Nrdc Biofuels, Luc, And Lifecycle Ghg Analysis

Traditional Biofuels Lifecycle GHG Analysis Growing feedstock Refining Driving
Corn ethanol industry 20% better than gasoline, efficient new plant 35-45% better
Cellulosic 70-95% better than gasoline
GREET model is gold standard

Biofuels Plus D irect Land-use Change Growing feedstock Refining Driving Clearing new land for feedstock

Biofuels Plus Indirect Land-use Change Growing feedstock Refining Driving Clearing new land for feedstock Market dynamics

Growing feedstock Refining Driving Clearing new land for feedstock Market dynamics Searchinger et al. in Science GREET WHRC CARD: FAPRI
Corn ethanol: 73 g CO2eq/MJ = 21% reduction for corn @ 172 bu/acre, 2.71 gal/bu
Cellulosic28 g CO2 eq/MJ = 70% reduction for switchgrass, 8 tons/acre, 82 gal/ton
Corn - 0.85 acres cleared per acre diverted; Switchgrass – 1.27 Searchinger: 4.7 Mg CO2eq/acre cleared

Searchinger et al. in Science Growing feedstock Refining Driving Clearing new land for feedstock Market dynamics

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Nrdc Biofuels, Luc, And Lifecycle Ghg Analysis

by ngreene on Jun 25, 2008

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Nrdc Biofuels, Luc, And Lifecycle Ghg Analysis — Presentation Transcript