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Table 8 Impact comparison of bioenergy and its conventional alternative with regard to GWP and WSFP

From: Uncertainty analysis of the environmental sustainability of biofuels

  Difference of impacts (biofuel minus fossil fuel) compared to fossil impact Probability that biofuel has lower impacts than the fossil fuel
  GWP 20 (%) GWP 100 (%) GWP 500 (%) WSFP (%) GWP 20 (%) GWP 100 (%) GWP 500 (%) WSFP (%)
Biodiesel −3 −2 −3 271505 79.0 78.1 84.5 0.0
Ethanol 0 0 0 136742 46.9 47.8 48.9 0.0
Biogas mix 45 −29 −63 −38 13.7 81.6 99.9 65.3
bg_agri 111 −10 −63 −16 1.9 59.8 100.0 55.1
bg_biowaste 88 −15 −63 −41 5.0 62.9 99.3 47
bg_sewage 4 −43 −63 −36 47.1 95.0 100.0 51.8
bg_grass 28 −8 −31 270 22.8 58.2 92.1 72.1
bg_whey 16 −25 −44 16 31.5 80.1 98.3 66.6
  1. Probabilities are derived from a pairwise comparison for the 1000 LMC runs based on ecoinvent data. Absolute numbers are presented in Table 4