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Sensitivity analysis of primary energy balances of the ethanol production systems studied
| MJ primary energy MJ−1 ethanol | ISO | RED | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Off-site | A | A+ | B | B+ | Off-site | A | A+ | B | B+ | |
| Base case | 2.8 | 2.7 | 2.6 | 2.6 | 2.5 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 |
| Off-site enzyme activity +50% | 2.7 | 2.0 | ||||||||
| Enzyme dosage based on [7] | 2.5 | 1.9 | ||||||||
| Solid fuel substitutes coal | 2.7 | 2.6 | 2.5 | 2.5 | 2.4 | |||||
Results for alternative data regarding purchased enzymes and substituted products
