Recently, I had the opportunity to go behind the scenes of an ethanol production facility and see that power distribution system as well as see how it all works.  Electricity requirements for ethanol production average 0.75 kWh per gallon.  Some facilities have production capacity over 100 million gallons per year and electricity is a major cost component.  Large facilities are served at medium voltage at 12.47 to 13.8 kV

Ethanol Production