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Water Use Efficiency of Our Energy Sources

Here is a heat rate conversions chart from the Energy Information Administration. For more information about water use, check out "The Intertwined Tale of Energy and Water".

FUELSOURCE/POWER GENERATION 

LOW-END WATER USE  (gallons/millionBtu)  

HIGH-END WATER USE  (gallons/millionBtu)             

                                   
Natural Gas 3 N/A
Coal 41 164
Hydrogen 143 243
Liquid natural gas 145 N/A
Petroleum/Oil-electric sector 1,200 2,420
Fuel ethanol 2,510 29,100
Biodiesel 14,000 75,000
     
Hydroelectric 20 N/A
Geothermal 130 N/A
Solar Thermoelectric 230 270
Fossil Fuel Thermoelectric 1,100 2,200
Nuclear 2,400 5,800
 






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