emitters of greenhouse gases.
Environmental and Other Offsets
There are a number of offsets to the
environmental benefits of using fuel ethanol and these include the
following:
-
an increase in emissions of adelahydes
(formaldehyde and acrolein), and particularly acetaldehydes
-
as an alcohol, ethanol contains the hydroxyl
group giving it an affinity for water. If water content of either
the fuel supply system, distribution system or vehicle storage
tanks exceeds a threshold content of a couple of per cent water,
then phase separation of the ethanol/water and petrol mix can occur
leading to subsequent vehicle driveability problems and potential
engine damage. Some ethanol blends are unsuitable for
non-automotive usesuch as aviation, boats and a range of hand held
devices and lawnmowers. The Boating Industry Association of NSW, in
a national advertising campaign, warned boat owners that the use of
ethanol blended petrol above 10 per cent in outboard motors could
be a marine safety hazard(35)
-
if an ethanol/petrol blend is spilt in a small
watercourse or drain, the petrol may be able to be skimmed off the
top but the ethanol will dissolve and be almost impossible to
recover. Ethanol is, however, more easily biodegraded or diluted to
non-toxic concentrations than is petrol.
Ethanol has a lower energy content than
petrolaround two thirds. As such, the use of ethanol blended fuels
result in a loss of fuel economy. The higher the ethanol blend, the
greater the loss in fuel consumption. A 10 per cent ethanol blend
results in a loss of fuel consumption of around three per cent.
Externalities
Air pollution and greenhouse gas emissions are
'external costs' or 'negative externalities' of fuel use.
Externalities arise when one party imposes on, or provides to
others, costs or benefits that are not captured in market
transactions. For example, trucks impose 'negative' externalities
such as noise and air pollution on residents living near highways,
but there is no market transaction whereby the users of the truck
services compensate residents for the cost of the externalities. In
other words, there has been 'market failure'.
While negative externalities impose costs on
society:
eliminating them altogether (for example, by
banning cars totally) would also impose significant costs. A
socially optimal level lies somewhere in between, with some amount
of 'bad' tolerated in exchange for the benefits of economic
activity. However, the social benefits of reducing an externality
must outweigh the social cost of doing so, if the community is to
benefit overall.(36)
Economic instrumentssuch as taxes, charges and
subsidiescan reduce the costs to society of negative externalities
by 'internalising' them. The Fuel Taxation Inquiry concluded:
The above analysis shows fuel taxation to be an
appropriate instrument for charging for the externalities of fuel
use for which there is a strong correlation between the external
cost and the type or amount of fuel used. Climate change is an
example of such a cost.(37)
Do the Environmental Benefits of Fuel Ethanol Justify
Assistance?
The environmental benefits of fuel ethanol and
the negative externalities resulting from the use of petrol and
diesel are often cited as a justification for assisting fuel
ethanol.(38) The question that arises is whether the
benefits justify the cost of assistance.
The first point to note is that the level and
structure of fuel taxes are unrelated to environmental benefits.
The Bureau of Transport and Regional Economics (BTRE), in a report
titled Greenhouse
Policy Options for Transport
published in May 2002, that is, before the Government ended the
zero-rating of excise, found:
Ideally, in order to avoid distorting relative
prices of different types of fuel from different sources, any
program to tax fuels according to emissions would need to cover all
fuels. The fuel duty concessions in place today have not been
calibrated to reflect the external costs associated with fuel use.
In the absence of such calibration, it is likely that some fuels
are over- or under-subsidised and that environmental objectives
could be achieved at lower cost, by calibrating the
concessions/taxes to better reflect the different levels of
environmental damage associated with different fuels.
The subsidy inherent in the excise exemption of
alternative fuels probably exceeds the environmental benefits it is
meant to target. As the B[ureau] of T[ransport] and
C[ommunications] E[conomics] observed:
On the basis of the limited emissions costing
available, it appears unlikely that the environmental benefits from
most alternative fuels are as large as the existing 'subsidy' they
now receive.(39)
The review of the bounty noted above also cast
doubt on the cost-effectiveness of assistance in terms of attaining
the environmental benefits of fuel ethanol:
Current production and use of fuel ethanol is
not cost effective in reducing emissions of greenhouse gas and
environmental air pollutants. There are both positive and negative
identifiable pollution outcomes. The evidence, although extensive
and complex, is also ambiguous and often contradictory. Under
current use and circumstances it is difficult to conclude that
there are net benefits from displacing petrol with fuel
ethanol.(40)
The environmental benefits of alternative
fuels relative to petrol and diesel may be declining. The Fuel
Taxation Inquiry observed that:
[Petroleum product substitutes] have some
environmental benefits relative to petrol and diesel, but even
these are lessening with improved technology.(41)
It has been argued that assisting production
of fuel ethanol benefits regional areas including through flow-on
effects to input producers.(42) The Manildra Group
claims that, if half of transport fuel were in the form of
domestically-produced fuel ethanol, more than 200 000 jobs would be
created directly in regional areas.(43) In the United
States where fuel ethanol is assisted by a partial exemption from
the motor fuels tax, about 90 per cent of the feedstock for fuel
ethanol production is corn. The effect is to increase the demand
for corn, raising its price above what it would otherwise be. It
has been estimated that this results in additional revenue to corn
producers of $US2. 4 billion annually.(44)
It is important to distinguish between
'redistributed' economic activity and social benefits resulting
from that activity. The level of production of ethanol and
employment in regional areas is dependent on government assistance.
Activity in ethanol production is thus largely a transfer of income
from taxpayers to ethanol producers by means of assistance. The
Fuel Taxation Inquiry in assessing the consequences of its
recommendation that fuel ethanol be subject to excise found:
The extent of these impacts is difficult to
assess. For some sectors, such as ethanol and biodiesel, where the
industries are at an early stage of development, the imposition of
excise will affect their future viability, even though it was based
on an artificial tax advantage.(45)
Similarly, a study for the Australian Bureau
of Agricultural and Resource Economics of the commercial viability
of increasing production of ethanol by the Australian sugar
industry concluded:
It is also clear that commercial viability of
both existing and expanded fuel ethanol production is dependent on
significant levels of government intervention, including features
such as the following:
Continued availability of full exemption from
fuel excise (or an equivalent rebate);
Other financial or other assistance that the
government may provide from time to time to investment in a fuel
ethanol industry (for example, under G[reenhouse] G[as] A[batement]
P[rogramme] and other existing or new
programs).(46)
The withdrawal or reduction of assistance
would thus be likely to result in a contraction of the industry. A
United States study concluded that fuel ethanol production from
corn would decline if the part exemption from the Federal excise on
motor fuels were eliminated.(47)
This raises the question of whether the higher
levels of ethanol production and usage that government assistance
stimulates can be justified in terms of the benefits to the
national economy or to particular regional areas. The Fuel Taxation
Inquiry noted:
no analysis has been undertaken to establish the
benefits to rural and regional areas of the tax concessions and
whether they could be achieved at lower cost by other
means.(48)
The net effect on employment in regional areas
of assistance to fuel ethanol is unclear. That's because assistance
to an industry also reduces activity in other industries. For
example, such expenditure reduces spending and activity elsewhere
in the economy, for example, regional tourism.
Resource Allocation
As noted, several reports have concluded that
the fuel ethanol production is not commercially viable without
government assistance. Assistance to fuel ethanol may also be a
misallocation of resources. Resources such as land, labour and
capital among different uses are said to be allocated 'efficiently'
when they are used to produce the goods and services that consumers
want most and are employed in the most productive industries.
Industry assistance can 'distort' the economically efficient
allocation of resources by interfering with decisions such as which
goods and services to buy and which industries to invest in. For
example, the exemption of petroleum product substitutes from excise
encouraged motorists to buy them rather than petroleum
products.
The Fuel Taxation Inquiry concluded that:
the use of fuel taxation concessions to
encourage the production and use of alternative fuels has
significant resource allocation effects that can no longer be
justified.
This conclusion is based on three
considerations:
The emergence of specific policy objectives for
fuel taxation concessions (such as air quality in urban areas)
means that the use of broad based fuel taxation instruments,
originally intended to encourage the use of petroleum substitutes
per se, irrespective of where, when or how they are used,
is no longer valid.
Despite the use of taxation concessions to
encourage the use of petroleum substitutes over the past 20 years,
the energy inefficiency, inconvenience and lack of access to those
fuels has restricted their use to a small proportion of transport
fuel. This is not expected to change over the next 20 years, by
which time a new generation of engine technology, replacing both
petroleum products and their substitutes may have emerged.
Regulatory requirements which are ensuring
improved standards in both the quality of petroleum products and
engine design, mean the traditional relationships between petroleum
products and substitutes on environmental performance are
changing.(49)
The Government's proposal to provide a capital
subsidy to expand production would further increase the
misallocation of resources.
An argument advanced for subsidising
alternative fuels is that they can replace petroleum-based fuels
and so reduce dependence on petroleum imports and vulnerability to
external supply disruptions. As noted, the Government originally
introduced the zero-rating of excise for fuel security reasons.
Australia's resources of crude oil are
considered to be low. Studies by Geoscience Australia indicate
Australia's reserves to production ratio of crude oil to be below
10 years. Whilst this does not mean Australia's crude oil reserves
will be exhausted within ten yearsbecause production is offset by
successful exploration and developmentsuch a low figure indicates
Australia's resources of crude oil will begin to run down in the
not too distant future.
Alternative fuels generally and fuel ethanol
in particular contribute little to reducing reliance on petroleum
products. In Australia, fuel ethanol use is equivalent to 0.19 per
cent of petrol and diesel use, 0.33 per cent of petrol use and 1.5
per cent of petrol use in greater Sydney, the main
market.(50) The situation is similar in the United
States where fuel ethanol is equivalent to only 1.4 per cent of
petrol consumption by volume.(51)
The Fuel Taxation Inquiry questioned the
effectiveness of assistance in achieving fuel security (see above
section on Resource Allocation).
In the United States:
In terms of energy, ethanol accounts for
approximately 0.7 per cent. This small market share led the
G[eneral] A[ccounting] O[ffice] to conclude that the ethanol tax
incentive has done little to promote energy
security.(52)
To increase fuel ethanol's market share, it
would necessary to increase assistance. A constraint on doing this
would be the cost to the Budget (see section on Industry
Opportunities page 4).
Endnotes
-
Bureau of Transport and Communications
Economics, 'Alternative Fuels in Australian Transport', Information
Paper 39, AGPS, Canberra, p. 51.
-
The Howard
Government, Putting Australia's Interests First, 'Our Future Action
Plan, Biofuels for Cleaner Transport', Election 2001 at
www.liberal.org.au.
-
B. D.
Yacobucci, J. Womach, 'Fuel Ethanol: Background and Policy Issues',
Congressional Research Service, The Library of Congress, 2 July
2002.
-
Orbital Engine Company, 'A Literature
Review Based Assessment on the Impacts of a 20% Ethanol Fuel Blend
on the Australian Vehicle Fleet', Report to Environment Australia,
Canberra, November 2002.
-
Fred Brenchley, 'Ethanol flashpoint',
The Bulletin, January 28, 2003, pp. 2829.
-
Mike Seccombe, 'Secrecy over
car-rotting additive', Sydney Morning Herald, 10 December 2002,
p.1.
-
Peter MacCuspie, 'Ethanol-The BP
experience in Australia', Biofuels 2002, 31 October-
1 November 2002, Brisbane.
-
Fred Brenchley, 'Ethanol flashpoint'
The Bulletin, January 28, 2003, pp. 2829.
-
B. Naughten,
Viability of Sugar
Cane Based Fuel Ethanol, Australian Bureau of Agriculture and
Resource Economics Report to the Department of Agriculture,
Forestry and Fisheries, Canberra , October 2001, p. 34 at:
http://www.affa.gov.au/content/output.cfm?ObjectID=C966A946-0DB8-4BD3-9EE73220FF10D630
-
'Cut ethanol's subsidy, set a limit,
then hands off', Canberra Times, 6 February 2003.
-
'Ethanol risk revelations damaging to
government', Australian Financial Review, 25 November
2002.
-
-
Australian Biofuels Association,
Renewable Ethanol Fuel: 15 Questions, 2002, p. 5.
-
Mid-Year Economic and Fiscal
Outlook, 200203, p. 100.
-
See Australian Customs Notice 2002/53,
18 September 2002 at:
http://www.customs.gov.au/site/index.cfm?nav_id=670&area_id=5
-
Mid-Year Economic and Fiscal
Outlook, 200203, p. 42.
-
Fuel Taxation Inquiry
Report, op. cit., p. 104.
-
ibid., p.105.
-
Based on table 4.2 of the Fuel
Taxation Inquiry Report, March 2002, p. 110.
-
Fuel Taxation Inquiry Report,
op. cit., p. 29.
-
Hon. W Parer, 'Ethanol Bounty Scheme
Ended', Media Release, 21 August 1996.
-
Department of Primary Industries and
Energy, 'Portfolio Evaluation for the Ethanol Bounty Scheme',
August 1996.
-
Department of Primary Industries
and Energy, Portfolio Evaluation for the Ethanol Bounty
Scheme, Canberra, August 1996, p. 16.
-
Mid-Year Economic and Fiscal
Outlook, 200203, p. 46.
-
B. Naughten, Viability of Sugar
Cane Based Fuel Ethanol, Australian Bureau of Agriculture and
Resource Economics Report to the Department of Agriculture,
Forestry and Fisheries, Canberra , October 2001, p. 34
-
Hon J. Howard, 'Safeguarding the
Future: Australia's Response to Climate Change', Media Release, 20
November 1997, p. 10.
-
Manildra Group submission (no. 247) to
the Fuel Taxation Inquiry.
-
National Party of Australia,
Biofuels for Cleaner Transport, Coalition Policy
Statement, 2001.
-
Bureau of Transport and Communications
Economics, Transport and Greenhouse. Costs and Options for
Reducing Emissions, Report 94, AGPS, Canberra, 1996, p.
xxix.
-
Australian Biofuels Association, op.
cit., p. 6.
-
Australian Biofuels Association,
Renewable Ethanol Fuel: 15 Questions, 2002, p. 6.
-
Apace Research Ltd, 'Intensive Field
Trial of Ethanol/Petrol Blend in Vehicles', ERDC Project No.2511,
Canberra, December 1998, p. III.
-
-
Bureau of Transport and Communications
Economics, 'Alternative Fuels in Australian Transport', Information
Paper 39, AGPS, Canberra, p. xx.
-
The Boating Industry of NSW, 'Ethanol
is no sweetener', The Sun Herald, 22 December 2002, p.66.
-
Bureau of Transport and Communications
Economics, Externalities in the Transport Sector,
Information Sheet 10.1, January 1998.
-
Fuel Taxation Inquiry Report,
op. cit., pp. 834.
-
ibid., p. 13.
-
Bureau of Transport and Regional
Economics, Greenhouse Policy Options for Transport, Report
105, 2002, p. 87. The reference in the quotation is to: Bureau of
Transport and Communications Economics, Alternative Fuels in
Australian Transport, Information Paper 39, AGPS, 1994, p.
213.
-
Department of Primary Industries and
Energy, Portfolio Evaluation for the Ethanol Bounty
Scheme, Canberra, August 1996.
-
Fuel Taxation Inquiry Report,
op. cit., p. 8.
-
Submission 247 (Manildra Group) to the
Fuel Taxation Inquiry.
-
ibid.
-
B. Yacobucci and J. Womach, op. cit.,
p. 6.
-
Fuel Taxation Inquiry Report,
op. cit., p. 22.
-
B. Naughten, op. cit., p. 36.
-
Food and Agricultural Policy Research
Institute, Effects on Agriculture of Elimination of the Excise
Tax Exemption for Fuel Ethanol, Working paper 01-97, 8 April
1997.
-
Fuel Taxation Inquiry Report,
op. cit., p. 17.
-
ibid., pp. 423.
-
Australian Biofuels Association, op.
cit., p. 2.
-
B. Yacobucci and J. Womach, op. cit.,
p. 5.
-
ibid., p. 13.
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