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Table 10 Cost parameters included in the sensitivity analysis

From: The commercial performance of cellulosic ethanol supply-chains in Europe

Parameter % Variation relative to base-case Remark
  Minimum Maximum  
Fixed capital investment 0.7 1.3 A range of +/- 30% was considered sufficient to cover uncertainties in capital cost.
Cost of biomass 0.6 1.7 A range of -40% to +70% approximates to the 15th and 85th percentiles obtained in the survey of EU cost estimates for softwood and straw.
Enzymes 0.5 1.5 A range of +/- 50% was considered reasonable given the uncertainties in the costs of enzyme production.
Cost of ethanol 0.3 1.85 The minimum -70% reflects the price of ethanol valued on an energy basis with an oil price of US$40 barrel-1. The maximum +85% reflects ethanol valued on a volume basis plus subsidy, assuming an oil price of US$150 barrel-1.
Solid fuel revenue 0.7 1.3 A range of +/- 30% was considered sufficient to cover uncertainties in the retail price of solid fuel.
Distribution cost 0.7 1.3 A range of +/- 30% was considered sufficient to cover uncertainties in distribution cost.
Effective discount rate 1 2 A discount rate range of 7–30% was considered sufficient to cover uncertainties in how a plant may be financed.