Table 4.
Overall economic evaluation of the four OFMSW biorefinery scenarios.
| Scenario I | Scenario II | Scenario III | Scenario IV | |
|---|---|---|---|---|
| Capital cost | ||||
| Total capital cost (Million €) | 68.6 | 51.0 | 73.9 | 56.2 |
| Operating cost | ||||
| VOC (€ t−1 OFMSW) | 135 | 109 | 9 | 7 |
| FOC (€ t−1 OFMSW) | 39 | 33 | 41 | 35 |
| Net production cost (€ t−1 OFMSW) | 174 | 142 | 50 | 42 |
| Revenues | ||||
| Treatment fee (€ t−1 OFMSW) | 34 | 34 | 34 | 34 |
| Sugar syrup (€ t−1 OFMSW) | 20 | 20 | 11 | 11 |
| Biopesticide (€ t−1 OFMSW) | 169 | 0 | 129 | 0 |
| Fertilizer (€ t−1 OFMSW) | 0 | 26 | 0 | 23 |
| Electricity (€ t−1 OFMSW) | 0 | 5 | 23 | 39 |
| Total income (€ t−1 OFMSW) | 223 | 87 | 196 | 107 |
| Profitability analysis | ||||
| Gross profit margin (%) | 22 | −66 | 74 | 60 |
| Pay-back time (years) | 15 | −10 | 6.1 | 10 |
| ROI (%) | 5 | −10 | 13 | 8 |
| NPV (Million €) | −22.6 | −97.0 | 41.2 | −2.0 |
VOC, variable operating cost. FOC, fixed operating cost. ROI, return on investment. NPV, net present value.