18 Biofuels: Strengths & Opportunities Fossil fuels contribute to global warming by increasing GHG emissionsBiofuels reduce GHG emissions (closed carbon dioxide cycle)FossilsBiofuels
19 Biofuels: Strengths & Opportunities Energy Security:Decrease dependency on crude oilDecrease imports of crude oilEnergy diversificationRenewableLess toxicSustainable use of otherwise problematic waste products
20 Biofuels: Strengths & Opportunities Economic BenefitsEconomic use of wastelandUseful co-productsCarbon Credit OpportunitiesAdditional distribution channel for agricultural productsDecentralized production and thus strengthen rural economies
21 Biofuels: Weaknesses & Threats The biofuel market is a relatively new marketFeedstock production of biofuels is in competition with food productionFeedstock production may be land consumingFeedstock production largely depends on many vagaries of nature
22 Biofuels: Weaknesses & Threats Economic viability: Fuel prices largely depend on the sale of co-productsLower energy content per volume than fossil fuels
23 Special Advantages of Biodiesel The properties of biodiesel (viscosity, ignition properties) are similar to those of fossil diesel.Cetane number and lubricating effect of biodiesel are significantly higher than fossil diesel.The toxicity of biodiesel is lower compared to fossil diesel.Biodiesel can be blended with petrodiesel at any ratio.
24 Special Advantages of Bioethanol Ethanol has a high octane number.Ethanol contains 35% oxygen which reduces particulate and NOx emissions from combustion when compared to the combustion of petrol.Combustion of ethanol results in low CO emissions.Bioethanol can be blended with gasoline at any ratio.Ethanol contains no sulfur, causing no emissions of sulfur oxides.
26 The Effect of Moderating Oil Prices At oil prices over US$50 per barrel, biofuels are a cost-effective option to displace conventional gasoline and diesel fuel for transport.At world crude oil prices of US$80 to $US100 per barrel, biofuels from a wide variety of cellulosic feedstock, including crop residues and forest residues as well as crops that are not common today, would be cost-competitive.Since biofuels can be produced from many different feedstock that are grown under very different conditions in many different places, there are considerable cost differentials and thus significant opportunities for biofuels trade