On Sep 19, 1:50*pm, The Natural Philosopher
wrote:
tony sayer wrote:
In article
s.com, harry scribeth thus
On Sep 18, 10:15 pm, (Steve Firth) wrote:
Dave Liquorice wrote:
On Sun, 16 Sep 2012 10:21:39 +0100, Steve Firth wrote:
And I can use air con, heated seats, headlights and windscreen wipers
without worrying that I'll never get to my destination. I can also
cross Europe in just over a day - that will happen with the Leaf.
Think there is word missing in the end of the last sentance.
Yes, you're right, it's the word "not".
But these electric cars aren't designed for driving across europe or any
great distance. They are for the wage slaves doing the M-F 9-5 25 mile
round trip commute.
Yes also true and for the same people who can't imagine that anyone
would want to do anythign other than drive to work which is less than 12
miles away and then drive back. The fact that such a journey will
*never* recoup the extra they have had to pay for the car does not enter
their minds. Also since they don't understand well to wheel the fact
that the EV will emit more CO2 than a similar sied diesel car doesn't
enter their heads.
Whenever EV makes say their cars will do the equivalent of 230 mpg for
well to wheel CO2 emissions they are using the mix of electricity
supplied in France (mostly nuclear and HEP) for their comparison. Move
to the UK and that 230 mog collapses to 40 mpg because of our dirty
generating mix. Move to the coal capital states of the USA or CHina and
that figure gets even worse.
If I buy an electric car, it will do infinity MPG if worked on a cash
basis.
I can charge it from my solar panels.
The thing is the price of fossil fuels is going to quadruple in the
next decade.
Getting oil from the Aratic won't be cheap.
So harping about fuel costs is ********.
Harry...
Do you think that we'll have enough ground area to put all the solar
panels that will be needed if that idea might have a chance to work?..
Have you done any calculations at all?..
don't be silly.
harry doesn't do sums.
lets do it for him.
http://contemporaryenergy.co.uk/solarmap.htmshows that in winter teh
average insolation is about 500watt hors per sq meter per day.
at 30% efficiency on the PV that's about 150 watt hours per meter per
day. (None at all by night)
No the battery to do about 60 miles is, on a poxy 4 wheeled electric
bicycle, about 15kWh he says.
So he needs 100 sq meters of panels to - on average, charge that up in
the winter. On sunny days it will work,. On gloomy overcast says he will
need at least 8 times more than that.
So to RELIABLY make a trip of 30 miles there, and 30 miles back EVERY
DAY harry will meed 800 sq meters of panels. And of course, that's *only
if he travels at night and charges by day.
The cost will be a little bit shy of a million quid.
Of course in summer he will simply throw the power away, because there
is no way he can use it.
In summer he might generate 80 times as much.
When no one needs it or wants it.
--
Ineptocracy
(in-ep-toc’-ra-cy) – a system of government where the least capable to
lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.- Hide quoted text -
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You are a bloody half wit. A range of renewable technolgies are
needed. Solar is just the Summer one.