by aahala » Mon 07 May 2007, 15:22:54
$this->bbcode_second_pass_quote('shortonoil', '6')35 GW is equivalent to 8.5 mb of oil a day. We now use 21 mb per day.
When I saw your post Friday, I almost posted a flame. I KNEW
you were way off on your conversion, but decided to do the
conversion myself. Lordy, lordy, I got the same amount.
The reason I KNEW(!) the figures were wrong was that I
knew the btu inputs from oil and from the total US electric
grid were nearly the same and that the grid is presently
at about 462GWH, rather than 635.
My reason for posting is your first sentence is one of those
unusual things that is both true and misleading at the same
time. We are comparing lemons and lemonade--the btu input
from one(oil) and btu output of the other.
The btu conversion of fossil fuels into electricity is pretty low,
about 3 units to produce one unit. If we were just burning
oil to reproduce today's grid at present fossil to electricity
ratios, it would take roughly 21 mbd of oil.
I don't know the approximate conversion for a car and truck
oil fuel/btu to useful power but that needs to be considered for a
fair comparison.