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Quote:

Originally Posted by island911 (Post 11825526)

Oh my... I would really like to hear more about how gasoline production takes more energy to produce than it gives.

Many in the US burn E85. For the sake of conversation let's look at ethanol.

Please see page 2 of How Much Energy Does It Take to Make a Gallon of Ethanol? David Lorenz • David Morris Revised and Updated August 1995. Seems like an honest paper - more research required. Feel free to find a better paper.

Energy needed to make 1 gallon of ethanol = 81,090 BTU
Energy from 1 gallon of ethanol = 84,100 BTU
There are some Co-product credits not sure if these are all actually used.

Then you have to burn it in an ICE at say 17-21% efficiency. EV motors I think are around 85-90% efficient.

I'm still digging around for better analysis that includes straight gasoline. The point is gasoline doesn't magically pull itself out of the ground and come out of the gas station pump hose.

Quote:

Originally Posted by hcoles (Post 11825660)

Many in the US burn E85.

Please see page 2 of How Much Energy Does It Take to Make a Gallon of Ethanol? David Lorenz • David Morris Revised and Updated August 1995. Seems like an honest paper - more research required. Feel free to find a better paper.

Energy needed to make 1 gallon of ethanol = 81,090 BTU
Energy from 1 gallon of ethanol = 84,100 BTU
There are some Co-product credits not sure if these are all actually used.

Then you have to burn it in an ICE at say 17-21% efficiency. EV motors I think are around 85-90% efficient.

I'm still digging around for better analysis that includes straight gasoline. The point is gasoline doesn't magically pull itself out of the ground and come out of the gas station pump hose.

"Many"? Not hardly. "A small percentage" is far more accurate. As far as Ethanol is concerned, it is a nightmare mandated by politicians that has never made sense in the scientific realm but that never stopped them before.