Well done. I have neglected to do the calculations, but this shows pretty clearly that if we continue using fossil fuels for electrical energy production, which we will, then electric cars at this point in time are not a good idea.
I might buy one, depending on my financial distributions when I retire in 40 days. I travel outside town about once a year, otherwise I will be driving on all electric energy.
I would not buy it. I think that this GREEN movement is too polytical. We have so many nice reliable cars to choose from, so why to jump into this one. It is expensive and with no reliability data.
I am content to let the "early adapters' find the reliability and serviceability issues with the Volt. As a retired engineer with experience in reliability and design of electronics, including the initial launch of vehicle electronic engine control systems, I am impressed with the complexity of the battery management system, the batteries themselves [especially the high voltages involved], and the radically new drivetrains on this vehicle. How many of you have had a "Service Engine Soon" light come on in your existing car?? Ask me again in 5+ years!
Okay you guys win. Disregard my initial post (GMStoffa 8/10/11 11:21pm). I bought a Volt because: 1.) It is damn quiet and has a great Bose sound system. 2.) It looks sharp. 3.) It is extremely comfortable 4.) It has FANTASTIC acceleration. (It also gets great mileage, supports hybrid technology to move away from dependency on total combustion engines cars, and has a greater range than any pure electric car on the market.... but I don't want to go through those arguments all over again). You are all right - the Volt is expensive. But hey, there is a wide variety of cars on the market: you can spend a little, like with a Kia, or go high end with a Lexus, Hummer, or Vette. Buy whatever floats your boat. For me it suits my taste and needs: It is a quiet, comfortable, good looking car that is fun to drive (with minimal trips to the gas station).
I don't really have to do much math here to say that I would never buy a Volt.
My 8 year old Pontiac Vibe has 208,000 miles on it, averages 30-32 MPG and cost a little under $16000. If gas is $4 a gallon and we use 30 MPG for a Vibe/Matrix or something similar, then assuming the electricity is free, it would still be almost five years before the Volt started to pay itself back. The cost to borrow an additional $16,000 to buy the Volt is just a slap in the face on top of that.
Driving a larger, more comfortable car with a 400 mile range and $16000 in the bank sounds like a better idea to me.
By the way, my tax dollars subsidizing (through Federal Tax Credit) someone else's bad math is a slap in my face even though I made the right choice.
I had the Chevy Volt for a week and drove it long distance from Boston into the Catskill Mountains. You can read my Driving Impressions report (and find out if I would buy one) on Automotive Designline, the UBM site for automotive electronics design engineers.
1. The useful energy of 1 kilogram of gasoline in an internal combustion engine is ~4 kWh.
2. The conversion efficiency of the electric generator in the CV is ~20%
3. The electricity used to charge the battery at home was most likely from a coal fired plant.
4. The energy storage of the LI batteries is at best 200 Wh /Kg. An electric car would need to have 200 Kg of battery storage to make up for 10 Kg of gasoline storage.
5. The charging efficiency is 50% at best
So what is it about the Chevy Volt that is green? Do the math.
All this high mileage sounds really great, but I haven't heard anyone say how much their electricity bill has gone up from the charging. Any Total Cost of ownership analysis would have to include that. Curious to know what it is.
The Volt is simply the finest automobile on Planet Earth.
It is Beautiful, solid, elegant and quick. Finer than a CTS.
Besides being the first automobile to be fully electric with an extended range it allows you to decide what kind of mileage you want to have.
The lead engineer tells me that he lives 50 miles from work so he charges his at home at night, drives to work, charges it at work and drives home 5 days a week. 0 mileage there, On the weekends he and his wife takes the kids up North to the Cottage and then dives back home to repeant the sequence.
His average mileage is 100 MPG.
Now if he wasn't taking that long trip on the weekends you tell me what kind of mileage could it be extended to? Far, far more than 100MPG... 300, 500? Big numbers are now conceivable.
As energy efficiency becomes more and more a concern for makers of electronics devices, researchers are coming up with new ways to harvest energy from sound vibration, footsteps, and even electromagnetic fields in the air.
The government wants to study your brain, and DARPA wants to use similar information to give robots true autonomy beyond any artificial intelligence developed to date. Sound like science fiction? It's not.
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A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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