> Even with purely coal sourced electric power the result compares favourab=
ly with the current target Euro 5 emission regulations which stipulate a st=
ringent 5.2 litres/100km or about 42 mpg (US gallons) or 55 mpg (real gallo=
ns). That is significantly better than the current average for even new veh=
icles. This is an extremely significant result (assuming it is correct) as =
it suggests that coal sourced electric energy plus electric drive is overal=
l noticeably superior to current hydrocarbon based propulsion by this metri=
c. Town cycle use is noticeably worse than overall average for hydrocarbon =
powered engines whereas electric vehicles might reasonably be expected to b=
e closer to the average in town cycle use - suggesting that coal sourced en=
ergy for electric propulsion is superior to hydrocarbons in town use.

_____________

I hadn't encounteerted any of the following when I wroyte the above yesterd=
ay:

EPA are now proposing 62 mpg (US) by 2025.

        http://news.sciencemag.org/scienceinsider/2010/10/epa-proposes-62-m=
pg-fuel.html?etoc

And Methane is about to become the next big thing in Greenhouse
emissions mitigation efforts.


http://news.sciencemag.org/scienceinsider/2010/10/nations-strengthen-pact-t=
o-stem-.html?etoc

NASA's Dr Schindell last year discovered [tm] that previously not
recognised gas-aerosol interactions meant that Methane plays a
significantly larger part in radiative forcing than had heretofore
been allowed for.

         "We found that gas-aerosol interactions substantially alter
the relative importance of the various emissions. In particular,
methane emissions have a larger impact than that used in current
carbon-trading schemes or in the Kyoto Protocol. Thus, assessments of
multigas mitigation policies, as well as any separate efforts to
mitigate warming from short-lived pollutants, should include
gas-aerosol interactions."

So te 2004 incept 'Methane to Markets' group has renamed itself to
"The Glpbal Methan Initiative (supported by 38 naytions and several
industry groups)  and increased its efforts as a consequence of
Methane assuming higher relevance in mitigation strategies

                 http://www.sciencemag.org/cgi/content/short/326/5953/716

                 http://www.methanetomarkets.org/documents/gmi_ministerial.=
pdf

Enjoy

                  Russell

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