Re: Rival Technologies Vie for 'Green' Car of Tomorrow

From: Alex Terrell (alexterrell_at_yahoo.com)
Date: 10/06/04


Date: 6 Oct 2004 02:53:42 -0700

marcus@myrealbox.com wrote in message news:<mo19l01dsrvs8e3ns62jn12orf99h3n7j4@4ax.com>...

No mention of hybrid cars? These are here now, and I expect a big
improvement soon:

Most cars do less than 1 hour of driving and 30 miles per day. That
currently requires a gallon of fuel. In an efficient electric hybrid
vehicle, that could be provided by batteries providing about 10 KWhrs
of electricity. (My estimate - is that about right?)

So, most of the time, you do the school run, go to work, come home
entirely on electric power. At night, the car tops up its 10 KWhrs.

10 KWhrs costs about 25p in the UK. It can be provided from a normal
plug over 3 hours. 1 Gallon costs about £3.50. It seems a no-brainer.

For longer distance, a high efficiency diesel or fuel cell or whatever
kicks in. But on average, the car is now mostly powered by off-peak
electricity.

This requires no new technology. The biggest take-up issue is the fact
that most cars (in Europe) are street parked.

A question: What happens to surplus off-peak electricity? Is it mostly
used by night time applications? Or is it wasted somehow? Large scale
take up would of course increase the price of night time electricity.



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