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The Role of Biofuels in Transport

James Primrose, BP Biofuels There are a range of factors that impact on the effectiveness of different fuel use in transport, with liquid fuels generally being preferred in respect to their energy density by volume and mass. If done well, biofuels have the potential to significantly reduce GHG emissions compared to gasoline, with savings ranging from around 50% to over 70% for ethanol from wheat, sugar cane and cellulose. The litres of biofuel that can be obtained on a per hectare basis vary between the feedstock used, the area it is grown, and the process used (bioethanol, biodiesel and advance biofuels). Biofuelled vehicles can make significant contributions to decarbonising transport, even compared to electric vehicles, including through fuel blends for conventional, advance, mid hybrid and full hybrid vehicles. Work on Life Cycle Analysis suggests that whilst hybrid and electric vehicles deliver lower GHG emissions, their embedded emissions can be significant, with battery reliability being a key factor. Based on the BP Energy Outlook 2030, the demand for liquid fuels is expected to increase in non-OECD countries and this will be Read more…

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The Role of Biofuels in Transport 2011.pdf 875.84 KB
22nd
Sep
2011

Transport 2050: the potential role of hydrogen

Professor Paul Ekins, UCL Bearing in mind that transport is part of the wider energy system, scenarios and models to 2050 can help examine a range of potential developments, which all have implications for the future energy system, including the role of: hybrids; electric vehicles; energy storage; fuel cells; biofuels; infrastructure requirements; and transport behaviours. UK MARKEL runs have considered carbon targets and scenarios, carbon emissions, and sectoral analysis (carbon, demand, transport, fuel, biofuels), suggesting that fuels and technologies are very sensitive to a range of assumptions (carbon, technology costs, discount rates and timescale). Consideration of the role for accelerated technology development (ATD) of hydrogen and fuel cells, suggests a need for more public policy attention, taking account of factors such as which technologies to support and to what extent, the need to consider infrastructure requirements and the impact of behaviour and patterns of mobility. Preliminary results suggest that: transport technology choices are sensitive to assumed patterns of demand and that changes in the transport sector have significant impacts on the overall energy system; there are trade-offs between biofuels and Read more…

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Transport 2050 the potential role of hydrogen 2011.pdf 1 MB
22nd
Sep
2011

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