| S/N | Fuel | Plant heat RATES (Btu/kWh) | Fuel heat contents |
| 1 | Coal | 10,080 | 9710 (Btu/lbs) |
| 2 | Petroleum | 10,156 | 139,713 (Btu/US gal) |
| 3 | Natural gas | 10,408 | 1029 (Btu/ft3) |