『Abstract
　China promulgated the Medium and Long-Term Development Plan for Renewable Energy in 2007, which included sub-targets of 2010 and 2020 for various renewable energy technologies. Almost all the 2010 sub-targets have been met and even surpassed except non-grain fuel ethanol. There is debate surrounding the questions of whether and how the country will be able to meet the 2020 biofuels target. This paper provides the assessment of potential technology pathways to achieve the 2020 target regarding their respective resource potential and supply cost. Barriers and policy options are identified based on broad literatures review. And an overview of biofuels projections is presented to provide insight into the comparison of various policy scenarios. The study shows that China can potentially satisfy non-grain fuel ethanol target by 2020 from technology perspective. But she will probably fall far short of this target if current situations continue. Additional policy efforts are needed. Meanwhile, the target of biodiesel production has high probability to be achieved. However, if given support policies, it will develop better.

Keywords: Biofuels; Energy policies; Renewable energy』

1. Introduction
2. Current status of biofuels development in China
3. Potential technology options of biofuels by 2020
　3.1. Fuel ethanol from non-grain starch and sugar crops
　　3.1.1. Resource potential
　　3.1.2. Supply cost
　　3.1.3. Challenges
　　　3.1.3.1. Economic supply of feedstocks
　　　3.1.3.2. Uncertainty of emission reduction of starch and sugar energy crops-based ethanol
　3.2. Biodiesel from waste oil
　　3.2.1. Resource potential
　　3.2.2. Supply cost
　　3.2.3. Challenges
　3.3. Biodiesel from oil-bearing trees
　　3.3.1. Resource potential
　　3.3.2. Supply cost
　　3.3.3. Challenges
　3.4. Second generation biofuels
　　3.4.1. Resource potential
　　3.4.2. Supply cost
　　3.4.3. Challenges
4. Policies needed to achieve 2020 targets
　4.1. Screening of current policies on biofuels deployment relevant policy
　4.2. Barriers and options for policy response
5. A review of biofuels projection and its implications
6. Conclusions
Acknowledgements
Appendix
References