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Is Wireless EV Charging the Better Way?

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EVprofessor
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Re: Devil is in the details
EVprofessor   11/18/2013 4:04:46 PM
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LetoAtreidesII ,Well your comment reinforces all I said, Did you read your own comment? "Please get real> ...
 

As you said, "Please GET REAL ! >

LetoAtreidesII
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Re: Devil is in the details
LetoAtreidesII   11/18/2013 9:02:08 AM
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EV professor wrote "However any EV can charge from solar or other alternatively sourced electricity, so if power is OUT"

Please get real>

1st if you compare an EV to auto than for the 60 mile range you are talking a 1 time a week fill up for an ICE.  I personally fill every 2 weeks.  so a rolling black out mean little especially if you keep you tank about 1/2.  An EV needs a charge every day if the blackout matches you charging time your car is useless.


2. Your home solar/wind.  I have 2kw of solar wind combined but that is a 12,000 system so now you need to pay up 12K plus installation I installed mine myself.  Also that power only works if it is sunny or windy I have 1200, solar, 800 wind.  I can tell you from experiance many days would I not get enough to charge an EV fully so on a rainy or snowy cloudy day i guess you would just call in powerless and stay home.

As always the devil is in the deatails it sounds so simple to say just charge from wind or solar if power is out but when you dig into the details you find it is not so easy.  This said with a big enough system and home battery capacity you could get through this problem but now your talking 50K+ dollars.  I will stick with hybrid tech it offers the best of both worlds range and reduction in fuel usage.

LetoAtreidesII
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Re: chicken before the Egg
LetoAtreidesII   11/18/2013 8:51:36 AM
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", The capacity of the grid is the capacity to generate ." This is not true their is generation capicity and distribution capacity that is why every summer when the AC's are running heavy you get transformers going out from overheating and overload.  This is not a case of not enough generation but to much draw through that section of the grid.  This problem will only get worse as people start putting chargers that draw the equivelant power of and AC unit on to charge their cars by the 100 of thousands.


This means we not only need more generation but more power lines and substations and new transformers all over the nation.

EVprofessor
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Re: chicken before the Egg
EVprofessor   11/17/2013 9:36:45 PM
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@JMiller, The capacity of the grid is the capacity to generate . They are the same . Perhaps you need a better understanding of how things you depend upon such as the electricity from "The Grid" actually work. I understand it is dificult to understand as it is technically complex and the utility companies seem to keep their operations secret for their own purposes...

EVprofessor
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Re: good alternative
EVprofessor   11/17/2013 9:25:14 PM
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@JMiller, Interesting that you, who are not an expert, has heard of such sensitive people, and I who have been involved in electricity and electronics continuously since 1957 have not. Perhaps it is better to listen to experts, in place of those who are admitedly not experts. In the mid 1980s a scientific investigation published results from overhead high power electric lines which demonstrated that a usage of common insect spray in the home was three times more likely to have children with lukemia, than homes directly under the "Power Lines." I know some older type pacemakers were affected by defective microwave ovens but the new ones are not because of improved design. 

Still Wireless EV charging is not a good idea as the equipment is so inefficient.  We need to improve efficiency as that is why EV are better, let us not try to waste the energy and raise the cost of the system those are both NOT enhancements... 

EVprofessor
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Re: Devil is in the details
EVprofessor   11/16/2013 5:46:46 PM
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Regarding your point #4, if there is a power outage, you cannot refuel your "Smog-Mobile" becaust the gasoline cannot be gotten out of the underground tank and into your tank without the electric pump at the fuel retailer. However any EV can charge from solar or other alternatively sourced electricity, so if power is OUT, as happened in Japan last year, when the nuke generating site was destroyed, only electric cars were on the road as every emergency generator with its own fuel tank of a large reserve could recharge the cars, even ones at hospitals, police stations, and city hall. But the gasoline retailers had no back-up generators...

jmiller
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Re: chicken before the Egg
jmiller   11/16/2013 5:02:45 PM
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Incredible statistics.  I did not know there was so much capacity on the grid.  I am wondering do we have the capacity to generate this much electricity as well.  Generating the electriccity has always been a concern of mine when it comes to electrical cars.  Do we use more coal generating electricity than we would by converting to ethanol or other non-fossil fuels.

jmiller
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Re: chicken before the Egg
jmiller   11/16/2013 5:02:43 PM
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Incredible statistics.  I did not know there was so much capacity on the grid.  I am wondering do we have the capacity to generate this much electricity as well.  Generating the electriccity has always been a concern of mine when it comes to electrical cars.  Do we use more coal generating electricity than we would by converting to ethanol or other non-fossil fuels.

jmiller
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Re: good alternative
jmiller   11/16/2013 4:32:09 PM
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I am by no means an electrical expert. But I have heard of people that are emf or electromagnetic field sensitive. Would this type of device freak them out?  My guess is yes.

jmiller
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Re: This is a really bad article
jmiller   11/16/2013 4:29:41 PM
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I was wondering about the health and safety of such a device as well.  I didn;'t know the details and what volts or amps would do what but I think you bring up a good point regarding the need to know that.  I too was wondering how they would control the "feedback" or how any device could control such energy.  All and all it's neat to dream/think about but there are a lot of unanswered questions.

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