Table 3 Ranking of substrates
From: Towards marketing biomethane in France—French consumers’ perception of biomethane
| Position | Biodegradable household waste | Agricultural residues | Intermediary crops | Energy crops |
|---|---|---|---|---|
| 1 | 8 | 11 | 0 | 1 |
| 2 | 9 | 6 | 2 | 1 |
| 3 | 0 | 2 | 13 | 3 |
| 4 | 2 | 0 | 4 | 14 |