| Gasifier Engine | Gasoline Engine | |
| Investment Cost | 90,000.00 | 25,000.00 |
| Fixed Cost (P/day) | ||
| Depreciation 2/ | 31.70 | 8.81 |
| Interest on Investment 3/ | 8.45 | 2.35 |
| Repair and Maintenance 4/ | 3.52 | 0.98 |
| Insurance 5/ | 1.06 | 0.29 |
| Sub-Total | 44.74 | 12.43 |
| Variable Costs (P/day) | ||
| Rice Husk Fuel 6/ | 40.00 | - |
| Gasoline 7/ | 6.75 | 324.00 |
| Engine Oil 8/ | 2.67 | 2.67 |
| Sub Total | 49.42 | 326.67 |
| Total Costs (P/day) | 94.15 | 339.09 |
| Cost per hour | 11.77 | 42.39 |
| Savings per Day | P244.94 | |
| Payback Period 9/ | 1.22 years | |