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 |