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sectoral economic costs and benefits of ghg mitigation - IPCC

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Transport<br />

Figure 8<br />

Net Energy Balance per Gallon <strong>of</strong> Ethanol (energy (in Btu) contained in one gallon <strong>of</strong> ethanol minus energy required to<br />

produce the gallon)<br />

80000<br />

70000<br />

60000<br />

BTU/Gallon<br />

50000<br />

40000<br />

30000<br />

20000<br />

10000<br />

0<br />

Dry Mill<br />

Wet Mill<br />

Sugarcane<br />

Dry Mill<br />

Wet Mill<br />

W. Biomass<br />

H. Biomass<br />

W. Biomass, 1/2 kWh<br />

H. Biomass, 1/2 kWh<br />

W. Biomass<br />

H. Biomass<br />

W. Biomass, 1/2 kWh<br />

H. Biomass, 1/2 kWh<br />

Current Case<br />

Near Future Case<br />

Future Case<br />

Source: DOE, 1999; Moreira <strong>and</strong> Goldemberg, 1999<br />

204

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