On 22/08/2019 8:56 AM, Jim Cathey via Mercedes wrote:
- there is at least a 10% loss in energy transfer from generation to motion,
probably more like 30%.
My recollection is that in fuel-powered vehicles, only about 1/3 of the energy
turns into motion.
1/3 is heat out the exhaust pipe, and 1/3 is heat out the radiator et al.
On the generating side you have the same kinds of losses, but different
magnitudes due to
economies of scale. Also, the grid is not particularly efficient, and then
there's losses in both
charging, and discharging, batteries...
-- Jim
Do the differences change in cold weather?
A fuel powered vehicle produces heat which is obviously needed for
comfort and to keep the windows clear. Electric powered vehicles need to
produce that heat by resistance means I would assume and that has to be
a problem for them in cold weather when the battery is probably not
performing at its peak ability as well.
Randy
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