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Geothermal Power Plants, 4th Edition by Ronald DiPippo

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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

US customary units.

Primary “fuel” source Electricity kW·h Conversion system
1000 ft3 natural gas 100 Simple cycle gas turbine
1000 ft3 natural gas 160 Combined steam and gas turbine
1 barrel fuel oil 720 Double-reheat, regenerative Rankine cycle
1 ton (2000 lbm) lignite 1260 Single-reheat ...

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