Electric Car
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IS THIS VINTAGE ELECTRIC WHEEL CHAIR? SCOOTER? GOLF CAR? GOT IT STORAGE AUCTION |  |
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Electric Car
How much electricity does an electric car require?
How much electricity does an electric car require each day to charge its batteries? Hence how much extra electricity capacity must be added nation wide to switch to electric transportation?
It depends on a lot of factors -- how much a person drives, whether it is for a long trip, or commuting in the city, whether the car must accelerate rapidly, whether there are lots of speed changes involved, etc. etc.
I'll give you my example>
I must commute 12 miles to work (and 12 miles back). It takes 20 minutes each way. Most of that travelling is on a freeway at a steady speed. I own a car with a 100 HP engine, so I could probably get by with an electric car with a power in the range of 50 to 100 HP, BUT, that does NOT mean that all of that power is utilized, all the time. When at highway speed, I am using approximately 5 to 10 HP of the maximum (I know this from materials and calculations I have done in the past -- way beyond the scope of this answer).
10 HP * 20 minutes * 2 ways = 18 MegaJoules of energy.
That's just the energy it takes for me to commute back-and-forth to work every day. That isn't much -- it's the same as 5 kWhr
A 1 hour trip to a nearby city (and back) might use as much as 100 MegaJoules (27.7 kWhr).
Keep in mind that you need to speak in terms of energy (Joules), and not power (Watts), because I can charge my (hypothetical) electric car fully in 1 hour using energy at 10 times the *rate*, as if I were to take 10 hours to charge it up. Same energy... different power.
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IS THIS VINTAGE ELECTRIC WHEEL CHAIR? SCOOTER? GOLF CAR? GOT IT STORAGE AUCTION | |
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Audi e-tron concept electric car
How do I convert my car to electric power?
I saw in a documentary that electric car enthusiasts in the US have removed a regular engine from an old car and replaced it with batteries. Apparently it can go very fast and can last up to 5 hours.
If anyone knows of a book, manual or website on how to do it I would appreciate it.
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If you want to do the work yourself, there's help here:
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http://electroauto.com/index.html
and here:
http://www.austinev.org/evalbum/build
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Here are some places to get your car converted to electric:
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http://grassrootsev.com
http://jerryrig.com/convert/
http://www.ampmobileconversions.com/
http://labshelf.com/electric-car-conversion.html
http://www.powerhappy.com/Electricalvehicles.html
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150006318396
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There are also ready-made electric car conversions for sale built by dedicated EV small businessmen and hobbyists - like me. Look at this page:
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http://grassrootsev.com/convert.htm
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The above is run by a guy who takes old, cheap cars with good bodies (mostly from the 1980s) and removes the engine. He then installs brand new electric drivetrains. All these cars do freeway speeds. The best part is the price. These cars start under $5000. You won't get state-of-the-art (ranges are more like 50 miles, not 200) but the low prices mean you'll get your investment back in fuel savings quickly.
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Another place to find used EVs and hobbyist-built EVs is here:
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http://www.austinev.org/evtradinpost/
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I own an old EV, built back in 1980. EVs are extremely reliable. My 25-year-old car has all the original motor and electronic parts from 1980, which have never needed service in all those years.
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