Table 5 Mass and energy balance for the base scenario and the three alternative scenarios
|  | Units | Base case | FERM + 1 | FERM − 1 | NITROREC |
|---|---|---|---|---|---|
Products | |||||
 Yeast oil | kg/t straw | 109 | 142 | 87 | 109 |
 Biomethane | MJ/t straw | 2350 | 1800 | 2750 | 2350 |
 Excess electricity | MJ/t straw | 660 | 460 | 880 | 660 |
Inputs | |||||
 Enzymes | MJ/t straw | 176 | 176 | 176 | 176 |
 Hexane | MJ/t straw | 270 | 240 | 290 | 270 |
 Ammonia | MJ/t straw | 590 | 590 | 590 | 100 |
PEDfossil | |||||
 Yeast oil | GJ/t oil | 11.9 | 9.8 | 12 | 8.3 |
 Fish feed | GJ/t feed | 14.1 | 13.7 | 14.1 | 13.4 |
 1 tonne salmon | GJ/t fish | 28.5 | 27.9 | 28.5 | 27.5 |