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Biofuels are not only an environment-friendly alternative to the use of conventional fossil fuels, but their production also unlocks significant socioeconomic benefits.
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South Africa is sowing the first seeds in a national initiative that is expected to sprout a vibrant local biofuels industry.
Plans that propose the planting, harvesting and processing of crops such as maize, sugar cane, soy beans, cassava, oil seeds from trees and sorghum into bioethanol and biodiesel feedstocks for use in the liquid-fuels industry are germinating in a hothouse of interest.
Long viewed as a pipe dream, mainly owing to the lack of a financial imperative, the establishment of an economically-viable biofuels industry in South Africa is becoming an attainable goal as a result of the high - and rising - price of oil, the requirement to diversify energy supply, the global drive to limit greenhouse gases and to curb global warming, technological advances that are lowering the cost of bio-fuels production and the enormous local job-creation potential of such an initiative, Engineeringnews.co.za reported.
In a speech during the launch of the National Energy Regulator of South Africa last month, Deputy President Phumzile Mlambo-Ngcuka said that Cabinet had approved a proposal by the departments of Minerals and Energy, Agriculture and Science and Technology to explore biofuels as an important component of the energy mix.
While the government is supportive of the establishment of a biofuels industry, it still has to finalise a national biofuels strategy.
On the other hand, local farmers, entrepreneurs and groups that represent some of the country’s unemployed and historically-disadvantaged people are growing impatient, as they are eager to reap the advantages of producing biofuels.
And, judging from the experiences of overseas countries which have managed to grow their bio-fuels industries, government support is vital.
Local farmers, in particular, recognize much potential in a budding biofuels industry, as it will allow them to improve revenues on crops such as maize and sunflower, which have been selling for less than the average input cost on the local market.
While some farmers have started producing their own biodiesel from oil seeds such as sunflower and soy to supplement conventional diesel for their own use, large-scale production will require a structured economic and regulatory framework.
Besides producing oil seeds that can be converted into biodiesel, the South African agricultural industry also produces starch-rich local crops, such as maize, sugar cane and sorghum, which can be converted by a fermentation process into bioethanol.
To ensure the development of the biofuels-production industry in line with the government’s vision, investors and interested parties, such as GrainSA, which represents grain farmers, are calling for clarity on the government’s strategy.
They are also mooting that the government should change its voluntary policy on blending bioethanol into petrol and biodiesel into petroleum-based diesel, and follow in the footsteps of several developed countries by enforcing a mandatory blending regime on oil companies.
Mandatory blending by oil companies will ensure that the biofuels industry is promoted and develop-ed, and will provide certainty to investors.
GrainSA is supporting a project proposed by Ethanol Africa to build the first of eight bioethanol plants, in Bothaville, in the Free State.
GrainSA biofuels spokesperson Fanie Brink tells Engineering News that the organization’s members view bioethanol production as a promising intervention to counter the challenge of low grain prices and South Africa’s six-million-ton maize surplus.
About 400 maize farmers and GrainSA members, grouped under Grain Alcohol Investments, are contributing between 160 000 t/y and 200 000 t/y of maize to pay for their shareholding in Ethanol Africa.
The proposed Bothaville plant, which is scheduled to start production in 2007, will process between 370 000 t/y and 400 000 t/y of maize to produce 155-million litres of ethanol.
Although the government has not yet finalized a national strategy concerning biofuels, it could become involved in the project itself, as the Energy Development Corporation (EDC), a division of CEF, is investigating the possibility of acquiring a 30% stake in Ethanol Africa.
The fact that South Africa is phasing out the use of lead by the beginning of next year is viewed as a boon to the ethanol industry, as ethanol can be used as an additive to boost the octane number of unleaded fuel.
Hence, from the beginning of next year, there will be local demand for bioethanol.
CEF suggests a 10% blending ratio with conventional petrol.
Based on this proposal, and taking into account that South Africa uses about 11-billion litres of petrol a year, there is scope to produce 1,1-billion litres of bioethanol a year.
As bioethanol, as opposed to synthetic ethanol, will be used, between 10% and 15% of the product can be blended with conventional petrol, without it being necessary to adapt vehicles to use the product.
Nevertheless, EDC commercial manager Sibusiso Ngubane emphasises that the uptake of bioethanol in the South African liquid-fuels industry will be an issue of price competitiveness.
Current crude-oil prices and the long-term price forecast for oil favor the introduction of bio-fuels.
By using South African feedstocks and technology, bioethanol can be produced for R2,50 a litre, while the basic local fuel price is more than R3 a litre.
The economic viability of producing biofuels will only be threatened if the crude oil price falls below $40/bbl.
Measured against the pollutants emitted to produce economic wealth, South Africa is the third highest producer of carbon-dioxide (CO2) in relation to per capita income in the world.
Compared to the use of crude oil, bioethanol reduces CO2 emissions by 60%.
Compared to the use of oil from coal, it produces five times less CO2 emissions.
Biofuels are not only an environment-friendly alternative to the use of conventional fossil fuels, but their production also unlocks significant socioeconomic benefits.
The production of biofuels, including ethanol, creates about 100 more jobs than crude-oil refining.
A national study conducted into the socioeconomic benefits of the bioethanol industry alone - based on the 10% blending ratio envisaged by CEF - found that the production of bioethanol can support 35 000 additional jobs, or protect such jobs.
The number of jobs that can be supported or protected is about the same as the total number of assemblers employed by the motor industry.
However, government initiatives to assist the motor industry equate to a subsidy of about R10-billion a year, or R250 000 per job annually.
On the other hand, the government incentive for the biodiesel industry, which entails a 30% reduction in the fuel levy, is equivalent to a subsidy of R10 000 per job a year.
It is being mooted that the 30% reduction in the fuel levy should also be extended to the bioethanol industry.
If a 10% bioethanol blending ratio is achieved, bioethanol will add 0,25% to the country’s GDP.
In addition, a 10% bioethanol blending ratio will enable South Africa to save R2,5-billion a year in imports, which equates to a reduction of 1% in overall national foreign expenditure.
A local bioethanol industry will also serve as a hedge against high oil prices, reducing the effects of high oil prices, as the rising profits of local producers will increase, and the producers will be taxed locally.
Depending on future oil prices and ethanol demand, the country and its neighbours in the Southern African Development Community could even become competitive bioethanol exporters.
The production costs of conventional ethanol and biodiesel in developed countries are two to three times the cost of production in the developing world.
Contrary to the bioethanol industry, the pricing model for the local biodiesel industry suggests that there will be a shortfall of about 2c/l at the prevailing oil price.
The government’s aim is that bio-fuels should account for 40% of South Africa’s renewable energy, to achieve the target of 10 000 GWh of renewable energy by 2013.
The government’s engagement with stakeholders is in line with the International Energy Agency’s (IEA’s) recommendations for developing a national biofuels strategy.
The IEA’s recommendations include performing a cost-benefit analysis, compiling a regulatory policy, establishing industry partnerships and strengthening international representation and collaboration.
In line with the recommendations, South Africa has, among other things, completed a baseline cost-benefit analysis, set the target of achieving a contribution of 10 000 GWh of renewable energy by 2013 and agreed on incentives which include once-off capital subsidies and a 30% reduction in the fuel levy on biodiesel.