APPENDIX C
Energy Equivalents
These tables give the approximate equivalent electrical energy, in kW·h, for various primary sources of energy. We state the type of power plant in use; typical utilization efficiencies were assumed to arrive at the equivalent electricity. Actual plants may differ from these approximate values by +/−15%. For geothermal binary plants, the brine outlet temperature is very important and will strongly affect the output.
Table C.1. U.S. Customary units.
| Primary “fuel” source | Electricity kW·h | Conversion system |
| 1,000 ft3 natural gas | 100 | Simple cycle gas turbine |
| 1,000 ft3 natural gas | 160 | Combined steam & gas turbine |
| 1 barrel fuel oil | 720 | Double-reheat, regenerative Rankine cycle |
| 1 ton (2,000 lbm) lignite | 1,260 | Single-reheat ... |
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