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June 2008 Posts

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  The EVcast
Blog Entry

EVcast #18: Don't Trust Headlines About EVs - Only This One

Friday, June 20th 2008 @ 10:58 AM (not yet rated)    post viewed 3014 times

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  • Myers Motors Update
  • GenePax Water Car Hoax?
  • Battery Leasing
  • More on Plug-in Fire
  • Volt Price Watch
  • Chinese EV for Al Capone
  • Hydrogen Test Drive
  • Listener Feedback

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Comments

Ely Green
Free Access
ElyGreen said on Friday, June 20th 2008 @ 2:22 PM:

Great job guys!!! How can I download this in MP3 format and listen when I'm on the road?

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Bo Bennett
Tuesday Host
Group Administrator
Bo said on Friday, June 20th 2008 @ 2:30 PM:

Click on the down arrow on the black audio bar.  This will download to your PC. :)

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John Briggs
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JohnBriggs said on Friday, June 20th 2008 @ 4:21 PM:

You can also subscribe to it on itunes.

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John Briggs
Free Access
JohnBriggs said on Saturday, June 21st 2008 @ 7:24 AM:

NPR had a piece today on the Zap Xebra.  It was not exactly flattering

http://www.npr.org/templates/story/story.php?storyId=91646154

 

 

 

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Bill Berggren
Free Access
BillBerggren said on Sunday, June 22nd 2008 @ 2:10 AM:

I like the idea of leasing the battery for the purpose of recycling the battery.  Also it provides safety that if the battery fails you can get a replacement at no cost.  However, it would be nice to have the option to buy the battery.  However, you own the car and could always buy batteries from a 3rd party.

I think the future is electric cars and photovoltaics on private homes.  I hate the idea of tearing up the desert to install pv panels so the utilities can control your life.  Homes should be designed to hold pv panels where all new homes are required to have greater than 50% of their foundation area installed with PV.  Photovoltaics can generate power at 200,000 gallons gas equivalent per acre compared to 100 gallons per acre for biodiesel (and you don't need fuel to plant, harvest, and press the crops).

Imagine a city of photovoltaics, electric trams, and electric cars.  Not hard.   The technology not only exists today it is actually cheaper to run your city this way today by a wide margin.

 

 

 

 

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Darell Dickey
Free Access
Darelldd said on Thursday, June 26th 2008 @ 1:19 AM:

Right on the money, Bill!

Why are we so blind about this? Aren't we a nation of innovators? Instead of investing our energy money into domestic projects that provide jobs, increase security and keep our money IN our economy - we toss it out the door like we can afford it. If we could magically divert a year's worth of the money that leaves our economy for oil.... ug! Never mind... hurts to think about it.

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phyllis Dawkins
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PhyllisDawkins said on Friday, June 27th 2008 @ 7:44 AM:

 

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phyllis Dawkins
Free Access
PhyllisDawkins said on Friday, June 27th 2008 @ 7:52 AM:

I just saw on the internet at http://www.electric-cars-plans.com that you can for $67.50 buy plans to build your own electric vehicle and the estimated cost run you about $7,500 dollars the man responsible for the website is a british guy by the name of george jeffery who is better know in britain for building sports cars and developed the EV-1 I am considering buying the plans in july. Not only that but you can also email him with question and he has pictures on how he constructed the frames of the car

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Bo Bennett
Tuesday Host
Group Administrator
Bo said on Friday, June 27th 2008 @ 9:11 AM:

Phyllis, Those plans look great.  I wonder how easy it really is?  I sent the gentleman an interview request... hopefully we can get him on our show.

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Guest
a guest said on Tuesday, July 8th 2008 @ 12:54 AM:

Hi guys. Great work. I'm going to try to 'catch up' with all your posts.

I was REALLY surprised in your discussion about hydrogen cars EVcast 18 that you didn't realize there is greehouse gas production associated with hydrogen generation. You probably didn't know also that by far most industrial hydrogen is made using methane gas. Steam methane reformers are a basic unit process in the oil refining industry, providing the hydrogen needed to transform heavy crude into gasoline.

Here's my take on why hydrogen is a never to be widely adopted technology.

The infrastructure is not installed. Strike one. Most people know that.

Charging batteries is alot more efficient than making hydrogen. Strike two. If battery storage is three times as energy efficient as hydrogen generation (it is, at least) battery storage would use 1/3 the kilowatt hours and produce 1/3 the greenhouse gasses during a comparable "charge". Evidently far fewer people know this than I can imagine.

Electric motors are alot more efficient than hydrogen engines at producing brake horsepower. Strike three. Most motors have efficiencies above 90%, well over double any likely hydrogen engine (or fuel cell). Here's another case where I'm surprised this isn't fairly common knowlege.

I have no clue why hydrogen is still in the batter's box other than it takes a fairly wide range of technical training to tie all these things together. Not to mix a metaphor with a bad pun, but I find it difficult to imagine hydrogen will provide the crowned Joules of our future transportation industry.

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