There has been a lot of talk about efficiency of production for gasoline and electricity. I thought it might be nice to add some numbers to the discussion.
The numbers I am listing are the percent efficiency, energy in the "fuel" divided by the total energy to produce it, from Greet 1.7 (2005). There may be later values, but I doubt they are much different. ANL gives two sets of numbers, for California, and average for the whole U.S.
WELL-TO-PUMP OR MINE TO PLUG EFFICIENCY
.........................Calif........U.S.
Electricity...........45.9%.....38.1%
Gasoline (RFG).....80.7........80.8
Diesel #2............82.8........82.6
I can look up efficiency for other fuels if people are interested
Ernie Rogers
Quote:
Originally Posted by roflwaffle
That's true, and at the same time it isn't truthful to ignore or trivialize the energy needed to extract, refine, and transport oil/gasoline. Very few look at well to wheels efficiency, or even mention that with a PV setup or something similar the efficiency of electricity generation is something of a moot point.
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