Select Committee on Environment, Food and Rural Affairs Minutes of Evidence


Memorandum submitted by United Kingdom Petroleum Industry Association Limited (UKPIA)

  The UK Petroleum Industry Association (UKPIA) represents the oil refining and marketing activities of the main oil companies in the UK. Our member companies supply most of the transport fuels and other oil related products used in the UK. As such we have a major interest in the biofuels and welcome the Committee's consultation on this important issue.

SUMMARY

  1.  UKPIA's views can be summarised as follows:

    —  The oil industry already markets biofuels in some European Countries but believes that petrol and diesel will remain the road transport fuels of choice for decades.

    —  We believe biomass can be used most effectively in reducing CO2 emissions by using it to generate heat and electricity.

    —  We believe that replacing conventional diesel and petrol with biofuels:

      —  is a very expensive way of reducing emissions of carbon dioxide

      —  could worsen the position on local air quality in terms of NOx

      —  will not increase the security of supply of transport fuels

      —  will not necessarily be sourced from within the EU

      —  could have an adverse effect on biodiversity and fertiliser run-off from farms

      —  will not be popular with hay fever suffers due to the pollen from rape seed

      —  will require a significant and on-going subsidy from the taxpayer.

    —  UKPIA believes that UK's energy policy should be based on all three pillars of sustainability (economic, environmental and social) and not dominated by any one of them. Protecting the competitiveness of UK industry and avoiding fuel poverty are important goals along with protecting the environment.

    —  UKPIA agrees with the views expressed in the Executive Summary of the Performance and Innovation Unit's Report—The Energy Review—March 2002 that "it would make no sense for the UK to incur large abatement costs, harming its international competitiveness, if other countries were not doing the same".

Q1  The extent to which alternative crops are already grown in the United Kingdom.

Potential UK Energy Crop

  2.  The UK can grow a number of different crops for use as a source of energy including:

    —  Rape seed which can be converted into bio-diesel

    —  Sugar beet which can be used to produce ethanol by fermentation

    —  Wheat which can be used to produce ethanol by fermentation

    —  Miscanthus which can be burned to produce heat and power.

    —  Wood from short rotation coppicing which can be burned to produce heat and power

  3.  Bio-ethanol can be converted into ETBE (ethyl tertiary butyl ether), a high octane product, which can be blended into petrol without any of the water pick-up and vapour pressure constraints resulting from blending ethanol into petrol, especially in the summer.

  4.  Wheat and corn yield in the order of two t of ethanol per hectare sugar beet has a much higher potential, in the region of five t per hectare. The actual yield will depend on the quality of the land used, amount of fertiliser, etc.

Table

TYPICAL EUROPEAN YIELDS OF BIO-DIESEL AND ETHANOL PER HECTARE
CropProduct Typical yield
Rape SeedBio-diesel (RME) 1.3 te/ha
WheatBio-ethanol2.1 te/ha
Sugar BeetBio-ethanol 4.5 te/ha

Source: Concawe Report 2/02

Other Sources of Bio-fuels

  5.  A number of waste products can also be converted into energy or fuels eg used vegetable oil into bio-diesel, straw and forestry waste into heat and power, etc. However, like other biomass fuels, the potential UK production from these sources is limited.

  6.  In the longer term woody waste, straw and other cellulosic material can be converted to bio-ethanol using enzyme type technology or diesel by partial oxidation. Processes for both these options are currently under investigation/development. However they are not yet available commercially.

  7.  The technology to convert woody material and green waste to bio-ethanol using enzymes as catalysts is at the demonstration phase with the largest plant believed to produce about eight tonnes per day of bio-ethanol from about 40 tonnes per day of straw. However it will be some time yet before the process will be demonstrated commercially. One developer estimates that the current production cost of bio-ethanol is about 24 p/litre as opposed to the current cost of UK petrol, before tax and distribution, of about 15 p/litre (historically a high figure).

  8.  The production of diesel (or hydrogen) by partial oxidation (gasification) of biomass and conversion of the syngas produced is not at such an advanced stage. The key technology that has to be developed is the gasification stage. The rest of the process steps required are well established.

  9.  The size of advanced plants based on new technology will be limited by the amount of feed obtainable within a realistic geographic area. Biomass generally has a low energy density and contains a lot of water. Various literature sources mention a collection radius of some 70 km as the maximum beyond which transport costs become prohibitive.

Barriers for UK Farmers

  10.  The production of rape seed, wheat and sugar beet is conventional farming. Short rotation coppicing and miscanthus are new crops but their production should not pose any significant problems. The barriers to UK production are the availability of good quality set-aside land and process plants to convert say rape seed into bio-diesel, burn wood from short rotation coppicing, etc. In their absence of production plants there will be no significant market for the UK farmer's crops.

  11.  The other barrier for UK farmers is over sea's competition. In an open market there is no guarantee that the bio-ethanol and bio-diesel used in UK road fuels will be all sourced from the UK. Brazilian farmers can produce bio-ethanol from sugar cane and Malaysia farmers can produce bio-diesel from palm oil. Products from these counties are potentially cheaper than UK sourced material due to their more favourable climate and established production. The new EU Member States may also become potential competitors as they have potentially lower wage costs and a large farming base. Hence an expansion in the use of bio-ethanol and bio-diesel may not necessarily be based on UK production and so may not benefit UK farmers.

  12.  However wood from short rotation coppicing and miscanthus used for generating heat and power will be grown in the UK as it would be uneconomic to transport these products from overseas.

Q2  What benefits (or costs) would result from expanding their production, and in particular what contribution the use of bio-fuels might make to sustainable development

Optimal use of biomass

  13.  Different energy crops can be used to produce heat, electricity or road fuels. In a situation where the available land is limited, optimum use is an issue. The costs and benefits will therefore vary from case to case.

Road Fuels

  14.  The current focus is very much on the use of available land for the production of motor fuels. This may not, however, represent the optimum use of land from either an energy or greenhouse gas emissions point of view. Motor fuels are complex products that need to meet a number of requirements and specifications. Making such fuels from crops requires extensive processing and utilises only a part of the available biomass (oil or carbohydrates). The preferred crops are selected for their ability to produce such compounds rather than their potential for metabolising CO2.

  15.  UKPIA member companies are involved with the supply of bio-fuels in a number of countries and are will use bio-fuels that are commercial and meet the appropriate European Standards, current and future. These standards have been developed in conjunction with the European Commission, the bio-fuels producers, the motor industry and the oil industry. For diesel these standards would not allow the use of unprocessed vegetable oil eg rape seed oil that has not been converted to the methyl ester.

  16.  Modern diesel engines are built to very high standards with close tolerances to give the performance, lower emissions and reliability wanted by vehicle owners. In these engines sticky deposits from unprocessed vegetable oil may build up and damage the expensive diesel fuel pump. The deposits may also build up and cause the fuel shut-off valve to stick so that the engine will either not start or if running not stop, or foul the injectors which will increase emissions, or block the fuel filter. These known problems have all been linked to the use of unprocessed vegetable oil by analysis of the deposits causing the problem. Using up to 5% processed vegetable oil, meeting the proposed European standard, mixed with conventional diesel will avoid these problems. Hence UKPIA does not support the use of unprocessed vegetable oil.

Alternative use of biomass to maximise carbon dioxide benefit

  17.  An alternative is to simply use the biomass as a fuel to raise steam and produce electricity or combined heat and power. The processing required is considerably simpler and the crops can be selected solely on their ability to produce large amounts of biomass from a given land area. Such crops could include various grass varieties or fast-growing wood (short rotation coppicing). Adapted grass varieties can produce some 200 GJ/ha of net biomass energy (ie after accounting for the production energy), compared to 30 to 60 in the best scenario for RME or ethanol. When used for power generation this could displace an equivalent fossil fuel energy with a CO2 emission factor of say 80 kg CO2/GJ (typical of heavy fuel oil or intermediate between gas and coal). This would equate to 16 te CO2 /ha, four to eight times more than could be achieved through RME or ethanol (see table below).

  18.  Concawe, the oil industry's European environmental research group, carried out a survey of published information to estimate the potential saving in carbon dioxide per hectare of crops grown for a number of different crops. The greatest saving was when the crop was used to generate steam for heat and or power.

Table

CARBON DIOXIDE EMISSIONS ABATED BY THE USE OF CURRENT BIOFUELS
CropCarbon dioxide saved
Bio-ethanol from sugar beet blended with petrol 3.8 te/ha
Bio-ethanol from wheat blended with petrol 1.3 te/ha
Bio-diesel from rape seed blended with diesel 2.0 te/ha
Biomass (SRC or miscanthus) used to raise power 16.0/te/ha

Source: Concawe Report 2/02

  19.  Based on current information producing liquid road fuels is not the best use of land in terms of reducing CO2 emissions. The best use of energy crops needs to be established.

  20.  This gap could be reduced in the longer term when the new enzyme based process to produce bio-ethanol from cellulosic biomass and diesel from syngas generated from wood are developed and become available. The German consultancy LB Systemtechnik produced a report (GM Wells to Wheels Analysis of Energy Use and Greenhouse Emissions of Advance Fuel/Vehicle Systems—A European Study) for General Motors and four major oil companies (BP, ExxonMobil, Shell and TotalFinaElf) which ranked a number of current and future options for reducing greenhouse gas emissions. This shows the potential improvement from advanced bio-ethanol production technology.

Table

WELLS TO WHEELS GREENHOUSE GAS EMISSIONS FOR BIO-ETHANOL


Wells to Wheels Greenhouse Gas
Emissions g CO
2 equivalent/km
Relative Wells to Wheels
Greenhouse Gas Emissions per
cent of Sugar Beet Case
Ethanol (E100) from straw25 30%
Ethanol (E100) from poplar65 70%
Ethanol (E100) from sugar beet91 100%

Source: LBST Report September 2002

Cost

  21.  In general alternative fuels (bio-diesel, bio-ethanol, etc) are more expensive than conventional fuels. The higher cost of producing renewable fuels has prevented their widespread use in the past and will require a substantial on-going subsidy to ensure their use in the future, unless there is an unexpected step change in the technology.

  22.  Currently bio-diesel attracts a 20p/litre lower duty than conventional diesel. A similar reduction for bio-ethanol was proposed by the Chancellor in the 2002 Pre Budget Report. However the size of both duty reductions have been criticised by the farmers lobbying groups as being too small to stimulate the large scale production of biofuels in the UK. British Sugar recently said that they needed a 26 p/litre subsidy to make UK production of bio-ethanol economic and there is currently a House of Commons Early Day Motion calling for a 30 p/litre subsidy.

  23.  In their draft regulatory impact assessment for the proposed Biofuels Directive DfT report that "on the basis of the Commission's own estimates of the extra production costs" the costs for the UK could range from "£475 million to £875 million per annum".

  24.  A similar range can be obtained by calculating the duty lost by replacing five% of UK petrol and diesel by biofuels for a range of reductions in fuel duty.

Table

DUTY LOST BY REPLACING FIVE PER CENT OF UK ROAD FUELS BY BIOFUELS
Duty ReductionCurrent UK Sales of
Petrol and Diesel
Duty Lost by Replacing
five% of UK Petrol
and Diesel by Biofuels
20 p/litre&tild;48 billion litres £480 million
25 p/litre&tild;48 billion litres £600 million
30 p/litre&tild;48 billion litres £720 million
35 p/litre&tild;48 billion litres £840 million

Cost of abating CO2

  25.  Avoidance of CO2emissions from biofuel depends on the way it is produced. In their March 2002 draft regulatory impact assessment for the proposed Biofuels Directive DfT report that "the proposed directives could reduce 2010 UK emissions of carbon dioxide from road transport by 0.3-0.7MtC". DfT estimate that this gives a cost of "£675—£2,900 per tonne of carbon saved "(or £185 to 790 per tonne of carbon dioxide saved). This is slightly higher than the figures quoted by the Commission (COM (2001) 547 final).

  26.  Both sets of figure are way above the cost of other ways of reducing emissions of carbon dioxide. This is acknowledged by the Commission who report (COM (2001) 547 final) that that their lower abatement costs are "above the range for cost-effective measures to meet the EU's commitments during the first Kyoto commitment period." "The use of biofuels at this moment cannot yet be justified by the benefits alone of CO2 avoidance".

  27.  The Markal model studies carried out for HMG as part of the recent Energy White Paper reaches a similar conclusion as biofuels play a small part in the scenarios to reach a 60% reduction in emissions of carbon dioxide by 2050. Their use in the model appears to be largely due to the lower cost of biofuels whilst they receive a duty subsidy.

  28.  Analysis by the former DETR, along with that of many other organizations, shows that bio-fuels continue to be, at best, a marginal and very costly way of reducing CO2. At most bio-diesel can contribute about two-four% of the diesel demand, maybe saving a small fraction of a% of road transport CO2 emissions. However this would tie up the "spare" land in the UK and so block other measures which are likely to be more effective at reducing carbon dioxide and certainly much more cost effective.

Air Quality

  28.  In terms of air quality there will be no significant benefit from the use of biofuels. In the Explanatory Memorandum for the proposed Biofuels Directive (COM(2001) 547 final) the European Commission report "with conventional gasoline and diesel becoming virtually sulphur and lead-free and with emission norms being tightened to more than 90% reduction of most conventional emissions, biofuels will offer in theory little, if any, emission advantage over gasoline and diesel in the future."

Security of Supply

  29.  With current technology, crop yields and land area available in the UK the argument on bio-fuels contribution to the UK's security of supply for road fuels should not be overstated. Biomass would appear to be better used to raise heat and or power directly rather than converting it to road fuels.

  30.  Reducing the demand for oil products can be achieved in more cost effective ways.

Q3  What should be done to encourage production?

  30.  UKPIA is against the setting of mandatory targets as it will interfere with the free operation of the market which is essential if emissions of carbon dioxide are to be reduced without affecting the competitiveness of the UK economy.

  31.  Production can only be stimulated by subsidies. HMG has to decide if it is worth subsiding current biofuels which are limited in the contribution they can make to reducing carbon dioxide.

Q4  What examples there are of best practice in other countries from which we can learn?

  32.  UKPIA's member companies will use fuels derived from biomass in transport fuels, as they already do in some countries provided they meet the quality specified in current/future European standards and companies are not placed at a commercial disadvantage by their use.

  33.  In terms of biofuels quality the European Standards Organisation, CEN, has already developed a European standard for bio-diesel to be blended into conventional diesel and is currently working on a standard for ethanol. The oil industry is contributing to this process.

  34.  UKPIA believes in the following approach to reducing emissions of carbon dioxide:—

    —  base it on all three pillars of sustainable development ie environmental objectives should not necessarily take preference over economic and social objectives.

    —  aim to meet its objectives in a sustainable manner and at the least cost to the UK.

    —  avoid large abatement costs which harm the UK's international competitiveness, if other countries are not doing the same.

    —  keep all realistic options open by an outward looking, open-minded approach focussed on co-operation and capable of adjustment to changing circumstances.

    —  maintain a level playing field between all options by avoiding the use of long term incentives, protected market shares, etc.

    —  create and maintain an environment where companies are willing to invest in maximising recovery from the North Sea and in other energy infrastructure projects.

    —  recognise that for at least the next three decades conventional hydrocarbon fuels will supply the bulk of the UK's energy needs, particularly in the transport sector.

    —  recognise the need to work with other countries to ensure that the investment climate in all countries encourages investment in energy infrastructure and supply.

    —  recognise the large international market for new technology required by manufacturers.

    —  emphasise the key importance of improving energy efficiency in all sectors, where economic.

    —  reflect that new low carbon approaches such as carbon sequestration and fuel cell powered vehicles need both advances in technology and long lead times.

  Thank you for the opportunity to contribute to this important debate.

31 March 2003


 
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