Quote:
Originally Posted by tumnasgt
I totally agree. The trouble is trying to get all the data. I don't think the oil companies are going to be keen to announce how energy is used to find, get, process, and ship oil-based products. Nor are the coal mining companies likely to say how much energy is used to find, mine, process, and ship the coal.
If laws were passed to require that total production energy consumption + CO2 emissions are published, all sorts of interesting things would be revealed.
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These numbers are available if you look for them. If I remember correctly, 80% of the energy in the well makes it to the fuel tank for gasoline and 84% for diesel. This was a few years ago so I could be remembering wrong or it may have changed. I have never found anything for coal but then again I haven't looked either.